Eddie, I think that there are books out that indicate the percentage of gold in solder that will lead to brittle joints. I think the IPC spec says less than 0.2% gold in solder is acceptable. Your customer should be able to calculate solder volume vs. Gold volume and determine the percentage. If it is below the 0.2% he should be OK. Joel Mearig Delta Tau Data Systems, Inc. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Eddie Rocha Sent: Wednesday, October 26, 2005 10:50 AM To: [log in to unmask] Subject: [TN] ENIG and brittleness I have a customer looking to convert over to ENIG but would like to see information that shows he doesn't need to be concerned with brittle solder joints. Where could I find this type of information? Thank you, Eddie Rocha South Bay Circuits --------------------------------------------------- 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 -----------------------------------------------------