Hi,
We have been using Cr/Au 1500/2500 evaporated conductors on Pyrex for devices
that are latter anodicaly
bonded.
We have noticed a 10 fold increase in resistance following exposure to 370 deg
for 30 min at nitrogen
ambient.
analysis showed that the chrome only does not change it's resistance.

anybody out there know what is causing this? any idea how to avoid it?
better two metal option?

thanks
shay