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:
Jul. 28, 2026
Filed:
Jan. 18, 2024
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Katsuya Daimon, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An acoustic wave device includes a support, a piezoelectric layer on the support, and an IDT electrode on the piezoelectric layer and includes a pair of busbars and electrode fingers. The support includes an acoustic reflection portion overlapping at least a portion of the IDT electrode. d/p is about 0.5 or less. Some of the electrode fingers are connected to one of the busbars, others of the electrode fingers are connected to another of the busbars. When viewed from a direction in which adjacent electrode fingers face each other, a region where the adjacent electrode fingers overlap each other is an intersection region. A region between the intersection region and the pair of busbars includes a pair of gap regions. A mass addition film is provided in at least a portion of at least one of the gap regions.