Hi fellow fabricators,
I am looking for suggestions to make a wafer level bond that will
yield both low resistance electrical contacts between 2 wafers and
simultaneously produce a hermetically sealed cavity at a known reference
pressure. The peak temperature should be <300 deg C and my metalization
is currently Au/TiW. The ideal solution would no require chemical
mechanical polishing. We have a nice Suss wafer level bonder. We have
explored using BCB for the seal but I not sure what the best approach
would be for electrical connections.
Thanks in advance,
Michael