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:
Sep. 16, 2025
Filed:
Aug. 26, 2024
Suzhou Dabo New Material Technology Co., Ltd., Suzhou, CN;
SUZHOU DABO NEW MATERIAL TECHNOLOGY CO., LTD., Suzhou, CN;
Abstract
A dual-mode surface acoustic wave device and a preparation method thereof are provided. The dual-mode surface acoustic wave device includes a substrate, a piezoelectric layer and an interdigital electrode which are successively stacked in a selected direction. The thickness of the interdigital electrode is 10 nm-5 μm to excite a first-order horizontal shear wave mode, so that the dual-mode surface acoustic wave device has two acoustic wave modes, namely, a ground state horizontal shear wave and a first-order horizontal shear wave. The dual-mode surface acoustic wave device with two acoustic wave modes, namely, the ground state horizontal shear wave and the first-order horizontal shear wave can be prepared, so that the dual-mode surface acoustic wave device can support a filtering function in more frequency bands in 5G communication, and meets the development trend of miniaturization and broadband of surface acoustic wave filters.