Typing on phone... If the bond wires are gold they still are dissimilar to pcb copper, but if they were copper bond wires, thermal gradients would be less of an issue.
On Friday, 28 October 2016, Scott Stobbe <scott.j.sto...@gmail.com> wrote: > "chip on board", not sure that it wouldnt help > > On Friday, 28 October 2016, Dr. David Kirkby (Kirkby Microwave Ltd) < > drkir...@kirkbymicrowave.co.uk > <javascript:_e(%7B%7D,'cvml','drkir...@kirkbymicrowave.co.uk');>> wrote: > >> On 28 Oct 2016 15:25, "Juris L" <juri...@gmail.com> wrote: >> > >> > Found reference to optimal emf solder composition cadmium/tin alloy >> > (70 %/30 %) in JJ array measurement article page 12. >> >> I wonder how practical it is to weld test leads, so there's no solder or >> thermal EMF. >> >> I know that this will sound crazy, and probably is, but could one weld >> components to a PCB? >> >> I don't even have the excuse of been drunk or taking drugs, but I will >> risk ridicule for making the above comment! Sometimes thinking out of the >> box is useful. >> >> Dave. >> _______________________________________________ >> volt-nuts mailing list -- volt-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/volt-nuts >> and follow the instructions there. >> > _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
