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:
Dec. 24, 2024
Filed:
Sep. 08, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Hyemi Lee, Seoul, KR;
Seongjae Go, Suwon-si, KR;
Hyeonjoo Song, Hwaseong-si, KR;
Sunjoong Park, Hwaseong-si, KR;
Hanyong Park, Hwaseong-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A semiconductor device including a peripheral circuit layer on a substrate; a lower stack and upper stack on the substrate; a stopper layer on the upper stack and including an insulating material; an upper mold layer on the stopper layer; a cell channel structure extending through the layers, a side surface of the cell channel structure contacting the stopper layer; first and second capping layers; a word line separation structure including a protrusion protruding toward the stopper layer; and a bit line contact plug connected to the cell channel structure, wherein an inner side surface of the stopper layer is offset from an inner side surface of the upper stack, and in contact with the word line separation structure.