Larry: Are you getting any appearance change after first reflow in Imm. Tin? (Look carefully, put non-reflowed board next to reflowed board, and compare colors) Rudy Sedlak Larry K <[log in to unmask]> wrote: We are having problems with solderability of the PCB on oursecond side reflow. Everything looks good after reflowon the first side but when we run the second side we have non-wetting of the pads of this side. Just to ensure we were doing everything correctly,we switched sides (we did the second side first and then did the first side as a second reflow) and the problem was still after the second reflow. We are thinking this validated our process because the side causing us problems switched with our experiment. As I said in the suject line, this is Immersion Tin. Any suggestions for a cure? thanks, Larry --------------------------------- Get your own web address. Have a HUGE year through Yahoo! Small Business. --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------- Get the Yahoo! toolbar and be alerted to new email wherever you're surfing. --------------------------------------------------- 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 -----------------------------------------------------