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Subject:	Re: PWB ASSEMBLY BURN-IN TEST
From:	Werner Engelmaier <[log in to unmask]>
Reply To:	TechNet E-Mail Forum.
Date:	Tue, 16 Oct 2001 11:35:21 EDT
Content-Type:	text/plain
Parts/Attachments:	text/plain (20 lines)

Hi Jim,
While I would strongly question the purpose of a "burn-in" test comprising160 
HRS @ 125ºC and 352 HRS @100ºC, neither will damage the PWB [think of PWB 
bakes] or the SJs [the SJs will coarsen in their grain-structure--which they 
would do anyway in about onne year on the shelf or in service--and the IMC 
layers will grow some, but without any real negative effects].
What is your customer thinking? Well, maybe they not thinking at all.

Werner Engelmaier

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