Gold Etching

[nomexx]

I have an ebeam evaporated film of gold
that I want to remove.
What is the recipe for Potassium Cyanide (KCn)
for gold removal or
the parameters for plasma Argon Milling.
The gold is on a GaAs substrate. I dont want to use the Iodine etchant.
Thanks in advance

 

[doors14]

Try lift-off,you can elimnate the etch.

 

[nbucska]

try <

http://www.uyemura.com/products.htm>

<nbucska@pcperipherals DOT com> subj: eng-tips
read FAQ240-1032

 

[IRstuff]

What's wrong with aqua regia or

http://www.transene.com/au_etchant.html

TTFN