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February 1998

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Subject:
Re: Depression mark during soldermask exposing
From:
Wayne Gitlitz <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 23 Feb 1998 08:24:39 -0800
Content-Type:
text/plain
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text/plain (44 lines) 
     Do you mean the modling affect from soft mask or vacuum
     to high????


______________________________ Reply Separator _________________________________
Subject: [TN] Depression mark during soldermask exposing
Author:  "TechNet E-Mail Forum." <[log in to unmask]>  [log in to unmask]  at
INTERNET
Date:    2/21/98 1:19 PM


     Fellow Technetters,


     Does any one ever came across depression mark on Printed Circuit Board
     during Solder mask Exposing?How does this marks eppears and how to
     overcome this problem?

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