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AEHR TEST SYSTEMS FOR IMMEDIATE RELEASE Contacts : Exhibit 99.1 Aehr Test Systems Ken Spink Chief Financial Officer ( 510 ) 623-9400 x309 - MKR Investor Relations Inc. Todd Kehrli or Jim Byers Analyst / Investor Contact ( 323 ) 468-2300 aehr@mkr-group.com Aehr Test Systems Reports Third Quarter Fiscal 2021 Financial Results ; $ 8.0 Million Bookings Quarter Begins COVID - 19 Recovery Fremont , CA ( April 8 , 2021 ) – Aehr Test Systems ( NASDAQ : AEHR ) , a worldwide supplier of semiconductor test and reliability qualification equipment , today announced financial results for its third quarter of fiscal 2021 ended February 28 , 2021 . Fiscal Third Quarter Financial Results : • Net sales were $ 5.3 million , compared to $ 6.1 million in the third quarter of fiscal 2020 . • • • • GAAP net loss was $ 735,000 , or $ 0.03 per diluted share , and includes a $ 299,000 charge related to a voluntary replacement of a component to improve long term reliability of its systems . This compared to GAAP net income of $ 245,000 , or $ 0.01 per diluted share , in the third quarter of fiscal 2020 . Non - GAAP net loss was $ 464,000 , or $ 0.02 per diluted share , and includes the voluntary component replacement charge and excludes the impact of stock - based compensation , compared to non - GAAP net income of $ 452,000 , or $ 0.02 per diluted share , in the third quarter of fiscal 2020 . Bookings were $ 8.0 million for the quarter , compared to $ 3.1 million in the third quarter of fiscal 2020 . Backlog as of February 28 , 2021 was $ 3.7 million . Effective backlog , which includes backlog at the end of fiscal third quarter plus orders since the end of the third quarter , is $ 5.3 million . Fiscal First Nine Months Financial Results : • Net sales were $ 9.0 million , compared to $ 18.5 million in the first nine months of fiscal 2020 . • • GAAP net loss was $ 2.6 million , or $ 0.11 per diluted share , compared to GAAP net income of $ 83,000 , or $ 0.00 per diluted share , in the first nine months of fiscal 2020 . Non - GAAP net loss was $ 4.2 million , or $ 0.18 per diluted share , which excludes the impact of stock - based compensation and a non - cash net gain of $ 2.2 million and tax benefit of $ 215,000 related to the closure of Aehr's Japan subsidiary during the first quarter . This compared to non - GAAP net income of $ 694,000 , or $ 0.03 per diluted share , in the first nine months of fiscal 2020 . An explanation of the use of non - GAAP financial measures and a reconciliation of Aehr's non - GAAP financial measures to the most directly comparable GAAP financial measures can be found in the accompanying tables .