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Subject:	Re: Twist & Bow
From:	"Sauer, Steven T." <[log in to unmask]>
Reply To:	TechNet E-Mail Forum <[log in to unmask]>, Sauer, Steven T.
Date:	Wed, 6 Oct 2004 09:51:24 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (61 lines)

There are 3 procedures defined in revision C of IPC-TM-650 2.4.22, titled
"Bow and Twist".
This test method is located in the appendix of IPC-A-600, IPC/EIA J-STD-001
and IPC-6012 to name a few.
Hope this helps...

Steve Sauer
Sr. Manufacturing Engineer
Northrop Grumman, Electronic Systems
Xetron
Cincinnati, OH
513-881-3368 (v)
513-881-3298 (f)

-----Original Message-----
From: Karnwal, Pankaj [mailto:[log in to unmask]]
Sent: Wednesday, October 06, 2004 8:14 AM
To: [log in to unmask]
Subject: [TN] Twist & Bow


Dear Technetters hello,

Any body have the procedure for measuring the twist & bow as IPC 610 B says
the .75% allowed for SMD populated module.
how we measure this .75 % , in respect to what ?

BR
Pankaj Karnwal
Jr. Engineer QA

Barco Electronics System  (P) Ltd.
mailto:[log in to unmask]
www.barco.com



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