IPC-A-610D Chinese.pdf - 第287页
9-4 9-5 9-6 B A A A = 0.25 mm [0.00984 in] 9-7 9-3 IPC-A-610D
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W
T
9-1
W
50% W
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9-2
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9-2 IPC-A-610D
9-4
9-5 9-6
B
A
A
A = 0.25 mm [0.00984 in]
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9-3IPC-A-610D
9-8
10 pf
9-9
10 pf
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9-10
9-4 IPC-A-610D
9-4 9-5 9-6 B A A A = 0.25 mm [0.00984 in] 9-7 9-3 IPC-A-610D