He saying they want to stop performing the ENIG and perform full body and selective gold plate. Each of these would be 'pattern plating' and thus end the need for a tie bar. You only need tie bars when you perform tab like plating, not selective or full body pattern plate. Franklin -----Original Message----- >From: Ryan Grant <[log in to unmask]> >Sent: Mar 28, 2008 2:26 PM >To: [log in to unmask] >Subject: Re: [TN] Gold Flash vs. ENIG Solder finish > >???? The explanation doesn't make sense. ENIG does not need the tie >bars removed and the tie bars must be removed after hard Au plating >regardless of any surface finish. > >-----Original Message----- >From: TechNet [mailto:[log in to unmask]] On Behalf Of Scott Lefebvre >Sent: Thursday, March 27, 2008 10:02 AM >To: [log in to unmask] >Subject: [TN] Gold Flash vs. ENIG Solder finish > >I have a FAB house that is recommending we switch from using ENIG for >the main body with electroplated hard gold for the edge fingers to an >alternate finish. They are recommending Gold Flash *Finish the entire >board with 3-10 micro inches of hard Au over 100-200 micro-inches of Ni >and selectively Au plate fingers with 30-50 micro-inches of hard Au. >They reason they want us to change is it removes the step of removing >the tie-bars on the gold edge fingers. > >Would this have an affect with solderability switching to Gold Flash? > > >Scott > > >--------------------------------------------------- >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 -----------------------------------------------------