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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.:

US 12439828 B1

PDFFull Text
Date of Patent:
Oct. 07, 2025

Filed:

Feb. 22, 2022

Spin-orbit torque device and manufacturing method thereof

Applicants:

Hyundai Motor Company, Seoul, KR;

Kia Corporation, Seoul, KR;

Korea Advanced Institute of Science and Technology, Daejeon, KR;

Inventors:

Ji-Sung Lee, Suwon-si, KR;

Joon-Hyun Kwon, Hwaseong-si, KR;

Su-Jung Noh, Seoul, KR;

Han-Saem Lee, Seoul, KR;

Byong-Guk Park, Daejeon, KR;

Jaimin Kang, Daejeon, KR;

Jeong-Mok Kim, Daejeon, KR;

Soogil Lee, Daejeon, KR;

Assignees:

HYUNDAI MOTOR COMPANY, Seoul, KR;

KIA CORPORATION, Seoul, KR;

KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon, KR;

Attorney:

MCDONNELL BOEHNEN HULBERT & BERGHOFF LLP

Primary Examiner:

Peter Bradford

Int. Cl.
CPC ...
H01L 43/08 (2006.01); G11C 11/16 (2006.01); H01F 10/32 (2006.01); H01L 27/22 (2006.01); H01L 43/10 (2006.01); H01L 43/12 (2006.01); H10B 61/00 (2023.01); H10N 50/01 (2023.01); H10N 50/10 (2023.01); H10N 50/85 (2023.01);
U.S. Cl.
CPC ...
H10N 50/10 (2023.02); G11C 11/161 (2013.01); H01F 10/3286 (2013.01); H10B 61/00 (2023.02); H10N 50/01 (2023.02); H10N 50/85 (2023.02);
Abstract

Disclosed herein is a spin-orbit torque device including a lower ferromagnetic layer, a non-magnetic layer bonded to the lower ferromagnetic layer, and an upper ferromagnetic layer bonded to the non-magnetic layer, wherein a magnetization orientation of the lower ferromagnetic layer is randomly distributed. According to the present disclosure, it is possible to provide a magnetic memory device which cannot be physically duplicated and has reconfigurability using a spin-orbit torque.

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