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July 2011

TGAsia@IPC.ORG
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Subject:
Re: 答复: [TGAsia] Esd 静电手环
From:
Eileen Xiang <[log in to unmask]>
Reply To:
Asia Committe Task Group Forum <[log in to unmask]>, Eileen Xiang <[log in to unmask]>
Date:
Sat, 16 Jul 2011 14:29:14 +0800
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text/plain
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text/plain (1 lines) 
Hi all
Now I have one question for Bow and Twist (Percentage) calculation per IPC-TM-650, 2.4.22
For nonrectangular PCBA, since it has been mounted with components on both sides, it can’t be placed on surface plate, how to test bow and twist?
And for nonrectangular board, how to calculate L,W and D?

Hope someone could reply my question.

Thanks!
BR/Eileen

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