4个回应

  1. 黄俊龙
    2018/08/01

    感谢好文分享

    Reply

  2. Louis
    2018/08/01

    熊大~
    记得CLASS3不是最严格的吗?
    查了一下定义如下所示:
    Class 1 — General Electronic Products
    Class 2 — Dedicated Service Electronic Products
    Class 3 — High Performance Electronic Products

    另外刚翻了IPC-A-610D的PQFN”8.2.13 Plastic Quad Flat Pack – No Leads (PQFN)”
    并没看到F/H的相关规定说:\
    看起来一般好像只需要吃满底部就行了

    Reply

    • 188金宝搏苹果下载
      2018/08/03

      Louis,
      You are right and I will fix it as soon as I can.
      Thanks for the reminder.

      Reply

  3. JA
    2018/08/01

    好精采的不良分析
    很严谨的态度
    这背后需要浅在许多需要对于制程与零件的知识与观念
    开眼界了

    Reply

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