No problem I was just revisiting the original question and his wish to move away from HASL to gold. As you suggest silver if flat and if produced correctly does provided very good solderability. Its just the case that many people only remember the bad of HASL and not the good of yesterday and the improvements of the last couple of years with LF HASL. As many people quote nothing solders like solder. Bob Willis 2 Fourth Ave, Chelmsford, Essex, CM1 4HA England Tel: (44) 1245 351502 Fax: (44) 1245 496123 Mobile: 07860 775858 www.ASKbobwillis.com New Bob Willis "Printed Board Inspection & Quality Control Workshop" 3rd September www.ASKbobwillis.com/PCBworkshop.pdf Book your place on Bob's "Step by Step Failure Analysis Workshop" 11th September www.ASKbobwillis.com/faworkshops.pdf -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D. Sent: 26 August 2008 13:25 To: [log in to unmask] Subject: Re: [TN] ENIG White paper Hi, Bob Dave stated he was looking for a flat finish, thus his desire to move to ENIG. We were simply pointing out that an IAg flat finish is more often preferable than ENIG. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Bob Willis Sent: Tuesday, August 26, 2008 1:51 AM To: [log in to unmask] Subject: Re: [TN] ENIG White paper There have been many comments on this subject but few asking why move away from HASL or do you not want to use tin/lead or lead-free HASL? There are lots of high end users that have found good PCB shops who are able to provide a good repeatable surface finish. Its key to work with your supplier and lead-free works well for solderability and assembly yields. Bob Willis 2 Fourth Ave, Chelmsford, Essex, CM1 4HA England Tel: (44) 1245 351502 Fax: (44) 1245 496123 Mobile: 07860 775858 www.ASKbobwillis.com New Bob Willis "Printed Board Inspection & Quality Control Workshop" 3rd September www.ASKbobwillis.com/PCBworkshop.pdf Book your place on Bob's "Step by Step Failure Analysis Workshop" 11th September www.ASKbobwillis.com/faworkshops.pdf -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Dave Connitt Sent: 21 August 2008 19:06 To: [log in to unmask] Subject: [TN] ENIG White paper Dear Technetters, I am trying to locate a white paper on the pluses and minuses of ENIG that I think was circulated through the IPC. Can anyone point me to that document? We are considering changing from HASL to ENIG for our SMT designs and want to see what we should look for or anticipate. Thanks, Dave Connitt --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------