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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