MIL-PRF-19500/594B
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a.
Qualification inspection (see 4.2).
b.
Screening (see 4.3)
c.
Conformance inspection (see 4.4).
4.2 Qualification inspection. Qualification inspection shall be in accordance with MIL-PRF-19500.
4.2.1 Construction verification. Cross sectional photos from three devices shall be submitted in the qualification
report.
* 4.2.2 Group E qualification. Group E inspection shall be performed for qualification or re-qualification only. In
case qualification was awarded to a prior revision of the specification sheet that did not request the performance of
table II tests, the tests specified in table II herein that were not performed in the prior revision shall be performed on
the first inspection lot of this revision to maintain qualification.
* 4.3 Screening (JANS, JANTX, and JANTXV levels only). Screening shall be in accordance with table E-IV of
MIL-PRF-19500, and as specified herein. The following measurements shall be made in accordance with table I
herein. Devices that exceed the limits of table I herein shall not be acceptable.
Screen (see table E-IV
Measurement
of MIL-PRF-19500)
JANS level
JANTX and JANTXV levels
(1)
3c
Thermal impedance (see 4.3.2)
Thermal impedance (see 4.3.2)
4
Y1 at 10,000 G
Not applicable
9
Not applicable
Not applicable
11
Subgroup 2 of table I herein;
Subgroup 2 of table I herein;
VF2 and IR1
VF2 and IR1
12
See 4.3.1, method 1038 of MIL-STD-750,
See 4.3.1, method 1038 of MIL-STD-750,
test condition A, t = 96 hours
test condition A, t = 48 hours
13
Subgroups 2 and 3 of table I herein;
Subgroup 2 of table I herein;
ĆVF2 = ± .05 V (pk);
ĆVF2 = ± .05 V (pk);
ĆIR1 = 150 nA dc or 100 percent of the
ĆIR1 = 150 nA dc or 100 percent of the
initial value, whichever is greater
initial value, whichever is greater
(1) Thermal impedance shall be performed any time after sealing provided. Temperature cycling is performed
in accordance with MIL-PRF-19500, screen 3 prior to this thermal impedance.
4
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