Aehr Test Systems primarily designs, engineers and manufactures test and burn-in equipment used in the semiconductor industry. The Company's principal products are the MTX massively parallel test system, the MAX and ATX burn-in systems, the FOX full wafer contact system, test fixtures and the DiePak carrier. The MTX system is a massively parallel test system designed to reduce the cost of memory testing by performing both test and burn-in on thousands of devices simultaneously. The MAX system can effectively burn-in and functionally test sophisticated devices, such as digital signal processors, microprocessors, microcontrollers and systems on a chip. The FOX system is a full-wafer, contact burn-in and parallel test system designed to make contact with all pads of a wafer simultaneously, enabling full-wafer, burn-in and parallel test.