Patent ID: 9746490
Date: 2017-08-29
CPC Classifications: B81B,B81C,G01C,G01P

Claim:
1. A physical quantity sensor comprising: a base substrate; a movable portion which is displaceable in a first direction with respect to the base substrate; a plurality of movable electrode fingers which are provided on the movable portion and disposed along the first direction, the plurality of movable electrode fingers including a first movable electrode finger and a second movable electrode finger; a fixed electrode finger which is provided on the base substrate, and disposed to oppose the first movable electrode finger in the first direction; and a fixing portion which fixes the movable portion to the base substrate and is displaceable in the first direction, wherein the second movable electrode finger opposes the fixing portion in the first direction, wherein a clearance between the second movable electrode finger and the fixing portion in the first direction is smaller than a clearance between the first movable electrode finger and the fixed electrode finger in the first direction, and wherein a width of the second movable electrode finger is greater than a width of other movable electrode fingers.