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August 2002

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Subject:
From:
"Croslin, Robert" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 26 Aug 2002 08:31:36 -0400
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My, it sounds like you need to take your layout engineer down to the shop
floor and introduce him to the solder touch up operators, then stand back
and let them tear him a new one.  In the meantime, you might wish to try the
services of SMT Plus.  We've used them for years and have yet to have a
touch up issue on any of our products.  A yearly subscription to their
libraries is very inexpensive.  I'd bet the cost to touch up only a few
boards would more than cover it.

http://www.smtplus.com

Bob Croslin
Nielsen Media Research

 -----Original Message-----
From:   My Nguyen [mailto:[log in to unmask]]
Sent:   Saturday, August 24, 2002 8:12 PM
To:     [log in to unmask]
Subject:        [TN] Pad Geometry design standards/rules

Ladies and Gentlemen:

Does JEDEC have any rules, standards, or guideline for
component pad-geometry?  I know IPC has it (IPC-782)
but how about JEDEC?

It would be nice if I can compare the two.  Our
lay-out Engineer followed none of them which gave us
too many problems, ie. component overhang, solder
open, bridging, tombstone, etc.

Your help is always greatly appreciated!

Stacy

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