Guy I have several clients who have been using this technology for over eighteen months, these issues have not appeared. The technology was developed by Cookson and the porosity readings I have seen far exceed ENIG. Best regards Lee J. Lee Parker, Ph.D. JLP Consultants LLC 804 779 3389 ----- Original Message ----- From: "Guy Ramsey" <[log in to unmask]> To: "'TechNet E-Mail Forum'" <[log in to unmask]>; "'Lee parker'" <[log in to unmask]> Sent: Friday, December 29, 2006 1:09 PM Subject: RE: [TN] Questions on ENIG VS gold plating > I didn't read your paper but my experience mirrors Werner's. It is very > difficult to get a thin, even, always present electroplate. A two micro > inch > minimum might easily result in spots that are thick enough to cause > brittle > solder connections. A two micro inch maximum might easily fail to protect > the nickel. > > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee parker > Sent: Friday, December 29, 2006 12:56 PM > To: [log in to unmask] > Subject: Re: [TN] Questions on ENIG VS gold plating > > Werner > > This could not be flash gold since in this process the gold thickness is > approximately 2 micro inches, which of course is where the name > originated. > The advantage over ENIG is that the porosity is greatly reduced. > > I am sure you will agree two micro inches of gold is not going to cause > embrittlement. I imagine what you have is typical plated gold with uses a > completely different and much more expensive chemistry. > > Best regards > > Lee > > J. Lee Parker, Ph.D. > JLP Consultants LLC > 804 779 3389 > > > ----- Original Message ----- > From: "Werner Engelmaier" <[log in to unmask]> > To: <[log in to unmask]> > Sent: Friday, December 29, 2006 12:47 PM > Subject: Re: [TN] Questions on ENIG VS gold plating > > > > In a message dated 12/29/06 11:25:43, [log in to unmask] writes: > > > Many Asian shops use what they call "flash gold" > > > which is electro plated gold over nickel. > > > > > Hi Lee, > > True enough, but 2 of my clients in China had gold-embrittlement > > failures > > because some of their product had too much Au on it. > > > > Werner > > > > --------------------------------------------------- > > 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 -----------------------------------------------------