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. 23, 2016
Filed:
Oct. 28, 2014
Kilho Lee, Hwaseong-si, KR;
Sangyong Kim, Suwon-si, KR;
Woojin Kim, Seoul, KR;
Kyungtae Nam, Suwon-si, KR;
Kilho Lee, Hwaseong-si, KR;
Sangyong Kim, Suwon-si, KR;
Woojin Kim, Seoul, KR;
KyungTae Nam, Suwon-si, KR;
Abstract
A magnetic memory device is provided. The magnetic memory device includes a plurality of variable resistance devices connected to a word line, and a plurality of bit lines, each of which provides an electrical pathway between a corresponding one of the variable resistance devices and a read and write circuit. Each of the variable resistance devices includes a free layer and a pinned layer spaced apart from each other and having a tunnel barrier interposed therebetween, an assistant layer spaced apart from the tunnel barrier and having the free layer interposed therebetween, and an exchange coupling layer arranged between the free layer and the assistant layer. The exchange coupling layer has an electric polarization, which results from its ferroelectric property, and having a direction that can be changed by a voltage applied to the corresponding one of the bit lines.