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. 12, 2025
Filed:
Jul. 15, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Dongho Yu, Suwon-si, KR;
Jieun Lee, Suwon-si, KR;
Deoksung Hwang, Suwon-si, KR;
Gisung Kim, Seoul, KR;
Seungyoung Seo, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A semiconductor device may include bit line structures on a substrate, a contact plug structure on the substrate between the bit line structures, and a capacitor electrically connected to the contact plug structure. The contact plug structure may include a first contact plug, a second contact plug, and a third contact plug sequentially stacked. An upper surface of the second contact plug includes an upper recess. The third contact plug may fill the upper recess, and may protrude above the upper recess. An upper surface of the third contact plug may be higher than a top surface of the bit line structures.