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1. (WO2018203430) ELASTIC WAVE ELEMENT AND METHOD FOR MANUFACTURING SAME

Pub. No.:    WO/2018/203430    International Application No.:    PCT/JP2018/005882
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Wed Feb 21 00:59:59 CET 2018
IPC: H03H 9/25
H03H 3/08
Applicants: NGK INSULATORS, LTD.
日本碍子株式会社
Inventors: TAI Tomoyoshi
多井 知義
NAMERIKAWA Masahiko
滑川 政彦
YOSHINO Takashi
吉野 隆史
Title: ELASTIC WAVE ELEMENT AND METHOD FOR MANUFACTURING SAME
Abstract:
[Problem] To provide an elastic wave element in which a piezoelectric material substrate and a support substrate are joined together via a joining layer, wherein the elastic wave element has a structure with which it is possible to further improve elastic wave propagation loss and frequency temperature characteristics. [Solution] An elastic wave element comprising a piezoelectric material substrate 2A, an electrode 4 on the piezoelectric material substrate 2A, a support substrate 3, and a joining layer 1A for joining the piezoelectric material substrate 2A and the support substrate 3. The joining layer 1A comprises a crystal.