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. 09, 2018
Filed:
Mar. 11, 2016
Skyworks Filter Solutions Japan Co., Ltd., Kadoma-Shi, JP;
Tomoya Komatsu, Osaka-Fu, JP;
Hidehito Shimizu, Kadoma, JP;
Joji Fujiwara, Osaka-Fu, JP;
Tetsuya Tsurunari, Osaka-Fu, JP;
Hiroyuki Nakamura, Osaka-Fu, JP;
SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD., Kadoma-Shi, JP;
Abstract
An acoustic wave element comprising a lithium tantalate substrate having the Euler angles (φ, θ, ψ), a first component φ satisfying 10°≤φ≤50°; and an electrode disposed on the lithium tantalate substrate and configured to excite a main acoustic wave of wavelength λ, the electrode having a density ρM satisfying ρM≥ρTi where ρTi represents a density of titanium (Ti), and a thickness hM of the electrode satisfies 0.141×exp(0.075ρM)λ≤hM≤0.134λ Embodiments of the present disclosure minimize a thickness of the electrode and suppress a spurious Rayleigh wave signal.