Hi Rick - take a look in the TechNet archives - there was a pretty good thread discussing the pros/cons of Sn62 versus Sn63 in terms of tombstoning and wetting a few weeks back. Dave Hillman Rockwell Collins [log in to unmask] Rick Thompson <[log in to unmask]>@ipc.org> on 10/29/2002 06:55:00 PM Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond to Rick Thompson <[log in to unmask]> Sent by: TechNet <[log in to unmask]> To: [log in to unmask] cc: Subject: Re: [TN] Round Pads for 0402 Parts? Steve, Any feedback is appreciated. Are you saying that you've been able to document a reduction in tombstoning on 0402's using 2% silver solder paste? Hadn't heard of that one. Anybody else using it with these results? Rick Thompson ===== Original Message from [log in to unmask] (TechNet E-Mail Forum.) at 10/29/02 4:37 pm >Hi Rick! > >I'll get back to you tomorrow with some pad geometries that have worked well >here...don't trust my memory (getting senile, ya' know...hehehe) > >Have you tried using a 2% silver solder paste yet? I'd recommend it very >highly!! >Believe me, it makes a HUGE difference!!!! > >-Steve Gregory- > >--------------------------------------------------- >Technet Mail List provided as a free service by IPC using LISTSERV 1.8e >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/html/forum.htm for additional >information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 >ext.5315 >----------------------------------------------------- Rick Thompson Sr. SMT Process Engineer SMTEK International, Inc. +1 (805) 532-2800 [log in to unmask] --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------