Hi Dave, In fact, I have the same thought as your Mentor once. But, I am afraid that their followers will simply follow blindly and adapt the same kind of thinking. Monkey see, monkey do. Poh At 07:28 AM 2/28/03 -0600, you wrote: > >Hi Poh! I had a mentor who told me that sometimes the only way to change a >basis is to wait for the individual's retirement! It's too bad that your >customer insists on a visual crutch for quality reliance. Other Technet >guru's have suggested your only alternative - work with the soldering >process profile to minimize the solder joint surface texture >characteristics. Good Luck. > >Dave > > > > pohkh > <[log in to unmask] To: "TechNet E-Mail Forum." <[log in to unmask]>, [log in to unmask], Dave > m.sg> Hillman <[log in to unmask]> > cc: [log in to unmask] > 02/27/2003 04:14 Subject: Re: [TN] : Shining smooth solder joint on ENIG or Gold plating Board. > PM > Please respond to > pohkh > > > > > > >Hi Dave, > >The problem is that I'm having extreme stubborn customer that insists to >meet the requirement. > >I do not know how they do it, but those sample boards that they have showed >me is of smooth shining joint. > >I doubt they rework all boards, as each board consists, at least 2000 >solder joints. > >Poh > > >--- Dave Hillman <[log in to unmask]> wrote: > >> Hi Poh! I just have to ask the question - "Why do you want a shiny >> solder >> joint"? A solder joint's surface texture has very little to do with >> its >> quality and use environment integrity. The JSTD-001 and 610 >> committees have >> acknowledged that fact with the elimination of requiring solder >> joints be >> "bright and shiny". Certain metallizations (such as gold) can >> influence the >> solder joint surface texture but have no impact of reliability. >> Reliance on >> a solder joint's appearance as a measure of qualify can be a >> dangerous >> assumption. >> >> Dave Hillman >> Rockwell Collins >> [log in to unmask] >> >> >> >> Poh Kong Hui >> <[log in to unmask] To: >> [log in to unmask] >> M.SG> cc: >> Sent by: TechNet Subject: [TN] : >> Shining smooth solder joint on ENIG or Gold plating Board. >> <[log in to unmask]> >> >> >> 02/27/2003 06:18 >> AM >> Please respond to >> "TechNet E-Mail >> Forum."; Please >> respond to Poh >> Kong Hui >> >> >> >> >> >> >> Hi Technetters, >> >> Can someone advise me how to get a good smooth shining solder joint >> on the >> ENIG board or board with gold plate SMT pads. >> >> As I can understand that board subjected to reflow soldering, the >> solder >> joint tends to look dull and not so smooth joint. But, is there any >> way to >> get a good shining joint. >> >> Thanks. >> >> Poh >> >> --------------------------------------------------- >> Technet Mail List provided as a free 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/html/forum.htm for >> additional >> information, or contact Keach Sasamori at [log in to unmask] or >> 847-509-9700 >> ext.5315 >> ----------------------------------------------------- >> >> --------------------------------------------------- >> Technet Mail List provided as a free 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/html/forum.htm for >> additional >> information, or contact Keach Sasamori at [log in to unmask] or >> 847-509-9700 ext.5315 >> ----------------------------------------------------- > > > > > > > --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------