| Electronics > Projects, Designs, and Technical Stuff |
| silver etching PCB? |
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| coppercone2:
So since a PCB is pretty thin, and you can make em yourself with epoxy and dielectric or ceramic board, the only question is, is there a etching method? the obvious solution is to use silver power/ground planes and put a copper top plane and make alot of layers, but what if you wanted a silver top? |
| KaneTW:
Nitric acid. |
| coppercone2:
concentration? temperature? additives? |
| MagicSmoker:
--- Quote from: coppercone2 on July 13, 2019, 08:46:17 am ---concentration? temperature? additives? --- End quote --- Is your google machine broken? I Am Not A Chemist, but a basic search turns up HCl + HNO3 (isn't this "aqua regia"?), 50-70% HNO3 (stronger is not better otherwise the HNO3 will just passivate the surface with an oxide layer) and even concentrated HCl with removal of precipitated AgCl via filtration to drive the reaction to the right. Noxious to hazardous fumes produced in all cases. |
| coppercone2:
its not really defined well for things like under cutting traces and making planer structures against a backer plate as the PCB industry is. yea and google keeps redirecting me to some kind of adult website, can you help me with that?? |
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