PROSPECTUS SUPPLEMENT
 
 
Up to $25,000,000 of Shares
 
Common Stock
 
We have entered into an Equity Distribution Agreement, or sales agreement, with Craig-Hallum Capital Group LLC, or Craig-Hallum, relating to shares of our common stock offered by this prospectus. In accordance with the terms of the Sales Agreement, we may offer and sell shares of our common stock having an aggregate offering price of up to $25,000,000 from time to time through Craig-Hallum acting as agent.
 
Our common stock is listed on the Nasdaq Capital Market under the symbol “AEHR.” On September 2, 2021, the last reported sale price of our common stock on the Nasdaq Capital Market was $7.53 per share.
 
Sales of our common stock, if any, under this prospectus may be made in sales deemed to be “at-the-market” equity offerings as defined in Rule 415 promulgated under the Securities Act of 1933, as amended, or the Securities Act, including sales made directly on or through the Nasdaq Capital Market, the existing trading market for our common stock, sales made to or through a market maker other than on an exchange or otherwise, in negotiated transactions at market prices prevailing at the time of sale or at prices related to such prevailing market prices, and/or any other method permitted by law, including in privately negotiated transactions. Craig-Hallum will act as sales agent on a best efforts basis and use commercially reasonable efforts to sell on our behalf all of the shares of common stock requested to be sold by us, consistent with its normal trading and sales practices, on mutually agreed terms between Craig-Hallum and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.
 
Craig-Hallum will be entitled to compensation at a commission rate of up to 3.0% of the gross sales price per share sold. In connection with the sale of our common stock on our behalf, Craig-Hallum will be deemed to be an “underwriter” within the meaning of the Securities Act and the compensation of Craig-Hallum will be deemed to be underwriting commissions or discounts.
 
Investing in our common stock involves a high degree of risk. Before making an investment decision, please read the information under the heading “Risk Factors” beginning on page S-10  of this prospectus and in the documents incorporated by reference into this prospectus.
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
 
Craig-Hallum
 
The date of this prospectus is September 17, 2021.
 
 
 
TABLE OF CONTENTS
 
 
 
 
 
 
 
 
 
 
ABOUT THIS SALES AGREEMENT PROSPECTUS
 
This prospectus is part of a registration statement that we have filed with the U.S. Securities and Exchange Commission, or the SEC, utilizing a “shelf” registration process. By using a shelf registration statement, we may offer shares of our common stock having an aggregate offering price of up to $25,000,000 from time to time under this prospectus at prices and on terms to be determined by market conditions at the time of offering.
 
We provide information to you about this offering of shares of our common stock in two separate documents that are bound together: (1) this sales agreement prospectus, which describes the specific details regarding this offering; and (2) the accompanying base prospectus, which provides general information, some of which may not apply to this offering. Generally, when we refer to this “prospectus,” we are referring to both documents combined. If information in this sales agreement prospectus is inconsistent with the accompanying base prospectus, you should rely on this prospectus. However, if any statement in one of these documents is inconsistent with a statement in another document having a later date—for example, a document incorporated by reference in this prospectus—the statement in the document having the later date modifies or supersedes the earlier statement as our business, financial condition, results of operations and prospects may have changed since the earlier dates.
 
You should rely only on the information contained in, or incorporated by reference into, this prospectus and in any free writing prospectus that we may authorize for use in connection with this offering. We have not, and Craig-Hallum, has not authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and Craig-Hallum is not, making an offer to sell or soliciting an offer to buy our securities in any jurisdiction where an offer or solicitation is not authorized or in which the person making that offer or solicitation is not qualified to do so or to anyone to whom it is unlawful to make an offer or solicitation. You should assume that the information appearing in this prospectus, the documents incorporated by reference into this prospectus, and in any free writing prospectus that we may authorize for use in connection with this offering, is accurate only as of the date of those respective documents. Our business, financial condition, results of operations and prospects may have changed since those dates. You should read this prospectus, the documents incorporated by reference into this prospectus, and any free writing prospectus that we may authorize for use in connection with this offering, in their entirety before making an investment decision. You should also read and consider the information in the documents to which we have referred you in the section of this prospectus entitled “Where You Can Find More Information; Incorporation by Reference.”
 
We are offering to sell, and seeking offers to buy, shares of common stock only in jurisdictions where offers and sales are permitted. The distribution of this prospectus and the offering of the common stock in certain jurisdictions may be restricted by law. Persons outside the United States who come into possession of this prospectus must inform themselves about, and observe any restrictions relating to, the offering of the common stock and the distribution of this prospectus outside the United States. This prospectus does not constitute, and may not be used in connection with, an offer to sell, or a solicitation of an offer to buy, any securities offered by this prospectus by any person in any jurisdiction in which it is unlawful for such person to make such an offer or solicitation.
 
When we refer to “AEHR,” “Aehr Test,” “we,” “our,” “us” and the “Company” in this prospectus, we mean AEHR Test Systems and its consolidated subsidiaries, unless otherwise specified. When we refer to “you,” we mean the holders of common stock of the Company.
 
Aehr Test Systems™, AEHR™ and our logo are some of our trademarks used in this prospectus. This prospectus also includes trademarks, tradenames and service marks that are the property of other organizations. Solely for convenience, our trademarks and tradenames referred to in this prospectus appear without the ® or ™ symbols, but those references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights, or the right of the applicable licensor to these trademarks and tradenames.
 
 
 
S-1
 
 
MARKET, INDUSTRY AND OTHER DATA
 
This prospectus, including the information incorporated by reference, contains estimates, projections and other information concerning our industry, our business, and the markets for semiconductor testing, as well as data regarding market research, estimates and forecasts prepared by our management. Information that is based on estimates, forecasts, projections, market research or similar methodologies is inherently subject to uncertainties and actual events or circumstances may differ materially from events and circumstances that are assumed in this information. Unless otherwise expressly stated, we obtained this industry, business, market and other data from reports, research surveys, studies and similar data prepared by market research firms and other third parties, industry, medical and general publications, government data and similar sources. In some cases, we do not expressly refer to the sources from which this data is derived. In that regard, when we refer to one or more sources of this type of data in any paragraph, you should assume that other data of this type appearing in the same paragraph is derived from the same sources, unless otherwise expressly stated or the context otherwise requires.
 
 
 
S-2
 
 
 
 
 
PROSPECTUS SUMMARY
 
This summary does not contain all of the information you should consider before buying our common stock. You should read the entire prospectus carefully, especially the “Risk Factors” section beginning on page S-10 and our consolidated financial statements and the related notes appearing at the end of this prospectus, before deciding to invest in our common stock.
 
Unless the context requires otherwise, references in this prospectus to “AEHR,” “Aehr Test,” “we,” “us” and “our” refer to AEHR Test Systems, and our consolidated subsidiary.
 
Overview
 
Aehr Test was incorporated in the state of California on May 25, 1977. We develop, manufacture and sell solutions that are designed to reduce the cost of testing and to perform reliability screening and stress testing, burn-in or cycling, of homogeneous and heterogeneous logic and memory semiconductor integrated circuits, sensors, power and optical devices. These solutions can be used to simultaneously perform parallel testing and burn-in of packaged devices, singulated bare die or semiconductor devices while still in wafer form. The expanding automotive, mobility, networking, and telecommunications markets require semiconductor devices that meet increased quality and reliability specifications. To meet these needs, device manufacturers are increasing capacity and performing additional testing and burn-in of their products, creating opportunities for Aehr Test products in package and wafer-level testing. Leveraging its expertise as a long-time leading provider of burn-in equipment, and having installed over 2,500 systems worldwide, the Company has developed and introduced several innovative product families, including the ABTSTM and FOXTM family of systems, the WaferPakTM Contactor and the DiePak® Carrier for making electrical and thermal contact with devices under test, and WaferPak Aligners and DiePak Autoloaders for handling and alignment of devices into the corresponding WaferPaks and DiePaks. The ABTS family of packaged part burn-in and test systems can perform test during burn-in of complex devices, such as digital signal processors, microprocessors, microcontrollers, memory and systems-on-a-chip, and offers individual temperature control for high-power advanced logic devices while in a packaged form. The FOX family of systems are parallel test and burn-in systems designed to contact all devices on one or more wafers or panels of devices simultaneously, thus enabling cost effective full wafer parallel test and burn-in. The FOX systems are also used for parallel test and burn-in of singulated die or very small multi-IC modules. The WaferPak Contactor includes a full-wafer probe card for use in testing wafers in FOX systems. The DiePak Carrier is a reusable, temporary package that enables IC manufacturers to perform cost-effective test and burn-in of singulated bare die or very small multi-IC modules.
 
Industry Background
 
Semiconductor manufacturing is a complex, multi-step process, and defects or weaknesses that may result in the failure of an IC may be introduced at any process step. Failures may occur immediately or at any time during the operating life of an IC, sometimes after several months of normal use. Semiconductor manufacturers rely on testing and reliability screening to identify and eliminate defects that occur during the manufacturing process.
 
    Testing and reliability screening involve multiple steps. The first set of tests is typically performed by semiconductor device manufacturers before the processed semiconductor wafer is cut into individual die, in order to avoid the cost of packaging defective die into their packages. This “wafer probe” testing can be performed on one or many die at a time, including testing the entire wafer at once. Most leading-edge microprocessors, microcontrollers, digital signal processors, memory ICs, sensors, power and optical devices (such as vertical-cavity surface-emitting lasers, or VCSELs) then undergo an extensive reliability screening and stress testing procedure known as burn-in or cycling, depending on the application. This can either be done at the wafer level, before the die are packaged, or at the package level, after the die are packaged. The burn-in process screens for early failures by operating the device at elevated voltages and temperatures, at up to 150 degrees Celsius (302 degrees Fahrenheit) or higher. Depending upon the application, the burn-in times can range anywhere from minutes to hours or even days. A typical burn-in system can process thousands of devices simultaneously. After burn-in, the devices undergo a final test process using automatic test equipment, or testers. For example, this cycling process screens silicon carbide semiconductor devices used in electric vehicle engine controller inverters and their corresponding on-board battery chargers for failure to meet current carrying, power loss and leakage specifications, as well as endurance requirements.
 
Markets
 
The Company’s semiconductor test and reliability qualification solutions address multiple test and burn-in segments including silicon carbide devices for electric vehicles, silicon photonics markets that include data center infrastructure and worldwide 5G infrastructure, 2D/3D sensor markets related to consumer electronics and automotive applications, and the data storage and memory markets.
 
 
 
 
S-3
 
 
 
 
 
Silicon Carbide
 
Silicon carbide power semiconductors have emerged as the preferred technology for battery electric vehicle power conversion in on-board and off-board electric vehicle battery chargers, and the electric power conversion and control of the electric engines. These devices reduce power loss by as much as greater than 75% over power silicon alternatives like IGBT (Insulated-Gate Bipolar Transistor) devices, which has essentially changed the entire market dynamic. With this development, the Company sees most, if not every automotive company that is working on electric vehicles, moving to silicon carbide-based powertrain and charging systems in the near future.
 
Aehr’s FOX-XP test and burn-in system allows for one of the key reliability screening tests to be completed on an entire wafer full of devices, testing all of them at one time, while also testing and monitoring every device for failures during the burn-in process to provide critical information on those devices. This is an enormously valuable capability, as it allows its customers to screen devices that would otherwise fail after they are packaged into multi-die modules where the yield impact is 10 times or even 100 times as costly. The Company’s FOX-P family of products are very cost-effective solutions for ensuring the critical quality and reliability of devices in this market, where performance and reliability can not only mean increased battery life, but also assurance against failure of a vehicle whose power semiconductor fails in the power train.
 
Silicon Photonics
 
The silicon photonics market is seeing increasing deployment of devices used in the expansion of bandwidth and infrastructure to meet the explosive growth of data center and 5G infrastructure.
 
The rapid growth of integrated optical devices in data centers and data center interconnect infrastructure, mobile devices, automotive applications, and wearable biosensor markets is driving substantially higher requirements for initial quality and long-term reliability, and they are increasing with every new product generation.
 
Silicon photonics devices are highly integrated silicon-based semiconductors that have embedded or integrated the non-silicon based laser transmitters and receivers to enable a smaller, lower cost, higher reliable alternative to traditional fiber optic transceivers currently used in data center and telecommunication infrastructure. These require a process step in manufacturing called stabilization where the devices are subjected to high temperatures and power to stabilize their output power. The Company’s solution makes it feasible to burn-in integrated silicon photonics devices while still in wafer form without adding the cost to the transceiver printed circuit board and other mechanical infrastructure of the final transceiver module, and that has both yield and significant cost savings. In the case of silicon photonics, the laser devices are bonded directly to a silicon-based device that has all the logic multiplexing and de-multiplexing, and other high-speed communication subsystems, all integrated into a silicon-based integrated circuit.
 
Mobile 2D and 3D Sensors
 
Sensors used in mobile devices such as smartphones, tablets, wearables such as watches and fitness bands, and audio devices have become pervasive. Initially, sensors on smartphones allowed basic functions we have all come to expect such as touchscreens, rotational sensors, and fingerprint sensors, but have gotten more complex with added capabilities such as 3D facial recognition and time of flight distance measurements. We will see the addition of health monitoring sensors, 3D measurement capability, and other advanced sensors in the future. As sensors become more pervasive and add critical new functionality to devices, it becomes more and more important that the data collected be accurate and reliable, which we believe will drive more and more requirements for our solutions for production test and burn-in of these sensors.
 
In addition, the rapid growth and increasing demand for reliability in automotive sensor technologies is a key market driver for the Company. These technologies include ADAS (Advanced Driver Assistance Systems) capabilities such as collision avoidance systems using laser, LIDAR (Light Detection and Ranging), and RADAR (Radio Detection and Ranging) or other sensing technologies. More and more new vehicles now include as standard capabilities collision avoidance systems that detect obstacles and monitor the vehicle’s surroundings to notify the driver of dangerous conditions and take evasive action. In addition to autonomous vehicles that require extremely high reliability of the devices in these systems, more and more vehicles around the world are embedding these systems and sensors into their everyday driving features. The Company sees the rising tide of the increasing number of embedded sensors and electrical and optical systems in vehicles as a key driver of the increasing market need for more and more reliable semiconductors. This, in turn, is increasing the need for 100% production test and burn-in of devices in order to lower the infant mortality rate and ensure that these devices and systems operate over the life of the vehicles.
 
 
 
 
 
S-4
 
 
 
 
Data Storage and Memory
 
 
The Company also sees the data storage and memory markets as critical new opportunities for its systems where these end markets and customers require devices to have extremely high levels of quality and long-term reliability.
 
Products
 
The Company manufactures and markets full wafer contact test systems, test during burn-in systems, test fixtures and related accessories.
 
All of the Company’s systems are platform-based systems with a portfolio of current, voltage, digital and thermal capabilities, allowing them to be configured with optional features to meet customer requirements. Systems can be configured for use in production applications, where capacity, throughput and price are most important, or for reliability engineering and quality assurance applications, where performance and flexibility, such as extended temperature ranges, are essential.
 
Full Wafer Contact Systems
 
The FOX-XP test and burn-in system, introduced in July 2016, is designed for devices in wafer, singulated die, and module form that require test and burn-in times typically measured in hours to days. The FOX-XP system can test and burn-in up to 18 wafers at a time. For high reliability applications, such as automotive, mobile devices, networking, telecommunications, sensors, power and solid-state devices, the FOX-XP system is a cost-effective solution for producing tested and burned-in die for use in multi-chip packages. Using Known-Good Die, or KGD, which are fully burned-in and tested die, in multi-chip/heterogeneous packages helps assure the reliability of the final product and lowers costs by increasing the yield of high-cost multi-chip packages. Wafer-level burn-in and test enables lower cost production of KGD for multi-chip modules, 3-D stacked packages and systems-in-a-package. The FOX-P platform has been extended for burn-in and test of small multi-die modules by using DiePak Carriers. The DiePak Carrier with its multi-module sockets and high wattage dissipation capabilities has a capacity of hundreds of die or modules, much higher than the capacity of a traditional burn-in system with traditional single-device sockets and heat sinks. This capability was introduced in March 2017.
 
The FOX-NP was introduced in January 2019 and is a low-cost entry-level system to provide a configuration and price point for companies to do initial production qualification and new product introduction, enabling an easier transition to the FOX-XP system for high volume production test. The FOX-NP system is 100% compatible with the FOX-XP system and is configurable with up to two slot assemblies per system compared to up to 18 slot assemblies in the FOX-XP system.
 
The FOX-CP was introduced in February 2019 and is a low-cost single-wafer compact test and reliability verification solution for logic, memory, power and photonic devices. The FOX-CP reduces test cost by functionally testing wafers during reliability screening to identify failing logic, memory, power or photonic die before the die are integrated into their final package, and is optimal for test times ranging from minutes to a few hours or where multiple touchdowns are required to test the entire wafer. The FOX-CP includes an integrated prober which is equipped with optics for automatic pattern recognition so that the wafer is aligned properly for the testing process. It complements the capabilities of the FOX-XP and FOX-NP systems, which are optimal when the test time is measured in hours or days and the full wafer can be tested in a single touchdown.
 
The FOX-1P full wafer parallel test system, introduced in October 2014, is designed for massively parallel testing of devices at wafer level. The FOX-1P system is designed to make electrical contact to and test all of the die on a wafer in a single touchdown. The FOX-1P test head and WaferPak Contactor are compatible with industry-standard 300 mm wafer probers, which provide the wafer handling and alignment automation for the FOX-1P system. The FOX-1P pattern generator is designed to functionally test industry-standard memory devices such as flash and DRAMs, and it is optimized to test memory or logic ICs that incorporate design for testability, or DFT, and built-in self-test, or BIST. The FOX-1P universal per-pin architecture is designed to provide per-pin electronics and per-device power supplies and is tailored to full-wafer functional test. The Company believes that the FOX-1P system can significantly reduce the cost of testing IC wafers. The Company’s FOX-1P system was partially funded through a development agreement with a leading semiconductor manufacturer. The Company received the first production order of this new system and shipped the first system in July 2016.
 
One of the key components of the FOX systems is the patented WaferPak Contactor. The WaferPak Contactor contains a full-wafer single-touchdown probe card which is easily removable from the system. Traditional probe cards often are only able to contact only a portion of the wafer, requiring multiple touchdowns to test the entire wafer. Traditional probe cards also require the use of a dedicated wafer prober handler for each wafer in order to press the wafer up to make contact with the probe card. The need for a wafer prober per wafer is a significant cost adder to the cost of testing a wafer, and also creates the need for significant clean room space to facility the footprint of a wafer prober per wafer. The unique design of the WaferPak as well as the FOX-XP and FOX-NP systems remove the need for a dedicated wafer prober per wafer. A single FOX-XP system with a set of WaferPak Contactors can test up to 18 wafers at a time in the same footprint as a single-wafer wafer prober and test system offered by Aehr’s competitors. The
 
 
 
 
S-5
 
 
 
 
 
 
WaferPak Contactor is intended to accommodate a wide range of contactor technologies so that the contactor technology can evolve along with the changing requirements of the customer’s wafers. The WaferPak Contactors are custom designed for each device type, each of which has a typical lifetime of two to seven years, depending on the device life cycle. Therefore, multiple sets of WaferPak Contactors could be purchased over the life of a FOX system.
 
Another key component of the FOX-XP and FOX-NP systems is the patented DiePak Carrier. The DiePak Carrier, which is easily removable from the system, contains many multi-module or die sockets with very fine-pitch probes. Traditional sockets contact only a single device, requiring multiple large numbers of sockets and burn-in boards to test a production lot of devices. The unique design accommodates a wide range of socket sizes and densities so that the DiePak Carrier technology can evolve along with the changing requirements of the customer’s devices. The DiePak Carriers are custom designed for each device type, each of which has a typical lifetime of two to seven years, depending on the device life cycle. Therefore, multiple sets of DiePak Carriers could be purchased over the life of a FOX-XP or FOX-NP system.
 
Another key component of our FOX-XP and FOX-NP and test solution is the WaferPak Aligner. The WaferPak Aligner performs alignment of the customer’s wafer to the WaferPak Contactor so that the wafer can be tested and burned-in by the FOX-XP and FOX-NP systems. The Company offers an automated aligner for high volume production applications, which can support several FOX-XP or FOX-NP systems, and a manual aligner for low volume production or engineering applications.
 
Similar to the WaferPak Aligner for WaferPak Contactors, the Company offers the DiePak Loader for DiePak Carriers. The DiePak Loader performs automatic loading of the customer’s modules to the DiePak Carrier so that the modules can be tested and burned-in by the FOX-XP and FOX-NP system. Typically, one DiePak Loader can support several FOX-XP or FOX-NP systems.
 
Net sales of full wafer contact product lines, systems, WaferPak Contactors, DiePaks Carriers and services for fiscal 2021, 2020 and 2019 were $15.0 million, $19.8 million, and $14.6 million, respectively, and accounted for approximately 90%, 89% and 69% of the Company’s net sales in fiscal 2021, 2020 and 2019, respectively.
 
Systems for Packaged Parts
 
Test during burn-in, or TDBI, systems consist of several subsystems: pattern generation and test electronics, control software, network interface and environmental chamber. The test pattern generator allows duplication of most of the functional tests performed by a traditional tester. Pin electronics at each burn-in board, or BIB, position are designed to provide accurate signals to the ICs being tested and detect whether a device is failing the test.
 
Devices being tested are placed on BIBs and loaded into environmental chambers which typically operate at temperatures from 25 degrees Celsius (77 degrees Fahrenheit) up to 150 degrees Celsius (302 degrees Fahrenheit). Using our optional chambers, our systems can produce temperatures as low as -55 degrees Celsius (-67 degrees Fahrenheit). A single BIB can hold up to several hundred ICs, and a production chamber holds up to 72 BIBs, resulting in thousands of memory or logic devices being tested in a single system.
 
The Advanced Burn-in and Test System, or ABTS, was introduced in fiscal 2008. Several updates to the ABTS system have been made since its introduction, including the ABTS-P system released in 2012. The ABTS family of products is based on a hardware and software architecture that is intended to address not only today’s devices, but also future devices for many years to come. The ABTS system can test and burn-in both high-power logic and low-power ICs. It can be configured to provide individual device temperature control for devices up to 70W or more and with up to 320 I/O channels.
 
Net sales of packaged part product lines, systems and services for fiscal 2021, 2020 and 2019 were $1.6 million, $2.5 million, and $6.4 million, respectively, and accounted for approximately 10%, 11% and 31% of the Company’s net sales in fiscal 2021, 2020 and 2019, respectively.
 
Customers
 
The Company markets and sells its products throughout the world to semiconductor manufacturers, semiconductor contract assemblers, electronics manufacturers and burn-in and test service companies.
 
Sales to the Company’s five largest customers accounted for approximately 84%, 87%, and 80% of its net sales in fiscal 2021, 2020 and 2019, respectively. During fiscal 2021, Advanced Semiconductor Engineering, Inc., ON Semiconductor Korea, Ltd., or ON Semiconductor, Intel Corporation, or Intel, and Inphi International Pte. Ltd, or Inphi, accounted for approximately 24%, 23%, 20% and 10%, respectively, of the Company’s net sales. During fiscal 2020, Intel, ON Semiconductor and STMicroelectronics, Inc., or STMicroelectronics, accounted for approximately 43%, 16% and 15%, respectively, of the Company’s net sales. During fiscal
 
 
 
 
 
S-6
 
 
 
 
 
 
2019, Intel, Texas Instruments Incorporated, or Texas Instruments, Cypress Semiconductor Corporation, or Cypress Semiconductor, and STMicroelectronics accounted for approximately 36%, 14%, 12% and 10%, respectively, of the Company’s net sales. No other customers accounted for more than 10% of the Company’s net sales for any of these periods. The Company expects that sales of its products to a limited number of customers will continue to account for a high percentage of net sales for the foreseeable future. In addition, sales to particular customers may fluctuate significantly from quarter to quarter. Such fluctuations may result in changes in utilization of the Company’s facilities and resources. The loss of or reduction or delay in orders from a significant customer or a delay in collecting or failure to collect accounts receivable from a significant customer could materially and adversely affect the Company’s business, financial condition and operating results.
 
Marketing, Sales and Customer Support
 
The Company has sales and service operations in the United States, Philippines and Taiwan, dedicated service resources in Germany, China and South Korea, and has established a network of distributors and sales representatives in certain key parts of the world. In fiscal 2020, the Company moved to a sales representative distributorship model for sales in Japan and Germany, substantially closing its subsidiary in Japan, see Note 17, “Restructuring,” of the Notes to Consolidated Financial Statements, and eliminating the direct sales staff at its Germany subsidiary. See “REVENUE RECOGNITION” in Item 7 under “Management’s Discussion and Analysis of Financial Condition and Results of Operations” for a further discussion of the Company’s relationship with distributors, and its effects on revenue recognition.
 
The Company’s customer service and support program includes system installation, system repair, applications engineering support, spare parts inventories, customer training and documentation. The Company has applications engineering and field service personnel located near and sometimes co-located at our customers and includes resources at the corporate headquarters in Fremont, California, at customer locations in Texas, at the Company’s subsidiaries in Germany and Philippines, at its branch office in Taiwan, and also through 3rd party agreements in China and South Korea. The Company’s distributors provide applications and field service support in other parts of the world. The Company customarily provides a warranty on its products. The Company offers service contracts on its systems directly and through its subsidiaries, distributors and representatives. The Company believes that maintaining a close relationship with customers and providing them with ongoing engineering support improves customer satisfaction and will provide the Company with a competitive advantage in selling its products to the Company’s customers.
 
Backlog
 
At May 31, 2021, the Company’s backlog was $1.6 million compared with $2.5 million at May 31, 2020. The Company’s backlog consists of product orders for which confirmed purchase orders have been received and which are scheduled for shipment within 12 months. Due to the possibility of customer changes in delivery schedules or cancellations and potential delays in product shipments or development projects, the Company’s backlog as of a particular date may not be indicative of net sales for any succeeding period.
 
Research and Product Development
 
The Company historically has devoted a significant portion of its financial resources to research and development programs and expects to continue to allocate significant resources to these efforts. Certain research and development expenditures related to non-recurring engineering milestones have been transferred to cost of goods sold, reducing research and development expenses. The Company’s research and development expenses during fiscal 2021, 2020 and 2019 were $3.7 million, $3.4 million and $4.2 million, respectively.
 
The Company conducts ongoing research and development to design new products and to support and enhance existing product lines. Building upon the expertise gained in the development of its existing products, the Company has developed the FOX family of systems for performing test and burn-in of entire processed wafers, and burn-in of devices in singulated die and module form, including the FOX-NP and FOX-CP systems released during fiscal 2019. The Company is developing enhancements to our packaged parts and wafer level burn-in products, intended to improve the capability and performance for testing and burn-in of future generation devices and provide the flexibility in a wide variety of applications.
 
Manufacturing
 
The Company assembles its products from components and parts manufactured by others, including environmental chambers, power supplies, metal fabrications, printed circuit assemblies, ICs, burn-in sockets, high-density interconnects, wafer contactors and interconnect substrates. The Company’s strategy is to use in-house manufacturing only when necessary to protect a proprietary process or when a significant improvement in quality, cost or lead time can be achieved and relies on subcontractors to manufacture many of the components and subassemblies used in its products. Final assembly and testing are performed at the Company’s principal manufacturing facility located in Fremont, California.
 
 
 
 
 
S-7
 
 
 
 
 
Risks Related to Our Business
 
Our ability to implement our current business strategy is subject to numerous risks, including those described in the section entitled “Risk Factors” immediately following this prospectus summary. These risks include, among others:
 
The effects of the COVID-19 pandemic have disrupted, and may continue to significantly disrupt, our operations, including our ability to manufacture and supply products and perform research and development activities, and our customers’ usage of our products, all of which have had and may continue to have a material and adverse effect on our business, future revenues and financial condition. We are unable to predict the extent to which the pandemic and related impacts will continue to adversely impact our business operations, financial performance, results of operations and the achievement of our strategic objectives.

 
We generate a large portion of our sales from a small number of customers. If we were to lose one or more of our large customers, operating results could suffer dramatically.
 
The semiconductor equipment industry is intensely competitive. In each of the markets we serve, we face competition from established competitors and potential new entrants, many of which have greater financial, engineering, manufacturing and marketing resources than us.
 
We rely on increasing market acceptance for our FOX system, and we may not be successful in attracting new customers or maintaining our existing customers.
 
A substantial portion of our net sales is generated by relatively small volume, high value transactions.

 
Our industry is subject to rapid technological change and our ability to remain competitive depends on our ability to introduce new products in a timely manner.
 
A decrease in customer device failure rates may result in a decrease in demand for our products.
 
Future changes in semiconductor technologies may make our products obsolete.
 
Corporate Information
 
We filed our certificate of incorporation with the Secretary of State of California on May 25, 1977. Our principal executive offices are located at 400 Kato Terrace, Fremont, California 94539 and our telephone number is (510) 623-9400. Our website address is www.aehr.com. The information on, or that can be accessed through, our website is not part of this prospectus. We have included our website address as an inactive textual reference only.
 
AEHR, Aehr Test and the AEHR Test Systems logo are our trademarks. Each of the other trademarks, trade names, or service marks appearing in this prospectus belongs to its respective holder.
 
 
  
 
S-8
 
 
 
  THE OFFERING
 
 
   
 
 
Common stock offered by us
Shares of our common stock having an aggregate offering price of up to $25,000,000.
 
 
   
   
 
 
Common stock to be outstanding after this offering
Up to 27,045,281 shares (as more fully described in the notes following this table), assuming sales of 3,320,053 shares of our common stock in this offering at an offering price of $7.53 per share, which was the last reported sale price of our common stock on the Nasdaq Capital Market on September 2, 2021. The actual number of shares issued will vary depending on the sales price under this offering.
 
 
   
 
 
 
Manner of offering  
“At-the-market” offering that may be made from time to time through our sales agent, Craig-Hallum. See “Plan of Distribution” on page S-14.
 
 

   
 
 
Use of Proceeds    
We intend to use the net proceeds from this offering, if any, for general corporate purposes, which may include, among other things, increasing our working capital and funding research and development, commercial activities, and capital expenditures. See “Use of Proceeds” on page S-12.
 
 

   
 
 
Risk Factors       
You should read the “Risk Factors” section of this prospectus and in the documents incorporated by reference in this prospectus for a discussion of factors to consider before deciding to purchase shares of our common stock.  
 
 

   
 
 
Symbol on the Nasdaq Capital Market         
“AEHR”  
 
 
 
 
The number of shares of common stock shown above to be outstanding after this offering is based on 23,725,228 shares outstanding as of May 31, 2021, and excludes, in each case as of May 31, 2021:
 
2,766,186 shares of common stock issuable upon the exercise of outstanding stock options having a weighted-average exercise price of $2.16 per share;
 
132,076 shares of common stock issuable upon vesting of outstanding restricted stock units;
 
1,137,426 shares of common stock reserved for issuance pursuant to future awards under our 2016 Equity Incentive Plan, as well as any automatic increases in the number of shares of our common stock reserved for future issuance under this plan; and
 
436,035 shares of common stock reserved for future issuance under our Amended and Restated 2006 Emplyee Stock Purchase Plan, as well as any automatic increases in the number of shares of our common stock reserved for future issuance under this plan.
 
Unless otherwise stated, all information contained in this prospectus reflects an assumed public offering price of $7.53 per share, which was the last reported sale price of our common stock on the Nasdaq Capital Market on September 2, 2021.
 
 

 
S-9
 
 
RISK FACTORS
 
You should consider carefully the risks described below and discussed under the section captioned “Risk Factors” contained in our annual report on Form 10-K for the year ended May 31, 2021 and in our quarterly reports for the quarterly periods ended February 28, 2021, November 30, 2020 and August 31, 2021, as updated by our subsequent filings under the Securities Exchange Act of 1934, as amended, or the Exchange Act, each of which is incorporated by reference in this prospectus in their entirety, together with other information in this prospectus, and the information and documents incorporated by reference in this prospectus, and any free writing prospectus that we have authorized for use in connection with this offering before you make a decision to invest in our common stock. If any of the following events actually occur, our business, operating results, prospects or financial condition could be materially and adversely affected. This could cause the trading price of our common stock to decline and you may lose all or part of your investment. The risks described below are not the only ones that we face. Additional risks not presently known to us or that we currently deem immaterial may also affect our business operations.
 
Risks Relating to this Offering
 
Our management team may invest or spend the proceeds of this offering in ways with which you may not agree or in ways which may not yield a significant return.
 
Our management will have broad discretion over the use of proceeds from this offering. The net proceeds from this offering will be used for general corporate purposes, which may include, among other things, increasing our working capital and funding research and development, commercial activities, and capital expenditures. Our management will have considerable discretion in the application of the net proceeds, and you will not have the opportunity, as part of your investment decision, to assess whether the proceeds are being used appropriately. The net proceeds may be used for corporate purposes that do not increase our operating results or enhance the value of our common stock.
 
You may experience immediate and substantial dilution in the net tangible book value per share of the common stock you purchase.
 
The price per share of our common stock being offered may be higher than the net tangible book value per share of our common stock outstanding prior to this offering. Assuming that an aggregate of 3,320,053 shares are sold at a price of $7.53 per share, the last reported sale price of our common stock on the Nasdaq Capital Market on September 2, 2021, for aggregate proceeds of $25,000,000 in this offering, and after deducting commissions and estimated aggregate offering expenses payable by us, you will suffer immediate and substantial dilution of $6.27 per share, representing the difference between the as adjusted net tangible book value per share of our common stock as of May 31, 2021 after giving effect to this offering and the assumed offering price. See the section entitled “Dilution” below for a more detailed discussion of the dilution you will incur if you purchase common stock in this offering.
 
You may experience future dilution as a result of future equity offerings.
 
In order to raise additional capital, we may in the future offer additional shares of our common stock or other securities convertible into or exchangeable for our common stock. We cannot assure you that we will be able to sell shares or other securities in any other offering at a price per share that is equal to or greater than the price per share paid by investors in this offering, and investors purchasing shares or other securities in the future could have rights superior to existing stockholders. The price per share at which we sell additional shares of our common stock or other securities convertible into or exchangeable for our common stock in future transactions may be higher or lower than the price per share in this offering. As of May 31, 2021, approximately 1,915,287 shares of common stock that are either subject to outstanding options, issuable upon vesting of outstanding restricted stock units, reserved for future issuance under our equity incentive plans or subject to outstanding warrants are eligible for sale in the public market to the extent permitted by the provisions of various vesting schedules and Rule 144 and Rule 701 under the Securities Act.
 
 
S-10
 
 
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
This prospectus contains forward-looking statements that involve risks and uncertainties. All statements other than statements of historical facts contained in this prospectus are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as “may,” “could,” “will,” “would,” “should,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “intend,” “predict,” “seek,” “contemplate,” “potential” or “continue” or the negative of these terms or other comparable terminology. These forward-looking statements include, but are not limited to, statements about:
 
our future research and development programs;
 
the implementation of our business model, strategic plans for our business, product candidates and technology;
 
the scope of protection we are able to establish and maintain for intellectual property rights covering our product candidates and technology;
 
estimates of our expenses, future revenues, capital requirements and our needs for additional financing;
 
our use of proceeds from this offering;
 
our financial performance; and
 
developments relating to our competitors and our industry.
 
Any forward-looking statements in this prospectus reflect our current views with respect to future events or to our future financial performance and involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by these forward-looking statements. Factors that may cause actual results to differ materially from current expectations include, among other things, those listed under “Risk Factors” and elsewhere in this prospectus. Given these risks and uncertainties, you should not place undue reliance on these forward-looking statements. Except as required by law, we assume no obligation to update or revise these forward-looking statements for any reason, even if new information becomes available in the future.
 
 
S-11
 
 
USE OF PROCEEDS
 
The amount of proceeds from this offering will depend upon the number of shares of our common stock sold and the market price at which they are sold. There can be no assurance that we will be able to sell any shares under or fully utilize the sales agreement with Craig-Hallum as a source of financing. We intend to use the net proceeds, if any, from this offering for general corporate purposes, which may include, among other things, increasing our working capital and funding research and development, commercial activities and capital expenditures.
 
The amounts and timing of our actual expenditures will depend on numerous factors as well as the amount of cash used in our operations. We therefore cannot estimate with certainty the amount of net proceeds to be used for the purposes described above. We may find it necessary or advisable to use the net proceeds for other purposes, and we will have broad discretion in the application of the net proceeds. Pending the uses described above, we plan to invest the net proceeds from this offering in short-term, investment-grade, interest-bearing securities.
 
 
 
S-12
 
 
DILUTION
 
Our net tangible book value as of May 31, 2021 was approximately $9,843,000, or $0.41 per share. Net tangible book value per share is determined by dividing our total tangible assets, less total liabilities, by the number of shares of our common stock outstanding as of May 31, 2021. Dilution in net tangible book value per share represents the difference between the amount per share paid by purchasers of shares of common stock in this offering and the as adjusted net tangible book value per share of our common stock immediately after giving effect to this offering.
 
After giving effect to the sale of our common stock in the aggregate amount of $25.0 million in this offering at an assumed offering price of $7.53, the last reported sale price of our common stock on the Nasdaq Capital Market on September 2, 2021, and after deducting commissions and estimated aggregate offering expenses payable by us, our as adjusted net tangible book value as of May 31, 2021 would have been approximately $34,073,067, or $1.26 per share. This represents an immediate increase in net tangible book value of $0.84 per share to existing stockholders and immediate dilution in net tangible book value of $6.27 per share to new investors purchasing our common stock in this offering. The following table illustrates this dilution on a per share basis:
 
Assumed public offering price per share
 
 
 
 $7.53 
Net tangible book value per share as of May 31, 2021
 $0.41 
    
Increase per share attributable to new investors
  0.84 
    
 
    
    
As adjusted net tangible book value per share after this offering
    
  1.26 
Dilution per share to new investors
    
  6.27 
 
The shares sold in this offering, if any, will be sold from time to time at various prices. An increase of $1.00 per share in the price at which the shares are sold from the assumed offering price of $7.53 per share shown in the table above, assuming all of our common stock in the aggregate amount of $25.0 million is sold at that price, would increase our as adjusted net tangible book value per share after the offering to $1.28 per share and would increase the dilution in net tangible book value per share to new investors to $7.25 per share, after deducting commissions and estimated aggregate offering expenses payable by us. A decrease of $1.00 per share in the price at which the shares are sold from the assumed offering price of $7.53 per share shown in the table above, assuming all of our common stock in the aggregate amount of $25.0 million is sold at that price, would increase our as adjusted net tangible book value per share after the offering to $1.24 per share and would decrease the dilution in net tangible book value per share to new investors to $5.29 per share, after deducting commissions and estimated aggregate offering expenses payable by us. This information is supplied for illustrative purposes only.
 
To the extent that outstanding options or warrants are exercised or outstanding restricted stock units vest, investors purchasing our common stock in this offering will experience further dilution. In addition, we may choose to raise additional capital due to market conditions or strategic considerations even if we believe we have sufficient funds for our current or future operating plans. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the issuance of these securities could result in further dilution to our stockholders.
 
The above discussion and table are based on 23,725,228 shares of common stock outstanding as of May 31, 2021, and exclude as of that date:
 
2,766,186 shares of common stock issuable upon the exercise of outstanding stock options having a weighted-average exercise price of $2.16 per share;
 
132,076 shares of common stock issuable upon vesting of outstanding restricted stock units;
 
1,137,426 shares of common stock reserved for issuance pursuant to future awards under our 2016 Equity Incentive Plan, as well as any automatic increases in the number of shares of our common stock reserved for future issuance under this plan; and
 
436,035 shares of common stock reserved for future issuance under our Amended and Restated 2006 Emplyee Stock Purchase Plan, as well as any automatic increases in the number of shares of our common stock reserved for future issuance under this plan.
 
 
S-13
 
 
PLAN OF DISTRIBUTION
 
We have entered into an Equity Distribution Agreement, or sales agreement with Craig-Hallum under which we may issue and sell shares of our common stock having an aggregate gross sales price of up to $25,000,000 from time to time through Craig-Hallum acting as agent. The sales agreement has been filed as an exhibit to our registration statement on Form S-3 of which this prospectus forms a part.
 
Upon delivery of a placement notice and subject to the terms and conditions of the sales agreement, Craig-Hallum may sell our common stock by any method permitted by law deemed to be an “at-the-market” offering as defined in Rule 415 promulgated under the Securities Act, including sales made directly on the Nasdaq Capital Market, on any other existing trading market for our common stock or to or through a market maker. Craig-Hallum may also sell our common stock by any other method permitted by law, including in privately negotiated transactions. We may instruct Craig-Hallum not to sell common stock if the sales cannot be effected at or above the price designated by us from time to time. We or Craig-Hallum may suspend the offering of common stock upon notice and subject to other conditions.
 
We will pay Craig-Hallum commissions, in cash, for its services in acting as agent in the sale of our common stock. Craig-Hallum will be entitled to compensation at a commission rate of up to 3.0% of the gross sales price per share sold. Because there is no minimum offering amount required as a condition to close this offering, the actual total public offering amount, commissions and proceeds to us, if any, are not determinable at this time. We have also agreed to reimburse Craig-Hallum for certain specified expenses, including the fees and disbursements of its legal counsel, in an amount not to exceed $45,000 plus $5,000 quarterly for ongoing diligence requirements, including ongoing legal fees, following the execution date and during the term of the sales agreement. We estimate that the total expenses for the offering, excluding discounts and commissions payable to Craig-Hallum under the terms of the sales agreement, will be approximately $19,933.
 
Settlement for sales of common stock will occur on the third business day following the date on which any sales are made, or on some other date that is agreed upon by us and Craig-Hallum in connection with a particular transaction, in return for payment of the net proceeds to us. Sales of our common stock as contemplated in this prospectus will be settled through the facilities of The Depository Trust Company or by such other means as we and Craig-Hallum may agree upon. There is no arrangement for funds to be received in an escrow, trust or similar arrangement.
 
Craig-Hallum will use its commercially reasonable efforts, consistent with its sales and trading practices, to solicit offers to purchase the common stock shares under the terms and subject to the conditions set forth in the sales agreement. In connection with the sale of the common stock on our behalf, Craig-Hallum will be deemed to be an “underwriter” within the meaning of the Securities Act and the compensation of Craig-Hallum will be deemed to be underwriting commissions or discounts. We have agreed to provide indemnification and contribution to Craig-Hallum against certain civil liabilities, including liabilities under the Securities Act.
 
The offering of our common stock pursuant to the sales agreement will terminate upon the earlier of (1) the sale of all shares of our common stock subject to the sales agreement, or (2) termination of the sales agreement as permitted therein. We and Craig-Hallum may each terminate the sales agreement at any time upon ten days’ prior notice.
 
Any portion of the $25,000,000 included in this sales agreement prospectus that is not previously sold or included in an active placement notice pursuant to the sales agreement is available for sale in other offerings pursuant to the base prospectus, and if no shares are sold under the sales agreement, the full $75,000,000 of securities may be sold in other offerings pursuant to the base prospectus and a corresponding prospectus supplement.
 
Craig-Hallum and its affiliates may in the future provide various investment banking, commercial banking and other financial services for us and our affiliates, for which services they may in the future receive customary fees. To the extent required by Regulation M, Craig-Hallum will not engage in any market making activities involving our common stock while the offering is ongoing under this prospectus.
 
This prospectus in electronic format may be made available on a website maintained by Craig-Hallum and Craig-Hallum may distribute this prospectus electronically.
 
 
S-14
 
 
LEGAL MATTERS
 
Latham & Watkins LLP will pass upon certain legal matters relating to the issuance and sale of the securities offered hereby on behalf of AEHR Test Systems. Certain legal matters in connection with this offering will be passed upon for Craig-Hallum by Faegre Drinker Biddle & Reath LLP.
 
EXPERTS
 
The consolidated financial statements of AEHR Test Systems as of May 31, 2021 and 2020 and for each of the three years in the period ended May 31, 2021 incorporated in this prospectus by reference to the Annual Report on Form 10-K for the year ended May 31, 2021, have been so incorporated in reliance on the report of BPM LLP, an independent registered public accounting firm.
 
Such consolidated financial statements are, and audited consolidated financial statements to be included in subsequently filed documents will be, incorporated by reference in reliance upon the reports of BPM LLP relating to such consolidated financial statements to the extent covered by consents filed with the Securities and Exchange Commission, given on the authority of said firm as experts in auditing and accounting.
 
WHERE YOU CAN FIND MORE INFORMATION
 
We have filed with the SEC a registration statement on Form S-3 under the Securities Act, of which this prospectus forms a part. The rules and regulations of the SEC allow us to omit from this prospectus certain information included in the registration statement. For further information about us and the securities we are offering under this prospectus, you should refer to the registration statement and the exhibits and schedules filed with the registration statement. With respect to the statements contained in this prospectus regarding the contents of any agreement or any other document, in each instance, the statement is qualified in all respects by the complete text of the agreement or document, a copy of which has been filed as an exhibit to the registration statement.
 
We file reports, proxy statements and other information with the SEC under the Exchange Act. You may read and copy this information from the Public Reference Room of the SEC, 100 F Street, N.E., Room 1580, Washington, D.C. 20549, at prescribed rates. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains an Internet website that contains reports, proxy statements and other information about issuers, like us, that file electronically with the SEC. The address of that website is www.sec.gov.
 
INFORMATION INCORPORATED BY REFERENCE
 
The SEC allows us to “incorporate by reference” the information we file with them which means that we can disclose important information to you by referring you to those documents instead of having to repeat the information in this prospectus. The information incorporated by reference is considered to be part of this prospectus, and later information that we file with the SEC will automatically update and supersede this information. We incorporate by reference the documents listed below and any future information filed (rather than furnished) with the SEC under Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act between the date of this prospectus and the termination of this offering, provided, however, that we are not incorporating any information furnished under Item 2.02 or Item 7.01 of any current report on Form 8-K:
 
Our Annual Report on Form 10-K for the year ended May 31, 2021, filed with the SEC on August 27, 2021.
 
●    
The description of our Common Stock contained in Exhibit 4.3 to our Annual Report on Form 10-K filed with the SEC on August 27, 2021 and any amendment or report filed with the SEC for the purpose of updating the description.
 
These documents may also be accessed on our website at www.aehr.com. Except as otherwise specifically incorporated by reference in this prospectus, information contained in, or accessible through, our website is not a part of this prospectus.
 
We will furnish without charge to you, upon written or oral request, a copy of any or all of the documents incorporated by reference, including exhibits to these documents by writing or telephoning us at the following address:
 
AEHR TEST SYSTEMS
400 KATO TERRACE
FREMONT, CALIFORNIA 94539
(510) 623-9400
 
 
S-15
 
 
 
 
 
 
 
Up to $25,000,000 of Shares
Common Stock
 
 
 
 
PROSPECTUS
 
 
 
 
 
 Craig-Hallum
 
  September 17, 2021
 
 
 
 
 
 
 
 
 
PROSPECTUS
 
 
Aehr Test Systems
 
$75,000,000
 
Common Stock
Preferred Stock
Debt Securities
Depositary Shares
Warrants
Subscription Rights
Units
 
We may offer and sell up to $75,000,000 in the aggregate of the securities identified above from time to time in one or more offerings. This prospectus provides you with a general description of the securities.
 
Each time we offer and sell securities, we will file a supplement to this prospectus that contains specific information about the offering and the amounts, prices and terms of the securities. The supplement may also add, update or change information contained in this prospectus with respect to that offering. You should carefully read this prospectus and the applicable prospectus supplement before you invest in any of our securities.
 
We may offer and sell the securities described in this prospectus and any prospectus supplement to or through one or more underwriters, dealers and agents, or directly to purchasers, or through a combination of these methods. If any underwriters, dealers or agents are involved in the sale of any of the securities, their names and any applicable purchase price, fee, commission or discount arrangement between or among them will be set forth, or will be calculable from the information set forth, in the applicable prospectus supplement. See the sections of this prospectus entitled “About this Prospectus” and “Plan of Distribution” for more information. No securities may be sold without delivery of this prospectus and the applicable prospectus supplement describing the method and terms of the offering of such securities.
 
INVESTING IN OUR SECURITIES INVOLVES RISKS. SEE THE “RISK FACTORS” ON PAGE 4 OF THIS PROSPECTUS AND ANY SIMILAR SECTION CONTAINED IN THE APPLICABLE PROSPECTUS SUPPLEMENT CONCERNING FACTORS YOU SHOULD CONSIDER BEFORE INVESTING IN OUR SECURITIES.
 
Our common stock is listed on the Nasdaq Capital Market under the symbol “AEHR.” On September 2, 2021, the last reported sale price of our common stock on the Nasdaq Capital Market was $7.53 per share.
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.
 
The date of this prospectus is September 17, 2021.
 
 
 
 
 
TABLE OF CONTENTS 
 
 
 
 
 
ABOUT THIS PROSPECTUS
 
This prospectus is part of a registration statement that we filed with the U.S. Securities and Exchange Commission, or the SEC, using a “shelf” registration process. By using a shelf registration statement, we may sell securities from time to time and in one or more offerings up to a total dollar amount of $75,000,000 as described in this prospectus. Each time that we offer and sell securities, we will provide a prospectus supplement to this prospectus that contains specific information about the securities being offered and sold and the specific terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The prospectus supplement or free writing prospectus may also add, update or change information contained in this prospectus with respect to that offering. If there is any inconsistency between the information in this prospectus and the applicable prospectus supplement or free writing prospectus, you should rely on the prospectus supplement or free writing prospectus, as applicable. Before purchasing any securities, you should carefully read both this prospectus and the applicable prospectus supplement (and any applicable free writing prospectuses), together with the additional information described under the heading “Where You Can Find More Information; Incorporation by Reference.”
 
We have not authorized anyone to provide you with any information or to make any representations other than those contained in this prospectus, any applicable prospectus supplement or any free writing prospectuses prepared by or on behalf of us or to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We will not make an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus and the applicable prospectus supplement to this prospectus is accurate only as of the date on its respective cover, that the information appearing in any applicable free writing prospectus is accurate only as of the date of that free writing prospectus, and that any information incorporated by reference is accurate only as of the date of the document incorporated by reference, unless we indicate otherwise. Our business, financial condition, results of operations and prospects may have changed since those dates. This prospectus incorporates by reference, and any prospectus supplement or free writing prospectus may contain and incorporate by reference, market data and industry statistics and forecasts that are based on independent industry publications and other publicly available information. Although we believe these sources are reliable, we do not guarantee the accuracy or completeness of this information and we have not independently verified this information. In addition, the market and industry data and forecasts that may be included or incorporated by reference in this prospectus, any prospectus supplement or any applicable free writing prospectus may involve estimates, assumptions and other risks and uncertainties and are subject to change based on various factors, including those discussed under the heading “Risk Factors” contained in this prospectus, the applicable prospectus supplement and any applicable free writing prospectus, and under similar headings in other documents that are incorporated by reference into this prospectus. Accordingly, investors should not place undue reliance on this information.
 
When we refer to “AEHR,” “Aehr Test,” “we,” “our,” “us” and the “Company” in this prospectus, we mean Aehr Test Systems and its consolidated subsidiaries, unless otherwise specified. When we refer to “you,” we mean the potential holders of the applicable series of securities.
 
Aehr Test Systems™, AEHR™ and our logo are some of our trademarks used in this prospectus. This prospectus also includes trademarks, tradenames and service marks that are the property of other organizations. Solely for convenience, our trademarks and tradenames referred to in this prospectus appear without the ® or ™ symbols, but those references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights, or the right of the applicable licensor to these trademarks and tradenames.
 
 
1
 
 
WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE
 
Available Information
 
We file reports, proxy statements and other information with the SEC. The SEC maintains a web site that contains reports, proxy and information statements and other information about issuers, such as us, who file electronically with the SEC. The address of that website is http://www.sec.gov.
 
Our web site address is www.aehr.com. The information on our web site, however, is not, and should not be deemed to be, a part of this prospectus.
 
This prospectus and any prospectus supplement are part of a registration statement that we filed with the SEC and do not contain all of the information in the registration statement. The full registration statement may be obtained from the SEC or us, as provided below. Forms of the indenture and other documents establishing the terms of the offered securities are or may be filed as exhibits to the registration statement or documents incorporated by reference in the registration statement. Statements in this prospectus or any prospectus supplement about these documents are summaries and each statement is qualified in all respects by reference to the document to which it refers. You should refer to the actual documents for a more complete description of the relevant matters. You may inspect a copy of the registration statement through the SEC’s website, as provided above.
 
Incorporation by Reference
 
The SEC’s rules allow us to “incorporate by reference” information into this prospectus, which means that we can disclose important information to you by referring you to another document filed separately with the SEC. The information incorporated by reference is deemed to be part of this prospectus, and subsequent information that we file with the SEC will automatically update and supersede that information. Any statement contained in this prospectus or a previously filed document incorporated by reference will be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or a subsequently filed document incorporated by reference modifies or replaces that statement.
 
This prospectus and any accompanying prospectus supplement incorporate by reference the documents set forth below that have previously been filed with the SEC:
 
Our Annual Report on Form 10-K for the year ended May 31, 2021, filed with the SEC on August 27, 2021.
 
The description of our Common Stock contained in Exhibit 4.3 to our Annual Report on Form 10-K filed with the SEC on August 27, 2021 and any amendment or report filed with the SEC for the purpose of updating the description.
 
All reports and other documents we subsequently file pursuant to Section 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended, which we refer to as the “Exchange Act” in this prospectus, prior to the termination of this offering, including all such documents we may file with the SEC after the date of the initial registration statement and prior to the effectiveness of the registration statement, but excluding any information furnished to, rather than filed with, the SEC, will also be incorporated by reference into this prospectus and deemed to be part of this prospectus from the date of the filing of such reports and documents.
 
You may request a free copy of any of the documents incorporated by reference in this prospectus by writing or telephoning us at the following address:
 
AEHR TEST SYSTEMS
400 KATO TERRACE
FREMONT, CALIFORNIA 94539
(510) 623-9400
 
Exhibits to the filings will not be sent, however, unless those exhibits have specifically been incorporated by reference in this prospectus or any accompanying prospectus supplement.
 
 
2
 
 
THE COMPANY
 
Aehr Test Systems develops and manufactures burn-in and test equipment for the semiconductor industry.
 
We filed our certificate of incorporation with the Secretary of State of California on May 25, 1977. Our principal executive offices are located at 400 Kato Terrace, Fremont, California 94539 and our telephone number is (510) 623-9400. Our website address is www.aehr.com. The information on, or that can be accessed through, our website is not part of this prospectus. We have included our website address as an inactive textual reference only.
 
 
 
3
 
 
RISK FACTORS
 
Investment in any securities offered pursuant to this prospectus and the applicable prospectus supplement involves risks. You should carefully consider the risk factors incorporated by reference to our most recent Annual Report on Form 10-K and any subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K, and all other information contained or incorporated by reference into this prospectus, as updated by our subsequent filings under the Exchange Act, and the risk factors and other information contained in the applicable prospectus supplement and any applicable free writing prospectus before acquiring any of such securities. The occurrence of any of these risks might cause you to lose all or part of your investment in the offered securities.
 
 
 
4
 
 
USE OF PROCEEDS
 
We intend to use the net proceeds from the sale of the securities as set forth in the applicable prospectus supplement.
 
 
 
5
 
 
DESCRIPTION OF CAPITAL STOCK
 
The following description of our capital stock is not complete and may not contain all the information you should consider before investing in our capital stock. This description is summarized from, and qualified in its entirety by reference to, our restated articles of incorporation, which have been publicly filed with the SEC, and to the applicable provisions of California law. See “Where You Can Find More Information; Incorporation by Reference.”
 
Our authorized capital stock consists of:
 
75,000,000 shares of common stock, $0.01 par value; and
 
10,000,000 shares of preferred stock, $0.01 par value.
 
Common Stock
 
Outstanding Shares
 
As of May 31, 2021, there were 23,725,228 shares of common stock outstanding, held of record by 122 stockholders. Our board of directors is authorized, without stockholder approval, to issue additional shares of our capital stock.
 
Dividend Rights
 
Subject to preferences that may be applicable to any then outstanding convertible preferred stock, holders of our common stock are entitled to receive dividends, if any, as may be declared from time to time by our board of directors out of legally available funds. We have never declared or paid cash dividends on any of our capital stock and currently do not anticipate paying any cash dividends after this offering or in the foreseeable future.
 
Voting Rights
 
There are 75,000,000 shares of common stock authorized for issuance. Each holder of our common stock is entitled to one vote for each share on all matters submitted to a vote of stockholders. Pursuant to our restated articles of incorporation and amended and restated bylaws, corporate actions can generally be taken by a majority of our board and/or stockholders holding a majority of our outstanding shares. Additionally, our stockholders have cumulative voting rights in the election of directors.
 
Right to Receive Liquidation Distributions
 
In the event of our liquidation, dissolution or winding up, holders of our common stock are entitled to share ratably in the net assets legally available for distribution to stockholders after the payment of all of our debts and other liabilities and the satisfaction of any liquidation preference granted to the holders of any then outstanding shares of preferred stock.
 
Rights and Preferences
 
Holders of our common stock have no preemptive, conversion, subscription or other rights, and there are no redemption or sinking fund provisions applicable to our common stock. The rights, preferences and privileges of the holders of our common stock are subject to, and may be adversely affected by, the rights of the holders of shares of any series of our preferred stock that we may designate in the future.
 
Fully Paid and Nonassessable
 
All of our outstanding shares of common stock are, and the shares of common stock to be issued pursuant to this offering, when paid for, will be fully paid and nonassessable.
 
 
 
6
 
 
 
Transfer Agent
 
The transfer agent and registrar for our common stock is Computershare Trust Company, N.A. Our shares of common stock are issued in uncertificated form only, subject to limited circumstances.
 
Preferred Stock
 
Our board of directors has the authority, without further action by our stockholders, to issue up to 10,000,000 shares of preferred stock in one or more series and to fix the rights, preferences, privileges and restrictions thereof. These rights, preferences and privileges could include dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms and the number of shares constituting any series or the designation of such series, any or all of which may be greater than the rights of common stock. The issuance of preferred stock by us could adversely affect the voting power of holders of common stock and the likelihood that such holders will receive dividend payments and payments upon liquidation. In addition, the issuance of preferred stock could have the effect of delaying, deferring or preventing a change of control of our company or other corporate action. No shares of preferred stock are outstanding, and we have no present plan to issue any shares of preferred stock.
 
Stock Options
 
As of May 31, 2021 there were 2,766,186 shares of our common stock issuable upon exercise of outstanding stock options, at a weighted-average exercise prices of $2.16 per share.
 
Restricted Stock Options
 
As of May 31, 2021, there were 132,076 shares of our common stock issuable upon vesting of outstanding restricted stock units.
 
 
 
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DESCRIPTION OF DEBT SECURITIES
 
The following description, together with the additional information we include in any applicable prospectus supplement or free writing prospectus, summarizes certain general terms and provisions of the debt securities that we may offer under this prospectus. When we offer to sell a particular series of debt securities, we will describe the specific terms of the series in a supplement to this prospectus. We will also indicate in the supplement to what extent the general terms and provisions described in this prospectus apply to a particular series of debt securities.
 
We may issue debt securities either separately, or together with, or upon the conversion or exercise of or in exchange for, other securities described in this prospectus. Debt securities may be our senior, senior subordinated or subordinated obligations and, unless otherwise specified in a supplement to this prospectus, the debt securities will be our direct, unsecured obligations and may be issued in one or more series.
 
The debt securities will be issued under an indenture between us and a trustee. We have summarized select portions of the indenture below. The summary is not complete. The form of the indenture has been filed as an exhibit to the registration statement and you should read the indenture for provisions that may be important to you. In the summary below, we have included references to the section numbers of the indenture so that you can easily locate these provisions. Capitalized terms used in the summary and not defined herein have the meanings specified in the indenture.
 
As used in this section only, “AEHR,” “Aehr Test,” “we,” “our” or “us” refer to AEHR Test Systems, excluding our subsidiaries, unless expressly stated or the context otherwise requires.
 
General
 
The terms of each series of debt securities will be established by or pursuant to a resolution of our board of directors and set forth or determined in the manner provided in a resolution of our board of directors, in an officer’s certificate or by a supplemental indenture. (Section 2.2) The particular terms of each series of debt securities will be described in a prospectus supplement relating to such series (including any pricing supplement or term sheet).
 
We can issue an unlimited amount of debt securities under the indenture that may be in one or more series with the same or various maturities, at par, at a premium, or at a discount. (Section 2.1) We will set forth in a prospectus supplement (including any pricing supplement or term sheet) relating to any series of debt securities being offered, the aggregate principal amount and the following terms of the debt securities, if applicable:
 
the title and ranking of the debt securities (including the terms of any subordination provisions);
 
the price or prices (expressed as a percentage of the principal amount) at which we will sell the debt securities;
 
any limit on the aggregate principal amount of the debt securities;
 
the date or dates on which the principal of the securities of the series is payable;
 
the rate or rates (which may be fixed or variable) per annum or the method used to determine the rate or rates (including any commodity, commodity index, stock exchange index or financial index) at which the debt securities will bear interest, the date or dates from which interest will accrue, the date or dates on which interest will commence and be payable and any regular record date for the interest payable on any interest payment date;
 
the place or places where principal of, and interest, if any, on the debt securities will be payable (and the method of such payment), where the securities of such series may be surrendered for registration of transfer or exchange, and where notices and demands to us in respect of the debt securities may be delivered;
 
the period or periods within which, the price or prices at which and the terms and conditions upon which we may redeem the debt securities;
 
any obligation we have to redeem or purchase the debt securities pursuant to any sinking fund or analogous provisions or at the option of a holder of debt securities and the period or periods within which, the price or prices at which and in the terms
 
 
 
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and conditions upon which securities of the series shall be redeemed or purchased, in whole or in part, pursuant to such obligation;
 
the dates on which and the price or prices at which we will repurchase debt securities at the option of the holders of debt securities and other detailed terms and provisions of these repurchase obligations;
 
the denominations in which the debt securities will be issued, if other than denominations of $1,000 and any integral multiple thereof;
 
whether the debt securities will be issued in the form of certificated debt securities or global debt securities;
 
the portion of principal amount of the debt securities payable upon declaration of acceleration of the maturity date, if other than the principal amount;
 
the currency of denomination of the debt securities, which may be United States Dollars or any foreign currency, and if such currency of denomination is a composite currency, the agency or organization, if any, responsible for overseeing such composite currency;
 
the designation of the currency, currencies or currency units in which payment of principal of, premium and interest on the debt securities will be made;
 
if payments of principal of, premium or interest on the debt securities will be made in one or more currencies or currency units other than that or those in which the debt securities are denominated, the manner in which the exchange rate with respect to these payments will be determined;
 
the manner in which the amounts of payment of principal of, premium, if any, or interest on the debt securities will be determined, if these amounts may be determined by reference to an index based on a currency or currencies or by reference to a commodity, commodity index, stock exchange index or financial index;
 
any provisions relating to any security provided for the debt securities;
 
any addition to, deletion of or change in the Events of Default described in this prospectus or in the indenture with respect to the debt securities and any change in the acceleration provisions described in this prospectus or in the indenture with respect to the debt securities;
 
any addition to, deletion of or change in the covenants described in this prospectus or in the indenture with respect to the debt securities;
 
any depositaries, interest rate calculation agents, exchange rate calculation agents or other agents with respect to the debt securities;
 
the provisions, if any, relating to conversion or exchange of any debt securities of such series, including if applicable, the conversion or exchange price and period, provisions as to whether conversion or exchange will be mandatory, the events requiring an adjustment of the conversion or exchange price and provisions affecting conversion or exchange;
 
any other terms of the debt securities, which may supplement, modify or delete any provision of the indenture as it applies to that series, including any terms that may be required under applicable law or regulations or advisable in connection with the marketing of the securities; and
 
whether any of our direct or indirect subsidiaries will guarantee the debt securities of that series, including the terms of subordination, if any, of such guarantees. (Section 2.2)
 
We may issue debt securities that provide for an amount less than their stated principal amount to be due and payable upon declaration of acceleration of their maturity pursuant to the terms of the indenture. We will provide you with information on the federal
 
 
 
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income tax considerations and other special considerations applicable to any of these debt securities in the applicable prospectus supplement.
 
If we denominate the purchase price of any of the debt securities in a foreign currency or currencies or a foreign currency unit or units, or if the principal of and any premium and interest on any series of debt securities is payable in a foreign currency or currencies or a foreign currency unit or units, we will provide you with information on the restrictions, elections, general tax considerations, specific terms and other information with respect to that issue of debt securities and such foreign currency or currencies or foreign currency unit or units in the applicable prospectus supplement.
 
Transfer and Exchange
 
Each debt security will be represented by either one or more global securities registered in the name of The Depository Trust Company, or the Depositary, or a nominee of the Depositary (we will refer to any debt security represented by a global debt security as a “book-entry debt security”), or a certificate issued in definitive registered form (we will refer to any debt security represented by a certificated security as a “certificated debt security”) as set forth in the applicable prospectus supplement. Except as set forth under the heading “Global Debt Securities and Book-Entry System” below, book-entry debt securities will not be issuable in certificated form.
 
Certificated Debt Securities. You may transfer or exchange certificated debt securities at any office we maintain for this purpose in accordance with the terms of the indenture. (Section 2.4) No service charge will be made for any transfer or exchange of certificated debt securities, but we may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection with a transfer or exchange. (Section 2.7)
 
You may effect the transfer of certificated debt securities and the right to receive the principal of, premium and interest on certificated debt securities only by surrendering the certificate representing those certificated debt securities and either reissuance by us or the trustee of the certificate to the new holder or the issuance by us or the trustee of a new certificate to the new holder.
 
Global Debt Securities and Book-Entry System. Each global debt security representing book-entry debt securities will be deposited with, or on behalf of, the Depositary, and registered in the name of the Depositary or a nominee of the Depositary. Please see “Global Securities.”
 
Covenants
 
We will set forth in the applicable prospectus supplement any restrictive covenants applicable to any issue of debt securities. (Article IV)
 
No Protection in the Event of a Change of Control
 
Unless we state otherwise in the applicable prospectus supplement, the debt securities will not contain any provisions which may afford holders of the debt securities protection in the event we have a change in control or in the event of a highly leveraged transaction (whether or not such transaction results in a change in control) which could adversely affect holders of debt securities.
 
Consolidation, Merger and Sale of Assets
 
We may not consolidate with or merge with or into, or convey, transfer or lease all or substantially all of our properties and assets to any person (a “successor person”) unless:
 
we are the surviving entity or the successor person (if other than AEHR) is a corporation, partnership, trust or other entity organized and validly existing under the laws and expressly assumes our obligations on the debt securities and under the indenture; and
 
immediately after giving effect to the transaction, no Default or Event of Default, shall have occurred and be continuing.
 
Notwithstanding the above, any of our subsidiaries may consolidate with, merge into or transfer all or part of its properties to us. (Section 5.1)
 
 
 
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Events of Default
 
“Event of Default” means with respect to any series of debt securities, any of the following:
 
default in the payment of any interest upon any debt security of that series when it becomes due and payable, and continuance of such default for a period of 30 days (unless the entire amount of the payment is deposited by us with the trustee or with a paying agent prior to the expiration of the 30-day period);
 
default in the payment of principal of any security of that series at its maturity;
 
default in the performance or breach of any other covenant or warranty by us in the indenture (other than a covenant or warranty that has been included in the indenture solely for the benefit of a series of debt securities other than that series), which default continues uncured for a period of 60 days after we receive written notice from the trustee or AEHR and the trustee receive written notice from the holders of not less than 25% in principal amount of the outstanding debt securities of that series as provided in the indenture;
 
certain voluntary or involuntary events of bankruptcy, insolvency or reorganization of AEHR;
 
any other Event of Default provided with respect to debt securities of that series that is described in the applicable prospectus supplement. (Section 6.1)
 
No Event of Default with respect to a particular series of debt securities (except as to certain events of bankruptcy, insolvency or reorganization) necessarily constitutes an Event of Default with respect to any other series of debt securities. (Section 6.1) The occurrence of certain Events of Default or an acceleration under the indenture may constitute an event of default under certain indebtedness of ours or our subsidiaries outstanding from time to time.
 
We will provide the trustee written notice of any Default or Event of Default within 30 days of becoming aware of the occurrence of such Default or Event of Default, which notice will describe in reasonable detail the status of such Default or Event of Default and what action we are taking or propose to take in respect thereof. (Section 6.1)
 
If an Event of Default with respect to debt securities of any series at the time outstanding occurs and is continuing, then the trustee or the holders of not less than 25% in principal amount of the outstanding debt securities of that series may, by a notice in writing to us (and to the trustee if given by the holders), declare to be due and payable immediately the principal of (or, if the debt securities of that series are discount securities, that portion of the principal amount as may be specified in the terms of that series) and accrued and unpaid interest, if any, on all debt securities of that series. In the case of an Event of Default resulting from certain events of bankruptcy, insolvency or reorganization, the principal (or such specified amount) of and accrued and unpaid interest, if any, on all outstanding debt securities will become and be immediately due and payable without any declaration or other act on the part of the trustee or any holder of outstanding debt securities. At any time after a declaration of acceleration with respect to debt securities of any series has been made, but before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of a majority in principal amount of the outstanding debt securities of that series may rescind and annul the acceleration if all Events of Default, other than the non-payment of accelerated principal and interest, if any, with respect to debt securities of that series, have been cured or waived as provided in the indenture. (Section 6.2) We refer you to the prospectus supplement relating to any series of debt securities that are discount securities for the particular provisions relating to acceleration of a portion of the principal amount of such discount securities upon the occurrence of an Event of Default.
 
The indenture provides that the trustee may refuse to perform any duty or exercise any of its rights or powers under the indenture unless the trustee receives indemnity satisfactory to it against any cost, liability or expense which might be incurred by it in performing such duty or exercising such right or power. (Section 7.1(e)) Subject to certain rights of the trustee, the holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or power conferred on the trustee with respect to the debt securities of that series. (Section 6.12)
 
No holder of any debt security of any series will have any right to institute any proceeding, judicial or otherwise, with respect to the indenture or for the appointment of a receiver or trustee, or for any remedy under the indenture, unless:
 
that holder has previously given to the trustee written notice of a continuing Event of Default with respect to debt securities of that series; and
 
 
 
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the holders of not less than 25% in principal amount of the outstanding debt securities of that series have made written request, and offered indemnity or security satisfactory to the trustee, to the trustee to institute the proceeding as trustee, and the trustee has not received from the holders of not less than a majority in principal amount of the outstanding debt securities of that series a direction inconsistent with that request and has failed to institute the proceeding within 60 days. (Section 6.7)
 
Notwithstanding any other provision in the indenture, the holder of any debt security will have an absolute and unconditional right to receive payment of the principal of, premium and any interest on that debt security on or after the due dates expressed in that debt security and to institute suit for the enforcement of payment. (Section 6.8)
 
The indenture requires us, within 120 days after the end of our fiscal year, to furnish to the trustee a statement as to compliance with the indenture. (Section 4.3) If a Default or Event of Default occurs and is continuing with respect to the securities of any series and if it is known to a responsible officer of the trustee, the trustee shall mail to each Securityholder of the securities of that series notice of a Default or Event of Default within 90 days after it occurs or, if later, after a responsible officer of the trustee has knowledge of such Default or Event of Default. The indenture provides that the trustee may withhold notice to the holders of debt securities of any series of any Default or Event of Default (except in payment on any debt securities of that series) with respect to debt securities of that series if the trustee determines in good faith that withholding notice is in the interest of the holders of those debt securities. (Section 7.5)
 
Modification and Waiver
 
We and the trustee may modify, amend or supplement the indenture or the debt securities of any series without the consent of any holder of any debt security:
 
to cure any ambiguity, defect or inconsistency;
 
to comply with covenants in the indenture described above under the heading “Consolidation, Merger and Sale of Assets”;
 
to provide for uncertificated securities in addition to or in place of certificated securities;
 
to add guarantees with respect to debt securities of any series or secure debt securities of any series;
 
to surrender any of our rights or powers under the indenture;
 
to add covenants or events of default for the benefit of the holders of debt securities of any series;
 
to comply with the applicable procedures of the applicable depositary;
 
to make any change that does not adversely affect the rights of any holder of debt securities;
 
to provide for the issuance of and establish the form and terms and conditions of debt securities of any series as permitted by the indenture;
 
to effect the appointment of a successor trustee with respect to the debt securities of any series and to add to or change any of the provisions of the indenture to provide for or facilitate administration by more than one trustee; or
 
to comply with requirements of the SEC in order to effect or maintain the qualification of the indenture under the Trust Indenture Act. (Section 9.1)
 
We may also modify and amend the indenture with the consent of the holders of at least a majority in principal amount of the outstanding debt securities of each series affected by the modifications or amendments. We may not make any modification or amendment without the consent of the holders of each affected debt security then outstanding if that amendment will:
 
reduce the amount of debt securities whose holders must consent to an amendment, supplement or waiver;
 
reduce the rate of or extend the time for payment of interest (including default interest) on any debt security;
 
 
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reduce the principal of or premium on or change the fixed maturity of any debt security or reduce the amount of, or postpone the date fixed for, the payment of any sinking fund or analogous obligation with respect to any series of debt securities;
 
reduce the principal amount of discount securities payable upon acceleration of maturity;
 
waive a default in the payment of the principal of, premium or interest on any debt security (except a rescission of acceleration of the debt securities of any series by the holders of at least a majority in aggregate principal amount of the then outstanding debt securities of that series and a waiver of the payment default that resulted from such acceleration);
 
make the principal of or premium or interest on any debt security payable in currency other than that stated in the debt security;
 
make any change to certain provisions of the indenture relating to, among other things, the right of holders of debt securities to receive payment of the principal of, premium and interest on those debt securities and to institute suit for the enforcement of any such payment and to waivers or amendments; or
 
waive a redemption payment with respect to any debt security. (Section 9.3)
 
Except for certain specified provisions, the holders of at least a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all debt securities of that series waive our compliance with provisions of the indenture. (Section 9.2) The holders of a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all the debt securities of such series waive any past default under the indenture with respect to that series and its consequences, except a default in the payment of the principal of, premium or any interest on any debt security of that series; provided, however, that the holders of a majority in principal amount of the outstanding debt securities of any series may rescind an acceleration and its consequences, including any related payment default that resulted from the acceleration. (Section 6.13)
 
Defeasance of Debt Securities and Certain Covenants in Certain Circumstances
 
Legal Defeasance. The indenture provides that, unless otherwise provided by the terms of the applicable series of debt securities, we may be discharged from any and all obligations in respect of the debt securities of any series (subject to certain exceptions). We will be so discharged upon the irrevocable deposit with the trustee, in trust, of money and/or U.S. government obligations or, in the case of debt securities denominated in a single currency other than U.S. Dollars, government obligations of the government that issued or caused to be issued such currency, that, through the payment of interest and principal in accordance with their terms, will provide money or U.S. government obligations in an amount sufficient in the opinion of a nationally recognized firm of independent public accountants or investment bank to pay and discharge each installment of principal, premium and interest on and any mandatory sinking fund payments in respect of the debt securities of that series on the stated maturity of those payments in accordance with the terms of the indenture and those debt securities.
 
This discharge may occur only if, among other things, we have delivered to the trustee an opinion of counsel stating that we have received from, or there has been published by, the United States Internal Revenue Service a ruling or, since the date of execution of the indenture, there has been a change in the applicable United States federal income tax law, in either case to the effect that, and based thereon such opinion shall confirm that, the holders of the debt securities of that series will not recognize income, gain or loss for United States federal income tax purposes as a result of the deposit, defeasance and discharge and will be subject to United States federal income tax on the same amounts and in the same manner and at the same times as would have been the case if the deposit, defeasance and discharge had not occurred. (Section 8.3)
 
Defeasance of Certain Covenants. The indenture provides that, unless otherwise provided by the terms of the applicable series of debt securities, upon compliance with certain conditions:
 
we may omit to comply with the covenant described under the heading “Consolidation, Merger and Sale of Assets” and certain other covenants set forth in the indenture, as well as any additional covenants which may be set forth in the applicable prospectus supplement; and
 
any omission to comply with those covenants will not constitute a Default or an Event of Default with respect to the debt securities of that series (“covenant defeasance”).
 
 
 
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The conditions include:
 
depositing with the trustee money and/or U.S. government obligations or, in the case of debt securities denominated in a single currency other than U.S. Dollars, government obligations of the government that issued or caused to be issued such currency, that, through the payment of interest and principal in accordance with their terms, will provide money in an amount sufficient in the opinion of a nationally recognized firm of independent public accountants or investment bank to pay and discharge each installment of principal of, premium and interest on and any mandatory sinking fund payments in respect of the debt securities of that series on the stated maturity of those payments in accordance with the terms of the indenture and those debt securities; and
 
delivering to the trustee an opinion of counsel to the effect that the holders of the debt securities of that series will not recognize income, gain or loss for United States federal income tax purposes as a result of the deposit and related covenant defeasance and will be subject to United States federal income tax on the same amounts and in the same manner and at the same times as would have been the case if the deposit and related covenant defeasance had not occurred. (Section 8.4)
 
No Personal Liability of Directors, Officers, Employees or Securityholders
 
None of our past, present or future directors, officers, employees or securityholders, as such, will have any liability for any of our obligations under the debt securities or the indenture or for any claim based on, or in respect or by reason of, such obligations or their creation. By accepting a debt security, each holder waives and releases all such liability. This waiver and release is part of the consideration for the issue of the debt securities. However, this waiver and release may not be effective to waive liabilities under U.S. federal securities laws, and it is the view of the SEC that such a waiver is against public policy.
 
Governing Law
 
The indenture and the debt securities, including any claim or controversy arising out of or relating to the indenture or the securities, will be governed by the laws of the State of New York.
 
The indenture will provide that we, the trustee and the holders of the debt securities (by their acceptance of the debt securities) irrevocably waive, to the fullest extent permitted by applicable law, any and all right to trial by jury in any legal proceeding arising out of or relating to the indenture, the debt securities or the transactions contemplated thereby.
 
The indenture will provide that any legal suit, action or proceeding arising out of or based upon the indenture or the transactions contemplated thereby may be instituted in the federal courts of the United States of America located in the City of New York or the courts of the State of New York in each case located in the City of New York, and we, the trustee and the holder of the debt securities (by their acceptance of the debt securities) irrevocably submit to the non-exclusive jurisdiction of such courts in any such suit, action or proceeding. The indenture will further provide that service of any process, summons, notice or document by mail (to the extent allowed under any applicable statute or rule of court) to such party’s address set forth in the indenture will be effective service of process for any suit, action or other proceeding brought in any such court. The indenture will further provide that we, the trustee and the holders of the debt securities (by their acceptance of the debt securities) irrevocably and unconditionally waive any objection to the laying of venue of any suit, action or other proceeding in the courts specified above and irrevocably and unconditionally waive and agree not to plead or claim any such suit, action or other proceeding has been brought in an inconvenient forum. (Section 10.10)
 
  
 
 
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DESCRIPTION OF DEPOSITARY SHARES
 
We may, at our option, elect to offer depositary shares rather than full shares of preferred stock. Each depositary share will represent ownership of and entitlement to all rights and preferences of a fraction of a share of preferred stock of a specified series (including dividend, voting, redemption and liquidation rights). The applicable fraction will be specified in a prospectus supplement. The shares of preferred stock represented by the depositary shares will be deposited with a depositary named in the applicable prospectus supplement, under a deposit agreement among us, the depositary and the holders of the certificates evidencing depositary shares, or depositary receipts. Depositary receipts will be delivered to those persons purchasing depositary shares in the offering. The depositary will be the transfer agent, registrar and dividend disbursing agent for the depositary shares. Holders of depositary receipts agree to be bound by the deposit agreement, which requires holders to take certain actions such as filing proof of residence and paying certain charges.
 
The summary of the terms of the depositary shares contained in this prospectus does not purport to be complete and is subject to, and qualified in its entirety by, the provisions of the deposit agreement and our articles of incorporation and the certificate of designation that are, or will be, filed with the SEC for the applicable series of preferred stock.
 
Dividends
 
The depositary will distribute all cash dividends or other cash distributions received in respect of the series of preferred stock represented by the depositary shares to the record holders of depositary receipts in proportion to the number of depositary shares owned by such holders on the relevant record date, which will be the same date as the record date fixed by us for the applicable series of preferred stock. The depositary, however, will distribute only such amount as can be distributed without attributing to any depositary share a fraction of one cent, and any balance not so distributed will be added to and treated as part of the next sum received by the depositary for distribution to record holders of depositary receipts then outstanding.
 
In the event of a distribution other than in cash, the depositary will distribute property received by it to the record holders of depositary receipts entitled thereto, in proportion, as nearly as may be practicable, to the number of depositary shares owned by such holders on the relevant record date, unless the depositary determines (after consultation with us) that it is not feasible to make such distribution, in which case the depositary may (with our approval) adopt any other method for such distribution as it deems equitable and appropriate, including the sale of such property (at such place or places and upon such terms as it may deem equitable and appropriate) and distribution of the net proceeds from such sale to such holders.
 
Liquidation Preference
 
In the event of the liquidation, dissolution or winding up of the affairs of AEHR, whether voluntary or involuntary, the holders of each depositary share will be entitled to the fraction of the liquidation preference accorded each share of the applicable series of preferred stock as set forth in the applicable prospectus supplement.
 
Redemption
 
If the series of preferred stock represented by the applicable series of depositary shares is redeemable, such depositary shares will be redeemed from the proceeds received by the depositary resulting from the redemption, in whole or in part, of the preferred stock held by the depositary. Whenever we redeem any preferred stock held by the depositary, the depositary will redeem as of the same redemption date the number of depositary shares representing the shares of preferred stock so redeemed. The depositary will mail the notice of redemption promptly upon receipt of such notice from us and not less than 30 nor more than 60 days prior to the date fixed for redemption of the preferred stock and the depositary shares to the record holders of the depositary receipts.
 
Voting
 
Promptly upon receipt of notice of any meeting at which the holders of the series of preferred stock represented by the applicable series of depositary shares are entitled to vote, the depositary will mail the information contained in such notice of meeting to the record holders of the depositary receipts as of the record date for such meeting. Each such record holder of depositary receipts will be entitled to instruct the depositary as to the exercise of the voting rights pertaining to the number of shares of preferred stock represented by such record holder’s depositary shares. The depositary will endeavor, insofar as practicable, to vote such preferred stock represented by such depositary shares in accordance with such instructions, and we will agree to take all action which may be deemed necessary by the depositary in order to enable the depositary to do so. The depositary will abstain from voting any of the preferred stock to the extent that it does not receive specific instructions from the holders of depositary receipts.
 
 
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Withdrawal of Preferred Stock
 
Upon surrender of depositary receipts at the principal office of the depositary and payment of any unpaid amount due the depositary, and subject to the terms of the deposit agreement, the owner of the depositary shares evidenced thereby is entitled to delivery of the number of whole shares of preferred stock and all money and other property, if any, represented by such depositary shares. Partial shares of preferred stock will not be issued. If the depositary receipts delivered by the holder evidence a number of depositary shares in excess of the number of depositary shares representing the number of whole shares of preferred stock to be withdrawn, the depositary will deliver to such holder at the same time a new depositary receipt evidencing such excess number of depositary shares. Holders of preferred stock thus withdrawn will not thereafter be entitled to deposit such shares under the deposit agreement or to receive depositary receipts evidencing depositary shares therefor.
 
Amendment and Termination of Deposit Agreement
 
The form of depositary receipt evidencing the depositary shares and any provision of the deposit agreement may at any time and from time to time be amended by agreement between us and the depositary. However, any amendment which materially and adversely alters the rights of the holders (other than any change in fees) of depositary shares will not be effective unless such amendment has been approved by at least a majority of the depositary shares then outstanding. No such amendment may impair the right, subject to the terms of the deposit agreement, of any owner of any depositary shares to surrender the depositary receipt evidencing such depositary shares with instructions to the depositary to deliver to the holder of the preferred stock and all money and other property, if any, represented thereby, except in order to comply with mandatory provisions of applicable law.
 
The deposit agreement will be permitted to be terminated by us upon not less than 30 days prior written notice to the applicable depositary if a majority of each series of preferred stock affected by such termination consents to such termination, whereupon such depositary will be required to deliver or make available to each holder of depositary receipts, upon surrender of the depositary receipts held by such holder, such number of whole or fractional shares of preferred stock as are represented by the depositary shares evidenced by such depositary receipts together with any other property held by such depositary with respect to such depositary receipts. In addition, the deposit agreement will automatically terminate if (a) all outstanding depositary shares thereunder shall have been redeemed, (b) there shall have been a final distribution in respect of the related preferred stock in connection with any liquidation, dissolution or winding-up of AEHR and such distribution shall have been distributed to the holders of depositary receipts evidencing the depositary shares representing such preferred stock or (c) each share of the related preferred stock shall have been converted into stock of AEHR not so represented by depositary shares.
 
Charges of Depositary
 
We will pay all transfer and other taxes and governmental charges arising solely from the existence of the depositary arrangements. We will pay charges of the depositary in connection with the initial deposit of the preferred stock and initial issuance of the depositary shares, and redemption of the preferred stock and all withdrawals of preferred stock by owners of depositary shares. Holders of depositary receipts will pay transfer, income and other taxes and governmental charges and certain other charges as are provided in the deposit agreement to be for their accounts. In certain circumstances, the depositary may refuse to transfer depositary shares, may withhold dividends and distributions and sell the depositary shares evidenced by such depositary receipt if such charges are not paid. The applicable prospectus supplement will include information with respect to fees and charges, if any, in connection with the deposit or substitution of the underlying securities, the receipt and distribution of dividends, the sale or exercise of rights, the withdrawal of the underlying security, and the transferring, splitting or grouping of receipts. The applicable prospectus supplement will also include information with respect to the right to collect the fees and charges, if any, against dividends received and deposited securities.
 
Miscellaneous
 
The depositary will forward to the holders of depositary receipts all notices, reports and proxy soliciting material from us which are delivered to the depositary and which we are required to furnish to the holders of the preferred stock. In addition, the depositary will make available for inspection by holders of depositary receipts at the principal office of the depositary, and at such other places as it may from time to time deem advisable, any notices, reports and proxy soliciting material received from us which are received by the depositary as the holder of preferred stock. The applicable prospectus supplement will include information about the rights, if any, of holders of receipts to inspect the transfer books of the depositary and the list of holders of receipts.
 
 
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Neither the depositary nor AEHR assumes any obligation or will be subject to any liability under the deposit agreement to holders of depositary receipts other than for its negligence or willful misconduct. Neither the depositary nor AEHR will be liable if it is prevented or delayed by law or any circumstance beyond its control in performing its obligations under the deposit agreement. The obligations of AEHR and the depositary under the deposit agreement will be limited to performance in good faith of their duties thereunder, and they will not be obligated to prosecute or defend any legal proceeding in respect of any depositary shares or preferred stock unless satisfactory indemnity is furnished. AEHR and the depositary may rely on written advice of counsel or accountants, on information provided by holders of the depositary receipts or other persons believed in good faith to be competent to give such information and on documents believed to be genuine and to have been signed or presented by the proper party or parties.
 
In the event the depositary shall receive conflicting claims, requests or instructions from any holders of depositary receipts, on the one hand, and us, on the other hand, the depositary shall be entitled to act on such claims, requests or instructions received from us.
 
Resignation and Removal of Depositary
 
The depositary may resign at any time by delivering to us notice of its election to do so, and we may at any time remove the depositary, any such resignation or removal to take effect upon the appointment of a successor depositary and its acceptance of such appointment. Such successor depositary must be appointed within 60 days after delivery of the notice for resignation or removal and must be a bank or trust company having its principal office in the United States and having a combined capital and surplus of at least $150,000,000.
 
 
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DESCRIPTION OF WARRANTS
 
We may issue warrants for the purchase of shares of our common stock or preferred stock or of debt securities. We may issue warrants independently or together with other securities, and the warrants may be attached to or separate from any offered securities. Each series of warrants will be issued under a separate warrant agreement to be entered into between us and the investors or a warrant agent. The following summary of material provisions of the warrants and warrant agreements are subject to, and qualified in their entirety by reference to, all the provisions of the warrant agreement and warrant certificate applicable to a particular series of warrants. The terms of any warrants offered under a prospectus supplement may differ from the terms described below. We urge you to read the applicable prospectus supplement and any related free writing prospectus, as well as the complete warrant agreements and warrant certificates that contain the terms of the warrants.
 
The particular terms of any issue of warrants will be described in the prospectus supplement relating to the issue. Those terms may include:
 
the number of shares of common stock or preferred stock purchasable upon the exercise of warrants to purchase such shares and the price at which such number of shares may be purchased upon such exercise;
 
the designation, stated value and terms (including, without limitation, liquidation, dividend, conversion and voting rights) of the series of preferred stock purchasable upon exercise of warrants to purchase preferred stock;
 
the principal amount of debt securities that may be purchased upon exercise of a debt warrant and the exercise price for the warrants, which may be payable in cash, securities or other property;
 
the date, if any, on and after which the warrants and the related debt securities, preferred stock or common stock will be separately transferable;
 
the terms of any rights to redeem or call the warrants;
 
the date on which the right to exercise the warrants will commence and the date on which the right will expire;
 
United States Federal income tax consequences applicable to the warrants; and
 
any additional terms of the warrants, including terms, procedures, and limitations relating to the exchange, exercise and settlement of the warrants.
 
Holders of equity warrants will not be entitled:
 
to vote, consent or receive dividends;
 
receive notice as shareholders with respect to any meeting of shareholders for the election of our directors or any other matter; or
 
exercise any rights as shareholders of AEHR.
 
Each warrant will entitle its holder to purchase the principal amount of debt securities or the number of shares of preferred stock or common stock at the exercise price set forth in, or calculable as set forth in, the applicable prospectus supplement. Unless we otherwise specify in the applicable prospectus supplement, holders of the warrants may exercise the warrants at any time up to the specified time on the expiration date that we set forth in the applicable prospectus supplement. After the close of business on the expiration date, unexercised warrants will become void.
 
A holder of warrant certificates may exchange them for new warrant certificates of different denominations, present them for registration of transfer and exercise them at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement. Until any warrants to purchase debt securities are exercised, the holder of the warrants will not have any rights of holders of the debt securities that can be purchased upon exercise, including any rights to receive payments of principal, premium or interest on the underlying debt securities or to enforce covenants in the applicable indenture. Until any warrants to purchase common stock or preferred stock are exercised, the holders of the warrants will not have any rights of holders of the underlying common stock or preferred stock, including any rights to receive dividends or payments upon any liquidation, dissolution or winding up on the common stock or preferred stock, if any.
 
 
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DESCRIPTION OF SUBSCRIPTION RIGHTS
 
We may issue subscription rights to purchase our common stock, preferred stock or debt securities. These subscription rights may be offered independently or together with any other security offered hereby and may or may not be transferable by the stockholder receiving the subscription rights in such offering. In connection with any offering of subscription rights, we may enter into a standby arrangement with one or more underwriters or other purchasers pursuant to which the underwriters or other purchasers may be required to purchase any securities remaining unsubscribed for after such offering.
 
The prospectus supplement relating to any subscription rights we offer, if any, will, to the extent applicable, include specific terms relating to the offering, including some or all of the following:
 
 
the price, if any, for the subscription rights;
 
 
the exercise price payable for our common stock, preferred stock or debt securities upon the exercise of the
subscription rights;
 
 
the number of subscription rights to be issued to each stockholder;
 
 
the number and terms of our common stock, preferred stock or debt securities which may be purchased per each
subscription right;
 
 
the extent to which the subscription rights are transferable;
 
 
any other terms of the subscription rights, including the terms, procedures and limitations relating to the exchange
and exercise of the subscription rights;
 
 
the date on which the right to exercise the subscription rights shall commence, and the date on which the
subscription rights shall expire;
 
 
the extent to which the subscription rights may include an over-subscription privilege with respect to
unsubscribed securities or an over-allotment privilege to the extent the securities are fully subscribed; and
 
 
if applicable, the material terms of any standby underwriting or purchase arrangement which may be entered
into by AEHR in connection with the offering of subscription rights.
 
The description in the applicable prospectus supplement of any subscription rights we offer will not necessarily be complete and will be qualified in its entirety by reference to the applicable subscription rights certificate, which will be filed with the SEC if we offer subscription rights. We urge you to read the applicable subscription rights certificate and any applicable prospectus supplement in their entirety.
 
 
 
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DESCRIPTION OF UNITS
 
We may issue units consisting of any combination of the other types of securities offered under this prospectus in one or more series. We may evidence each series of units by unit certificates that we will issue under a separate agreement. We may enter into unit agreements with a unit agent. Each unit agent will be a bank or trust company that we select. We will indicate the name and address of the unit agent in the applicable prospectus supplement relating to a particular series of units.
 
The following description, together with the additional information included in any applicable prospectus supplement, summarizes the general features of the units that we may offer under this prospectus. You should read any prospectus supplement and any free writing prospectus that we may authorize to be provided to you related to the series of units being offered, as well as the complete unit agreements that contain the terms of the units. Specific unit agreements will contain additional important terms and provisions and we will file as an exhibit to the registration statement of which this prospectus is a part, or will incorporate by reference from another report that we file with the SEC, the form of each unit agreement relating to units offered under this prospectus.
 
If we offer any units, certain terms of that series of units will be described in the applicable prospectus supplement, including, without limitation, the following, as applicable:
 
the title of the series of units;
 
identification and description of the separate constituent securities comprising the units;
 
the price or prices at which the units will be issued;
 
the date, if any, on and after which the constituent securities comprising the units will be separately transferable;
 
a discussion of certain United States federal income tax considerations applicable to the units; and
 
any other terms of the units and their constituent securities.
 
 
 
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GLOBAL SECURITIES
Book-Entry, Delivery and Form
 
Unless we indicate differently in any applicable prospectus supplement or free writing prospectus, the securities initially will be issued in book-entry form and represented by one or more global notes or global securities, or, collectively, global securities. The global securities will be deposited with, or on behalf of, The Depository Trust Company, New York, New York, as depositary, or DTC, and registered in the name of Cede & Co., the nominee of DTC. Unless and until it is exchanged for individual certificates evidencing securities under the limited circumstances described below, a global security may not be transferred except as a whole by the depositary to its nominee or by the nominee to the depositary, or by the depositary or its nominee to a successor depositary or to a nominee of the successor depositary.
 
DTC has advised us that it is:
 
a limited-purpose trust company organized under the New York Banking Law;
 
a “banking organization” within the meaning of the New York Banking Law;
 
a member of the Federal Reserve System;
 
a “clearing corporation” within the meaning of the New York Uniform Commercial Code; and
 
a “clearing agency” registered pursuant to the provisions of Section 17A of the Exchange Act.
 
DTC holds securities that its participants deposit with DTC. DTC also facilitates the settlement among its participants of securities transactions, such as transfers and pledges, in deposited securities through electronic computerized book-entry changes in participants’ accounts, thereby eliminating the need for physical movement of securities certificates. “Direct participants” in DTC include securities brokers and dealers, including underwriters, banks, trust companies, clearing corporations and other organizations. DTC is a wholly-owned subsidiary of The Depository Trust & Clearing Corporation, or DTCC. DTCC is the holding company for DTC, National Securities Clearing Corporation and Fixed Income Clearing Corporation, all of which are registered clearing agencies. DTCC is owned by the users of its regulated subsidiaries. Access to the DTC system is also available to others, which we sometimes refer to as indirect participants, that clear through or maintain a custodial relationship with a direct participant, either directly or indirectly. The rules applicable to DTC and its participants are on file with the SEC.
 
Purchases of securities under the DTC system must be made by or through direct participants, which will receive a credit for the securities on DTC’s records. The ownership interest of the actual purchaser of a security, which we sometimes refer to as a beneficial owner, is in turn recorded on the direct and indirect participants’ records. Beneficial owners of securities will not receive written confirmation from DTC of their purchases. However, beneficial owners are expected to receive written confirmations providing details of their transactions, as well as periodic statements of their holdings, from the direct or indirect participants through which they purchased securities. Transfers of ownership interests in global securities are to be accomplished by entries made on the books of participants acting on behalf of beneficial owners. Beneficial owners will not receive certificates representing their ownership interests in the global securities, except under the limited circumstances described below.
 
To facilitate subsequent transfers, all global securities deposited by direct participants with DTC will be registered in the name of DTC’s partnership nominee, Cede & Co., or such other name as may be requested by an authorized representative of DTC. The deposit of securities with DTC and their registration in the name of Cede & Co. or such other nominee will not change the beneficial ownership of the securities. DTC has no knowledge of the actual beneficial owners of the securities. DTC’s records reflect only the identity of the direct participants to whose accounts the securities are credited, which may or may not be the beneficial owners. The participants are responsible for keeping account of their holdings on behalf of their customers.
 
So long as the securities are in book-entry form, you will receive payments and may transfer securities only through the facilities of the depositary and its direct and indirect participants. We will maintain an office or agency in the location specified in the prospectus supplement for the applicable securities, where notices and demands in respect of the securities and the indenture may be delivered to us and where certificated securities may be surrendered for payment, registration of transfer or exchange.
 
 
 
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Conveyance of notices and other communications by DTC to direct participants, by direct participants to indirect participants and by direct participants and indirect participants to beneficial owners will be governed by arrangements among them, subject to any legal requirements in effect from time to time.
 
Redemption notices will be sent to DTC. If less than all of the securities of a particular series are being redeemed, DTC’s practice is to determine by lot the amount of the interest of each direct participant in the securities of such series to be redeemed.
 
Neither DTC nor Cede & Co. (or such other DTC nominee) will consent or vote with respect to the securities. Under its usual procedures, DTC will mail an omnibus proxy to us as soon as possible after the record date. The omnibus proxy assigns the consenting or voting rights of Cede & Co. to those direct participants to whose accounts the securities of such series are credited on the record date, identified in a listing attached to the omnibus proxy.
 
So long as securities are in book-entry form, we will make payments on those securities to the depositary or its nominee, as the registered owner of such securities, by wire transfer of immediately available funds. If securities are issued in definitive certificated form under the limited circumstances described below and unless if otherwise provided in the description of the applicable securities herein or in the applicable prospectus supplement, we will have the option of making payments by check mailed to the addresses of the persons entitled to payment or by wire transfer to bank accounts in the United States designated in writing to the applicable trustee or other designated party at least 15 days before the applicable payment date by the persons entitled to payment, unless a shorter period is satisfactory to the applicable trustee or other designated party.
 
Redemption proceeds, distributions and dividend payments on the securities will be made to Cede & Co., or such other nominee as may be requested by an authorized representative of DTC. DTC’s practice is to credit direct participants’ accounts upon DTC’s receipt of funds and corresponding detail information from us on the payment date in accordance with their respective holdings shown on DTC records. Payments by participants to beneficial owners will be governed by standing instructions and customary practices, as is the case with securities held for the account of customers in bearer form or registered in “street name.” Those payments will be the responsibility of participants and not of DTC or us, subject to any statutory or regulatory requirements in effect from time to time. Payment of redemption proceeds, distributions and dividend payments to Cede & Co., or such other nominee as may be requested by an authorized representative of DTC, is our responsibility, disbursement of payments to direct participants is the responsibility of DTC, and disbursement of payments to the beneficial owners is the responsibility of direct and indirect participants.
 
Except under the limited circumstances described below, purchasers of securities will not be entitled to have securities registered in their names and will not receive physical delivery of securities. Accordingly, each beneficial owner must rely on the procedures of DTC and its participants to exercise any rights under the securities and the indenture.
 
The laws of some jurisdictions may require that some purchasers of securities take physical delivery of securities in definitive form. Those laws may impair the ability to transfer or pledge beneficial interests in securities.
 
DTC may discontinue providing its services as securities depositary with respect to the securities at any time by giving reasonable notice to us. Under such circumstances, in the event that a successor depositary is not obtained, securities certificates are required to be printed and delivered.
 
As noted above, beneficial owners of a particular series of securities generally will not receive certificates representing their ownership interests in those securities. However, if:
 
DTC notifies us that it is unwilling or unable to continue as a depositary for the global security or securities representing such series of securities or if DTC ceases to be a clearing agency registered under the Exchange Act at a time when it is required to be registered and a successor depositary is not appointed within 90 days of the notification to us or of our becoming aware of DTC’s ceasing to be so registered, as the case may be;
 
we determine, in our sole discretion, not to have such securities represented by one or more global securities; or
 
an Event of Default has occurred and is continuing with respect to such series of securities,
 
we will prepare and deliver certificates for such securities in exchange for beneficial interests in the global securities. Any beneficial interest in a global security that is exchangeable under the circumstances described in the preceding sentence will be exchangeable for securities in definitive certificated form registered in the names that the depositary directs. It is expected that these directions will be based upon directions received by the depositary from its participants with respect to ownership of beneficial interests in the global securities.
 
 
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Euroclear and Clearstream
 
If so provided in the applicable prospectus supplement, you may hold interests in a global security through Clearstream Banking S.A., which we refer to as “Clearstream,” or Euroclear Bank S.A./N.V., as operator of the Euroclear System, which we refer to as “Euroclear,” either directly if you are a participant in Clearstream or Euroclear or indirectly through organizations which are participants in Clearstream or Euroclear. Clearstream and Euroclear will hold interests on behalf of their respective participants through customers’ securities accounts in the names of Clearstream and Euroclear, respectively, on the books of their respective U.S. depositaries, which in turn will hold such interests in customers’ securities accounts in such depositaries’ names on DTC’s books.
 
Clearstream and Euroclear are securities clearance systems in Europe. Clearstream and Euroclear hold securities for their respective participating organizations and facilitate the clearance and settlement of securities transactions between those participants through electronic book-entry changes in their accounts, thereby eliminating the need for physical movement of certificates.
 
Payments, deliveries, transfers, exchanges, notices and other matters relating to beneficial interests in global securities owned through Euroclear or Clearstream must comply with the rules and procedures of those systems. Transactions between participants in Euroclear or Clearstream, on one hand, and other participants in DTC, on the other hand, are also subject to DTC’s rules and procedures.
 
Investors will be able to make and receive through Euroclear and Clearstream payments, deliveries, transfers and other transactions involving any beneficial interests in global securities held through those systems only on days when those systems are open for business. Those systems may not be open for business on days when banks, brokers and other institutions are open for business in the United States.
 
Cross-market transfers between participants in DTC, on the one hand, and participants in Euroclear or Clearstream, on the other hand, will be effected through DTC in accordance with the DTC’s rules on behalf of Euroclear or Clearstream, as the case may be, by their respective U.S. depositaries; however, such cross-market transactions will require delivery of instructions to Euroclear or Clearstream, as the case may be, by the counterparty in such system in accordance with the rules and procedures and within the established deadlines (European time) of such system. Euroclear or Clearstream, as the case may be, will, if the transaction meets its settlement requirements, deliver instructions to its U.S. depositary to take action to effect final settlement on its behalf by delivering or receiving interests in the global securities through DTC, and making or receiving payment in accordance with normal procedures for same-day fund settlement. Participants in Euroclear or Clearstream may not deliver instructions directly to their respective U.S. depositaries.
 
Due to time zone differences, the securities accounts of a participant in Euroclear or Clearstream purchasing an interest in a global security from a direct participant in DTC will be credited, and any such crediting will be reported to the relevant participant in Euroclear or Clearstream, during the securities settlement processing day (which must be a business day for Euroclear or Clearstream) immediately following the settlement date of DTC. Cash received in Euroclear or Clearstream as a result of sales of interests in a global security by or through a participant in Euroclear or Clearstream to a direct participant in DTC will be received with value on the settlement date of DTC but will be available in the relevant Euroclear or Clearstream cash account only as of the business day for Euroclear or Clearstream following DTC’s settlement date.
 
Other
 
The information in this section of this prospectus concerning DTC, Clearstream, Euroclear and their respective book-entry systems has been obtained from sources that we believe to be reliable, but we do not take responsibility for this information. This information has been provided solely as a matter of convenience. The rules and procedures of DTC, Clearstream and Euroclear are solely within the control of those organizations and could change at any time. Neither we nor the trustee nor any agent of ours or of the trustee has any control over those entities and none of us takes any responsibility for their activities. You are urged to contact DTC, Clearstream and Euroclear or their respective participants directly to discuss those matters. In addition, although we expect that DTC, Clearstream and Euroclear will perform the foregoing procedures, none of them is under any obligation to perform or continue to perform such procedures and such procedures may be discontinued at any time. Neither we nor any agent of ours will have any responsibility for the performance or nonperformance by DTC, Clearstream and Euroclear or their respective participants of these or any other rules or procedures governing their respective operations.
 
 
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PLAN OF DISTRIBUTION
 
We may sell the securities from time to time pursuant to underwritten public offerings, negotiated transactions, block trades or a combination of these methods or through underwriters or dealers, through agents and/or directly to one or more purchasers. The securities may be distributed from time to time in one or more transactions:
 
 
at a fixed price or prices, which may be changed;
 
at market prices prevailing at the time of sale;
 
at prices related to such prevailing market prices; or
 
at negotiated prices.
 
Each time that we sell securities covered by this prospectus, we will provide a prospectus supplement or supplements that will describe the method of distribution and set forth the terms and conditions of the offering of such securities, including the offering price of the securities and the proceeds to us, if applicable.
 
Offers to purchase the securities being offered by this prospectus may be solicited directly. Agents may also be designated to solicit offers to purchase the securities from time to time. Any agent involved in the offer or sale of our securities will be identified in a prospectus supplement.
 
If a dealer is utilized in the sale of the securities being offered by this prospectus, the securities will be sold to the dealer, as principal. The dealer may then resell the securities to the public at varying prices to be determined by the dealer at the time of resale.
 
If an underwriter is utilized in the sale of the securities being offered by this prospectus, an underwriting agreement will be executed with the underwriter at the time of sale and the name of any underwriter will be provided in the prospectus supplement that the underwriter will use to make resales of the securities to the public. In connection with the sale of the securities, we or the purchasers of securities for whom the underwriter may act as agent, may compensate the underwriter in the form of underwriting discounts or commissions. The underwriter may sell the securities to or through dealers, and those dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for which they may act as agent. Unless otherwise indicated in a prospectus supplement, an agent will be acting on a best efforts basis and a dealer will purchase securities as a principal, and may then resell the securities at varying prices to be determined by the dealer.
 
Any compensation paid to underwriters, dealers or agents in connection with the offering of the securities, and any discounts, concessions or commissions allowed by underwriters to participating dealers will be provided in the applicable prospectus supplement. Underwriters, dealers and agents participating in the distribution of the securities may be deemed to be underwriters within the meaning of the Securities Act of 1933, as amended, and any discounts and commissions received by them and any profit realized by them on resale of the securities may be deemed to be underwriting discounts and commissions. We may enter into agreements to indemnify underwriters, dealers and agents against civil liabilities, including liabilities under the Securities Act, or to contribute to payments they may be required to make in respect thereof and to reimburse those persons for certain expenses.
 
Any common stock will be listed on the Nasdaq Global Capital Market, but any other securities may or may not be listed on a national securities exchange. To facilitate the offering of securities, certain persons participating in the offering may engage in transactions that stabilize, maintain or otherwise affect the price of the securities. This may include over-allotments or short sales of the securities, which involve the sale by persons participating in the offering of more securities than were sold to them. In these circumstances, these persons would cover such over-allotments or short positions by making purchases in the open market or by exercising their over-allotment option, if any. In addition, these persons may stabilize or maintain the price of the securities by bidding for or purchasing securities in the open market or by imposing penalty bids, whereby selling concessions allowed to dealers participating in the offering may be reclaimed if securities sold by them are repurchased in connection with stabilization transactions. The effect of these transactions may be to stabilize or maintain the market price of the securities at a level above that which might otherwise prevail in the open market. These transactions may be discontinued at any time.
 
We may engage in at the market offerings into an existing trading market in accordance with Rule 415(a)(4) under the Securities Act. In addition, we may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement so indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third party in such sale transactions will be an underwriter and, if not identified in this prospectus, will be named in the applicable prospectus supplement (or a post-effective amendment). In addition, we may otherwise loan or pledge securities to a financial institution or other third party that in turn may sell the securities short using this prospectus and an applicable prospectus supplement. Such financial institution or other third party may transfer its economic short position to investors in our securities or in connection with a concurrent offering of other securities.
 
The specific terms of any lock-up provisions in respect of any given offering will be described in the applicable prospectus supplement.
 
The underwriters, dealers and agents may engage in transactions with us, or perform services for us, in the ordinary course of business for which they receive compensation.
 
 
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LEGAL MATTERS
 
Latham & Watkins LLP will pass upon certain legal matters relating to the issuance and sale of the securities offered hereby on behalf of AEHR Test Systems. Additional legal matters may be passed upon for us or any underwriters, dealers or agents, by counsel that we will name in the applicable prospectus supplement.
 
EXPERTS
 
The consolidated financial statements of AEHR Test Systems as of May 31, 2021 and 2020 and for each of the three years in the period ended May 31, 2021 incorporated in this prospectus by reference to the Annual Report on Form 10-K for the year ended May 31, 2021, have been so incorporated in reliance on the report of BPM LLP, an independent registered public accounting firm.
 
Such consolidated financial statements are, and audited consolidated financial statements to be included in subsequently filed documents will be, incorporated by reference in reliance upon the reports of BPM LLP relating to such consolidated financial statements to the extent covered by consents filed with the Securities and Exchange Commission, given on the authority of said firm as experts in auditing and accounting.
 
 
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