MIL-PRF-19500/526H
4.4.1 Group A inspection. Group A inspection shall be conducted in accordance with MIL-PRF-19500 and table I
herein. End-point electrical measurements shall be in accordance with table I, subgroup 2 herein.
4.4.2 Group B inspection. Group B inspection shall be conducted in accordance with the tests and conditions
specified for subgroup testing in 4.4.2 for JAN, JANTX, and JANTXV group B testing. 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 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. Electrical measurements (end-points) shall be in accordance
with table I, subgroup 2 herein.
Step
Method
Condition
1
1026
Steady-state life: Test condition B, 1,000 hours minimum, VCB = 10 V dc, power
shall be applied to the device to achieve TJ = +150°C minimum; n = 45, c = 0.
Blocking life, TA = +150°C, VCB = 80 percent of rated voltage, 48 hours minimum.
2
1048
n = 45, c = 0.
High-temperature life (non-operating), TA = +200°C, t = 340 hours, n = 22, c = 0.
3
1032
4.4.2.1 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. See MIL-PRF-19500.
b.
Shall be chosen from an inspection lot that has been submitted to and passed table I, 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 (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 conditions specified for
subgroup testing in table E-VII of MIL-PRF-19500. Electrical measurements (end-points) shall be in accordance with
table I, subgroup 2 herein.
Subgroup
Method
Condition
C2
2036
Test condition A; weight = 10 pounds; t = 15 s.
C5
3131
C6
Not applicable.
6
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