Patent ID: 9606191
Date: 2017-03-28
CPC Classifications: B81B,G01P,G01R,H01L

Claim:
1. A MEMS device comprising: a single proof mass that moves in a first direction, in response to an ambient acceleration along a first axis and rotates about a second direction in response to an ambient magnetic field along a second axis, a first magnetized magnetic material disposed partially on a surface of the single proof mass; a first spring anchored to a substrate to support the single proof mass; a first sensing element coupled to the single proof mass and responsive to the motion of the proof mass in the first direction and responsive to the rotation of the proof mass about the second direction, a second sensing element coupled to the single proof mass and responsive to the motion of the proof mass in the first direction, and responsive to the rotation of the single proof mass about the second direction; and a signal processor coupled to the first and second sensing elements and operable to generate a first output responsive to the ambient magnetic field along the second axis.