TO Steve "Guess I'll bake more often now..." Gregory
Perhaps you need to either bake your supplier or get a new one!?  We did the
former in 1991 and I have not seen a blistered board in this plant since
then.  Comments, Steve?  (as if I had to ask  :)  )

regards,
Bev Christian
Nortel Networks

> -----Original Message-----
> From: Stephen R. Gregory [SMTP:[log in to unmask]]
> Sent: Monday, August 30, 1999 4:37 PM
> To:   [log in to unmask]
> Subject:      [TN] Delamination and Blisters after Wave, a follow-up...
> 
> Hi ya'll!
> 
> Well, I waved a dozen more of the boards that blistered on me Saturday.
> This 
> time I "baby-sat" the boards from baking to wave. I baked them at 125º C.
> for 
> 3-hours, and waved them within 2-hours after baking...no blisters this
> time.
> 
> They were the same datecode as the ones that blistered on Saturday (9915)
> and 
> even a few of them had a 9831 datecode...but nada blisters. I used the
> exact 
> same profile I used Saturday when I waved em' too...
> 
> Hmmmmmm...
> 
> I've got a digital camera and if anyone wants to see the blisters I got on
> 
> Saturday, I can send ya' a picture.
> 
> From the responses I got from a number of people and from a lot of the 
> messages I read in the archives on this subject, if I were a betting man,
> I 
> woulda bet that the boards would have blistered on me today...but they 
> didn't...
> 
> -Steve "Guess I'll bake more often now..." Gregory-
> 
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