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March 2008

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Subject:
From:
"Haynes, Kim" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Haynes, Kim
Date:
Thu, 13 Mar 2008 09:14:24 -0500
Content-Type:
text/plain
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text/plain (74 lines)
Good-morning Peter,

There are several companies who advertise the ability to build
interposers between various packages and PCB configurations.  I found
these three in one of my PCB magazines in just a few minutes.  Ironwood
Electronics at http://www.ironwoodelectronics.com, Logical Systems at
http://www.logicalsys.com/, or Emulation Technology at
http://www.emulation.com are three choices.  There are a lot of other
shops that also do this sort of thing.  Emulation Technology and
Ironwood have been around for a long time.  I have not used one of these
shops for interposers, we usually build out own when we run into this
sort of issue.  I have used ET and Ironwood for special sockets and
clips for live in-circuit testing.  I am sure some other technetters may
be able to share their expeiences.

Good luck and smooth sailing,
Kim Haynes
Interface and Clock Products
High-Speed Serial Link Applications
Texas Instruments, Inc.
214-567-2057  Telephone


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Peter Wong
Sent: Wednesday, March 12, 2008 7:01 PM
To: [log in to unmask]
Subject: [TN] Adapter board/socket for TQFP 176 pin

I have a customer whose boards were designed with a 176 pin TQFP with a
0.4 mm lead pitch.  Problem is, the parts they specified were 176 pin
LQFP with 0.5 mm pitch.

 

I've seen references on TechNet before to companies that can provide
adapter boards/sockets to allow us to use these fabs until they get
re-designed but I can not recall who they were.  I've tried searching
the archives with no success.

 

Can anyone help me?

 

Thanks

Peter


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