Aehr Test Systems Receives $2 Million in FOX™ Orders

FREMONT, Calif., May 19, 2011 (GLOBE NEWSWIRE) — Aehr Test Systems (Nasdaq:AEHR), a worldwide supplier of semiconductor test and burn-in equipment, announced today that it has received over $2 million in additional orders for FOX-1 WaferPak contactors and support services from a leading flash memory manufacturer.

“We are very pleased to have received these follow-on orders,” said Carl Buck, vice president of marketing at Aehr Test Systems. “We believe that these orders demonstrate the ongoing benefits that our customer achieves with our full wafer contact solution. The FOX-1 system, using a WaferPak contactor, allows parallel testing of thousands of die on a 300mm wafer with only a single touchdown. We believe that these follow-on WaferPak contactor and support services purchases are an indication that the FOX-1 full-wafer test technology reduces the cost of wafer sort test for this customer.”

The FOX-1 full wafer parallel test system, a member of the FOX family of full wafer contact systems, is most effective for test and short burn-in applications. Other members of Aehr Test’s FOX family of products are focused on long-duration full wafer burn-in and test of products such as automotive ICs, DRAMs and VCSELs (laser diodes).

About Aehr Test Systems

Headquartered in Fremont, California, Aehr Test Systems is a worldwide supplier of systems for burning-in and testing memory and logic integrated circuits and has an installed base of more than 2,500 systems worldwide. Aehr Test has developed and introduced several innovative products, including the ABTS™, FOX and MAX systems and the DiePak® carrier. The ABTS system is Aehr Test’s newest system for packaged part test during burn-in for both low-power and high-power logic as well as all common types of memory devices. The FOX system is a full wafer contact test and burn-in system. The MAX system can effectively burn-in and functionally test complex devices, such as digital signal processors, microprocessors, microcontrollers and systems-on-a-chip. The DiePak carrier is a reusable, temporary package that enables IC manufacturers to perform cost-effective final test and burn-in of bare die. For more information, please visit the Company’s website at www.aehr.com.

Safe Harbor Statement

This release contains forward-looking statements that involve risks and uncertainties relating to projections regarding customer demand and acceptance of Aehr Test’s products. Actual results may vary from projected results. These risks and uncertainties include, without limitation, acceptance by customers of the FOX and WaferPak contactor technologies, acceptance by customers of the WaferPak contactors shipped upon receipt of a purchase order and the ability of new products to meet customer needs or perform as described. See Aehr Test’s recent 10-K, 10-Q and other reports from time to time filed with the Securities and Exchange Commission (SEC), for a more detailed description of the risks facing our business. The Company 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 Sales and Marketing
(510) 623-9400 x215
vrogers@aehr.com
MKR Investor Relations Inc.
Todd Kehrli or Jim Byers
Analyst/Investor Contact
(213) 277-5550
aehr@mkr-group.com