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:
Apr. 12, 2022
Filed:
Jan. 02, 2020
Samsung Electronics Co., Ltd., Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
Disclosed are three-dimensional semiconductor memory devices including an electrode structure including gate electrodes stacked in a first direction, a lower pattern group including lower vertical patterns that are in a lower portion of the electrode structure and are connected to the substrate, and an upper pattern group including upper vertical patterns that are in an upper portion of the electrode structure. The upper vertical patterns may be connected to the lower vertical patterns, respectively. The devices may also include two common source plugs spaced apart from each other in a second direction. The electrode structure may be between the two common source plugs. An upper portion of the lower pattern group has a first width in the second direction, an upper portion of the upper pattern group has a second width in the second direction, and the first width may be greater than the second width.