Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ACOUSTIC WAVE ELEMENT, FILTER ELEMENT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/009373
Kind Code:
A1
Abstract:
An acoustic wave element 1 according to the present disclosure comprises a piezoelectric substrate 2 and an IT electrode 3 that is arranged on the piezoelectric substrate 2. The IDT electrode 3 has a multilayer structure which is composed of a first layer 35 that is formed from Al and a second layer 37 that is formed from a CuAl2 alloy. The second layer 37 enables the acoustic wave element 1 to have excellent electric power resistance.

Inventors:
KASAMATSU, Naofumi (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
SHIMOZONO, Masahisa (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
KISHINO, Tetsuya (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
NANBU, Masaki (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
LI, Hongnian (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
DOUMOTO, Tatsuya (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
Application Number:
JP2018/025581
Publication Date:
January 10, 2019
Filing Date:
July 05, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 〒6128501, JP)
International Classes:
H03H9/145; H03H9/25; H03H9/64
Domestic Patent References:
WO2017111170A12017-06-29
Foreign References:
JP2002185283A2002-06-28
JP2005516517A2005-06-02
JP2018014715A2018-01-25
Download PDF: