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:
Feb. 12, 2019
Filed:
Feb. 10, 2017
Yil-hyung Lee, Hwaseong-si, KR;
Jong-kyu Kim, Seongnam-si, KR;
Jongsoon Park, Suwon-si, KR;
Jongchul Park, Seongnam-si, KR;
Yil-hyung Lee, Hwaseong-si, KR;
Jong-Kyu Kim, Seongnam-si, KR;
Jongsoon Park, Suwon-si, KR;
Jongchul Park, Seongnam-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
Abstract
A semiconductor memory device that includes at least a lower contact plug on a semiconductor substrate, a magnetic tunnel junction of the lower contact plug, and a barrier pattern on a sidewall of the lower contact plug may further include an insulation pattern on the sidewall of the lower contact plug. The insulation pattern may be between the barrier pattern and the magnetic tunnel junction pattern. The insulation pattern may include an upper portion and a lower portion whose width is greater than a width of the upper portion.