The only "spots" I see are on the innerlayer copper, beneath layers of plated copper, is this the problem? If so, it is highly unlikely to have anything to do with the glass fibers. Glass voiding would be on the laminate surface, there should be no glass on top of the copper. I do not see any glass voiding in the cross-sections. Have you done any backlights? When Susan asked about post-plasma cleanup, she may have been referring to the traditional O2 burn at the end of the plasma cycle? Was this done? (I also agree that these parts saw a LOT of etchback, not common with plasma. And plasma does not touch the glass - that would normally be etched or frosted in a follow-up wet process.) Plasma without proper cleanup can leave a surface that does not always plate easily or have good adhesion. Patty Patricia J. Goldman PPG Industries, Inc. 724-274-3417 [log in to unmask] -----Original Message----- From: Steve Gregory [mailto:[log in to unmask]] Sent: Wednesday, January 08, 2003 8:37 AM To: [log in to unmask] Subject: Re: [TN] Small spots on etch line Mornin' All! Just wanted to let you all know my page is back up now, and I've got some more pictures up that Randy would like you to take a look at. Go to: http://www.stevezeva.homestead.com and look at 276-1.jpg - 276-1-5.jpg. -Steve Gregory- --------------------------------------------------- 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 -----------------------------------------------------