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October 1999

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Subject:
Fab: Mask dams between fine pitch smt pads
From:
Ed Cosper <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 13 Oct 1999 08:16:03 -0400
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Hi all,

Just a quick industry capability questions. Are board manufactures still having trouble holding mask dams between fine pitch (19mil) SMT pads. As recent as a year or so ago I was under the impression that board shops would ask the remove these small dams when they got them on the Gerber data. Is this still common.  I am interested in what most people think is feasible regarding mask dams that are 4 mils wide and smaller. All responses are appreciated.

Ed Cosper
ABC

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