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February 2004

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Subject:
Re: Board warpage?
From:
[log in to unmask]
Reply To:
(Designers Council Forum)
Date:
Mon, 16 Feb 2004 15:42:53 EST
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text/plain (31 lines) 
Ray,

There may be other references but IPC 6012 section 3.4.4 addresses bow &
twist.

The method to determine it is IPC -TM-650, method 2.4.22, which describes 4
procedures to determine bow/twist of either cut to size panels or finished
rigid PCB.

Thanks much!

Charlie Cobb
Regional Manager

Dynamic & Proto Circuits Inc.

Cell - 860-830-9586

Fax - 416-352-0125

http://www.dapc.com

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