Hey Ed! Got your picture posted, it's here: http://stevezeva.homestead.com/Odd_Plating.jpg Steve -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Ed Popielarski Sent: Monday, August 08, 2011 1:10 PM To: [log in to unmask] Subject: [TN] Odd plating Greetings again Comrades! My corporate mail server hasn't liked Technet mail, so I've been lurking from home. We have new IT staff, so they feel it should work now. That being said and done, I have 1 of 100 boards that has 2 PTH's with a rough surface. The rest of the holes in the lot look fine, it's limited to these two. I've never run across this before. The surface looks uniform (ENIG), but the Cu seems to be cratered, including the inside of the barrel, as well as a pronounced knee. My question is, what could be the root cause? Pic to follow courtesy of the esteemed Mr. Gregory. Regards, Ed Popielarski Engineering Supervisor NBS Corporation 2950 Patrick Henry Dr. Santa Clara, Ca. 95054 Ph: 408-654-1100 Fx: 408-654-1107 Cl: 408-234-1497 Cl: 949-581-6601 (please use this number after hours) ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------