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:
Aug. 18, 2020
Filed:
May. 21, 2019
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
Disclosed is a three-dimensional semiconductor device including a stack structure on a substrate and including electrodes that are vertically stacked on top of each other on a first region of a substrate, a vertical structure penetrating the stack structure and including a first semiconductor pattern, a data storage layer between the first semiconductor pattern and at least one of the electrodes, a transistor on a second region of the substrate, and a first contact coupled to the transistor. The first contact includes a first portion and a second portion on the first portion. Each of the first portion and the second portions has a diameter that increases with an increasing vertical distance from the substrate. A diameter of an upper part of the first portion is greater than a diameter of a lower part of the second portion.