ACOUSTIC WAVE DEVICE, DEMULTIPLEXER AND COMMUNICATION DEVICE

Title:

ACOUSTIC WAVE DEVICE, DEMULTIPLEXER AND COMMUNICATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/174064

Kind Code:

A1

Abstract:

According to the present invention, an SAW device comprises: a piezoelectric substrate; a supporting substrate which is bonded to the lower surface of the piezoelectric substrate and has a lower thermal expansion coefficient than the piezoelectric substrate; an IDT electrode which is positioned on the piezoelectric substrate; a cover which forms a space above the IDT electrode; and a plurality of strip conductors which are arranged in parallel with each other on the cover and at least partially overlap the space in a perspective plan view.

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Inventors:

KIMURA TOSHIYA (JP)
NAMBU MASAKI (JP)
NAGATA MASARU (JP)
MATSUOKA TOSHIKI (JP)

Application Number:

PCT/JP2018/011050

Publication Date:

September 27, 2018

Filing Date:

March 20, 2018

Export Citation:

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Assignee:

KYOCERA CORP (JP)

International Classes:

H03H9/25

Domestic Patent References:

WO2016129662A1

2016-08-18

Foreign References:

JP2016123020A	2016-07-07
JP2008227748A	2008-09-25
JP2004129223A	2004-04-22

Attorney, Agent or Firm:

IIJIMA, YASUHIRO (JP)

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