Electronics > Projects, Designs, and Technical Stuff

silver etching PCB?

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IconicPCB:
Silver plating calls for some potentially nasty chemicals ( cyanide?)

Silver on ceramic substrate is possible as mentioned above... silver ink + stencil + reflow oven

coppercone2:
so you guys think ferric nitrate etch on a bonded silver sheet to substrate with standard mask won't work?

coppercone2:
i guess you would need to test minimum solderable silver sheet thickness to see what will survive a solder cycle

magic:
Is this for some audiophile thing? :)


--- Quote from: coppercone2 on July 14, 2019, 05:07:56 am ---so you guys think ferric nitrate etch on a bonded silver sheet to substrate with standard mask won't work?

--- End quote ---
Internet says it may work. But why bother if printing and baking works too?

vk6zgo:
It is possible to silverplate non conductors.
I've lost the book that had instructions on how to do it, but I think they used graphite on the non conductor.
Too long ago to remember, though!

Commercial silver plating materials are not ideal for electronics, as they have impurites added to increase surface gloss, wear resistance, etc.

The downside  of such additives is that they increase the resistivity to greater than copper.

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