US 12,658,220 B2Granted

Magnetic memory

AssigneeKioxia Corporation

InventorsYoshihiro Ueda, Nobuyuki Umetsu, Masaki Kado

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Abstract

A memory includes first magnetic-members extending in a first direction and having a first and s second end portions. Second magnetic-members are provided corresponding to the first magnetic-members, and extend in the first direction from an inside of cylinders of the first magnetic-members on a side of the second end portions. Third magnetic-members are provided above the second magnetic-members corresponding to the first magnetic-members, and are electrically disconnected from the second magnetic-members. First wires extend in a second direction, are arranged in a third direction intersecting the first and the second directions, and are electrically connected to the third magnetic-members arranged in the second direction. A fourth magnetic-member is provided around the second end portions of the first magnetic-members, and is electrically disconnected from the second and third magnetic-members. Second wires are provided on a side of the first end portions of the first magnetic-members.

Claims29

Dependent claims

A magnetic memory comprising:

a plurality of first magnetic members extending in a first direction, each of which is cylindrical and has a first end portion and a second end portion;
a plurality of second magnetic members provided corresponding to the first magnetic members, and extending in the first direction from an inside of cylinders of the first magnetic members on a side of the second end portions;
a plurality of third magnetic members provided above the second magnetic members corresponding to the first magnetic members, and electrically disconnected from the second magnetic members;
a plurality of first wires extending in a second direction intersecting the first direction, arranged adjacent to each other in a third direction intersecting the first direction and the second direction, and electrically connected to the third magnetic members arranged in the second direction;
a fourth magnetic member provided around the second end portions of the first magnetic members, and electrically disconnected from the third magnetic members;
and
a plurality of second wires provided on a side of the first end portions of the first magnetic members.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/829,968Filed 10 Sep 2024
Priority: JP 2024-02223616 Feb 2024
Published: US 2025/0266063 A121 Aug 2025
Granted: 16 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G11C 5/08
Arrangements for interconnecting storage elements electrically, e.g. by wiring: for interconnecting magnetic elements, e.g. toroidal cores
H10B 61/22
Comprising components having three or more electrodes, e.g. transistors: of the field-effect transistor [FET] type
H10N 50/10
Galvanomagnetic devices: magnetoresistive devices
G11C
Static stores