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. 21, 2025
Filed:
Nov. 16, 2023
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Sho Nagatomo, Nagaokakyo, JP;
Bryant Garcia, Mississauga, CA;
Ventsislav Yantchev, Sofia, BG;
Patrick Turner, Portola Valley, CA (US);
Robert B. Hammond, Rockville, MD (US);
Douglas Jachowski, Santa Cruz, CA (US);
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Abstract
An acoustic wave device is provided that includes a piezoelectric layer and first and second resonators. The first resonator includes a first functional electrode and a first dielectric film on the piezoelectric layer. The second resonator includes a second functional electrode and a second dielectric film on the piezoelectric layer. The piezoelectric layer includes first and second resonator portions respectively including portions of the first and second resonators. Moreover, a resonant frequency of the first resonator is lower than that of the second resonator. A thickness of the first resonator portion is greater than that of the second resonator portion, and ts/tp≤ts/tpis satisfied, where tp, tp, ts, and tsare respectively thicknesses of the first and second resonator portions and the first and second dielectric films.