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IPC-4552B-2021 EN印制板化学镀镍 浸金(ENIG)镀覆性能规范 英文版

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onРFigure 3-47 Location 7 Worked Example – Investigation .................................................. 34Р Rating Is a Level 0 at 1000X ........................ 37 Table 4-1 Suggested Fabricator Qualification Plan ....... 43РFigure 3-48 Product Rating for the Worked Table 4-2 C=0 Sampling Plan per Lot Size .................. 44Р Example ......................................................... 37РРР viiРIPC-4552B April 2021РРР This Page Intentionally Left BlankРРРviii

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