Invention Grant
US09075079B2 Method and structure of an integrated MEMS inertial sensor device using electrostatic quadrature-cancellation 有权
使用静电正交取消的集成MEMS惯性传感器装置的方法和结构

Method and structure of an integrated MEMS inertial sensor device using electrostatic quadrature-cancellation
Abstract:
An integrated MEMS inertial sensor device. The device includes a MEMS inertial sensor overlying a CMOS substrate. The MEMS inertial sensor includes a drive frame coupled to the surface region via at least one drive spring, a sense mass coupled to the drive frame via at least a sense spring, and a sense electrode disposed underlying the sense mass. The device also includes at least one pair of quadrature cancellation electrodes disposed within a vicinity of the sense electrode, wherein each pair includes an N-electrode and a P-electrode.
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