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:
Apr. 07, 2026
Filed:
Aug. 14, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A semiconductor device includes an active pattern on a substrate. A bit line structure is on the active pattern. A spacer structure is on a sidewall of the bit line structure. A lower contact plug directly contacts the spacer structure. The spacer structure includes a first spacer covering an upper sidewall of the lower contact plug and a second spacer covering a lower sidewall of the lower contact plug and a portion of a lower surface of the lower contact plug. The lower contact plug includes an extension portion covered by the first and second spacers and a protrusion portion protruding from the first and second spacers. A bottom surface of the protrusion portion is disposed at a level that is lower than or equal to a level of a bottom surface of the second spacer.