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:
May. 26, 2026
Filed:
Apr. 18, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A memory device includes: a gate stack on a substrate, including insulation layers and gate electrodes alternately stacked in a vertical direction, and defining a through hole in the vertical direction; and a pillar structure in the through hole, the pillar structure including: a plurality of channel portions in the through hole to face the gate electrodes and having annular horizontal cross-sections; a plurality of conductive layers in the through hole to face the insulation layers, having annular horizontal cross-sections, and having inner walls protruding toward a center of the through hole with respect to inner walls of the channel portions; and a variable resistance material layer on the inner walls of the channel portions and the inner walls of the conductive layers, in the through hole, and a first portion of the variable resistance material layer overlaps the conductive layers in the vertical direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile