Patent ID: 8320038

Claim:
A method of fabricating an integrated device comprising: forming a contact opening through a dielectric layer to an underlying structure of a microcircuit on a substrate; depositing a seed layer comprising a refractory metal on a surface of the contact opening, wherein depositing the seed layer comprises depositing from 100 to 1000 Å of titanium (Ti), and further depositing from 100 to 1000 Å of titanium-tungsten (TiW); nitriding the seed layer to form a barrier layer on a surface thereof; depositing a metal over the barrier layer to form a high temperature contact in the opening; forming a temperature resistant cap over the high temperature contact; and fabricating a MicroElectroMechanical System (MEMS) on the substrate using high temperature processing steps, wherein at least a portion of the MEMS overlies and electrically couples to the high temperature contact.