Invention Grant
- Patent Title: Surface acoustic wave device
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Application No.: US15539157Application Date: 2015-12-24
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Publication No.: US10648868B2Publication Date: 2020-05-12
- Inventor: Youichi Nonogaki , Yoshitaka Kinoshita , Takashi Akahane , Satoshi Sohda
- Applicant: CITIZEN WATCH CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: CITIZEN WATCH CO., LTD.
- Current Assignee: CITIZEN WATCH CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: HEA Law PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3b607432
- International Application: PCT/JP2015/086141 WO 20151224
- International Announcement: WO2016/104659 WO 20160630
- Main IPC: G01K11/26
- IPC: G01K11/26 ; H03H9/02 ; G01K7/32 ; H03H9/25 ; H01L41/107 ; H01L41/18 ; H03H9/64 ; H01L41/41
Abstract:
Provided is a surface acoustic wave device using a novel and steadily suppliable piezoelectric material that is resistant to a high-temperature environment and enables the surface acoustic wave device to use a 2 GHz to 2.5 GHz band or higher. The surface acoustic wave device includes: a piezoelectric substrate formed from a monocrystal of gehlenite (CAS: Ca2Al(AlSi)O7); and interdigital transducers formed on a surface acoustic wave propagation plane of the piezoelectric substrate.
Public/Granted literature
- US20170350769A1 SURFACE ACOUSTIC WAVE DEVICE Public/Granted day:2017-12-07
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