Another aspect on the use of Bismuth: Bismuth is a 3% by-product from lead-mining. Peer Langeveld Consultant Soft Soldering Processes. 2006/12/11, Kerry McMullen <[log in to unmask]>: > Hello esteemed Technet, > I am looking comments on what you would consider the advantages and > disadvantages of this composition of this solder paste. (58Bi/42Sn) > Lower MP. 138 Degrees C. > Lower fatigue resistance > Wetting to ImAg?? > Wetting to ImNiAu?? > No Clean? Residue? > Intermetallic Formation? > Mixing with 63/37Sn? > Our application is an RF board where we would use this paste post Wave / > Hand Solder. > Any comments appreciated. > > Cheers, > Kerry > > --------------------------------------------------- > 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 > ----------------------------------------------------- > --------------------------------------------------- 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 -----------------------------------------------------