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Aehr Receives First Order for FOX(TM) Wafer Level Test and Burn-in System to be used for Gallium Nitride Semiconductor Engineering and Qualification

FREMONT, CA / ACCESSWIRE / December 14, 2023 / Aehr Test Systems (NASDAQ:AEHR), a worldwide supplier of semiconductor test and burn-in equipment, today announced it has received an initial customer order for a FOX-NP™ wafer level test and burn-in system and a FOX WaferPak™ Aligner to be used for gallium nitride (GaN) power devices. The customer is a leading global supplier of semiconductor devices used in electric vehicles and power infrastructure and adds another major customer to the list of companies using Aehr's FOX products for wafer level test and burn-in of wide bandgap compound semiconductors. The FOX-NP system, including the FOX WaferPak Aligner, is scheduled to ship and be installed in the current fiscal quarter.

As Aehr's first gallium nitride customer to order a system, this company selected Aehr due in part to its unique ability to offer a total solution that allows customers to apply thermal and electrical stress conditions to thousands of devices while still in wafer form. Aehr's cutting-edge technology provides critical geolocation information across the wafer while inducing the extrinsic (early life) failures that would otherwise fail in the field without reducing the long-term reliability or life of the good devices.

Gayn Erickson, President and CEO of Aehr Test Systems, commented, "After seeing the positive results from their long and extensive evaluation of our FOX wafer level test systems for their silicon carbide devices, this customer decided to first move forward with our FOX-NP system to test their gallium nitride devices' long-term reliability failure rates, as well as qualify the production extrinsic failure screening process for their devices in applications where safety, reliability, and/or security are critical. A key consideration behind their decision is that the FOX-NP system is 100% compatible with the Aehr FOX-XP system that is targeted for high volume production and can support all the test modes needed for both gallium nitride and silicon carbide device testing and burn-in, including high-voltage testing of up to 2,000 volts with full wafer test without electrical arcing that can damage the wafer, which is a distinct advantage of our unique patented technology.

"Similar to silicon carbide, gallium nitride semiconductor MOSFETs are considered wide bandgap devices with much higher efficiencies in terms of power conversion than silicon, with gallium nitride being particularly good for lower power devices such as under 1000 watt power converters used in consumer devices such as cell phones, tablets, and laptop computers, as well as being targeted for automotive power converters for all the electrical systems in automobiles, whether electric vehicles or traditional gasoline automobiles. Gallium nitride MOSFETs are also believed by many industry analysts and technical communities to likely take over silicon as the power converter of choice for photovoltaic (solar panel) applications.

"Gallium nitride and silicon carbide devices both have excellent long-term intrinsic reliability, making them very good for automotive and industrial applications. But both also experience higher than acceptable early life or extrinsic failures related to the material and processing steps. Gallium nitride and silicon carbide semiconductor suppliers can add a special stress or screening test known as burn-in on 100% of the devices to identify and remove these early life failures so that they can meet the end customers' target reliability needs. This 100% burn-in requirement is not unique to these devices, as it is also the case with microprocessors and microcontrollers, dynamic random-access memories (DRAM), flash non-volatile memories, as well as many sensors used in automotive and other industrial applications."

Aehr enables its customers to cost-effectively implement the needed testing and qualification process for semiconductor devices that experience early life failures by not only applying the electrical stress condition to every device on the wafer but by also testing up to 18 wafers at a time using the FOX-XP production test and burn in system. These electrical tests are done with up to thousands of precise calibrated electrical source and measurement instruments per wafer. These tests are done while maintaining the temperature at an accurately programmed thermal temperature across each of the wafers using a direct conduction thermal transfer via a proprietary patented precision thermal chuck per wafer.

The FOX-NP compliments Aehr's production FOX-XP system by using the exact same test ‘Blades' that are in the FOX-XP to allow 100% correlation between the results on the FOX-NP to the FOX-XP.

The FOX-XP and FOX-NP systems, available with multiple WaferPak Contactors (full wafer test) or multiple DiePakTM Carriers (singulated die/module test) configurations, are capable of functional test and burn-in/cycling of devices such as silicon carbide and gallium nitride power semiconductors, silicon photonics as well as other optical devices, 2D and 3D sensors, flash memories, magnetic sensors, microcontrollers, and other leading-edge ICs in either wafer form factor, before they are assembled into single or multi-die stacked packages, or in singulated die or module form factor.

About Aehr Test Systems

Headquartered in Fremont, California, Aehr Test Systems is a leading provider of test solutions for testing, burning-in, and stabilizing semiconductor devices in wafer level, singulated die, and package part form, and has installed thousands of systems worldwide. Increasing quality, reliability, safety, and security needs of semiconductors used across multiple applications, including electric vehicles, electric vehicle charging infrastructure, solar and wind power, computing, data and telecommunications infrastructure, and solid-state memory and storage, are driving additional test requirements, incremental capacity needs, and new opportunities for Aehr Test products and solutions. Aehr has developed and introduced several innovative products including the FOX-PTM families of test and burn-in systems and FOX WaferPakTM Aligner, FOX WaferPak Contactor, FOX DiePak® Carrier and FOX DiePak Loader. The FOX-XP and FOX-NP systems are full wafer contact and singulated die/module test and burn-in systems that can test, burn-in, and stabilize a wide range of devices such as leading-edge silicon carbide-based and other power semiconductors, 2D and 3D sensors used in mobile phones, tablets, and other computing devices, memory semiconductors, processors, microcontrollers, systems-on-a-chip, and photonics and integrated optical devices. The FOX-CP system is a low-cost single-wafer compact test solution for logic, memory and photonic devices and the newest addition to the FOX-P product family. The FOX WaferPak Contactor contains a unique full wafer contactor capable of testing wafers up to 300mm that enables IC manufacturers to perform test, burn-in, and stabilization of full wafers on the FOX-P systems. The FOX DiePak Carrier allows testing, burning in, and stabilization of singulated bare die and modules up to 1024 devices in parallel per DiePak on the FOX-NP and FOX-XP systems up to nine DiePaks at a time. For more information, please visit Aehr Test Systems' website at www.aehr.com.

Safe Harbor Statement

This press release contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements generally relate to future events or Aehr's future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as "may," "will," "should," "expects," "plans," "anticipates," "going to," "could," "intends," "target," "projects," "contemplates," "believes," "estimates," "predicts," "potential," or "continue," or the negative of these words or other similar terms or expressions that concern Aehr's expectations, strategy, priorities, plans, or intentions. Forward-looking statements in this press release include, but are not limited to, future requirements and orders of Aehr's new and existing customers; bookings forecasted for proprietary WaferPakTM and DiePak consumables; and expectations related to long-term demand for Aehr's productions and the attractiveness of key markets. The forward-looking statements contained in this press release are also subject to other risks and uncertainties, including those more fully described in Aehr's recent Form 10-K, 10-Q and other reports filed from time to time with the Securities and Exchange Commission. Aehr disclaims any obligation to update information contained in any forward-looking statement to reflect events or circumstances occurring after the date of this press release.

Contacts:

Aehr Test Systems
Vernon Rogers
EVP of Sales & Marketing
(510) 623-9400 x215
vrogers@aehr.com
MKR Investor Relations Inc.
Todd Kehrli or Jim Byers
Analyst/Investor Contact
(323) 468-2300
aehr@mkr-group.com

SOURCE: Aehr Test Systems



View the original press release on accesswire.com

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