If you use XRF, also measure the thickness of the finish. Some horizontal HASL machines produce a very flat finish. Don Vischulis Sent from my iPad > On Nov 20, 2013, at 4:15 PM, "Wenger, George M. [Contractor]" <[log in to unmask]> wrote: > > Hi Victor, > > Have you looked at the surface finish with XRF. An XRF spectrum and photograph of the finish it might help determine what the finish is > > Regards, > George > George M. Wenger > Failure Signature & Characterization Lab LLC > 609 Cokesbury Road, High Bridge, NJ 08829 > (908) 638-8771 Home (732) 309-8964 Mobile > E-mail: [log in to unmask] > [log in to unmask] > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez > Sent: Wednesday, November 20, 2013 12:15 PM > To: [log in to unmask] > Subject: [TN] Final Surface finish > > Fellow TechNetters: > > Is there a final surface finish which has a high tin content along with some silver. It is not the traditional ImAg. The finish appears somewhat dull with good coverage on the edges of copper features. > > Victor, > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________