Physical quantity sensor and electronic apparatus
First Claim
1. A physical quantity sensor comprising:
- a first substrate including first and second fixed electrodes disposed on a first base surface of the first substrate, and first and second through-holes provided in the first substrate;
a second substrate including third and fourth fixed electrodes disposed on a second base surface of the second substrate, and third and fourth through-holes provided in the second substrate, the second base surface being arranged to face the first base surface;
a movable body arranged between the first substrate and the second substrate, the movable body being configured with first and second movable pieces, the first and second movable pieces respectively being provided with first and second movable electrodes, a first mass of the first movable piece being larger than a second mass of the second movable piece; and
first through fourth through-electrodes being respectively provided in the first through fourth through-holes, the first through fourth through-electrodes being respectively electrically connected to the first through fourth fixed electrodes, whereinthe first and third through-holes overlap with each other in a plan view, and the second and fourth through-holes overlap with each other in the plan view.
2 Assignments
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Accused Products
Abstract
A physical quantity sensor includes: a first substrate including a first fixed electrode portion disposed on a first base surface and a first through-hole penetrating the front and rear of the substrate; a second substrate including a second fixed electrode portion disposed on a second base surface and a second through-hole penetrating the front and rear of the substrate, the second base surface being arranged to face the first base surface; and a movable body arranged between the first substrate and the second substrate with gaps and including a movable electrode portion facing the first fixed electrode portion and the second fixed electrode portion. In the first through-hole, a first through-electrode electrically connected with the first fixed electrode portion is disposed. In the second through-hole, a second through-electrode electrically connected with the second fixed electrode portion is disposed.
12 Citations
8 Claims
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1. A physical quantity sensor comprising:
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a first substrate including first and second fixed electrodes disposed on a first base surface of the first substrate, and first and second through-holes provided in the first substrate; a second substrate including third and fourth fixed electrodes disposed on a second base surface of the second substrate, and third and fourth through-holes provided in the second substrate, the second base surface being arranged to face the first base surface; a movable body arranged between the first substrate and the second substrate, the movable body being configured with first and second movable pieces, the first and second movable pieces respectively being provided with first and second movable electrodes, a first mass of the first movable piece being larger than a second mass of the second movable piece; and first through fourth through-electrodes being respectively provided in the first through fourth through-holes, the first through fourth through-electrodes being respectively electrically connected to the first through fourth fixed electrodes, wherein the first and third through-holes overlap with each other in a plan view, and the second and fourth through-holes overlap with each other in the plan view. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification