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:
Aug. 25, 2015
Filed:
Jul. 10, 2014
Applicant:
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 45/00 (2006.01); H01L 27/10 (2006.01); H01L 27/24 (2006.01); H01L 27/22 (2006.01);
U.S. Cl.
CPC ...
H01L 45/1683 (2013.01); H01L 27/101 (2013.01); H01L 27/2472 (2013.01); H01L 45/04 (2013.01); H01L 45/06 (2013.01); H01L 45/1233 (2013.01); H01L 45/1253 (2013.01); H01L 45/1273 (2013.01); H01L 45/1608 (2013.01); H01L 45/1675 (2013.01); H01L 27/224 (2013.01);
Abstract
According to an example embodiment, a variable resistance memory device includes a lower electrode that includes a spacer-shaped first sub lower electrode and a second sub lower electrode covering a curved sidewall of the first sub lower electrode. The second sub lower electrode extends upward to protrude above the top of the first sub lower electrode. The lower electrode includes an upward-tapered shape.