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:
May. 04, 2021
Filed:
Jan. 25, 2019
Samsung Electronics Co., Ltd., Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A semiconductor memory device includes lower electrodes, each of the lower electrodes surrounding an inner space, an upper support layer on top surfaces of the lower electrodes, the upper support layer being on the inner spaces surrounded by the lower electrodes, and an upper electrode on the upper support layer, the upper electrode filling first and second regions, the second region penetrating the upper support layer, and the first region extending from the second region into between the lower electrodes. Each of the lower electrodes includes a first portion overlapping with the first region, a top surface of the first portion being exposed by the upper support layer, and a second portion covered by the upper support layer, a top surface of the second portion being in contact with the upper support layer.