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:
Jun. 04, 2024
Filed:
Nov. 18, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An integrated circuit device comprising a base structure, a gate stack on the base structure and comprising a plurality of gate electrodes spaced apart from each other, a first upper insulating layer on the gate stack, a plurality of channel structures that penetrate the gate stack, each of the plurality of channel structures comprises a respective alignment key protruding from the gate stack, a second upper insulating layer that overlaps the respective alignment key of each of the plurality of channel structures, a top supporting layer on the second upper insulating layer, a bit line on the top supporting layer, and a plurality of bit line contacts that electrically connect respective ones of the plurality of channel structures to the bit line. A sidewall of the first upper insulating layer includes a first step.