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:
Feb. 03, 2026
Filed:
Jun. 07, 2023
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Minefumi Ouchi, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An acoustic wave device includes a support, a piezoelectric layer including a first principal surface adjacent to the support and a second principal surface, a first IDT electrode on the first principal surface and including first and second electrode fingers, and a second IDT electrode on the second principal surface not overlapping the first IDT electrode in plan view and including first and second electrode fingers. When d is a thickness of piezoelectric layer and p is a center-to-center distance between adjacent ones of the electrode fingers, d/p is about 0.5 or less in the first and second IDT electrodes. An insulating film is provided on the second principal surface overlapping the first IDT electrode in plan view, and a wiring electrode extending along the insulating film overlapping the first IDT electrode in plan view, the wiring electrode being connected to the second IDT electrode.