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:
Mar. 25, 2025
Filed:
Dec. 06, 2021
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Kenichi Uesaka, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An acoustic wave device includes a dielectric film covering an IDT electrode. The IDT electrode includes first and second edge regions and first and second high acoustic velocity regions. The first and second edge regions are low acoustic velocity regions. The first and second high acoustic velocity regions are on outer sides of an intersecting width region where first and second electrode fingers are adjacent to each other in an acoustic wave propagation direction. A thickness of the dielectric film on the first and second edge regions is greater than that of the dielectric film on the first and second high acoustic velocity regions.