It's a mutilayer board from 2 date codes (both 2005). Also from the same supplier. -Al -----Original Message----- From: [log in to unmask] [mailto:[log in to unmask]] Sent: Friday, May 20, 2005 12:59 AM To: [log in to unmask]; Al Onderick Subject: Re: [TN] XRAYed through holes ?? May be thin copper plating and platig voids+outgassig . A cross section should be done to verify the hole plating quality. Is this a double sided or multilayer board? Did you experience opens before deciding to X-ray the board? Are the failed boards from the same manufacturer and date code? Gaby ----- Original Message ----- From: "Al Onderick" <[log in to unmask]> To: <[log in to unmask]> Sent: Thursday, May 19, 2005 8:54 PM Subject: [TN] XRAYed through holes ?? > Technetters, Any idea what might cause this? The SMT soldered fine, but > the thru holes look like this > > > > http://www.texas-gold.org/PCB/pages/xray/index.htm > > > > -Al Onderick > > > --------------------------------------------------- > 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 847-615-7100 ext.2815 > ----------------------------------------------------- > --------------------------------------------------- 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 847-615-7100 ext.2815 -----------------------------------------------------