PAGE 1 OF 3 ATMEL CORPORATION Tel:(408)441-0311 Fax:(408)436-4200 AT-27C800 FLASH RELIABILITY DATA - 150°C RETENTION BAKE (PLASTIC) - 125°C DYNAMIC LIFETEST (PLASTIC) JULY 2003 2325 Orchard Parkway San Jose CA. 95131 PAGE 2 OF 3 AT-27C800 PLASTIC PACKAGE 150°C RETENTION BAKE LOT NUMBER DATE CODE SAMPLE SIZE TOTAL NUMBER HOURS (K) NUMBER OF FAILURES 9A2729 9A9919 503 503.0 0 9A3186 9A9929 249 249.0 0 9B2297A 9B9935 250 250.0 0 FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 1,002,000 DEVICE HOURS λ = 0.07% PER 1,000 HOURS λ EXTRAPOLATION TO 50°C VIA ARRHENNIUS EQUATION AND ACTIVATION ENERGY OF 0.5eV = 0.001% PER 1,000 HOURS (10 FITS) 50°C AMBIENT CONFIDENCE ESTIMATE λ λ 60 = 0.001% PER 1,000 HOURS 60% CONFIDENCE (13 FITS) 90 = 0.003% PER 1,000 HOURS 90% CONFIDENCE (33 FITS) PAGE 3 OF 3 AT-27C800 PLASTIC PACKAGE 125°C DYNAMIC LIFETEST LOT NUMBER DATE CODE SAMPLE SIZE TOTAL NUMBER HOURS (K) NUMBER OF FAILURES 9B2297A 9B9935 200 200.0 0 9A3441 9A9925 250 250.0 0 9A3186 9A9929 250 250.0 0 FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 700,000 DEVICE HOURS λ = 0.1% PER 1,000 HOURS λ EXTRAPOLATION TO 50°C VIA ARRHENNIUS EQUATION AND ACTIVATION ENERGY OF 0.5eV = 0.003% PER 1,000 HOURS (34 FITS) 50°C AMBIENT CONFIDENCE ESTIMATE λ λ 60 = 0.005% PER 1,000 HOURS 60% CONFIDENCE (45 FITS) 90 = 0.01% PER 1,000 HOURS 90% CONFIDENCE (111 FITS)