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:
Nov. 03, 2020
Filed:
Jun. 14, 2017
Taiyo Yuden Co., Ltd., Tokyo, JP;
Kohei Ito, Tokyo, JP;
Osamu Kawachi, Tokyo, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
An acoustic wave device includes: a piezoelectric substrate; a comb-shaped electrode located on the piezoelectric substrate; a pair of reflectors located on the piezoelectric substrate, the pair of reflectors sandwiching the comb-shaped electrode; a first dielectric film located on the piezoelectric substrate, the first dielectric film covering the pair of reflectors and having side surfaces in regions between the comb-shaped electrode and the pair of reflectors; and a second dielectric film located on the piezoelectric substrate, the second dielectric film covering the comb-shaped electrode and being in contact with the side surfaces of the first dielectric film.