公开(公告)号：US20210249061A1

公开(公告)日：2021-08-12

申请号：US17010455

申请日：2020-09-02

Applicant: KIOXIA CORPORATION

Inventor： Michael ARNAUD QUINSAT ,  Tsuyoshi Kondo ,  Masahiro Koike ,  Shiho Nakamura ,  Susumu Hashimoto ,  Masaki Kado ,  Nobuyuki Umetsu ,  Yasuaki Ootera ,  Megumi Yakabe ,  Agung Setiadi ,  Shigeyuki Hirayama ,  Yoshihiro Ueda ,  Tsutomu Nakanishi

IPC: G11C11/16

Abstract: According to one embodiment, a magnetic memory includes a magnetic body with two portions of a first dimension in a first direction which are spaced from each other a second direction and another portion that has a second dimension less than the first dimension in the first direction, which is between the two other portions. A circuit supplies a shift pulse to the magnetic body. The shift pulse includes a first pulse and a second pulse and moves a domain wall in the magnetic body along the second direction. The first pulse has a first pulse width. The second pulse has a second pulse width less than the first pulse width. The second pulse is supplied to the magnetic body after the first pulse.

公开(公告)号：US12041788B2

公开(公告)日：2024-07-16

申请号：US17467095

申请日：2021-09-03

Applicant: Kioxia Corporation

Inventor： Tsutomu Nakanishi ,  Yasuaki Ootera ,  Nobuyuki Umetsu ,  Michael Arnaud Quinsat ,  Masaki Kado ,  Susumu Hashimoto ,  Shiho Nakamura ,  Naoharu Shimomura ,  Tsuyoshi Kondo ,  Mutsumi Okajima

IPC: H10B61/00 ,  H10N50/01 ,  H10N50/10 ,  H10N50/80

CPC classification number: H10B61/22 ,  H10N50/01 ,  H10N50/10 ,  H10N50/80

Abstract: A storage device includes: a memory unit and a first pillar. The first pillar includes: a first region having a third portion between a first and a second portion respectively having a first and a second maximum diameter, and having a first minimum diameter, the first and second portions defining a first distance; a second region having a sixth portion between a fourth and a fifth portion respectively having a third and a fourth maximum diameter, and having a second minimum diameter, the fourth and fifth portions defining a second distance; and a third region between the first and second regions, having a ninth portion between a seventh and an eighth portion respectively having a fifth and a sixth maximum diameter, and having a third minimum diameter, the seventh and eighth portions defining a third distance shorter than each of the first and second distances.

公开(公告)号：US20210295889A1

公开(公告)日：2021-09-23

申请号：US17018332

申请日：2020-09-11

Applicant: Kioxia Corporation

Inventor： Masahiro Koike ,  Michael Arnaud Quinsat ,  Nobuyuki Umetsu ,  Tsutomu Nakanishi ,  Yasuaki Ootera ,  Tsuyoshi Kondo

IPC: G11C11/16 ,  H01L27/22 ,  G11C5/06

Abstract: According to one embodiment, a device includes a member including a first portion having a first dimension in first direction, a second portion spaced from the first portion and having a second dimension in the first direction, a third portion between the first and second portions and having a third dimension in the first direction, and a fourth portion between the first and third portions and having a fourth dimension in the first direction; and a circuit to supply a shift pulse including first and second pulses to the member and move a domain wall in the member. The third dimension is less than the first dimension. The second and fourth dimensions are less than the third dimension. A second value of the second pulse is less than a first value of the first pulse.