Title:
ELASTIC WAVE DEVICE AND METHOD FOR MANUFACTURING ELASTIC WAVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/262607
Kind Code:
A1
Abstract:
Provided is an elastic wave device in which a substrate has a piezoelectric predetermined region on a first major surface facing one side in a direction normal to the substrate. An excitation electrode is positioned in the predetermined region. A cover covers the excitation electrode and the first major surface from the one side. An enclosing portion covers a side of the substrate and a side of the cover, and has an insulating property. A wiring layer includes an external terminal exposed on the one side, and overlaps the cover and the enclosing portion from the one side. A connecting conductor connects the excitation electrode and the external terminal. The connecting conductor includes a first portion extending from a position on the substrate side relative to an upper surface of the cover on the one side to the external terminal. The first portion has a melting point of more than or equal to 450℃.
Inventors:
NAMBU MASAKI (JP)
Application Number:
PCT/JP2020/025204
Publication Date:
December 30, 2020
Filing Date:
June 26, 2020
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
H03H3/08; H03H9/25
Foreign References:
| JP2019106698A | 2019-06-27 | |||
| JP2017011736A | 2017-01-12 | |||
| JP2006196565A | 2006-07-27 | |||
| JP2014212466A | 2014-11-13 |
Attorney, Agent or Firm:
IIJIMA, YASUHIRO (JP)
Download PDF:
Previous Patent: AIR CLEANING DEVICE
Next Patent: FABRIC, 3D SHAPED FABRIC, AND PRODUCTION METHOD THEREFOR
Next Patent: FABRIC, 3D SHAPED FABRIC, AND PRODUCTION METHOD THEREFOR