a whole sac? Inge ----- Original Message ----- From: "Werner engelmaier" <[log in to unmask]> To: <[log in to unmask]> Sent: Friday, February 13, 2009 5:52 PM Subject: Re: [TN] [tinwhiskers] - RoHS & BGAs!!! > Hi Hani, > If you needed underfill with SnPb solders, you will even more need it with > SAC. > For testing, use IPC-9701. > > Werner > > > > > > > > -----Original Message----- > From: AL-Yousef, Hani E <[log in to unmask]> > To: [log in to unmask]; TechNet E-Mail Forum <[log in to unmask]>; > [log in to unmask]; SMART Group smart-e-link > <[log in to unmask]> > Sent: Fri, 13 Feb 2009 11:27 am > Subject: [tinwhiskers] - RoHS & BGAs!!! > > > > > > > > > > > > Hello All, > > I am in the hunt for information on how to best evaluate whether > underfill is needed for SAC BGA when soldered with SAC paste. > > Also, part of my evolution is to find the right solder, flux and > chemistry to clean afterwards. Further specify a cleanliness level. > > I guess one has to find to the right test to use to evaluate these > parameters. > > Our products are expected to last for 20+ years while mounted outside on > a power distribution pole mounts. > > > I can use all the help I can get. > > Thanks > Hani > > > > > > > --------------------------------------------------- > 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 > ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------