Patent ID: 11967944
Assignee: SEIKO EPSON CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A vibrator element comprising:
a base part; and
a vibrating arm provided with an arm part which is coupled to the base part, which has a groove opening in a principal surface, and which has an elongated shape, and a weight part which is located at a tip side of the arm part, and which has a weight disposed on the principal surface, wherein
the weight is provided with at least one processing scar which is partially removed, and which is recessed in a thickness direction of the vibrating arm,
when an axis which overlaps a center in a width direction of the vibrating arm, and which extends along an extending direction of the vibrating arm is defined as a central axis, and an axis which overlaps a centroid of the vibrating arm, and which extends along the extending direction of the vibrating arm is defined as a centroid axis in a plan view of the principal surface, the processing scar is formed in at least an area at an opposite side to the centroid axis with respect to the central axis, and
S1<S2, an area of the processing scar located at the centroid axis side with respect to the central axis is S1, and an area of the processing scar located at an opposite side to the centroid axis with respect to the central axis is S2.