Resonator element, resonator, oscillator, electronic apparatus, and moving object having reduced vibration leakage
AssigneeSeiko Epson Corporation
InventorsAkinori Yamada, Osamu Iwamoto
Life of this patent
Estimating the term…
Abstract
A resonator element includes a base portion which includes one end portion and the other end portion opposing the one end portion in a plan view, and a pair of vibrating arms which extend along a first direction from the one end portion of the base portion. The base portion includes a reduced width portion in which a width is gradually decreased along a second direction intersecting the first direction toward a direction side which is separated from the base portion along the first direction, in at least one of the one end portion and the other end portion, and a fixing portion is provided between the one end portion and the other end portion of the base portion.
Claims20
A resonator element comprising:
- a base portion which includes one end portion and the other end portion opposing the one end portion in a plan view;
- and
- only one pair of vibrating arms which extend along a first direction from the one end portion of the base portion, wherein
- the base portion includes a reduced width portion in which a width of the base portion in a second direction intersecting the first direction is gradually decreased along the first direction, in at least one of the one end portion and the other end portion,
- a fixing portion for fixing the resonator element is provided between the one end portion and the other end portion of the base portion, and
- a length L, in the first direction, from an outer edge of the other end portion of the base portion to a connection portion of the vibrating arm, is less than a distance Ws, in the second direction, from a center of one of the vibrating arms to a center of the other of the vibrating arms, the connection portion connecting the vibrating arms to the base portion.
Dependencies are inferred from the claim text.