Mass for use in a micro-electro-mechanical-system sensor and 3-dimensional micro-electro-mechanical-system sensor using same
First Claim
1. A 3-dimensional MEMS sensor, comprising:
- a first axis fixed electrode;
a second axis fixed electrode;
a third axis fixed electrode;
a movable electrode frame including a first axis movable electrode, a second axis movable electrode, a third axis movable electrode, and a connection part connecting the movable electrodes, wherein the first axis movable electrode and the first axis fixed electrode form a first capacitor along the first axis, the second axis movable electrode and the second axis fixed electrode form a second capacitor along the second axis, and the third axis movable electrode and the third axis fixed electrode form a third capacitor along the third axis, the connection part including a center mass, wherein the center mass is connected with at least one of the first, second and third axis movable electrodes, and has an outer periphery and a first interconnecting segment directly and straightly connecting at least two adjacent sides of the outer periphery;
at least one spring connecting with the movable electrode frame; and
at least one anchor connecting with the spring,wherein the first, second and third axes are not parallel to one another such that they define a 3-dimensional coordinate system.
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Accused Products
Abstract
A 3-dimensional MEMS sensor, comprising: a first axis fixed electrode; a second axis fixed electrode; a third axis fixed electrode; a movable electrode frame including a first axis movable electrode, a second axis movable electrode, a third axis movable electrode, and a connection part connecting the movable electrodes, wherein the first axis movable electrode and the first axis fixed electrode form a first capacitor along the first axis, the second axis movable electrode and the second axis fixed electrode form a second capacitor along the second axis, and the third axis movable electrode and the third axis fixed electrode form a third capacitor along the third axis, the connection part including a center mass, wherein the center mass is at least connected with one of the first, second and third axis movable electrodes, and has an outer periphery and a first interconnecting segment connecting at least two adjacent sides of the outer periphery; at least one spring connecting with the movable electrode frame; and at least one anchor connecting with the spring, wherein the first, second and third axes are not parallel to one another such that they define a 3-dimensional coordinate system.
12 Citations
20 Claims
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1. A 3-dimensional MEMS sensor, comprising:
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a first axis fixed electrode; a second axis fixed electrode; a third axis fixed electrode; a movable electrode frame including a first axis movable electrode, a second axis movable electrode, a third axis movable electrode, and a connection part connecting the movable electrodes, wherein the first axis movable electrode and the first axis fixed electrode form a first capacitor along the first axis, the second axis movable electrode and the second axis fixed electrode form a second capacitor along the second axis, and the third axis movable electrode and the third axis fixed electrode form a third capacitor along the third axis, the connection part including a center mass, wherein the center mass is connected with at least one of the first, second and third axis movable electrodes, and has an outer periphery and a first interconnecting segment directly and straightly connecting at least two adjacent sides of the outer periphery; at least one spring connecting with the movable electrode frame; and at least one anchor connecting with the spring, wherein the first, second and third axes are not parallel to one another such that they define a 3-dimensional coordinate system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A mass for a MEMS sensor, the MEMS sensor including a fixed electrode and a movable electrode, wherein the movable electrode is movable relatively to the fixed electrode, the mass being connected with the movable electrode and comprising:
- an outer periphery, and a first interconnecting segment directly and straightly connecting at least two adjacent sides of the outer periphery.
- View Dependent Claims (15, 16, 17, 18, 19)
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20. A 3-dimensional MEMS sensor, comprising:
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a first axis fixed electrode; a second axis fixed electrode; a third axis fixed electrode; a movable electrode frame including a first axis movable electrode, a second axis movable electrode, a third axis movable electrode, and a connection part connecting the movable electrodes, wherein the first axis movable electrode and the first axis fixed electrode form a first capacitor along the first axis, the second axis movable electrode and the second axis fixed electrode form a second capacitor along the second axis, and the third axis movable electrode and the third axis fixed electrode form a third capacitor along the third axis, the connection part including a center mass, wherein the center mass is connected with at least one of the first, second and third axis movable electrodes, and has an outer periphery and a first interconnecting segment connecting at least two adjacent sides of the outer periphery; at least one spring connecting with the movable electrode frame; and at least one anchor connecting with the spring, wherein the first, second and third axes are not parallel to one another such that they define a 3-dimensional coordinate system, and wherein the third axis movable electrode includes parts which are located at locations extending from four corners of the center mass.
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Specification