Federico,

Besides all of the commercial products out there you can mix your own with
either
10% HNO3 and DI water or 20 ml HNO3 / 20 ml HCL / 10 ml H2O2  (must be made
fresh).  These etch slowly but with little undercutting.

Brent

Federico wrote:

> Hello everybody
>
> anyone could suggest me an etchant for evaporated/sputtered/electoplated
nickel
>
> thanks
>
> Federico
>
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