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October 1998

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Subject:
From:
Bev Christian <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 14 Oct 1998 14:54:29 -0400
Content-Type:
text/plain
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text/plain (71 lines)
Doug,
It is an electrical power cycling test invented by someone at Nortel, if I
am not mistaken, sometime in the 80's.  The technology was sold off to a
little stand-alone company in Ottawa, Ontario.  Where it went after that, I
do not know.  I know that Via Systems Canada (the old Circo Craft) have a
set up.

Essentially a thermal stress is applied by resistance heating an array of
PTH's.  Coupons are cycled until failure occurs.   These results have been
correlated with the pass/fail criteria of the thermal shock test in
MIL-P-55110C.  You can get results in about 20 hours, rather than 1000's of
cycles that take some large fraction of an hour each.  That's all I know.

Good luck,
Bev Christian
Nortel

> ----------
> From:         Doug Jeffery[SMTP:[log in to unmask]]
> Sent:         Wednesday, October 14, 1998 9:01 AM
> To:   [log in to unmask]
> Subject:      [TN] ICT for bare boards
>
> Technet,
>
> Has anyone heard of "ICT for bareboards and what does it stand for?
>
> Recently this testing techneque was laid on one of my sales reps.  I
> thought they were referring to ICT or in circuit testing done at the
> assembly level. He insists that they were referring to bare board
> testing beyond opens and shorts.
>
> Does anyone know of this testing and where I can find information about
> it?
>
> .
>
> Douglas C. Jeffery
> Pre-Production Engineering Manager
> Electrotek, Inc.
> PH: 414-762-1390
> Fax: 414-762-1510
> Email: [log in to unmask]
>
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