LISTSERV - TECHNET Archives - LISTSERV.IPC.ORG

TECHNET Archives

August 2008

TechNet@IPC.ORG

	LISTSERV Archives
	TECHNET Home
	TECHNET August 2008

	Log In
	Register

	Subscribe or Unsubscribe

	Search Archives

Options:	Use Monospaced Font Show Text Part by Default Show All Mail Headers
Message:	[<< First] [< Prev] [Next >] [Last >>]
Topic:	[<< First] [< Prev] [Next >] [Last >>]
Author:	[<< First] [< Prev] [Next >] [Last >>]

Subject:	Re: Different pad sizes on the same BGA
From:	Ioan Tempea <[log in to unmask]>
Reply To:	TechNet E-Mail Forum <[log in to unmask]>, Ioan Tempea <[log in to unmask]>
Date:	Mon, 18 Aug 2008 10:17:14 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (78 lines)

Well,

So I guess the conclusion of my 25 pages study will be like: OK if used in downhole (or uphole) applications for horses, still a big unknown if used as originally intended ;o(

Thanks,

Ioan

-----Message d'origine-----
De : TechNet [mailto:[log in to unmask]] De la part de Joe Fjelstad
Envoyé : 16 août 2008 11:36
À : [log in to unmask]
Objet : Re: [TN] Different pad sizes on the same BGA

Dewey and John 
 
Why am I not surprised to find you guys horsing around with that  one... ;-)
 
Cheers, 
Joe 
 
 
In a message dated 8/15/2008 1:25:49 P.M. Pacific Daylight Time,  
[log in to unmask] writes:

So this  is for use in a Veterinary Clinic for  Equestrians?
Dewey

-----Original Message-----
From: TechNet  [mailto:[log in to unmask]] On Behalf Of Ioan Tempea
Sent: Friday, August 15,  2008 6:30 AM
To: [log in to unmask]
Subject: [TN] Different pad sizes on  the same BGA

Dear Technos,



Due to a highly restrictive  design, we have a 1mm pitch, 17x17mm BGA
that has 250 micron pads. As per a  previous posting of mine, these pads
peel off during  depanelizing.



In reply to my request to increase pad size, the  designer could do the
following:

*    Modify the first row  of pads to rectangular shape, 250x350 um
*    Increase all the  other pads to 350um circular pads



How does this look from the  reliability point of view?



It's a medical imagery application,  not a life supporting device but
best reliability expected. It will work in  hospitals, so relatively
stable  environment.



Thanks,



Ioan

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/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
-----------------------------------------------------

ATOM RSS1 RSS2

LISTSERV.IPC.ORG