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Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 14 Oct 1998 14:54:29 -0400 |
Content-Type: | text/plain |
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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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