All I know all of you have headed APEX, have a drink on me. But I have a question: Is there any information on an alloy that is Sn97and Cu3?. It is proposed that the internal intermetallic formation makes it a strong solder joint for higher temperature applications. And it has also been proposed that the excess copper will lead to brittleness as the 4% gold does to solder Phil Hinton --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------