Transene TFA should be able to etch through that in about 10 minutes. PR
works fine as a mask.

Jesse Fowler
  UCLA/MAE Dept., 420 Westwood Plaza, Room 37-129, ENGR IV
  Los Angeles, CA 90095-1597 | (310)825-3977
"Facts are stubborn, but statistics are more pliable."
   -- Mark Twain

On Thu, 25 Sep 2003, gokul ramamani wrote:

> Hi,
>
> Does anybody know any method by which i can etch 3 micron meter thick gold??
>
> Gokul