MIL-PRF-19500/588A
4.4 Conformance inspection. Conformance inspection shall be in accordance with MIL-PRF-19500.
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 the applicable steps of table III herein.)
4.4.2 Group B inspection. Group B inspection shall be conducted in accordance with the conditions specified for subgroup testing in
appendix E, table IVa (JANS) and table IVb (JANTX and JANTXV) of MIL-PRF-19500. Electrical measurements (end points) and delta
requirements shall be in accordance with the applicable steps of table III herein.
4.4.2.1 Group B inspection, appendix E, table VIa (JANS) of MIL-PRF-19500.
a.
Subgroup 3:
Condition for bond strength is condition A.
b.
Subgroup 4:
Condition for intermittent operation life is as follows:
Condition D, 2,000 cycles. The heating cycle shall be one minute minimum.
c.
Subgroup 5:
Condition for accelerated steady-state reverse bias is as follows:
Condition A, VCE = 80 percent of rated, TC = +150 C +0 C, -15 C, t = 120 hours. Read and record VBR(CES)
(pre and post) at IC = 1 mA. Read and record ICES (pre and post), in accordance with table III.
d.
Subgroup 5:
Condition for accelerated steady-state gate stress is as follows:
Condition B, VGE = 80 percent of rated, TJ = +175 C, t = 24 hours.
e.
Subgroup 6:
Condition for thermal impedance, see 4.5.2.
4.4.2.2 Group B inspection, appendix E, table VIb (JANTX and JANTXV) of MIL-PRF-19500.
a.
Subgroup 3:
Condition for intermittent operation life is as follows:
Condition D, 2,000 cycles. The heating cycle shall be one minute minimum.
b.
Subgroup 4:
Condition for bond strength is condition A.
c.
Subgroup 6: Not applicable.
4.4.3 Group C inspection. Group C inspection shall be conducted in accordance with the conditions specified for subgroup testing in
appendix E, table VII of MIL-PRF-19500. Electrical measurements (end points) and delta requirements shall be in accordance with the
applicable steps of table III herein.
4.4.3.1 Group C inspection, appendix E, table VII of MIL-PRF-19500.
a.
Subgroup 2: Condition for terminal strength (tension) is test condition A, weight = 10 pounds, time = 15 seconds.
b.
Subgroup 6: Condition for intermittent operation life is as follows:
Condition D, 6,000 cycles. The heating cycle shall be one minute minimum.
4.4.4 Group E inspection. Group E inspection shall be conducted in accordance with MIL-PRF-19500 and table II herein.
4.5 Methods of inspection. Methods of inspection shall be as specified in the appropriate tables and as follows.
4.5.1 Pulse measurements. Conditions for pulse measurement shall be as specified in section 4 of MIL-STD-750.
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