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AT-89C52
PLASTIC PACKAGE
150°C RETENTION BAKE
LOT
NUMBER
DATE
CODE
SAMPLE
SIZE
TOTAL
NUMBER
PKG
CKT-HRS(K) OF FAILURES
5J3756-1
5J3757-1
5J0603
5J0603
44 PLCC 100
44 PLCC 100
100.0
100.0
0
0
FAILURE RATE
TOTAL DEVICE HOURS
BEST ESTIMATE
50°C AMBIENT
3,867,000 DEVICE HOURS
λ = 0.02% PER 1000 HOURS
EXTRAPOLATION TO 50°C VIA
ARRHENNIUS EQUATION AND
ACTIVATION ENERGY OF 0.5eV
λ = 0.0003% PER 1,000 HOURS (3 FITS)
CONFIDENCE ESTIMATE
λ 60 = 0.0004% PER 1000 HOURS
60% CONFIDENCE (3 FITS)
λ 90 = 0.001% PER 1000 HOURS
90% CONFIDENCE (9 FITS)
ATMEL [ ATMEL ]
