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:
Apr. 28, 2026
Filed:
Jan. 17, 2024
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Kazunori Inoue, Nagaokakyo, JP;
Takashi Yamane, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An acoustic wave device includes a support including a support substrate, a piezoelectric layer on the support, and a functional electrode on the piezoelectric layer and including at least one pair of electrodes. The support includes a cavity portion overlapping at least a portion of the functional electrode in plan view. The piezoelectric layer includes a membrane portion overlapping the cavity portion in plan view, and a supported portion supported by the support. A boundary covering electrode is provided on the piezoelectric layer over an entire or substantially an entire portion overlapping a boundary between the membrane portion and the supported portion in plan view.