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Wed, 19 Sep 2007 10:34:00 -0700 |
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What Dewey said ;)
However, keep in mind that the intended purpose of LPISM is to coat the
surface...filling the through holes is a 'bonus' (depending upon your
point-of-view).
There are no standard specifications yet (hence, no "industry standard"),
but there is a guide for design: IPC-4761
Stephen Pierce
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bill Dworak
Sent: Wednesday, September 19, 2007 9:37 AM
To: [log in to unmask]
Subject: [TN] Via Plugging
Does any one know of a better way to plug vias with LPI ratehr than just
the old standard method that will cover and plug the entire surface of a
PCB? I am being told that it is "industry Standard" to have about a 10% non
plugged ratio. Any help will be welcome.
Bill Dworak
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