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. 18, 2022
Filed:
Jun. 10, 2019
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Tae Yoon Kim, Suwon-si, KR;
Tae Kyung Lee, Suwon-si, KR;
Sang Kee Yoon, Suwon-si, KR;
Sung Jun Lee, Suwon-si, KR;
Chang Hyun Lim, Suwon-si, KR;
Nam Jung Lee, Suwon-si, KR;
Tae Hun Lee, Suwon-si, KR;
Moon Chul Lee, Suwon-si, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Abstract
An acoustic resonator includes a substrate, an insulation layer disposed on the substrate, a resonating portion disposed on the insulation layer and having a first electrode, a piezoelectric layer, and a second electrode, stacked thereon, a cavity disposed between the insulation layer and the resonating portion, a protruded portion having a plurality of protrusions disposed on a lower surface of the cavity, and a hydrophobic layer disposed on an upper surface of the cavity and a surface of the protruded portion.