You opened that controversy again, John! Many favor immersion silver as the best "all around" finish. Some prefer to stick with ENIG and all of its associated evils. More and more are moving to immersion silver. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Babcock John Sent: Tuesday, November 15, 2005 6:29 PM To: [log in to unmask] Subject: [TN] best plated surface finish If somebody wants an extra smooth plating finish using lead free plating what material would they use...and what would be the finishing process? I've heard HASL is sort of rough...and it really doesn't apply using silver solder because of the melting temps. Is ENIG (electroless nickel immersion gold) the way to go to get a smooth finish? thanks! John Babcock PCB Designer III Isothermal Systems Research (ISR) 2218 N. Molter Rd Liberty Lake, WA 99019 [log in to unmask] P: (509) 241-4641 F: (509) 444-1082 This E-mail and any files transmitted with it are confidential and proprietary in nature and intended solely for the use of the individual to whom it is addressed. If you have received this E-mail in error, please send it back to the person that sent it to you. Any views or opinions presented are solely those of its author and do not necessarily represent those of Isothermal Systems Research, Inc. Unauthorized publication, use, dissemination, forwarding, printing or copying of this email and its associated attachments is strictly prohibited. Thank you for your cooperation. --------------------------------------------------- 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 -----------------------------------------------------