Not in regulation. Not even in moderation. Dewey -----Original Message----- From: Inge [mailto:[log in to unmask]] Sent: Friday, June 11, 2010 1:01 PM To: Whittaker, Dewey (EHCOE); [log in to unmask] Subject: Re: [TN] Weird formation of voids Graham Greene? Inge -------------------------------------------------- From: "Whittaker, Dewey (EHCOE)" <[log in to unmask]> Sent: den 11 June 2010 21:40 To: <[log in to unmask]> Subject: Re: [TN] Weird formation of voids > A wise comment was obviously addressed to me, but the SiC in the rough > is most definitely a reference to Graham at the GOLF course. > > Dewey > > > > ________________________________ > > From: [log in to unmask] [mailto:[log in to unmask]] > Sent: Friday, June 11, 2010 12:06 PM > To: TechNet E-Mail Forum; Whittaker, Dewey (EHCOE) > Subject: Re: [TN] Weird formation of voids > > > > > A wise comment from a SiC in the rough.................. > > Doug Pauls > > > > "Whittaker, Dewey (EHCOE)" <[log in to unmask]> > Sent by: TechNet <[log in to unmask]> > > 06/11/2010 01:52 PM > > Please respond to > TechNet E-Mail Forum <[log in to unmask]>; Please respond to > "Whittaker, Dewey (EHCOE)" <[log in to unmask]> > > To > > [log in to unmask] > > cc > > > > Subject > > Re: [TN] Weird formation of voids > > > > > > > > > > > It's always good to get a view from a cross-section of our Industry, > regardless of how well polished it was or not. > Dewey > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of stephen gregory > Sent: Friday, June 11, 2010 8:21 AM > To: [log in to unmask] > Subject: Re: [TN] Weird formation of voids > > Hi Bev! > > Got your picture today, and have it posted now: > > http://stevezeva.homestead.com/Bevs_Ball.jpg > > Almost looks like little pieces of dross. I wonder if something is going > on with the solder paste? Or leaded reflow profile with a lead-free BGA? > > Steve > > --- On Wed, 6/9/10, Bev Christian <[log in to unmask]> wrote: > > > From: Bev Christian <[log in to unmask]> > Subject: [TN] Weird formation of voids > To: [log in to unmask] > Date: Wednesday, June 9, 2010, 9:51 AM > > > TechNetters, > I am sending a picture to Steve to post. I have labs in three > locations. One of them has seen weird voids in cross-sections of BGAs > while the other two locations have not. For the lab that has seen them, > the cross-sections were prepared by different people on different days > for different products, using the same equipment. The voids are not in > all balls cross-sectioned but may be only in one of two of the balls in > a row of multiple solder joints examined. > > Have you seen anything like this? Do you know the root cause? > > Vlad, > You know what is going on, so please don't respond. > > Bev > > > --------------------------------------------------- > 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 > ----------------------------------------------------- > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please contact helpdesk at x2960 or > [log in to unmask] > ______________________________________________________________________ > > --------------------------------------------------- > 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 > ----------------------------------------------------- > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please contact helpdesk at x2960 or > [log in to unmask] > ______________________________________________________________________ > > --------------------------------------------------- > 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 > ----------------------------------------------------- > > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > --------------------------------------------------- > 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 > ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- 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 -----------------------------------------------------