US 2009/0289531 A1Published application

Piezoelectric resonator

AssigneeStatek Corporation

InventorsYUE FANG, SHIH CHUANG

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Abstract

Embodiments of the present disclosure are directed to a piezoelectric resonator. The resonator can have a base defining at least a first base portion and a second base portion and two or more vibrating arms projecting from the first base portion, the first vibrating arm being substantially parallel to the second vibrating arm. The resonator can define a generally planar first main surface and a generally planar second main surface defined by the base and the first and second vibrating arms wherein the first main surface is generally parallel to the second main surface. At least one groove can be formed in at least one of the first and second main surfaces of each of the first and second vibrating arms. The resonator can further have at least one vibration isolation arm projecting from the base, the vibration isolation arm being approximately perpendicular to the two or more vibrating arms.

Claims24

Dependent claims

A piezoelectric resonator comprising:

a base defining a first base portion and a second base portion;
a first and a second vibrating arm projecting from a first edge of the first base portion of the base;
a first vibration isolation arm projecting from a first lateral edge of the first portion of the base, and a second vibration isolation arm projecting from a second lateral edge of the first portion of the base so as to be collinear with the first vibration isolation arm, the second lateral edge being opposite and approximately parallel to the first lateral edge, and the first and second vibration isolation arms being approximately perpendicular to the first and second vibrating arms;
a generally planar first main surface and a generally planar second main surface defined by the base and the first and second vibrating arms, the first main surface being generally parallel to the second main surface;
and
an opening formed in each of the first and second vibrating arms, the opening projecting from the first main surface to the second main surface of at least one of the first and second vibrating arms, the opening being configured to conduct an electrical current between the first and second main surfaces of the resonator;
wherein:
the first and second vibration isolation arms are sized and configured such that a width of the first base portion is greater than a width of any portion of the second base portion.

5 more elements

Dependencies are inferred from the claim text.