Sorry for the misplaced sarcasm.  I hadn't noticed the word gold in the
subject line.  In this case an adhesion layer of Ti or Cr would be
appropriate.

Roger Shile

-----Original Message-----

That depends.  If you're going to evaporate water the surface should be
hydrophilic.  In this case oxidizing should do the trick.

Roger Shile

-----Original Message-----
Hello

I want to coat silicon with evaporation coating, and
to assurance that the adhesion between the two
materials  will be optimal.
What will be  the optimal treatment to achieve
adhesion ?