Resonator element, resonator, oscillator, and electronic apparatus
AssigneeSeiko Epson Corporation
InventorAkinori Yamada
Life of this patent
Estimating the term…
Abstract
A resonator element includes a base section, a pair of vibrating arms projecting from the base section in a +Y-axis direction, and arranged in an X-axis direction intersecting with the Y-axis direction with a distance in a plan view, and a support arm disposed between the pair of vibrating arms and projecting from the base section in the +Y-axis direction. The base section includes a first shrunk-width portion disposed on an opposite side to the side on which the support arm projects taking the center of the base section as a boundary, and within a range of the distance, and having a length in the X-axis direction gradually decreasing with a distance from the support arm in a plan view.
Claims19
A resonator element comprising:
- a base section;
- a pair of vibrating arms projecting from the base section on a same side, and arranged with a distance in a direction intersecting with a direction of the projection in a plan view;
- and
- a support arm disposed between the pair of vibrating arms, and projecting from the base section on the same side as the pair of vibrating arms,
- wherein the base section includes a first shrunk-width portion disposed on an opposite side to the side on which the support arm projects taking a center of the base section as a boundary, and having a width in the intersecting direction gradually decreasing with a distance from the support arm in a plan view, and
- wherein a maximum value of a width of the first shrunk-width portion in the intersecting direction is larger than an amount of the distance.
A resonator element comprising:
- a base section;
- a pair of vibrating arms extending from one side of the base section;
- a support arm disposed between the pair of vibrating arms, and extending from the one side of the base section;
- a projection section disposed in an area on the other side of the base section, which is an opposite side of the one side of the base section, and corresponds to the support arm;
- and
- a pair of shrunk-width portions respectively disposed on both sides of the projection section, each having a width in a direction in which the pair of vibrating arms are arranged, the width increasing along a direction toward the one side of the base section, and
- wherein a maximum value of a width of each shrunk-width portion in the direction in which the pair of vibrating arms are arranged is larger than a distance from an end of the base to a symmetry axis of the base.
Dependencies are inferred from the claim text.