Patent ID: 9444403
Filing Date: 2016-09-13
CPC Classification: H03B,H03H

Claim Text:
1. A resonation element comprising: a basal portion; at least one resonating arm extending out in a first direction from the basal portion; and a single crystal silicon substrate in which a length along a second direction perpendicular to the first direction is set to a thickness, wherein the resonating arm is flexurally vibrated along a third direction perpendicular to the first direction and the second direction, wherein the resonating arm is flexurally vibrated by an electrostatic force, wherein the resonating arm includes a region, receiving the electrostatic force, in a region from a tip on an opposite side to the basal portion side toward the basal portion side along the first direction to L/2, when seen in plan view, and wherein when a resonation frequency of the resonating arm is set to F [kHz], a width along the third direction of the resonating arm is set to W [μm], and a length along the first direction of the resonating arm is set to L [μm], at least one expression of the following Expression (1) and the following Expression (2) is satisfied, where, A is −5.006×10 where, C is −7.507×10