No, I don't. I don't even know what thickness we are talking about, and what volume and what paste paste we are talking about. I don't know how this alloy may behave during lead free wave soldering and what could happen to the bath. I hope that you will get the right answer from the collegues on the net. Gaby ----- Original Message ----- From: "Reuven Rokah" <[log in to unmask]> To: "TechNet E-Mail Forum" <[log in to unmask]>; "Gabriela Bogdan" <[log in to unmask]> Sent: Wednesday, December 13, 2006 10:46 AM Subject: RE: [TN] 58Bi/42Sn /// HASL for PCBs > Hi Gaby, do you have any experience? > > Dr' Jenny Hwang is favor for such idea, during the seminar. > > The thickness of the coating on PCB with the solder paste volume, will > reduce the % of the Bismuth to acceptable level. > > Best Regards > Reuven ROKAH > > > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Gabriela Bogdan > Sent: Tuesday, December 12, 2006 5:51 PM > To: [log in to unmask] > Subject: Re: [TN] 58Bi/42Sn /// HASL for PCBs > > Well, if you want to play an "Uri Geller" trick to your customers, maybe > it > is a good idea... > Here they are soldered- and now: Abrakadabra- they all fall off just by > my > magic touch! > Gaby > http://www.mse.uiuc.edu/faculty/Shang/Preprints/1997-2006/ScriptaBi.pdf > http://www.mrs.org/s_mrs/bin.asp?CID=2274&DID=48689&DOC=FILE.PDF > > > ----- Original Message ----- > From: "Reuven Rokah" <[log in to unmask]> > To: <[log in to unmask]> > Sent: Tuesday, December 12, 2006 9:54 AM > Subject: Re: [TN] 58Bi/42Sn /// HASL for PCBs > > >> I think its can be good alloy for PCBs HASL plating. >> >> If someone against, pls explain why not. >> >> Best Regards >> Reuven ROKAH >> e mail: [log in to unmask] >> >> >> -----Original Message----- >> From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman >> Sent: Tuesday, December 12, 2006 1:34 AM >> To: [log in to unmask] >> Subject: Re: [TN] 58Bi/42Sn >> >> Hi Kerry - Dr. Hwang's book titled "Environment Friendly Electronics: >> Lead-free Technology", ISBN 0-901150-40-1, Chapter 6.2, contains a >> significant amount of data on the 58Bi/42Sn solder alloy which may be >> helpful in your efforts. Good Luck. >> >> Dave Hillman >> Rockwell Collins >> [log in to unmask] >> >> >> >> >> Kerry McMullen >> <Kerry_McMullen@L >> TX.COM> >> To >> Sent by: TechNet [log in to unmask] >> <[log in to unmask]> >> cc >> >> >> Subject >> 12/11/2006 09:01 [TN] 58Bi/42Sn >> AM >> >> >> Please respond to >> TechNet E-Mail >> Forum >> <[log in to unmask]> >> ; Please respond >> to >> Kerry_McMullen@LT >> X.COM >> >> >> >> >> >> >> 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 >> ----------------------------------------------------- >> >> --------------------------------------------------- >> 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 > ----------------------------------------------------- > --------------------------------------------------- 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 -----------------------------------------------------