Has anyone any experience of using electroless
nickle/immersion gold finish on rotating wiper contact areas of the pwb. Is
there a spec which permits this. I have made circuits for wahing machines with
immersion gold on copper and that worked with a life of about 10 years, but that
was more than 20 years ago. The problem is the cost of hard plating selected
areas.
Any thoughts on this would be appreciated.
Paul Gould