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:
Oct. 14, 2025
Filed:
Sep. 19, 2023
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Akihiro Iyama, Nagaokakyo, JP;
Yuta Ishii, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An acoustic wave device includes a support substrate, a piezoelectric layer, a functional electrode, a first trace, a second trace, and an attenuation layer. The piezoelectric layer is located on the support substrate and includes first and second main surfaces on opposite sides. The functional electrode is located on the first or second main surface of the piezoelectric layer. The first trace is located on the piezoelectric layer and connected to the functional electrode. The second trace is located on the piezoelectric layer and faces the first trace. The first and second traces are connected to different potentials. The attenuation layer is located between the first trace and the second trace when viewed in plan. The attenuation layer is made of a dielectric material lower in density than the piezoelectric layer.