Microelectromechanical device, method for manufacturing a microelectromechanical device, and method for manufacturing a system on chip using a CMOS process
Abstract:
A microelectromechanical systems (MEMS) device is provided and includes a bulk semiconductor substrate, a cavity formed in the bulk semiconductor substrate, a movably suspended mass, a cap structure and a capacitive structure is shown. The movably suspended mass is defined in the bulk semiconductor substrate by one or more trenches extending from a main surface area of the bulk semiconductor substrate to the cavity. The cap is structure arranged on the main surface area of the bulk semiconductor substrate. The capacitive structure comprises a first electrode structure arranged on the movably suspended mass and a second electrode structure arranged at the cap structure such that the first electrode structure and the second electrode structure are spaced apart in a direction perpendicular to the main surface area of the bulk semiconductor substrate.
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