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Patent Searching and Data


Title:
ELASTIC WAVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/184466
Kind Code:
A1
Abstract:
Provided is an elastic wave device that can adjust sound velocity with high accuracy and causes hardly any acoustic loss. An elastic wave device 1, wherein an energy confinement layer 3, a piezoelectric film 4, and an IDT electrode 7 are laminated on a support substrate 2, and sound velocity adjustment films 11, 12 are each provided to at least a portion between the piezoelectric film 4 and the support substrate 2, and are made from a material different from that of the piezoelectric film 4.

Inventors:
OKUNAGA HIROMU (JP)
Application Number:
PCT/JP2020/009800
Publication Date:
September 17, 2020
Filing Date:
March 06, 2020
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/145; H03H9/25
Domestic Patent References:
WO2018131454A12018-07-19
WO2018198654A12018-11-01
Foreign References:
JP2017224890A2017-12-21
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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