第一圖的右邊 及第二圖都對

 

From: TGAsia [mailto:[log in to unmask]] On Behalf Of Eileen Xiang
Sent: Tuesday, July 22, 2014 1:16 PM
To: [log in to unmask]
Subject: [TGAsia] 关于导体/焊盘减少的判定

 

Hi all

在IPC-A-610E的10.3.1章节里关于导体/焊盘减少的判定定义：盘的长度或宽度的减少大于20%。

该怎么理解？为以下两种理解的哪一个？

1：

 

   或 

 

2：还是最大只能缺损如下阴影面积？

 

 

请各位不吝赐教！谢谢！

 

BR/Eileen

 

 

 

 


______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

TGAsia是一个为业界同仁提供技术交流的平台。您可以在论坛上提出技术问题，交流行业经验，寻找供应商等。请勿发送任何招聘，广告信息。（注：对于寻求供应商的邮件，请勿回复[log in to unmask],请私下和发件人联系）。如您需要退出该邮件论坛，请直接发送邮件至 [log in to unmask] ,谢谢。


______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________