Steve, As I mentioned, it was published in Feb this year. It's a good paper, worth reading. Regards, Bruce Misner > ---------- > From: Steve Gregory[SMTP:[log in to unmask]] > Reply To: TechNet E-Mail Forum.;[log in to unmask] > Sent: Monday, July 22, 2002 12:20 PM > To: [log in to unmask] > Subject: Re: [TN] Au-Ni coating > > I've never heard/read anything about uncured soldermask either. I've got a > pretty good *.PDF file authored by Nicholas Biunno of Hadco, and presented > at the '99 IPC Printed Circuits Expo that doesn't mention anything about > soldermask...is this something new? > > -Steve Gregory- > > > > > Bruce: > > My understanding of Black Pad was it is caused by too much > phosphorus in the nickel (as I recall) plating bath. > Solder mask contamination is a new one for me. > With mask going on after the gold, how does it contaminate the > nickel? Mask should not come in contact with the nickel at all in my > experience > > I am interested in learning all nuances of black pad causation. > Would appreciate your comments. > > Charlie McMahon > > > > > > -------------------------------------------------------------------------- > ------- 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 ---------------------------------------------------------------------------------