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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 10446212 B1

PDFFull Text
Date of Patent:
Oct. 15, 2019

Filed:

Mar. 12, 2018

Magnetic memory device

Applicant:

Toshiba Memory Corporation, Tokyo, JP;

Inventors:

Susumu Hashimoto, Nerima Tokyo, JP;

Yasuaki Ootera, Yokohama Kanagawa, JP;

Tsuyoshi Kondo, Kawasaki Kanagawa, JP;

Takuya Shimada, Kawasaki Kanagawa, JP;

Michael Arnaud Quinsat, Yokohama Kanagawa, JP;

Masaki Kado, Kamakura Kanagawa, JP;

Nobuyuki Umetsu, Kawasaki Kanagawa, JP;

Shiho Nakamura, Fujisawa Kanagawa, JP;

Tomoya Sanuki, Suzuka Mie, JP;

Yoshihiro Ueda, Yokohama Kanagawa, JP;

Shinji Miyano, Yokohama Kanagawa, JP;

Hideaki Aochi, Yokkaichi Mie, JP;

Yasuhito Yoshimizu, Yokkaichi Mie, JP;

Yuichi Ito, Yokkaichi Mie, JP;

Assignee:

Toshiba Memory Corporation, Tokyo, JP;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.

Primary Examiner:

Hoai V Ho

Assistant Examiner:

Jay W Radke

Int. Cl.
CPC ...
G11C 11/16 (2006.01); H01L 27/22 (2006.01); H01L 43/08 (2006.01); H01L 43/02 (2006.01); H01F 10/32 (2006.01); H01L 43/10 (2006.01);
U.S. Cl.
CPC ...
G11C 11/1675 (2013.01); G11C 11/161 (2013.01); G11C 11/1673 (2013.01); H01L 27/228 (2013.01); H01L 43/02 (2013.01); H01L 43/08 (2013.01); H01F 10/329 (2013.01); H01F 10/3254 (2013.01); H01F 10/3286 (2013.01); H01L 43/10 (2013.01);
Abstract

According to one embodiment, a magnetic memory device includes a first magnetic portion, a first electrode, a second electrode, a third electrode, a second magnetic portion, a first nonmagnetic portion, and a controller. The first magnetic portion includes an extension portion and a third portion. The extension portion includes a first portion and a second portion. The third portion is connected to the second portion. The first electrode is electrically connected to the first portion. At least a portion of the third portion is positioned between the second electrode and the third electrode. The second magnetic portion is provided between the second electrode and the at least a portion of the third portion. The first nonmagnetic portion is provided between the second magnetic portion and the at least a portion of the third portion. The controller is electrically connected to the first, second electrode, and third electrodes.

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