Electronics Forum | Tue Jan 13 20:52:21 EST 2004 | davef
Bismuth Solder alloys * Fatigue life is reduced when soldered to hot air solder leveled (HASL) boards. * Lead from Hot Air Leveling (HAL) coatings can diffuse through the grain boundaries of alloy. * Lead is bismuth alloys can form a eutectic composi
Electronics Forum | Fri Nov 02 09:09:56 EDT 2012 | davef
Sure you can use it it with leaded HASL. Recognize that ... * Your Sn42/Bi58 will no linger be Sn42/Bi58 * Your leaded HASL will no longer be the same leaded HASL that walked in the door to your plant * Lead from HASL coatings can diffuse through the
Electronics Forum | Fri Mar 24 13:05:08 EST 2006 | samir
Patrick, I learned at a Lead-Free seminar, where the seminar lecturer was a proponent of Bismuth in soldering, that Bismuth is actually "safe to eat" and is one of the few non-toxic metals around.
Electronics Forum | Mon Dec 20 08:23:30 EST 2010 | johanhuizing
The buyers in our company like to change the PCB finishing because of reducing costs. The proposed change is going from Ni/Au to HASL lead free, I know that in the beginning of the lead free period there where a lot of problems to use the HASL especi
Electronics Forum | Tue Nov 06 22:37:35 EST 2012 | davef
Ryan ... "As for bismuth-based lead-free alloys, a lower melting temperature than that of tin-lead is offered together with a cost similar to that of tin [in the area of $3/lb]. Unfortunately, bismuth in soldering alloys tends to create embrittlemen
Electronics Forum | Tue Aug 15 12:15:27 EDT 2006 | russ
Was there not concern about Bismuth for some reason? Cannot remember what it was but it seemed to do with reliability or something? Russ
Electronics Forum | Tue Jan 13 04:35:26 EST 2004 | pablowe
We have done some trials with Lead free which appear to have gone well. We will be introducing a number of new products over the coming months and it is an opportune time to begin using lead free on these products which will be required by law in the
Electronics Forum | Thu May 25 23:26:23 EDT 2006 | adihsr
anyone who knows if really BISMUTH is not good as a replacmeent plating for lead free?...pls.. advise..have a good day...
Electronics Forum | Tue Aug 15 11:38:41 EDT 2006 | samir
H.W. At a lead-free seminar I took last year, the PhD lecturer, who is known to be a huge proponent of Bismuth, said the same thing. It is absolutely non-toxic and is used in foods, makeup, etc.
Electronics Forum | Fri Mar 24 13:25:24 EST 2006 | patrickbruneel
See Samir that's what happens if you go too lead-free seminars, they feed you crap. If they served you lunch with bismuth chips its time you see a doctor or you end up like WML. By the way any takers?? Who in this forum volunteers to be the first to
