MEMS sensor with offset anchor load rejection
Abstract:
A MEMS sensor includes a MEMS layer, a cap layer, and a substrate layer. The MEMS layer includes a suspended spring-mass system that moves in response to a sensed inertial force. The suspended spring-mass system is suspended from one or more anchors. The anchors are coupled to each of the cap layer and the substrate layer by anchoring components. The anchoring components are offset such that a force applied to the cap layer or the substrate layer causes a rotation of the anchor and such that the suspended spring-mass system substantially remains within the original MEMS layer.
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