Doug: Check for leakage. Do a leak check on the chamber. It may have too much air going in through a seal. . Regards, Ramon > -----Original Message----- > From: Doug Pauls [SMTP:[log in to unmask]] > Sent: Friday, January 09, 2004 10:35 AM > To: [log in to unmask] > Subject: [TN] plasma > > Good morning all, > > I have a question related to plasma cleaning. We have two plasma cleaners, > same model, using Argon-Hydrogen in both, same mixture, same power level, > but the plasma in one appears more purple than the plasm in the second > cleaner. Any ideas as to why? > > Secondly, does anyone know if repeated exposure to plasma cleaning will > degrade the surface of a gold pad and thus reduce bond wire strength? > > Thanks. > > Doug Pauls > Rockwell Collins > > --------------------------------------------------- > 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 847-509-9700 ext.5315 > ----------------------------------------------------- --------------------------------------------------- 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 847-509-9700 ext.5315 -----------------------------------------------------