Actually I can see a line between the Cu that looks as though it may be a void or resin. James ----- Original Message ----- From: "Steve Gregory" <[log in to unmask]> To: <[log in to unmask]> Sent: Tuesday, September 13, 2005 2:43 PM Subject: Re: [TN] raised vias...I did a "Okie" cross-section > Hi All! > > I have a local shop here do a lot of cross-sections for us, but I couldn't > take > the board over to them until tommorrow. But I was so curious to take a look > at the bumps, or "raised vias", I decided to do what I could, to see what I > could. > > We're not set-up to do cross-sections here (that may change in the future), > but I took a dremel tool and got close to where I wanted to look, then > started > using finer and finer grit wheels. Then I used an exacto knife and > carefully > scraped material away until I was able to see how things looked at the > raised vias. This was done under a microscope, and I mean it was done > carefully. > > I know it's not as good looking as what a real cross section would look > like, > but it does give an idea of how things look. Go to: > > http://www.stevezeva.homestead.com and look at "Okie Cross-section". > > I still don't know why I have the bumps...they look like they're solid > copper. > > Kind regards, > > -Steve Gregory- > Senior Process Engineer > LaBarge Incorporated > Tulsa, Oklahoma > (918) 459-2285 > (918) 459-2350 FAX > __________________________________________________________________ > This message may contain information that is privileged and confidential to > LaBarge, Inc. It is for use only by the individual or entity named above. > If you are not the intended recipient, you may not copy, use or deliver > this message to anyone. In such event, you should destroy the message and > kindly notify the sender by reply e-mail. > > --------------------------------------------------- > 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 -----------------------------------------------------