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Date: | Mon, 4 Feb 2008 17:24:43 -0800 |
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has anyone been successful with a via in pad that is not plugged? YES
If so, was it double sided? NO
And, was one side connected to a BGA ball? YES
John Burke
(408) 515 4992
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ryan Grant
Sent: Monday, February 04, 2008 4:55 PM
To: [log in to unmask]
Subject: [TN] Open via in pad - any success?
Hi All,
I just got told by a design engineer that LaserJet printers are built using
via in pad where the via is NOT plugged. He claims the via is filled with
solder first, then goes through the normal SMT process.
He intends to use this to connect a BGA ball on one side of the board to a
cap on the other side using an mechanically drill via that is not plugged.
Before I call BS on this, and tell him "do not pass go until that via is
plugged, flattened and plated over", has anyone been successful with a via
in pad that is not plugged?
If so, was it double sided?
And, was one side connected to a BGA ball?
Thanks,
Ryan
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