Invention Grant
- Patent Title: Joined body and surface acoustic wave device
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Application No.: US17422769Application Date: 2019-01-18
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Publication No.: US12081195B2Publication Date: 2024-09-03
- Inventor: Hirohisa Saito , Shigeru Nakayama , Yoshihiro Imagawa , Keiichiro Geshi , Yuichiro Yamanaka
- Applicant: Sumitomo Electric Industries, Ltd.
- Applicant Address: JP Osaka
- Assignee: Sumitomo Electric Industries, Ltd.
- Current Assignee: Sumitomo Electric Industries, Ltd.
- Current Assignee Address: JP Osaka
- Agency: Faegre Drinker Biddle & Reath
- International Application: PCT/JP2019/001552 2019.01.18
- International Announcement: WO2020/148909A 2020.07.23
- Date entered country: 2021-07-14
- Main IPC: H03H9/25
- IPC: H03H9/25 ; C04B35/443 ; H03H9/02 ; H03H9/64
Abstract:
Provided is a joined body including a piezoelectric substrate and a polycrystalline spinel substrate provided on one main surface of the piezoelectric substrate, wherein the polycrystalline spinel substrate has a porosity of 0.005% or more and 0.6% or less.
Public/Granted literature
- US20220069802A1 JOINED BODY AND SURFACE ACOUSTIC WAVE DEVICE Public/Granted day:2022-03-03
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