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November 1997

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Subject:
From:
George Franck <[log in to unmask]>
Reply To:
TechNet Mail Forum.
Date:
Thu, 6 Nov 1997 15:36:43 -0500
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'Netters!

Here is a theoretical question for you!

Let's assume an entirely hypothetical situation where a moderate number of
un-coated Assembled Circuit Cards were exposed to Ethlyene Glycol.  Just for
arguements sake, lets say a cooling system dumped it's coolant on the first
floor above a hypothetical basement laboratory.  The hypothetical Ethlyene
Glycol dripped into the theoretical basement and filled up the typical
anti-static bins where the hypothetical Assembled Circuit Cards are
typically found.

<wink>

How would you clean these boards up?  Would you need to?
I assume there would be an impact on the SIR, but not on the ionic
contamination levels.  How could you tell when the boards were clean?
Isn't Ethlyene Glycol a major part of many "No-Clean" solder fluxes?
How could these cards be demonstrated to be fine?


George Franck
"Theoretically, my hypothetical opinions are typically not necessarily the
same as those of my postulated company."

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