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Subject:	Re: GEN: Heard of Interconnect Stress Testing (IST)?
From:	[log in to unmask] (D. Rooke)
Date:	Wed, 20 Nov 1996 22:41:28 -0500 (EST)
Content-Type:	text/plain
Parts/Attachments:	text/plain (49 lines)

Sorry for the delay but I've been away for the past two days. I am
responding, albeit belatedly to the original posting attached.

We have been using IST testing for a number of years here at Circo Craft. It
has become an indispensable tool for assessing reliability of products and
is used extensively and routinely for validating process changes PRIOR to
implementation. It has the benefit of having a reduced cycle time for
analysis, but just as important, technicians can stop the process before
catastrophic failure. In doing so we can assess the ONSET of failure to
determine root cause of the problem. We have correlated IST versus
traditional thermocycling and have mathematically correlated the data results.

Dave Rooke
Circo Craft - Pointe Claire
____________
>Has anyone heard of a test method for PWB process evaluation called 
>Interconnect Stress Test (IST).  Have you tried it?  What do you think
>about its virtues/shortcomings?
>
>Gary P.
>---
>                                  Gary D. Peterson
>    _/_/_/   _/    _/  _/        SANDIA NATIONAL LABORATORIES     _/_/_/
>   _/       _/_/  _/  _/        P.O. Box 5800, M/S 0503            _/_/
>  _/_/_/   _/ _/ _/  _/        Albuquerque, NM 87185-0503     _/_/_/_/_/_/
>     _/   _/  _/_/  _/        Phone: (505)844-6980           _/  _/_/  _/
>_/_/_/   _/    _/  _/_/_/_/  FAX: (505)844-2925             _/  _/_/  _/
>                            E-Mail: [log in to unmask]        _/_/_/
>
>
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