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MIL-PRF-55110 Printed Wiring Board, Rigid, General Specification ForThis specification establishes the performance and qualification requirements for rigid single??sided, double??sided, and multilayered printed wiring boards with or without plated through holes \(see 6.1\). Verification is accomplished through the use of one of two methods of product assurance \(QPL or QPL/QML\). Detail requirements, specific characteristics, and other provisions which are sensitive to the particular intended use are specified in the applicable master drawing.

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MIL­PRF­55110G
APPENDIX A
table A­II tables A­Il TABLE A­II
TABLE A­II. Qualification inspection.
Test specimen 1/
Requirement
Method
Notes
Inspection
Paragraph
paragraph
MTR
CTR
Visual and dimensional:
Acceptability
PWB
PWB
Microsection:
AB­12
A­3
As received
2/
2/
Registration (method II)
Chemical:
PWB
PWB
Cleanliness
3/
3/
Resistance to solvents
Physical:
PWB
PWB
Bow and twist
C­5
J­1 & J­2
Plating adhesion
B­2
Rework simulation
Solderability
4/
A­4 & B­4
AB­10
Hole
D­2 & D­6
Surface 5/
5/
C­1 & C­4
Surface peel strength
A­1 & B­6
AB­8 & AB­13
Thermal stress
6/
Electrical:
7/
D­3
H­1, ­2, & ­3
Circuit continuity
E­3
H­1, ­2, & ­3
Circuit shorts
E­1
8/
Dielectric withstanding voltage
Environmental:
8/
E­1
Moisture and insulation resistance
D­3
Thermal shock
1/
See A.4.5.2 for qualification test specimen description. MTR designates manufacturer's test routine and CTR
designates the certified test laboratories test routine. The reference "PWB" in a column means inspect all
features, holes, and patterns in zones A, B, and C of a qualification test specimen with the exception that
conductor spacing and width on test coupon E­5 shall not be evaluated in zone C. For column MTR, when a test
coupon is referenced (e.g. AB­10), only one of the two coupons (9 of 18 available holes) shall be inspected,
whereas for column CTR, when an individual test coupon designation is referenced (e.g. D­3) means inspect the
specified test coupon. See qualification test specimen master drawing for test coupon design.
2/
Type 3 only. See A.4.8.2.4.1 for registration sample units and microsectioning details. Test coupons AB­8 and
AB­13 (column MTR) or A­1 and B­6 (column CTR) can be used to meet the diagonal corner requirement.
3/
The minimum number of samples shall be at least one sample for each solution specified by the applicable test
method (i.e., one sample for each solution required).
4/
Test coupons AB­10 (36 holes from four specimens) shall be used for the MTR routine; test coupons A­4 and
B­4 (36 holes from two specimens) shall be used for the CTR routine.
5/
Type 1 only.
6/
Use coupon closest to the corner on MTR routine. One of the test coupons shall be microsectioned in the
qualification test specimen's length direction and the other shall be microsectioned along the qualification test
specimen's width direction.
7/
When circuit continuity verification is performed manually, the current shall not be in excess of 1.5 amperes and
the time of application shall not exceed 30 seconds.
8/
The DWV test shall be performed after the MIR test.
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