MIL-PRF-19500/391N
TABLE III. Group E inspection (all quality levels) - for qualification and re-qualification only.
Inspection
Qualification
Method
Conditions
Subgroup 1
45 devices
c=0
1051
Test condition C, 500 cycles.
Temperature cycling
(air to air)
Hermetic seal
Fine leak
1071
Gross leak
See table I, subgroup 2 herein.
Electrical measurements
Subgroup 2
45 devices
c=0
1037
Intermittent life
VCB = 10 V dc, 6,000 cycles.
Electrical measurements
See table I, subgroup 2 herein.
Subgroups 4
15 devices,
c=0
Thermal resistance
3131
RθJSP(IS) can be calculated but shall be measured once
in the same package with a similar die size to confirm
calculations (may apply to multiple specification sheets).
RθJSP(AM) need be calculated only.
Thermal impedance curves
See table E-IX of MILPRF19500, subgroup 4.
Sample size
N/A
Subgroups 5
Not applicable
*
Subgroup 6
11 devices
c=0
ESD
1020
Subgroup 8
45 devices
c=0
Reverse stability
1033
Condition B.
21
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