Does anyone have or know of, any good comparative charts, documents, white papers dealing with the ENIG (gold) PCB finish when compared to Immersion White Tin (IWT)? We have a customer that has been using IWT as the surface of choice for many years, but we almost have them convinced to move to ENIG - for lots of anecdotal reasons. I am simply trying to round up some corroborating evidence/documentation that makes the point in B&W. It would also be nice to have something they can use to convince their end-users that the ENIG finish is preferable to IWT in lots of ways. I am trying to hit all aspects of the comparison, i.e. raw PCB shelf life, long term reliability, manufacturing issues, etc. Any and all help in this matter would be greatly appreciated! Thanks in advance, Dale Ritzen, CQA Quality Manager/ISO Management Representative Austin Manufacturing Services Email: [log in to unmask] --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 -----------------------------------------------------