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February 2019

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Subject:
soldermask silvers
From:
Jack Olson <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Jack Olson <[log in to unmask]>
Date:
Tue, 19 Feb 2019 09:57:39 -0600
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In my experience, what a PCB fabricator would consider a sliver would be
the strip of soldermask material between RECTANGULAR pads being less than a
minimum width.
We got a "DFM report" for a board where minimum distance between ROUND vias
is being reported as slivers.Has anyone ever heard of problems with minimum
mask material between round, unsoldered vias?
I can't imagine any real-world problems that could cause, but I have an
open mind...

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