Piezoelectric vibrating piece and piezoelectric device
AssigneeNihon Dempa Kogyo Co., Ltd.
InventorShingo KAWANISHI
Life of this patent
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Abstract
Piezoelectric vibrating pieces are disclosed. An exemplary piece includes a base and at least a pair of vibrating arms connected to the base. The vibrating arms extend from one end of the base in a first direction. A vibrating root portion is situated between the vibrating arms. A pair of supporting arms extend, outboard of the vibrating arms, in the first direction from the one end of the base. Respective supporting root portions are situated between each vibrating arm and its outboard supporting arm, at the same position (denoted, e.g., K1, K2) in the first direction of the vibrating root portion.
Claims18
A piezoelectric vibrating piece, comprising:
- a base having a first end and an opposing second end;
- a pair of vibrating arms extending from the first end of the base in a first direction;
- a vibrating root portion situated on the base between the vibrating arms;
- a pair of supporting arms extending, outboard of the vibrating arms, from the first end of the base in the first direction;
- and
- a respective supporting root portion situated between each vibrating arm and respective supporting arm;
- the vibrating root portion and supporting root portions having substantially identical first-direction coordinates.
A piezoelectric vibrating piece, comprising:
- a base having a first end and an opposing second end;
- at least a pair of vibrating arms extending in a first direction from the first end of the base;
- a vibrating root portion situated between the vibrating arms;
- and
- a pair of supporting arms extending, outboard of the respective vibrating arms, in the first direction from the first end of the base;
- wherein a width between each vibrating arm and its respective supporting arm is substantially equal to a width between the vibrating arms.
Dependencies are inferred from the claim text.