Our production floor is dealing with an ENIG board for the first time. Several components need to be hand-soldered, and they are finding they need their irons hotter. Any recommendations on how much hotter? They have been asking about whether they need to tin the gold areas first, like they would a gold plated connector pin. I said no, the gold is a negligible amount, they are actually, in effect, trying to solder to the nickel underneath. Just wanted to make sure my facts were straight. The boards were wave soldered - there are a large number of thru-hole components on the board - and the flow through wasn't as good as a previous rev with Immersion Tin. I suspect that the assembly house has not had a lot, or maybe even any, experience dealing with ENIG finishes before. Any recommendations that you suggest we give them for the next run of boards? Regards, Genny. --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------