AT-TINY12 Datasheet, PDF (6/6 Pages) ATMEL Corporation – 121°C/15PSG PRESSSURE POT TEST

PAGE 6 OF 6
AT-TINY12/12L
PLASTIC PACKAGE
125°C DYNAMIC OPERATING LIFETEST
LOT
NUMBER
DATE
CODE
SAMPLE
SIZE
9B0218
9B0218 100
0B3356
0B0044 100
0C1852-2 0C0045 100
2G7550A 2G0241 100
2G7691-1 2G0241 100
TOTAL CKT
HRS (K)
100.0
100.0
100.0
100.0
100.0
NUMBER OF FAILURES
AT INDICATED HOURS
(168) (500) (1000)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TOTAL DEVICE HOURS
BEST ESTIMATE
50°C AMBIENT
CONFIDENCE ESTIMATE
FAILURE RATE
500,000 DEVICE HOURS
λ
= 0.1% PER 1,000 HOURS
EXTRAPOLATION TO 50°C VIA ARRHENNIUS
EQUATION AND ACTIVATION ENERGY OF
0.5eV
λ
= 0.005% PER 1,000 HOURS (47 FITS)
λ
60 = 0.006% PER 1,000 HOURS
60% CONFIDENCE (62 FITS)
λ
90 = 0.01% PER 1,000 HOURS
90% CONFIDENCE (156 FITS)