I have tried etching to no avail. As for a thin gold film and copper contacts, I do not believe they can handle the temperatures we're hoping to achieve. I would like to try polished copper at lower temperatures though, to see if there is an improvement.
As for the process of evaporating...
Hi all,
I am currently working to build a Joule Heater that will be used to heat samples to upwards of 1000*C in seconds in vacuum. While the temperature and speed is definitely there, the contacts are always non-uniform -- making the data hardly repeatable. I am using a ~70mmx10mm Silicon...