Hello;

I tried to make wet etching of gold evaporated on thin layer of Titanium on
Polymer substrate.

But the gold layer don't stick very well on substrate, because after etching
with cyanides, it remove all the gold on surface substrat even that covered by
sacrifice layer.

I am looking for a process that leaving gold sticks very well on polymer
substrate.

Thank you for your time.

DELAS Lee