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:
Oct. 06, 2020
Filed:
Jan. 18, 2019
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, Gyeonggi-do, KR;
Abstract
A semiconductor memory device includes a peripheral circuit structure including a peripheral circuit insulating layer, a middle connection structure on the peripheral circuit insulating layer, the middle connection structure including a middle connection insulating layer, and a bottom surface of the middle connection insulating layer is in contact with a top surface of the peripheral circuit insulating layer, stack structures on sides of the middle connection structure, and channel structures extending vertically through each of the stack structures, wherein at least one side surface of the middle connection insulating layer is an inclined surface, a lateral sectional area of the middle connection insulating layer decreasing in an upward direction oriented away from the peripheral circuit insulating layer.