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:
Mar. 24, 2020
Filed:
Sep. 07, 2018
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Inventors:
Assignee:
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/108 (2006.01); H01L 27/22 (2006.01); G11C 8/08 (2006.01); H01L 23/535 (2006.01); H01L 27/24 (2006.01); G11C 8/14 (2006.01);
U.S. Cl.
CPC ...
H01L 27/10897 (2013.01); G11C 8/08 (2013.01); G11C 8/14 (2013.01); H01L 23/535 (2013.01); H01L 27/10885 (2013.01); H01L 27/10888 (2013.01); H01L 27/10891 (2013.01); H01L 27/228 (2013.01); H01L 27/2436 (2013.01);
Abstract
A semiconductor memory device includes a word line buried in an upper portion of a substrate and extending in a first direction, and a word line contact plug connected to the word line. An end portion of the word line includes a contact surface exposed in the first direction, and the word line contact plug is connected to the contact surface.