Frank, Before I can answer, does normal touchup fix these joints quickly using an RMA flux? Or is there considerable effort to get these pads to flow? Bill Kasprzak Moog Inc, Electronics Process Engineering -----Original Message----- From: Frank L Norman [mailto:[log in to unmask]] Sent: Tuesday, July 29, 2003 10:37 AM To: [log in to unmask] Subject: [TN] PICTURES: Wave solder process gone bad Technet, PWA's experienced solder wetting difficulties to plated through holes including via's during the wave solder process. PWA's are two sided multilayer finished with Electroless Nickel Immersion Gold (ENIG). Top side SMT components were reflowed and bottom side SMT and through hole components were wave soldered. SEE PICTURES of bottom side of PWA at this website. http://www.ripus.com/images/pwa/index.htm Does anyone know what may have caused this issue? Regards, Frank Norman Manufacturing Support Engineer Raytheon, Space and Airborne Systems (SAS) (805)879-2745 [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 -----------------------------------------------------