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Subject:
From:
"Aric Parr" <[log in to unmask]>
Date:
23 Oct 96 07:54:18 -0500
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     why do you bake them? Repeated bakes affect solderability.
     
     PCBs from a "good" supplier, stored in a temperature/humidity 
     controlled plant, and used promptly do not require baking.
     
     Cheap PCBs stored in an unairconditioned warehouse at high 
     temperature/humidity may require baking. If you do this, what is the 
     actual cost savings????


______________________________ Reply Separator _________________________________
Subject: assly:baking of hasl pcbs
Author:  [log in to unmask] at internet
Date:    10/23/96 6:50 AM


Date : 23/10/96 11:38
Msg From: PROCESS ENGINEERING
hello
is there any criterion for baking of HASL PCBs . actually  as per 
customers guidelines we have to bake the HASL pcbs prior to their use 
in assembly line. kindly suggest any standard or general practice 
i.e. the temperature & the duration for which the pcbs should be 
baked.
if baked pcbs are to be used after a gap of a day or a week, should 
they be baked again? or they can be stored in controlled envoirnment 
kindly comment
     
regards
nalin
altos india limited
 e-mail<[log in to unmask]> 
 e-mail<[log in to unmask]>
     
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