Invention Grant
- Patent Title: Crystal vibration element, and crystal vibrator equipped with crystal vibration element
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Application No.: US15943858Application Date: 2018-04-03
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Publication No.: US11277115B2Publication Date: 2022-03-15
- Inventor: Toru Kidu , Takashi Hase , Takeshi Kamada , Hiroaki Kaida , Shigeaki Sugimura
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Nagaokakyo
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Nagaokakyo
- Agency: Arent Fox LLP
- Priority: JPJP2015-200232 20151008,JPJP2016-059077 20160323,JPJP2016-089765 20160427
- Main IPC: H03H9/19
- IPC: H03H9/19 ; H03H9/10 ; H01L41/18 ; H03H9/05 ; H03H9/02 ; H01L41/338 ; H03H9/13 ; H01L41/09

Abstract:
A crystal vibration element that includes a crystal piece that has a prescribed crystal orientation, and a first direction and a second direction in a plan view thereof; and excitation electrodes that are respectively provided on front and rear surfaces of the crystal piece in order to excite a thickness shear vibration in the crystal piece upon application of an alternating electric field. A vibration distribution of the crystal piece has a vibration region that extends in a band-like shape in the second direction of the crystal piece and non-vibration regions that are adjacent to opposed sides of the vibration region in the first direction of the crystal piece.
Public/Granted literature
- US20180226943A1 CRYSTAL VIBRATION ELEMENT, AND CRYSTAL VIBRATOR EQUIPPED WITH CRYSTAL VIBRATION ELEMENT Public/Granted day:2018-08-09
Information query
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