发明名称 |
RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC APPARATUS, AND MOVING OBJECT |
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%<H/L<30.0% is satisfied. Assuming that the length of the arm portion in the X-axis direction is W1 and the length of the hammerhead in the X-axis direction is W2, the relationship of 1.5≦W2/W1≦10.0 is satisfied. |
申请公布号 |
US2014265736(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
US201414202596 |
申请日期 |
2014.03.10 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
YAMADA Akinori |
分类号 |
H01L41/02 |
主分类号 |
H01L41/02 |
代理机构 |
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代理人 |
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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, wherein each of the vibrating arms includes an arm portion and a wide portion, which is disposed on a side of the arm portion opposite to the base portion in plan view and which has a length along the second direction that is greater than the arm portion in plan view, assuming that 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%<H/L<30.0% is satisfied, and assuming that a length of the arm portion along the second direction is W1 and a length of the wide portion along the second direction is W2, a relationship of 1.5≦W2/W1≦10.0 is satisfied. |
地址 |
Tokyo JP |