The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2019
Filed:
Aug. 08, 2016
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Michio Kadota, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An elastic wave device includes an IDT electrode disposed on a LiNbOsubstrate and an aluminum nitride film or a silicon nitride film is stacked to cover the IDT electrode and utilizes a leaky elastic wave. The IDT electrode includes a metal selected from a group consisting of Cu, Al, Au, Pt, and Ni. Euler angles of the LiNbOare (0°±5°, θ, 0°±5°), and when X denotes a wavelength-normalized thickness of the IDT electrode and Y denotes θ of the Euler angles, Y is set in a specific range depending on the range of the wavelength-normalized thickness of the IDT electrode, the range of the wavelength-normalized thickness of the aluminum nitride film or the silicon nitride film, and the kind of metal of which the IDT electrode is composed.