Title:
ELASTIC WAVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/198654
Kind Code:
A1
Abstract:
The present invention provides a low-loss elastic wave device that utilizes a plate wave S0 mode. This elastic wave device 1 is provided with: a piezoelectric body 5 comprising lithium niobate and provided directly or indirectly on a support substrate 2; and an IDT electrode 6 provided directly or indirectly on the piezoelectric body 5, wherein: when the elastic wave wavelength defined by the electrode finger pitch of the IDT electrode 6 is denoted by λ, the thickness of the piezoelectric body 5 is 1 λ or less; a propagating plate wave S0 mode is utilized in the piezoelectric body 5; and the Euler angles of the lithium niobate are (0°±10°, θ, 90°±10°) where θ is 0°-180° inclusive.
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Inventors:
MIMURA MASAKAZU (JP)
Application Number:
PCT/JP2018/012964
Publication Date:
November 01, 2018
Filing Date:
March 28, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/25; H03H9/145
Domestic Patent References:
| WO2017043151A1 | 2017-03-16 | |||
| WO2016047255A1 | 2016-03-31 | |||
| WO2013021948A1 | 2013-02-14 |
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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