Inge, We have plenty of negative data on lead-free, whether it is reliability of the solder, IMC voiding on copper pads, mixing Pb and Pb-free solder, PCB damage in Pb-free reflow, etc. But our job is to be pragmatic, to look for solutions and know what can and cannot be done. I'd rather be using PbSn solder but that is not the political reality today. Daniel Blass Process Research Engineer Area Array Consortium Advanced Process Laboratory Unovis Solutions Universal Instruments Corporation Visit us on the web at www.unovis-solutions.com --------------------------------------------------- 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 -----------------------------------------------------