Dennis, I know your question was addressed offline, but here is the answer
to your question for others to see as well:
http://www.pcblibraries.com/forum/forum_posts.asp?TID=1121&PN=1&TPN=1


me



-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Denis
Lefebvre
Sent: Friday, April 28, 2006 8:41 AM
To: [log in to unmask]
Subject: [DC] BGA Balls

Can anyone explain what is meant by Collapsing vs Non-Collapsing Ball
and how it affects the IPC-7351 landpattern calculations? I see the
designation in the LP Calculator, but I do not recall ever seeing this
specified on a data sheet.

Confused;

Denis Lefebvre, CID+
Sr. PCB Designer
Finisar Corp <http://www.finisar.com/index.php>
(408) 542-3832


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