Patent ID: 7704868

Claim:
A method of fabricating a micro-electromechanical system (MEMS) device from a complementary metal oxide semiconductor (CMOS) having a silicon layer and an oxide layer, the oxide layer being disposed on the silicon layer and having at least one metal layer disposed therein, the method comprising: etching the silicon layer of the CMOS to form a trench through the silicon layer to expose a portion of the oxide layer; depositing a silicon oxide layer on the silicon layer and exposed portion of the oxide layer within the trench; etching the silicon oxide layer deposited on the exposed portion of the oxide layer to expose a portion of the metal disposed within the oxide layer; electrodepositing a conductor within the trench, the conductor extending through the trench to the exposed portion of the metal; etching the silicon layer of the CMOS to remove portions of the silicon layer adjacent the conductor; depositing a silicon dioxide layer over the silicon layer and the conductor; and etching portions of the oxide layer adjacent the conductor to form at least one trench adjacent the conductor defined by sidewalls of the silicon layer on which a layer of oxide remains deposited.