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:
Jun. 13, 2023
Filed:
Apr. 05, 2021
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventors:
Cheoljin Cho, Hwaseong-si, KR;
Jaesoon Lim, Seoul, KR;
Jaehyoung Choi, Hwaseong-si, KR;
Jungmin Park, Seoul, KR;
Assignee:
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10B 12/00 (2023.01); H01L 27/108 (2006.01); H01L 49/02 (2006.01);
U.S. Cl.
CPC ...
H01L 27/10805 (2013.01); H01L 28/55 (2013.01); H01L 28/65 (2013.01);
Abstract
A capacitor and a DRAM device, the capacitor including a lower electrode; a dielectric layer structure on the lower electrode, the dielectric layer structure including a first zirconium oxide layer, a hafnium oxide layer, and a second zirconium oxide layer sequentially stacked; and an upper electrode on the dielectric layer structure, wherein the hafnium oxide layer has a tetragonal crystal phase or an orthorhombic crystal phase.