Electronics Forum | Tue Mar 08 11:50:55 EST 2011 | pgoodyear
As a technician that does frequent board level repair / rework some issues have come to mind. I have been an electronics technician for almost 50 years. In that time I have seen the evolution of electronics from point to point wiring using vacuum
Electronics Forum | Thu Sep 23 08:47:25 EDT 2021 | majdi4
1)Though in many cases the difference between SAC305 and SAC405 was small,and not always statistically significant, it was observed that SAC405 generally outperformed SAC305 joints. Under 0°C to 100°C thermal cycling,no statistically significant
Electronics Forum | Fri Dec 31 10:22:54 EST 2004 | gpaelmo
I agree that something has to be done with the lead waste but I believe that a recycling program is a better alternative to lead-free. Isn't silver more toxic? How about the venting of alternate alloy fumes, let alone the effects on operators. I say
Electronics Forum | Thu Mar 08 07:15:29 EST 2007 | davef
We feature Invar (Alloy 36) to be an alternative to stainless steel (304) foil, rather than electroformed.
Electronics Forum | Mon Dec 17 19:01:45 EST 2007 | bbarton
As someone with a LOT of experience with the "low cost" alternative alloys, primarily SACX, I have one simple question....Are these shorts a new phenomena? WAS your process in control, and all of a sudden it's not? If the answer is YES, take a look a
Electronics Forum | Wed Aug 23 08:55:39 EDT 2000 | Dave F
Dr. Lee: Taking a tangent on your response ... When talking about alternate solders. Bismuth forms an alloy with lead with a melting point of 93�C. Are there special conditions that cause this alloy to form? Or does the alloy form commonly when
Electronics Forum | Tue Oct 05 10:38:43 EDT 2004 | palmerg
Major Japanese OEMs investigated numerous lead-free alternatives, including alloys containing bismuth and/or zinc, such as Sn/Ag/Bi/Cu, Sn/8Zn/3Bi and Sn/58Bi. However, over time, the Japanese industry has moved toward Sn/Ag/Cu alloys. The Japan Elec
Electronics Forum | Thu Sep 05 11:05:35 EDT 2019 | SMTA-Tony
There are competitors to REL solder alloys from AIM. Tin-Copper-Nickel-Bismuth alloys (Nihon Superior) are an alternative option which do very well in thermal cycle testing. The reflow profiles required are similar to SAC305 profiles. You may als
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 | Thu Sep 16 17:22:16 EDT 1999 | DaveJ
We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a recomm
