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1. (WO2017038679) SURFACE ACOUSTIC WAVE ELEMENT

Pub. No.:    WO/2017/038679    International Application No.:    PCT/JP2016/074970
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 27 01:59:59 CEST 2016
IPC: H03H 9/25
H03H 9/145
Applicants: KYOCERA CORPORATION
京セラ株式会社
Inventors: YAMAMOTO, Daisuke
山本 大輔
OKUMICHI, Takehiro
奥道 武宏
Title: SURFACE ACOUSTIC WAVE ELEMENT
Abstract:
Provided is a surface acoustic wave (SAW) element that includes a piezoelectric substrate, a support substrate attached to the bottom surface of the piezoelectric substrate, and an IDT electrode located on the top surface of the piezoelectric substrate. A resonant frequency and an anti-resonant frequency of a resonator 5, which includes the IDT electrode, are kept between the frequency of the lowest frequency bulk-wave spurious components and the frequency of the next lowest frequency bulk-wave spurious components.