PAGE 1 OF 8 ATMEL CORPORATION Tel:(408)441-0311 Fax:(408)436-4200 AT-28C64B PEROM RELIABILITY DATA -150°C OPERATING LIFE TEST -200°C RETENTION BAKE -CYCLE TEST -125°C OPERATING LIFE TEST (PLASTIC) -150°C RETENTION BAKE (PLASTIC) -15 PSIG PRESSURE POT -85°C/85% RELATIVE HUMIDITY OPERATING LIFE TEST * This report was generated from AT-28C64B reliability testing. This data is applicable to the following device types due to same technology grouping as defined in MIL-M-38535 Appendix A: AT-28C256 AT-28HC64B APRIL 2005 2325 Orchard Parkway San Jose CA. 95131 PAGE 2 OF 8 AT-28C64B 150°C DYNAMIC OPERATING LIFE TEST LOT NUMBER DATE CODE SAMPLE SIZE TOTAL CKT-HRS(K) NUMBER OF FAILURES 3B0910 3B9327 78 78.0 0 3C1449 3C9348 78 78.0 0 4A1345 4A9424 80 200.0 0 4C2051 4C9449 78 78.0 0 4D1708 4D9507 80 200.0 0 5A1542 5A9520 80 200.0 0 6L0014-1 6L9629 480 480.0 0 6C1822A 6C9646 200 200.0 0 6C2138 6C9641 80 80.0 0 6M0064-3 6M9652 80 80.0 0 6D1565-9 6D9702 80 80.0 0 6D1584 6D9704 579 579.0 0 6D1820-2 6D9705 80 80.0 0 6N8531 6N9708 80 80.0 0 FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 2,493,000 DEVICE HOURS λ = 0.03% PER 1,000 HOURS λ EXTRAPOLATION TO 50°C VIA ARRHENNIUS EQUATION AND ACTIVATION ENERGY OF 0.5eV = 0.0004% PER 1,000 HOURS (4 FITS) 50°C AMBIENT CONFIDENCE ESTIMATE λ λ 60 = 0.0005% PER 1,000 HOURS 60% CONFIDENCE (5 FITS) 90 = 0.001% PER 1,000 HOURS 90% CONFIDENCE (13 FITS) PAGE 3 OF 8 AT-28C64B 200°C DATA RETENTION BAKE LOT NUMBER DATE CODE SAMPLE SIZE TOTAL CKT-HRS(K) NUMBER OF OF FAILURES 3C1449 3C9348 78 78.0 0 4A1345 4A9424 80 80.0 0 4D1708 4D9507 80 80.0 0 5B0417 5B9531 80 80.0 0 5C1544 5C9539 79 79.0 0 5A1542 5A9520 79 79.0 0 6L0014-1 6L9629 79 79.0 0 E6C2138 6C9641 79 79.0 0 6D1565-9 6D9702 80 80.0 0 6D1584 6D9704 80 80.0 0 6D1820-2 6D9705 80 80.0 0 6N8531 6N9708 80 80.0 0 FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 954,000 DEVICE HOURS λ = 0.07% PER 1,000 HOURS λ EXTRAPOLATION TO 50°C VIA ARRHENNIUS EQUATION AND ACTIVATION ENERGY OF 0.5eV = 0.0003% PER 1,000 HOURS (3 FITS) 50°C AMBIENT CONFIDENCE ESTIMATE λ λ 60 = 0.0003% PER 1,000 HOURS 60% CONFIDENCE (3 FITS) 90 = 0.0008% PER 1,000 HOURS 90% CONFIDENCE (8 FITS) PAGE 4 OF 8 Data cycling followed by 200°C bakes were performed to determine the device endurance. Each address was byte cycled through all addresses. The parts were baked and then verified. The results of the cycling tests are shown below. No device failures have been found. CYCLE TEST RESULTS OF AT-28C64B LOT BAKE NUMBER TIME DATE SAMPLE NO. OF NO. OF BAKE CODE SIZE BYTE CYCLE FAILURES TEMP 3B0910 hrs 3B9327 80 10,000 0 200°C 176 3C1449 hrs 3C9348 78 10,000 0 200°C 176 4A1345 hrs 4A9424 80 10,000 0 200°C 176 4C2051 hrs 4C9449 78 10,000 0 200°C 176 4D1708 hrs 4D9507 80 10,000 0 200°C 176 5A1542 hrs 5A9520 80 100,000 0 200°C 176 PAGE 5 OF 8 AT-28C64B PLASTIC PACKAGE 125°C DYNAMIC OPERATING LIFE TEST LOT DATE SAMPLE TOTAL NUMBER OF NUMBER FAILURES CODE PKG SIZE CKT-HRS(K) OF 3B0910B1 3B9329 32 PLCC 75 75.0 0 4A2050 4A9422 32 PLCC 261 261.0 0 6L0014-3 6L9630 28 PDIP 198 198.0 0 7K5050 7K9734 28 TSOP 199 199.0 0 7A3015-1 7A9807 28 SOIC 100 100.0 0 8G3093-3 8G9837 28 PDIP 100 100.0 FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 933,000 DEVICE HOURS λ 50°C AMBIENT λ CONFIDENCE ESTIMATE λ λ = 0.07% PER 1,000 HOURS EXTRAPOLATION TO 50°C VIA ARRHENNIUS EQUATION AND ACTIVATION ENERGY OF 0.5eV = 0.003% PER 1,000 HOURS (25 FITS) 60 = 0.004% PER 1,000 HOURS 60% CONFIDENCE (33 FITS) 90 = 0.01% PER 1,000 HOURS 90% CONFIDENCE (84 FITS) 0 PAGE 6 OF 8 AT-28C64B PLASTIC PACKAGE 150°C RETENTION BAKE LOT DATE SAMPLE TOTAL NUMBER OF NUMBER FAILURES CODE 3B0910B1 3B9329 6L0014-3 PKG SIZE CKT-HRS(K) OF 32 PLCC 77 77.0 0 6L9630 28 PDIP 128 128.0 0 7K5050 7K9734 28 TSOP 290 290.0 0 7A3015-1 7A9807 28 SOIC 100 100.0 0 8G3093-3 8G9837 28 PDIP 300 300.0 0 1E0610 1E0122 28 PDIP 50 50.0 0 FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 945,000 DEVICE HOURS λ 50°C AMBIENT λ CONFIDENCE ESTIMATE λ λ = 0.07% PER 1,000 HOURS EXTRAPOLATION TO 50°C VIA ARRHENNIUS EQUATION AND ACTIVATION ENERGY OF 0.5eV = 0.001% PER 1,000 HOURS (11 FITS) 60 = 0.001% PER 1,000 HOURS 60% CONFIDENCE (14 FITS) 90 = 0.004% PER 1,000 HOURS 90% CONFIDENCE (35 FITS) PAGE 7 OF 8 AT-28C64B PLASTIC PACKAGE PRESSURE POT TEST DATE CODE PKG TYPE SAMPLE SIZE NUMBER OF FAILURES AT INDICATED HOURS (24) (48) (72) (96) 3B9329 32 PLCC 89 0 0 0 0 4D9508 28 SOIC 116 0 0 0 0 7K9734 28 TSOP 200 0 0 0 0 7A9807 28 SOIC 50 0 0 0 0 1E0122 28 PDIP 50 0 0 0 0 PAGE 8 OF 8 AT-28C64B PLASTIC PACKAGE 85°C/85% RELATIVE HUMIDITY OPERATING LIFE TEST LOT NUMBER HOURS DATE CODE PACKAGE TYPE SAMPLE SIZE NUMBER OF FAILUES AT INDICATED (168) (500) (1000) 4D1364 4D9508 28 SOIC 45 0 0 7K5050 7K9734 28 TSOP 78 0 0 0 0