Steve, you might looking at internal fuse of the board. jk >-----Original Message----- >From: TechNet [mailto:[log in to unmask]] On Behalf Of >Barmuta, Mike >Sent: Friday, May 30, 2003 12:24 PM >To: [log in to unmask] >Subject: Re: [TN] Micro-inch to copper weight conversion... > > >Steve: 1oz Cu foil on a finished outerlayer is typically 1300 >microinches. You got some pretty thin copper at 170 >microinches if the units and analysis are correct. > > >Regards > >Michael Barmuta > >Staff Engineer > >Fluke Corp. > >Everett WA > >425-446-6076 > > > > >-----Original Message----- >From: Steve Gregory [mailto:[log in to unmask]] >Sent: Friday, May 30, 2003 9:13 AM >To: [log in to unmask] >Subject: [TN] Micro-inch to copper weight conversion... > > >Hi All, > >I got my boards back from our fab vendor (the ones that had >the trace thickness problem), and they sent the XRF >measurements that they took. But they're in microinches, is >there some conversion that you do to convert that to copper weight? > >Here's the measurements that I got: > > µin Cu >1. 170.9 >2. 173.0 >3. 170.1 >4. 170.6 > >Thanks in advance! > >-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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------