IPC-D-859.pdf - 第80页
IPC-859-6-18 Figure 6–18 Added test circuitry—via test 3 2 1 3 2 1 G3 G2 G1 I1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 H3 H2 F3 F2 H1 F1 D1 D2 D3 A1 A2 A3 B1 B3 B2 …
IPC-859-6-17
Figure 6–17 Test Coupons—top conductor pattern
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IPC-859-6-18
Figure 6–18 Added test circuitry—via test
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IPC-859-6-19
Figure 6–19 Added test circuitry—capacitance test
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