Dear Technet, Thanks for the information. Regards Suganthi Joyce Koo <[log in to unmask]> Sent by: TechNet <[log in to unmask]> 02/23/2006 07:31 PM Please respond to [log in to unmask] To [log in to unmask] cc Subject Re: [TN] Question regd surface finish. migrated from ENIG to Flash is easy... but not the otherway around...they are not equal "A!=B"... jk -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Lee parker Sent: Thursday, February 23, 2006 8:29 AM To: [log in to unmask] Subject: Re: [TN] Question regd surface finish. As Scott said, these two finishes are different. By t Selva As Scott said, these two finishes are different. By the way the term normally used is Flash Gold. Flash Gold uses electrolytically plated soft gold over electrolytically plated nickel and thus enjoys several advantages over ENIG. I coauthored a paper at EXPO on this finish. I have worked with several clients who have migrated from ENIG to Flash Gold and have found it to be a great success Oddly enough, the finish is for the most part supplied by PCB shops in China and Taiwan. Best regards Lee J. Lee Parker, Ph.D. JLP Consultants LLC 804 779 3389 ----- Original Message ----- From: Scott B. Westheimer<mailto:[log in to unmask]> To: [log in to unmask]<mailto:[log in to unmask]> Sent: Thursday, February 23, 2006 7:51 AM Subject: Re: [TN] Question regd surface finish. Selva. They are not the same. ENIG is electroless nickel under immersion gold which is 3 to 5 micron thick and it a soft gold finish. Gold flash in applied also over nickel and is electro plated. The thickness can be made thicker than immersion gold by increasing the time in the tank. Electro plated gold can be either hard or soft. Scott B. Westheimer ----- Original Message ----- From: "Selva Suganthi" <[log in to unmask]<mailto:[log in to unmask]>> To: <[log in to unmask]<mailto:[log in to unmask]>> Sent: Thursday, February 23, 2006 5:38 AM Subject: [TN] Question regd surface finish. > Dear All, > > I have a query regarding surface finish, > > I saw one fabinstruction notes , there the surface finish mentioned as > Gold flash , my query is "Are the term Gold finish and ENIG both mean > same ? or do they different ?" if so let me know the difference. > > Thanks in advance!! > > Thanks and Regards > Suganthi > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 1.8e > To unsubscribe, send a message to [log in to unmask]<mailto:[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]<mailto:[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]<mailto:[log in to unmask]>: SET Technet Digest > Search the archives of previous posts at: http://listserv.ipc.org/archives<http://listserv.ipc.org/archives> > Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16< http://www.ipc.org/contentp age.asp?Pageid=4.3.16> > for additional information, or contact Keach Sasamori at [log in to unmask]<mailto:[log in to unmask]> or > 847-615-7100 ext.2815 > ----------------------------------------------------- > "Progress is the activity of today and the assurance of tomorrow." --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask]<mailto:[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]<mailto:[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]<mailto:[log in to unmask]>: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives<http://listserv.ipc.org/archives> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16< http://www.ipc.org/contentp age.asp?Pageid=4.3.16> for additional information, or contact Keach Sasamori at [log in to unmask]<mailto:[log in to unmask]> or 847-615-7100 t.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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------