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Subject:	Re: Vias
From:	Karl Bates <[log in to unmask]>
Reply To:	(Designers Council Forum)
Date:	Mon, 17 Mar 2008 10:51:43 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (12 lines)

Paul,
We use filled vias in pad, there are no problems other than finding a manufacturer that can do it, and the additional cost.   There are also dimpling issues that happen, you may want to ask for planerized (flat finish).    This is most important for BGA pads.
Karl> Date: Mon, 17 Mar 2008 09:14:32 -0400> From: [log in to unmask]> Subject: [DC] Vias> To: [log in to unmask]> > Everyone.> > ??? We recently had a vibration failure for a D-5B E-Melf packaged part. The> Mechanical guy wants to put filled vias in the pad to provide mechanical> support to the PAD since we lost the pad and the part in the Vib test. Has> anyone done this before?> Success stories would be great.. What worked? What did not?> Thanks for any insight. > > > > > Paul Brionez CID + > > PB Design and Drafting Inc.> > 3341 Tumbling River Dr> > Clermont, FL 34711> > 352-404-9352> > > > ---------------------------------------------------------------------------------> DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d> To unsubscribe, send a message to [log in to unmask] with following text in> the BODY (NOT the subject field): SIGNOFF DesignerCouncil.> To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL)> Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815> ---------------------------------------------------------------------------------
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