Nick and all, We pre-tin our gold leads for the very same reasons you mention. What do your customers say to the change? Hans Air Force Material Command - We keep them flying! ~~~~~~~~ Hans M. Hinners WR-ALC/LYPME Bldg. 640 Materials Engineer 380 Second Street, Suite 104 Manufacturing Eng. Sec. Robins AFB GA 31098-1638 912-926-1970 (Voice) 468 - 1970 (DSN) 912-926-7974 (Fax) [log in to unmask] > -----Original Message----- > From: Nick D'Onofrio [SMTP:[log in to unmask]] > Sent: Tuesday, August 31, 1999 09:26 > To: [log in to unmask] > Subject: [TN] Pre-tinning gold leads > Importance: Low > > We are pre-tinning the gold leads prior to assembly on our military > products. I'm looking for some constructive data or argument to decide if > we > should continue this practice. > My concern would be gold embrittlement in the solder joint and any > latent > failures attributed to this. > Any comments or guidance in this matter would appreciated. > > Regards, > Nick D. > ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################