RESONATOR ELEMENT HAVING A PAIR OF VIBRATING ARMS WITH WIDE PORTIONS AND ARM PORTIONS

摘要

A resonator element includes a base portion and a pair of vibrating arms that are provided integrally with the base portion, are aligned in an X-axis direction, and extend in a Y-axis direction from the base portion. Each of the vibrating arms includes an arm portion and a wide hammerhead that is located on the free end side of the arm portion and has a greater length in the X-axis direction than the arm portion. Assuming that the length of the vibrating arm in the Y-axis direction is L and the length of the hammerhead in the Y-axis direction is H, the relationship of 1.2%

主权项

1. A resonator element, comprising:
a base portion; and a pair of vibrating arms that extend in a first direction from the base portion in plan view and are aligned along a second direction crossing the first direction in plan view, each of the vibrating arms including:
an arm portion; anda wide portion disposed on a side of the arm portion opposite to the base portion in plan view and having a length along the second direction that is greater than the arm portion in plan view, wherein for each vibrating arm:
a length of the vibrating arm along the first direction is L and a length of the wide portion along the first direction is H,a relationship of 1.2%