Title:
PIEZOELECTRIC BULK WAVE DEVICE AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2013/031747
Kind Code:
A1
Abstract:
A piezoelectric bulk wave device using a thickness-shear mode of vibration for LiTaO3 and having a high electromechanical coupling coefficient (k2) is obtained. The piezoelectric bulk wave device (1): comprises a piezoelectric thin plate (5) comprising LiTaO3, and first and second electrodes (6, 7) provided so as to come in contact with the piezoelectric thin plate (5): uses a thickness-shear vibration mode for the piezoelectric thin plate (5) comprising LiTaO3; and has LiTaO3 Euler angles (φ, θ, ψ) of 0° for φ and 54-107° for θ.
Inventors:
KANDO HAJIME (JP)
Application Number:
PCT/JP2012/071639
Publication Date:
March 07, 2013
Filing Date:
August 28, 2012
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
KANDO HAJIME (JP)
KANDO HAJIME (JP)
International Classes:
H03H9/17; H01L41/09; H01L41/18; H01L41/22; H03H3/02
Domestic Patent References:
| WO2009081651A1 | 2009-07-02 |
Foreign References:
| JP2010166203A | 2010-07-29 |
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
Patent business corporation Miyazaki and table-of-contents patent firm (JP)
Patent business corporation Miyazaki and table-of-contents patent firm (JP)
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Claims: