Hi All, I just rediscovered IPC-PE-740, Troubleshooting for Printed Board Manufacture and Assembly, and Plasma Hole Preparation starts on page 91. The subcommittee reads like a who's who of the industry including several frequent TechNet contributors - Patricia Goldman (Chair) and Susan Mansilla. Connie & Randy, I'll burn a ROM and bring ya copy next week. IHS is getting me a better copy than what's currently in their system - the bloody photos are blobs due to the scanning but it's a start. Hans You can run . . . but you'll only die tired. ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hans M. Hinners AC-130 Systems Engineer (Hardware) Warner Robins Air Logistics Center (WR-ALC) 226 Cochran Street Robins AFB, GA 31098-1622 Tele: (478) 926 - 5847 [DSN Prefix: 468] Fax: (478) 926 - 4911 mailto:[log in to unmask] -----Original Message----- From: Scott Westheimer [mailto:[log in to unmask]] Sent: Wednesday, January 08, 2003 7:07 PM To: [log in to unmask] Subject: Re: [TN] Small spots on etch line Randy, You might want to take the cross section that the pictures came from and perform a horizontal section to give you a better look as to if it is fibers and there origin Scott B. Westheimer General Manager, Gultech North Carolina, Inc. 5800 McHines Place Raleigh, North Carolina 27616 Phone: (919)872-0100 Fax: (919)713-4849 Toll Free: 1-866-GULTECH Email: [log in to unmask] http:///www.gultechna.com ----- Original Message ----- From: "Randy" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, January 08, 2003 4:42 PM Subject: Re: [TN] Small spots on etch line > Thanks Susan, > We will check this tomorrow! I'll let everyone know the out come! Right > now we are pulling our hair out here! As a alternate supervisor of this > shop and have never had to deal with this and uppers, wanting production. > I'm just pull things out of the air, trying to figure this out. > > Thanks for all the help from everyone! > Randy > > On Wed, 8 Jan 2003 16:13:24 EST, [log in to unmask] wrote: > > >Randy > >Are you seeing these "spots" in the as polished condition prior to > >microetching the mount" ? If you are, it can usually mean that there is > >contamination there that has been plated around. That would help in trying > >to find out what it is. > > > >Another thing you can do with your process is to take your panels through > >drill and etchback processing and then instead of going through the > >electroless line - put them through the oxide line. The metallic areas - > >ends of inner layers - should all darken with the oxide. If there is resin > >or non-metallic areas on the ends of the inner layers they won't be coated > >with the oxide. > > > >The fact that there is an indentation in the inner layer where the "ball" > is > >located really is a concern when trying to troubleshoot what is happening. > >If the glass bundles are laying on top the inner layer and are being plated > >around, I wouldn't expect to see the indentation - almost as though they > have > >been forced into the end of the inner layer. > > > >Susan Mansilla > >Robisan Lab > > > ><font size="2">---------------------------------------------------<br> > >Technet Mail List provided as a free service by IPC using LISTSERV 1.8e<br> > >To unsubscribe, send a message to [log in to unmask] with following text in > >the BODY (NOT the subject field): SIGNOFF Technet<br> > >To temporarily halt or (re-start) delivery of Technet send e-mail to > [log in to unmask]: SET Technet NOMAIL or (MAIL)<br> > >To receive ONE mailing per day of all the posts: send e-mail to > [log in to unmask]: SET Technet Digest<br> > >Search the archives of previous posts at: > http://listserv.ipc.org/archives<br> > >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<br> > >-----------------------------------------------------<br></font> > > > > <font size="2">---------------------------------------------------<br> > Technet Mail List provided as a free service by IPC using LISTSERV 1.8e<br> > To unsubscribe, send a message to [log in to unmask] with following text in > the BODY (NOT the subject field): SIGNOFF Technet<br> > To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)<br> > To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest<br> > Search the archives of previous posts at: http://listserv.ipc.org/archives<br> > 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<br> > -----------------------------------------------------<br></font> --------------------------------------------------- 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 -----------------------------------------------------