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. 19, 2022
Filed:
Jul. 16, 2020
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Won Han, Suwon-si, KR;
Tae Yoon Kim, Suwon-si, KR;
Chang Hyun Lim, Suwon-si, KR;
Sang Uk Son, Suwon-si, KR;
Jae Hyoung Gil, Suwon-si, KR;
Dae Hun Jeong, Suwon-si, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Abstract
A bulk-acoustic wave resonator includes: a first electrode disposed above a substrate; a piezoelectric layer disposed to cover at least a portion of the first electrode; and a second electrode disposed to cover at least a portion of the piezoelectric layer. A plurality of steps are formed in any one or any combination of any two or more of the first electrode, the piezoelectric layer, and the second electrode in an active region in which the first electrode, the piezoelectric layer, and the second electrode are all disposed to overlap one another.