That is correct. You don't get something for nothing when it comes to solder. I wonder if Lenovo included the carbon impact for all of the hot air rework machines running 24/7? -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of David Hillman Sent: Tuesday, February 14, 2017 6:02 PM To: [log in to unmask] Subject: Re: [TN] New Solder Alloy Hi TechNet - I will echo Andy's comments, the SnBi solder alloy system may have some application in some products but a number of solder alloys in the SnBi alloy family have been extensively investigated and found to not be applicable for a large segment of high performance product types/use environments. Dave On Tue, Feb 14, 2017 at 2:06 PM, Giamis, Andy <[log in to unmask]> wrote: > Interesting. > I tore apart a certain smart phone a few years back and saw that they > attach heat shields/heat spreaders to the PCB edge with Sn-Bi. The PCBA > was amazing but I thought the Sn-Bi solder joints had wetting issues > and many of the solder joints were cracked. Sn-Bi seems to be rather brittle. > It would be interesting to see how this particular alloy performs. > > > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Mike Buetow > Sent: Tuesday, February 14, 2017 11:38 AM > To: [log in to unmask] > Subject: Re: [TN] New Solder Alloy > > I have been in touch with Lenovo about the alloy, which is a > tin-bismuth alloy developed in concert with Alpha and Senju. There's > some info in the link below based on what I've learned. > http://circuitsassembly.com/ca/editorial/menu-news/27004- > new-lenovo-lts-lowers-melting-temp-cuts-co2-emissions.html > Best, > Mike > -------- Original message --------From: "Vargas, Stephen M" < > [log in to unmask]> Date: 2/14/17 9:19 AM (GMT-08:00) To: > [log in to unmask] Subject: [TN] New Solder Alloy Got news of this from a > colleague. Interesting... would love to hear comments from the TechNet > group. > > http://news.lenovo.com/news-releases/lenovo-announces- > breakthrough-innovative-pc-manufacturing-process.htm > > Regards, > Steve Vargas >