Tel: (408) 441-0311 Fax: (408) 436-4200 AT-29C256 PEROM RELIABILI

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Tel: (408) 441-0311 Fax: (408) 436-4200 AT-29C256 PEROM RELIABILI

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ATMEL CORPORATION
Tel: (408) 441-0311 Fax: (408) 436-4200
AT-29C256 PEROM RELIABILITY DATA
125°C DYNAMIC OPERATING LIFE TEST CYCLE TEST 200°C RETENTION BAKE 125°C DYNAMIC LIFE TEST (PLASTIC) 125°C RETENTION BAKE (PLASTIC) PSIG PRESSURE 85°C/85% RELATIVE HUMIDITY OPERATING LIFE TEST This report generated from AT-29C256 reliability testing. This data applicable following device types same technology grouping defined MIL-M-38535 Appendix AT-29C257
JULY 2003
2325 Orchard Parkway Jose 95131
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AT-29C256 125°C DYNAMIC OPERATING LIFE TEST NUMBER 91899-3 06267 04358 132456-3 232397C 3A0917 3B1142 3B1140 3D0717 4B0890 A4C2076 DATE CODE 9B8933 0D9103 1A9105 1C9138 2C9233 3A9315 3B9336 3B9335 3D9351 4B9428 4C9443 SAMPLE SIZE TOTAL CKT-HRS(K) 80.0 76.0 105.0 77.0 154.0 78.0 131.0 79.0 115.0 80.0 250.0 NUMBER FAILURES (LEAKAGE)
FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 50°C AMBIENT CONFIDENCE ESTIMATE 1,225,000 DEVICE HOURS 1000 HOURS EXTRAPOLATION 50°C ARRHENNIUS EQUATION ACTIVATION ENERGY O.5eV 0.005% 1,000 HOURS FITS) 0.006% 1000 HOURS CONFIDENCE FITS) 0.01% 1000 HOURS CONFIDENCE (108 FITS)
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AT-29C256 200°C RETENTION BAKE NUMBER 132468 232397C 4B0890 DATE CODE 1C9140 2C9233 4B9428 SAMPLE SIZE FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 50°C AMBIENT CONFIDENCE ESTIMATE 333,000 DEVICE HOURS 0.21% 1,000 HOURS EXTRAPOLATION 50°C ARRHENNIUS EQUATION ACTIVATION ENERGY 0.5eV 0.0007% 1,000 HOURS FITS) 0.001% 1,000 HOURS CONFIDENCE FITS) 0.0023% 1,000 HOURS CONFIDENCE FITS) NUMBER FAILURES 1000
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Data cycling followed 200°C bakes were performed determine device endurance. addresses were cycled specified number times. parts were bakes then verified. results cycling tests shown below. device failures have been found.
CYCLE TEST RESULTS AT-29C256 Number 04358 132456-3 132468-1 234004-2 3D0717 4A0770 4B0890 4C1834 4C1870 4D0761 Date Code 1A9105 1C9138 1C9140 2D9246 3D9351 4A9413 4B9428 4C9444 4C9446 4D9450 Sample Size Cycles 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 Failures Bake Temp 200°C 200°C 200°C 200°C 200°C 200°C 200°C 200°C 200°C 200°C Bake Time
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AT-29C256 PLASTIC PACKAGE 125°C DYNAMIC OPERATING LIFE TEST
NUMBER 232332 232333F 233762 234541 234997 3A0081 3A0087A 3A0917EB 3B0450 3B0450BC 3B0452C 3B1237 3C0520 4A0770 4D0014 4D0761 4D1189
DATE CODE 2C9231 2C9232 2D9247 2D9303 3A9308 3A9313 3A9313 3B9318 3B9324 3B9324 3B9324 3B9332 3C9342 4A9413 4D9450 4D9450 4D9510
PLCC PDIP PDIP PLCC PDIP TSOP PLCC PLCC TSOP PLCC PLCC PDIP TSOP PLCC PLCC PLCC PLCC
SAMPLE SIZE
TOTAL CKT-HRS(K) 76.0 77.0 78.0 79.0 80.0 80.0 76.0 600.0 78.0 597.0 598.0 78.0 76.0 696.0 80.0 200.0 98.0
NUMBER FAILURES
FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 50°C AMBIENT CONFIDENCE ESTIMATE 3,647,000 DEVICE HOURS 0.02% 1,000 HOURS EXTRAPOLATION 50°C ARRHENNIUS EQUATION ACTIVATION ENERGY 0.5eV 0.001% 1,000 HOURS FITS) 0.001% 1,000 HOURS CONFIDENCE FITS) 0.002% 1,000 HOURS CONFIDENCE FITS)
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AT-29C256 PLASTIC PACKAGE 125°C RETENTION BAKE
NUMBER 232332 232333 232333F 233389 233762 234003 234609 3A0081 3A0087A 3A0917EB 3A0661 3B0450BC 3B0450 3B1237 3C0520 4A0770 4D0014
DATE CODE 2C9231 2C9231 2C9232 2C9241 2D9247 2D9248 2D9302 3A9313 3A9313 3B9318 3B9319 3B9324 3B9324 3B9332 3C9342 4A9413 4D9450
PLCC PLCC PDIP PDIP PDIP PDIP PLCC TSOP PLCC PLCC PLCC PLCC TSOP PDIP TSOP PLCC PLCC
SAMPLE SIZE
TOTAL CKT-HRS(K) 72.0 154.0 77.0 78.0 82.0 79.0 154.0 77.0 80.0 77.0 79.0 44.0 77.0 80.0 77.0 77.0 80.0
NUMBER FAILURES
FAILURE RATE TOTAL DEVICE HOURS BEST ESTIMATE 50°C AMBIENT 1,434,000 DEVICE HOURS 0.05% 1,000 HOURS
EXTRAPOLATION 50°C ARRHENNIUS EQUATION ACTIVATION ENERGY 0.5eV 0.002% 1,000 HOURS FITS) 0.002% 1,000 HOURS CONFIDENCE FITS) 0.006% 1,000 HOURS CONFIDENCE FITS)
CONFIDENCE ESTIMATE
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AT-29C256 PLASTIC PACKAGE PRESSURE TEST NUMBER FAILURE INDICATED HOURS (24) 2A9215 2C9231 2C9233 2D9303 3A9313 3A9318 3B9324 3B9324 3C9342 4A9413 PLCC PLCC PLCC PLCC TSOP PLCC TSOP PLCC TSOP PLCC (48) (72) (96)
DATE CODE
PACKAGE TYPE
SAMPLE SIZE
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AT-29C256 PLASTIC PACKAGE 85°C/85% RELATIVE HUMIDITY OPERATING LIFE TEST NUMBER DATE CODE PACKAGE TYPE SAMPLE SIZE NUMBER FAILURES INDICATED HOURS (168) 3A0081 3A0917EB 4B1853 3A9313 3A9318 4B9430 TSOP PLCC PLCC (500) (1000)

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