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1. (WO2018221172) FILTER DEVICE

Pub. No.:    WO/2018/221172    International Application No.:    PCT/JP2018/018449
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue May 15 01:59:59 CEST 2018
IPC: H03H 9/25
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: JONOSONO, Shinya
城之薗 心弥
Title: FILTER DEVICE
Abstract:
Function elements (6) are disposed on one main surface (1a) of a piezoelectric substrate (1). Electrodes (5) are disposed at least on the one main surface (1a) of the piezoelectric substrate (1) and are electrically connected to the function elements (6). A cover (2) is disposed so as to oppose the one main surface (1a) of the piezoelectric substrate (1). A support layer (7) is disposed between the cover (2) and the one main surface (1a) of the piezoelectric substrate (1), and forms, between the piezoelectric substrate (1) and the cover (2), a hollow section (17) in which the function elements (6) are housed. Wires (3) are disposed at least on the side surface of the cover (2) and a main surface (2a) of the cover (2) on the side opposite to the main surface opposing the piezoelectric substrate (1). An electric conductor passes between the support layer (7) and the cover (2) and connects the wires (3) and the electrodes (5). The electric conductor is a part of each electrode (5) or each wire (3).