MIL-PRF-19500/317R
4.4.2.2 Group B inspection, (JAN, JANTX, and JANTXV) Separate samples may be used for each step. In the
event of a group B failure, the manufacturer may pull a new sample at double the sample size from either the failed
assembly lot or from another assembly lot from the same wafer lot. If the new assembly lot option is exercised, the
failed assembly lot shall be scrapped.
Step
Method
Condition
1
1026
applied to the device and ambient temperature shall be adjusted to achieve TJ ≥ +150°C.
n = 45, c = 0. The sample size may be increased and the test time decreased as long as the
devices are stressed for a total of 45,000 device hours minimum and the actual time of test is at
least 340 hours.
Blocking life: TA = +150°, VCB = 80 percent of rated voltage, 48 hours minimum.
2
1048
n = 45 devices, c = 0.
High-temperature life (non-operating), t = 340 hours, TA = +200°C. n = 22, c = 0.
3
1032
4.4.2.3 Group B sample selection. Samples selected from group B inspection shall meet all of the following
requirements:
a. For JAN, JANTX, and JANTXV samples shall be selected randomly from a minimum of three wafers (or from
each wafer in the lot) from each wafer lot. For JANS, samples shall be selected from each inspection lot. See
MIL-PRF-19500.
b. Shall be chosen from an inspection lot that has been submitted to and passed group A, subgroup 2,
conformance inspection. When the final lead finish is solder or any plating prone to oxidation at high
temperature, the samples for life test (subgroups B4 and B5 for JANS, and group B for JAN, JANTX, and
JANTXV) may be pulled prior to the application of final lead finish.
4.4.3 Group C inspection. Group C inspection shall be conducted in accordance with the tests and conditions
specified for subgroup testing in table E-VII of MIL-PRF-19500, and in 4.4.3.1 (JANS) and 4.4.3.2 (JAN, JANTX, and
JANTXV) herein for group C testing. Electrical measurements (end-points) shall be in accordance with table I,
subgroup 2. Delta requirements shall be in accordance with table III herein.
4.4.3.1 Group C inspection, table E-VII (JANS) of MIL-PRF-19500.
Subgroup
Method
Condition
C2
2036
Test condition E; not applicable for U, UA, and UB devices.
C6
1026
device and ambient temperature shall be adjusted to achieve TJ ≥ +150°C.
The sample size may be increased and the test time decreased as long as the devices are
stressed for a total of 45,000 device hours minimum, and the actual time of test is at least
340 hours. n = 45, c = 0.
14
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