Question Is gold plating on a PCB required for DS lite button membrane?

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I ordered a few PCBs a while back for the DS lit buttons as a breakout, I didn't get gold plating, but they dons seem to work. Does gold plating make a difference for these button membranes? If so, how does it affect it?
 

Aurelio

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I ordered a few PCBs a while back for the DS lit buttons as a breakout, I didn't get gold plating, but they dons seem to work. Does gold plating make a difference for these button membranes? If so, how does it affect it?
It helps A LOT. First of all ENIG is flatter, so rubber membranes make better contact. Secondly, ENIG conducts better.
 
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