If the amount of gold is less than ~20 uin, then rework might be an option. Too much gold will result in embrittlement issues with your solder joints. On 4 Feb 2004 at 8:47, Ezequiel Cruz wrote: Can anyone help with the following: My board house built my boards with a gold finish. The finish should have been selective gold as we have some contact areas on the pwb. I have insisted on a re-build which is currently being done. However, because of our all ready late schedule, the board house has offered to re- work the gold finish boards for us. The method explained to me was mask the selective gold areas and flux clean the remaining board while dipping in molten solder. Does anyone have any experience with re-working this way. Our biggest concern is from a re-liability standpoint. Obviously this board will go through additional thermal cycling not necessarily part of a standard build. What effect, if any, will this have on the board itself. Remember that our stuffing house will place this board through additional thermal cycling. Any help is greatly appreciated. Ezequiel Cruz --------------------------------------------------- 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- 509-9700 ext.5315 ----------------------------------------------------- -- Thanks, Eddie Rocha (408) 978-8992 x 282 --------------------------------------------------- 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 847-509-9700 ext.5315 -----------------------------------------------------