Electronics Forum: superior 75 black stuff (Page 1 of 1)

Strange reaction with Selective Solder alloy

Electronics Forum | Tue Apr 05 12:31:05 EDT 2022 | proceng1

A while back, we had a yellow coating showing up on some solder joints at Selective Solder (LEAD alloy). I contacted the company for our machine and he looked into it. One change we had made not too long before is we switched from Superior 75 to Sup

PCB Surface finish

Electronics Forum | Mon Jul 05 03:44:53 EDT 2004 | johnwnz

Dave, I'm going to disagree with you on the ENIG, it's my 3rd choice only just beating out OSP for that 4th spot. 1. Immersion Silver - cheaper than ENIG, as flat and no issues with Brittle interface (black pad) or Gold Embrittlement) Longer shelf l

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