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March 2010

TGAsia@IPC.ORG

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Asia Committe Task Group Forum <[log in to unmask]>, yhzhou <[log in to unmask]>
Date:
Sat, 27 Mar 2010 11:18:51 +0800
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见IPC-A-600G中第39页,有介定阻焊上PAD的标准
  ----- Original Message ----- 
  From: 朱慧 
  To: [log in to unmask] 
  Sent: Wednesday, March 24, 2010 11:15 AM
  Subject: [TGAsia] PCB阻焊剂的涂覆


  大家好!

        我想询问一个有关PCB阻焊剂涂覆的问题!

        有关PCB阻焊剂的涂覆在IPC-A-610D中有相关描述,但有关阻焊剂涂覆时覆盖焊盘的要求有谁知道相应标准及出处呢?(意思也就是说,供应商送来的基板在印刷阻焊剂时出现了少许偏位,出现了覆盖少许焊盘的现象,但不影响焊接的情况下现怎样判定覆盖多少可以接受?或是直接拒收?)

  以上

        劳驾知悉者!

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