Werner The discussion was focused on immersion silver. This was first introduced in 94 in the UK which was long after Jack's work which I recall was plated silver. Are you aware of any documented occurrences embrittled immersion silver solder joints? Best regards Lee J. Lee Parker, Ph.D. JLP Consultants LLC 804 779 3389 ----- Original Message ----- From: [log in to unmask]<mailto:[log in to unmask]> To: [log in to unmask]<mailto:[log in to unmask]> ; [log in to unmask]<mailto:[log in to unmask]> Sent: Friday, May 25, 2007 12:45 PM Subject: Re: [TN] Silver Embrittlement? Hi Lee, For the Ag-embrittlement you have to ggo to the IEEE Compliant Lead Task Force, that Jack Balde chaired, reports; Au-embrittlement has been around since the 60's Werner ************************************** See what's free at http://www.aol.com<http://www.aol.com/>. --------------------------------------------------- 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 -----------------------------------------------------