MIL-PRF-19500/435M
4.3 Screening (JAN, JANTX, JANTXV, and JANS levels only). Screening shall be in accordance with appendix E,
table E-IV of MIL-PRF-19500, and as specified herein. The following measurements shall be made in accordance
Screen
Measurement
table E-IV of
JANS level
JANTXV and JANTX level
1a
Required
Not required
1b
Required
Required (JANTXV only)
2
Not required
Not required
3a
Required
Required
3b
Not applicable
Not applicable
(1) 3c
Required (see 4.3.2)
Required (see 4.3.2)
4, 5, and 6
Not applicable
Not applicable
8
Required
Not required
Required on Nom VZ > 10 V, IR1 and VZ
9
Not applicable
Required on Nom VZ > 10 V
10
Not applicable
11
Required
Required
ĆIR1 ≤ 100 percent of initial reading or 10
IR1 and VZ
nA whichever is greater. ĆVZ ≤ 2 percent of
initial reading.
12
Required, see 4.3.3
Required,
t = 240 hours.
See 4.3.3, t = 48 hours
Subgroup 2 of table I herein; ĆIR1 ≤ 100
(2) 13
Required
Subgroup 2 of table I herein; ĆIR1 ≤ 100
percent of initial reading or 10 nA
whichever is greater; ĆVZ ≤ 2 percent of
percent of initial reading or 10 nA whichever
is greater; ĆVZ ≤ 2 percent of initial reading.
initial reading.
15
Required
Not required
16
Required
Not required
(1) Shall be performed anytime after temperature cycling, screen 3a; TX and TXV levels do not need to be repeated
*
in screening requirements.
(2) PDA = 5 percent for screen 13, applies to ĆIR1, ĆVZ, IR1 and VZ (JANS only).
4.3.1 Screening (JANHC and JANKC). Screening of JANHC and JANKC die shall be in accordance with appendix
G of MIL-PRF-19500.
4.3.1.1 JAN product. JAN product will have temperature cycling and thermal impedance testing performed in
accordance with MIL-PRF-19500, JANTX level screening requirements.
4.3.2 Thermal impedance. The thermal impedance measurements shall be performed in accordance with method
3101 or 4081 as applicable of MIL-STD-750 using the guidelines in that method for determining IM, IH, tH, tMD (and
4.3.3 Free air power burn-in conditions. Power burn-in conditions are as follows (see 4.5.4 herein): IZ(min) =
IZ(PCB). TA = 75°C maximum. Test conditions shall be in accordance with method 1038 of MIL-STD-750, condition
B. Adjust IZ or TA to achieve the required TJ. TJ = 125°C minimum. With approval of the qualifying activity and
preparing activity, alternate burn-in criteria (hours, bias conditions, TJ, mounting conditions) may be used for JANTX
and JANTXV quality levels. A justification demonstrating equivalence is required. In addition, the manufacturing
site's burn-in data and performance history will be essential criteria for burn-in modification approval.
10
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