Patent ID: 9650237
Date: 2017-05-16
CPC Classifications: B81B,B81C,G01C,G01P,G01R,H01L

Claim:
1. A method of fabricating an electromechanical device, the method comprising: providing a first wafer; forming a circuit arrangement on a first surface of the first wafer; forming a first electrode on a second surface of the first wafer; forming a first via structure from the first surface of the first wafer to the second surface of the first wafer, the first via structure electrically connecting the first electrode with the circuit arrangement; forming a second via structure from the first surface of the first wafer to the second surface of the first wafer, the second via structure electrically connecting the circuit arrangement; providing a second wafer; forming a suspended structure on a first surface of the second wafer with a spacing formed between the suspended structure and a second surface of the second wafer; forming a second electrode on the suspended structure; forming an interconnect structure on the first surface of the second wafer, the interconnect structure electrically connecting the second electrode; and bonding the first wafer to the second wafer with the second surface of the first wafer facing the first surface of the second wafer, the second via structure electrically connecting the interconnect structure, and the first electrode and the second electrode forming a capacitive structure.