MEMS structure
First Claim
1. A MEMS structure comprising:
- a planar substrate;
a support body coupled to the planar substrate;
a fixed electrode coupled to the planar substrate; and
a movable portion spaced from and facing the fixed electrode, the movable portion being coupled to the substrate and including;
a movable weight;
an intermediate frame surrounding an outer edge of the movable weight;
a plurality of elastic supports connecting the movable weight to intermediate frame, the elastic supports being elastically deformable in a first direction extending parallel to the plane of the planar substrate such that the movable weight can move in the first direction; and
at least one torsion bar pivotally connecting one end of the intermediate frame to the support body so as to allow the intermediate frame, and with it the movable weight, to pivot around an axis which extends parallel to the plane of the planar substrate and perpendicular to the first direction.
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Accused Products
Abstract
A MEMS structure includes a planar substrate, a support body coupled to the planar substrate, a fixed electrode coupled to the planar substrate and a moveable portion. The movable portion is spaced from and faces the fixed electrode. The movable electrode includes a movable weight and an intermediate frame surrounding an outer edge of the movable weight. A plurality of elastic supports connect the movable weight to the intermediate frame. The elastic supports are elastically deformable in a first direction extending parallel to the plane of the substrate such that the movable weight can move in the first direction. At least one torsion bar pivotally connects one end of the intermediate frame to the support body so as to allow the intermediate frame, and with it the movable weight, to pivot around an axis which extends parallel to the plane of the substrate and perpendicular to the first direction.
8 Citations
8 Claims
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1. A MEMS structure comprising:
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a planar substrate; a support body coupled to the planar substrate; a fixed electrode coupled to the planar substrate; and a movable portion spaced from and facing the fixed electrode, the movable portion being coupled to the substrate and including; a movable weight; an intermediate frame surrounding an outer edge of the movable weight; a plurality of elastic supports connecting the movable weight to intermediate frame, the elastic supports being elastically deformable in a first direction extending parallel to the plane of the planar substrate such that the movable weight can move in the first direction; and at least one torsion bar pivotally connecting one end of the intermediate frame to the support body so as to allow the intermediate frame, and with it the movable weight, to pivot around an axis which extends parallel to the plane of the planar substrate and perpendicular to the first direction. - View Dependent Claims (2, 3, 4)
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5. A MEMS structure comprising:
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a planar substrate; a support body coupled to the planar substrate; a fixed electrode coupled to the planar substrate; and a movable portion spaced from and facing the fixed electrode, the movable portion being coupled to the planar substrate and including; a movable weight; an intermediate frame surrounding an outer edge of the movable weight; at least one torsion bar pivotally connecting one end of the movable weight to the intermediate frame so as to allow the movable weight to pivot around an axis which extends parallel to the plane of the planar substrate and in a first direction; and a plurality of elastic supports connecting the intermediate frame to the support body, the elastic supports being elastically deformable in a second direction extending horizontal to the plane of the planar substrate and perpendicular to the first direction such that the intermediate frame, and with it the movable weight, can move in the second direction. - View Dependent Claims (6, 7, 8)
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Specification