Invention Grant
- Patent Title: Resonator element, resonator, oscillator, electronic apparatus, and mobile object
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Application No.: US14541759Application Date: 2014-11-14
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Publication No.: US09628046B2Publication Date: 2017-04-18
- Inventor: Akinori Yamada , Takashi Yamazaki
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2013-237476 20131116; JP2013-237477 20131116; JP2013-237480 20131116
- Main IPC: H03H9/02
- IPC: H03H9/02 ; H03H9/05 ; H03H9/21 ; H03H9/15 ; H03H3/04 ; H03B5/32 ; G01L1/10 ; H03H9/215
Abstract:
A resonator element includes a resonator blank having a base portion, a vibrating arm, a linking portion, and a connecting portion connects the base portion and the linking portion to each other, in which, when a thickness of the resonator blank is set to T, a width of the base portion is set to W1, and a width of the connecting portion is set to W2, a relationship of 50 μm≦T≦210 μm is satisfied, and a relationship of 0.067≦W2/W1≦0.335 is satisfied, and in which, when a width of the arm section of the vibrating arm is set to W3, and a width of the hammer head is set to W4, a relationship of W4≧2.8×W3 is satisfied.
Public/Granted literature
- US20150135931A1 RESONATOR ELEMENT, RESONATOR, OSCILLATOR, ELECTRONIC APPARATUS, AND MOBILE OBJECT Public/Granted day:2015-05-21
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