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:
Sep. 01, 2020
Filed:
Jan. 09, 2019
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-Do, KR;
Kyunghwa Yun, Hwaseong-si, KR;
Pansuk Kwak, Seoul, KR;
Chanho Kim, Seoul, KR;
Junghwa Lee, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A semiconductor memory device includes a substrate having a cell array region and a contact region, a stack structure including a plurality of gate electrodes on the cell array region and the contact region, a plurality of cell vertical channel structures extending through the stack structure on the cell array region, and a contact structure disposed beside of the stack structure on a top surface of the substrate and disposed along a line extending from the cell array region toward the contact region. The height of the contact structure on the cell array region is different from the height of the contact structure on the contact region.