Title:
CRYSTAL ELEMENT AND CRYSTAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/008112
Kind Code:
A1
Abstract:
This crystal element 10 comprises: a vibration unit 11 as an AT cut crystal piece having a first surface 111 and a second surface 112 in a front-back relationship; and excitation electrodes 141, 142 positioned respectively on the first surface 111 and the second surface 112. When the dimension in the direction perpendicular to the first surface 111 and the second surface 112 is defined as thickness, when the thickness of the vibration unit 11 is 3-16 µm, the density of the excitation electrodes 141, 142 is 9.63-11.55 g/cm3.
Inventors:
TANAKA HAYATO (JP)
OGA TAKAHIRO (JP)
MATSUI YOSHIJI (JP)
MURAYAMA TOMOKI (JP)
NANBU KEITA (JP)
OGA TAKAHIRO (JP)
MATSUI YOSHIJI (JP)
MURAYAMA TOMOKI (JP)
NANBU KEITA (JP)
Application Number:
PCT/JP2022/026705
Publication Date:
February 02, 2023
Filing Date:
July 05, 2022
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
H03H9/19
Foreign References:
| JP2015109633A | 2015-06-11 | |||
| JP2001044785A | 2001-02-16 |
Attorney, Agent or Firm:
ARAFUNE, Hiroshi et al. (JP)
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