Patent ID: 8272266
Filing Date: 2012-09-25
Classification: G01C

Abstract:
1. A microelectromechanical systems (MEMS) gyroscope comprising: a top substrate including: a bottom substrate disposed below the top substrate, the bottom substrate including second driving electrodes disposed on a top surface of the bottom substrate, the second driving electrodes substantially aligned below the first driving electrodes such that a force can be applied to the first driving structure by an electrostatic force generated between the first and second driving electrodes, where the first and second driving electrodes are further configured to provide a capacitance signal based on the movement of the first driving structure, the capacitance signal being generated based on the first driving structure moving relative to the second driving electrodes; a first sensing structure comprising first sensing electrodes disposed on a bottom surface of the first sensing structure along at least one side wall of the first sensing structure, the first sensing electrodes being aligned substantially parallel to the at least one side wall of the first sensing structure, and the bottom substrate further includes second sensing electrodes disposed on the top surface of the bottom substrate, the second sensing electrodes substantially aligned below the first sensing electrodes of the first sensing structure, where the first and second sensing electrodes are configured to provide a capacitance signal based on the movement of the first sensing structure, the capacitance signal being generated based on the first sensing structure moving relative to the second sensing electrodes, wherein the first driving electrodes are disposed adjacent and perpendicular to the first sensing electrodes.