Title:
COMPOSITE SUBSTRATE, AND ELASTIC WAVE ELEMENT USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/209131
Kind Code:
A1
Abstract:
A composite substrate 1 is provided with a first substrate 10 comprising a piezoelectric single crystal, and a second substrate 20 comprising a silicon single crystal joined to the first substrate 10. The planar orientation of the second substrate 20 is (111) and angle ψ of the Euler angles (φ, θ, ψ) is shifted away from 0°. Spurious bulk waves in a specific frequency band can thereby be reduced.
Inventors:
YAMAMOTO DAISUKE (JP)
KISHINO TETSUYA (JP)
KISHINO TETSUYA (JP)
Application Number:
PCT/JP2017/020116
Publication Date:
December 07, 2017
Filing Date:
May 30, 2017
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
H03H9/25
Foreign References:
JP2010232725A | 2010-10-14 | |||
JP2004343359A | 2004-12-02 | |||
JP2015145054A | 2015-08-13 | |||
JP3187231U | 2013-11-14 |
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