We are suddenly seeing a rash of dull and grainy solder joints on SMT inductors that use silver-palladium-platinum-glass frit terminations. Otherwise the exterior of the joint looks good. The terminations as supplied have no leaded or lead free solder or tin finish, just the glass frit. In cross section the joint is also unique in that there is no real IM layer and the grain structure near the joint is a bit odd. The solder joints are fully re-flowed. All the other solder joints on the CCA look good with no indication of solder process issues. The vendor claims they have been supplying this type of termination for years and nothing has changed, also this issue has just sprung up in the last couple of months. As far as we can tell the joints look different, but reliable. Any suggestions or comments? Scott Newland Chief Mechanical Engineer - Fighter Enterprise Harris GCSD 321 768 4272 (W) 321 720 1756 (C) E-Mail [log in to unmask] <mailto:[log in to unmask]> Do you have your CALCE log in? If not go to: http://www.calce.umd.edu/accountrequest.html <http://www.calce.umd.edu/accountrequest.html> This information is only intended for the use of the individual or entity named in this email. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the contents of this information is strictly prohibited. If you have received this email in error, please notify me and delete it immediately --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 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 -----------------------------------------------------