I am sure this has been beat to death. If you have BGA's with lead free balls can you solder these in a leaded process. I have 7 different BGA's on this board So if they are all leaded and I go with a leaded process life is good. If they are all lead free and I go with a lead free process life is good. But what if I can't get them all in one flavor. I know that one way is really bad. Isn't it soldering lead free parts in a leaded process? I could imagine that you won't get hot enough to reflow the lead free balls. But what about using non lead free BGA's in a lead free world. Any input on this will really be appreciated. Thank You John Foster --------------------------------------------------- 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 -----------------------------------------------------