Hi J-P, Joe, Werner, ALL, IPC LF Listservers, I have to read all your notes, yet in support of LF failures Tin Whiskers has been reported as a real failure mechanism that is unique to Pb-free. By that I mean we have more than just accelerated failures or modelling failures. One published failure is in space via NASA and another, I and we know of, is in a Nuclear Reactor facility in CT. I called them once or twice, yet still have to do some more follow up. If anyone else has done this please Share. We also should expect SnCu failures with P-I-Hole components, as well as some chip capacitor end cap failures. I do agree that hard published data is going to take some time to work it's way to the public domain so that everyone will have some references. Yours in Engineering, Dave YiEngr, MA/NY DDave -------------------------------------------------------------------------------Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Leadfree To temporarily stop/(start) delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL/(MAIL) Search previous postings 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 -------------------------------------------------------------------------------