I guess the question is why you are applying OSP? OSP is normaly applied over bare copper. If the flex is copper and just these pads are gold then I still don't see a problem with coating the gold pads as well. Ken Kirby Applications Engineer Speedline Technologies 573-317-3062 cell 817-946-3357 Cheryl Johnson <cheryl.johnson@U S.EXCELSTOR.COM> To Sent by: TechNet [log in to unmask] <[log in to unmask]> cc Subject 07/06/2006 01:42 [TN] osp over gold bond pads PM Please respond to TechNet E-Mail Forum <[log in to unmask]> ; Please respond to Cheryl Johnson <cheryl.johnson@U S.EXCELSTOR.COM> Does any one have any experience they care to share with OSP over electroplated gold bond pads (on FLEX)? It would save us 5 cents each if the gold pads didn't have to be masked before the OSP is applied... Thank you for your help! Sincerely, ----------------------------------- Cheryl Johnson, C.I.D.+ Manager ExcelStor US Office, Engineering Services Email: [log in to unmask] Tel: (303) 684-7291 Fax: (303) 684-7268 Mobile: (303) 809-5815 ----------------------------------- --------------------------------------------------- Technet Mail List provided as a 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/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 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------