MIL- STD-883F 2004 TEST METHOD STANDARD MICROCIRCUITS - 第59页

MIL-STD-883F MET HOD 1010.8 18 June 2004 3 Figure 1010- 1 An example of Temperatur e Cycli ng Test Condi tion C. * *

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MIL-STD-883F
METHOD 1010.8
18 June 2004
2
TABLE I. Temperature-cycling test conditions
.
Test condition temperature (°C)
Step
Minutes
A
B
C
D
E
F
1
Cold
>
10
-55 +0
-10
-55 +0
-10
-65 +0
-10
-65 +0
-10
-65 +0
-10
-65 +0
-10
2
Hot
>
10
85 +10
-0
125 +15
-0
150 +15
-0
200 +15
-0
300 +15
-0
175 +15
-0
NOTE: Steps 1 and 2 may be interchanged. The load temperature may exceed the
+ or - zero (0) tolerance during the recovery time. Other tolerances shall
not be exceeded.
3.2 Examination
. After completion of the final cycle, an external visual examination of the marking shall be performed
without magnification or with a viewer having a magnification no greater than 3X. A visual examination of the case, leads, or
seals shall be performed at a magnification between 10X and 20X (except the magnification for examination shall be 1.5X
minimum when this method is used for 100 percent screening). This examination and any additional specified
measurements and examination shall be made after completion of the final cycle or upon completion of a group, sequence,
or subgroup of tests which include this test.
3.3 Failure criteria
. After subjection to the test, failure of one or more specified end-point measurements or examinations
(see 4.d.), evidence of defects or damage to the case, leads, or seals or illegible markings shall be considered a failure.
Damage to the marking caused by fixturing or handling during tests shall not be cause for device rejection.
4. SUMMARY
. The following details shall be specified in the applicable acquisition document:
a. Special mounting, if applicable (see 3).
b. Test condition letter, if other than test condition C (see 3).
c. Number of test cycles, if other than 10 cycles (see 3).
d. End-point measurements and examinations (see 3.1) (e.g., end-point electrical measurements, seal test (method
1014), or other acceptance criteria).
MIL-STD-883F
METHOD 1010.8
18 June 2004
3
Figure 1010-1 An example of Temperature Cycling Test Condition C.
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MIL-STD-883F
METHOD 1010.8
18 June 2004
4
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