no special requirements in IPC standards. You need to make according to

customer's spec or Gerber file. 







>>> "John Ling (Jiazhao Ling)" <[log in to unmask]> 2007-11-12 16:40

>>>

我们也遇到同样的问题。一般是根据企业的工艺评审标准来制订。

    Thanks!

    John Ling

    Loud China 

   

  ----- Original Message ----- 

  From: sungaixian_007 

  To: [log in to unmask] 

  Sent: Monday, November 12, 2007 4:22 PM

  Subject: Re: [TGA] Regarding PCB Issue







  拘我所了解,IPC-2221里面的确没有此方面的规定,我们现在所使用的也都是客户的现有的要求

  .



  在2007-11-12，"Sigen Ding" <[log in to unmask]> 写道：





    一般情形， 

    顾客在发送技术资料的（GERBER)文件的时候会明确声明PCB的大小、厚度、材料和邮票孔的大小，以及邮票孔的大小与孔与孔间距。 

    有些顾客会在技术说明文件里备注清楚，不同的PCB要求也是不一样的 

    建议直接与顾客沟通，获取详细信息

    _____________________________________________________ 

    Sigen Ding | Quality Engineer | APC-MGE Critical Power and Cooling

Services Division, Schneider Electric 



    No. 1678 Jixian Road, Tongan District, Xiamen, China 361100  *:

[log in to unmask] 



    (Tel) +86 592 757 2773| (Mobile) +86  132 7696 8861 | (Fax) +86 592

757 2899 | 









          wzhao <[log in to unmask]> 

          Sent by: TGAsia <[log in to unmask]> 

          2007-11-12 10:42 



                Please respond to

                Asia Committe Task Group Forum <[log in to unmask]>; Please

respond to

                wzhao <[log in to unmask]> 



         To [log in to unmask]  

                cc  

                Subject [TGA] Regarding PCB Issue 



                



         







    Hi All, 

      

    I have a PCB issue, pls. help me to solve it. 

      

    关于PCB邮票孔方面的问题: 

      

    在IPC相关资料中有没有以下问题的定义: 

      

    1.PCB的大小、厚度、材料和邮票孔的大小之间的关系 

      

    2.邮票孔的大小与孔与孔间距怎么来确定呢? 

      

    Thanks very much & B.rgs, 

      

    Will Zhao 

      

    Keytronic Computer Peripherals(Shanghai) Co.LTD. 

      

    E-mail: [log in to unmask] 









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