Title:
Piezoelectric vibrator
Document Type and Number:
Japanese Patent JP5987153
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a piezoelectric vibrator based on a piezoelectric crystal having a larger electromechanical coupling coefficient than a crystal.SOLUTION: The piezoelectric vibrator is provided with a diaphragm 101 configured from a CaNbGaSiOcrystal. The diaphragm 101 is cut out at one of angles in a range of θ=22° 47' to 25° 45' centering around an X axis from the XZ plane of the CaNbGaSiOcrystal. An electrode 102 is formed on the principal plane of the tabular diaphragm 101, and an electrode 103 is formed on the reverse side of the diaphragm 101, so that the piezoelectric vibrator is actuated by applying a prescribed signal to each electrode.
Inventors:
Hitoshi Yoshida
Eguchi Osamu
Yuji Ohashi
Junichi Kushibiki
Eguchi Osamu
Yuji Ohashi
Junichi Kushibiki
Application Number:
JP2012242395A
Publication Date:
September 07, 2016
Filing Date:
November 02, 2012
Export Citation:
Assignee:
Kyocera Crystal Device Co., Ltd.
Tohoku University
Tohoku University
International Classes:
H03H9/17; H01L41/09; H01L41/18
Domestic Patent References:
| JP2004534222A | ||||
| JP2002271171A | ||||
| JP2002047099A |
Other References:
L, QUAN-MING et al.,"Growth and characterization of Ca3NbGa3Si2O14 crystal fibers for high-temperature applications",2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications,中国,IEEE,2014年11月 2日,第279-282頁
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa