公开(公告)号：US20220302208A1

公开(公告)日：2022-09-22

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: H01L27/22 ,  H01L43/02 ,  H01L43/08 ,  H01L43/12

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：US20220077383A1

公开(公告)日：2022-03-10

申请号：US17196737

申请日：2021-03-09

Applicant: Kioxia Corporation

Inventor： Tsuyoshi KONDO ,  Nobuyuki UMETSU ,  Yasuaki OOTERA ,  Tsutomu NAKANISHI ,  Shigeyuki HIRAYAMA

IPC: H01L43/02 ,  H01L27/22 ,  H01L43/12

Abstract: A magnetic memory according to an embodiment includes: a first wiring and a second wiring; a nonmagnetic conductor extending in a first direction; a first magnetic member including a first portion electrically connected to the first wiring and a second portion electrically connected to the second wiring, the first magnetic member extending in the first direction from the first portion to the second portion to surround the nonmagnetic conductor; an insulation portion disposed between the nonmagnetic conductor and the first magnetic member; and a controller electrically connected to the nonmagnetic conductor, the first wiring, and the second wiring.

公开(公告)号：US20210280635A1

公开(公告)日：2021-09-09

申请号：US17189107

申请日：2021-03-01

Applicant: Kioxia Corporation

Inventor： Hiroki TOKUHIRA ,  Tsuyoshi KONDO ,  Mutsumi OKAJIMA ,  Yoshihiro UEDA

IPC: H01L27/22 ,  H01L43/02 ,  H01L43/12

Abstract: A magnetic memory of an embodiment includes: a first magnetic member including a first and second portions and extending in a first direction; a first and second wirings disposed to be apart from the first magnetic member and extending in a second direction intersecting the first direction, the first and the second wirings being separated from each other in a third direction intersecting the first and second directions, the first magnetic member being disposed to be apart from a region between the first wiring and the second wiring in the first direction; and a second magnetic member surrounding at least parts of the first and second wirings, the second magnetic member including a third portion located to be more distant from the first magnetic member, a fourth portion located to be closer to the first magnetic member, and a fifth portion located in the region.