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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 10482941 B1

PDFFull Text
Date of Patent:
Nov. 19, 2019

Filed:

Sep. 12, 2018

Magnetic memory device

Applicant:

Toshiba Memory Corporation, Tokyo, JP;

Inventors:

Takuya Shimada, Tokyo, JP;

Yasuaki Ootera, Kanagawa, JP;

Tsuyoshi Kondo, Kanagawa, JP;

Nobuyuki Umetsu, Kanagawa, JP;

Michael Arnaud Quinsat, Kanagawa, JP;

Masaki Kado, Kanagawa, JP;

Susumu Hashimoto, Tokyo, JP;

Shiho Nakamura, Kanagawa, JP;

Hideaki Aochi, Mie, JP;

Tomoya Sanuki, Mie, JP;

Shinji Miyano, Kanagawa, JP;

Yoshihiro Ueda, Kanagawa, JP;

Yuichi Ito, Mie, JP;

Yasuhito Yoshimizu, Mie, JP;

Assignee:

Toshiba Memory Corporation, Tokyo, JP;

Attorney:

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

Primary Examiner:

Tan T Nguyen

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

According to one embodiment, a magnetic memory device includes a first memory portion, a first conductive portion, a first interconnection, and a controller. The first memory portion includes a first magnetic portion including a first portion and a second portion, a first magnetic layer, and a first nonmagnetic layer provided between the second portion and the first magnetic layer. The first conductive portion is electrically connected to the first portion. The first interconnection is electrically connected to the first magnetic layer. The controller is electrically connected to the first conductive portion and the first interconnection. The controller applies a first pulse having a first pulse height and a first pulse length between the first conductive portion and the first interconnection in a first write operation and applies a second pulse having a second pulse height and a second pulse length in a first shift operation.

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