公开(公告)号：US10607898B2

公开(公告)日：2020-03-31

申请号：US16082914

申请日：2017-11-08

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang ,  Tomoyuki Sasaki

IPC: H01L27/108 ,  H01L21/8239 ,  G01R33/09 ,  H01L27/105 ,  H01L27/22 ,  H01L43/08 ,  H01L43/10

Abstract: A TMR element includes a magnetic tunnel junction, a side wall portion that covers a side surface of the magnetic tunnel junction, and a minute particle region that is disposed in the side wall portion. The side wall portion includes an insulation material. The minute particle region includes the insulation material and a plurality of minute magnetic metal particles that are dispersed in the insulation material. The minute particle region is electrically connected in parallel with the magnetic tunnel junction.

公开(公告)号：US11778925B2

公开(公告)日：2023-10-03

申请号：US17171623

申请日：2021-02-09

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang ,  Yohei Shiokawa ,  Tomoyuki Sasaki

IPC: H10N52/80 ,  H10B61/00 ,  H10N52/00 ,  H10N50/85 ,  H10N52/01

CPC classification number: H10N52/80 ,  H10B61/22 ,  H10N50/85 ,  H10N52/00 ,  H10N52/01

Abstract: A magnetic device includes a stacked body including a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer; a first insulating layer which covers side surfaces of the stacked body; and a radiator located outside the first insulating layer with respect to the stacked body, in which a distance between the stacked body and the radiator differs depending on a position of the stacked body in a stacking direction.

公开(公告)号：US11730001B2

公开(公告)日：2023-08-15

申请号：US17835458

申请日：2022-06-08

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang ,  Tomoyuki Sasaki

IPC: H10B99/00 ,  G01R33/09 ,  H01L27/105 ,  H10B61/00 ,  H10N50/10 ,  H10N50/85

CPC classification number: H10B99/00 ,  G01R33/093 ,  G01R33/098 ,  H01L27/105 ,  H10B61/22 ,  H10N50/10 ,  H10N50/85

Abstract: A TMR element includes a magnetic tunnel junction, a side wall portion that covers a side surface of the magnetic tunnel junction, and a minute particle region that is disposed in the side wall portion. The side wall portion includes an insulation material. The minute particle region includes the insulation material and a plurality of minute magnetic metal particles that are dispersed in the insulation material. The minute particle region is electrically connected in parallel with the magnetic tunnel junction.

公开(公告)号：US11636874B1

公开(公告)日：2023-04-25

申请号：US17509834

申请日：2021-10-25

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang

IPC: G11B5/31 ,  G11B5/127 ,  G11B5/23

Abstract: This magnetic recording head includes a main magnetic pole, a write shield, and an oscillation element. The oscillation element has a first oscillation portion, a second oscillation portion, and a non-magnetic conductive layer provided therebetween. The oscillation element has a first current path connecting the main magnetic pole and the non-magnetic conductive layer to each other, and a second current path connecting the write shield and the non-magnetic conductive layer to each other.

公开(公告)号：US10861754B2

公开(公告)日：2020-12-08

申请号：US16795714

申请日：2020-02-20

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang ,  Tomoyuki Sasaki

IPC: H01L21/8239 ,  G01R33/09 ,  H01L27/105 ,  H01L27/22 ,  H01L43/08 ,  H01L43/10

Abstract: A TMR element includes a magnetic tunnel junction, a side wall portion that covers a side surface of the magnetic tunnel junction, and a minute particle region that is disposed in the side wall portion. The side wall portion includes an insulation material. The minute particle region includes the insulation material and a plurality of minute magnetic metal particles that are dispersed in the insulation material. The minute particle region is electrically connected in parallel with the magnetic tunnel junction.

公开(公告)号：US12201035B2

公开(公告)日：2025-01-14

申请号：US18237014

申请日：2023-08-23

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang ,  Yohei Shiokawa ,  Tomoyuki Sasaki

IPC: H10N52/80 ,  H10B61/00 ,  H10N50/85 ,  H10N52/00 ,  H10N52/01

Abstract: A magnetic device includes a stacked body including a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer; a first insulating layer which covers side surfaces of the stacked body; and a radiator located outside the first insulating layer with respect to the stacked body, in which a distance between the stacked body and the radiator differs depending on a position of the stacked body in a stacking direction.

公开(公告)号：US11817134B2

公开(公告)日：2023-11-14

申请号：US17894449

申请日：2022-08-24

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang

IPC: G11B5/11

CPC classification number: G11B5/11

Abstract: This magnetic recording head includes a main magnetic pole, a write shield, and an element. The element has a first portion, a second portion, and a non-magnetic conductive layer disposed therebetween. The element has a first current path connecting the main magnetic pole and the non-magnetic conductive layer to each other, and a second current path connecting the write shield and the non-magnetic conductive layer to each other.

公开(公告)号：US11373915B2

公开(公告)日：2022-06-28

申请号：US17089194

申请日：2020-11-04

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang ,  Tomoyuki Sasaki

IPC: H01L21/8239 ,  G01R33/09 ,  H01L27/105 ,  H01L27/22 ,  H01L43/08 ,  H01L43/10

Abstract: A TMR element includes a magnetic tunnel junction, a side wall portion that covers a side surface of the magnetic tunnel junction, and a minute particle region that is disposed in the side wall portion. The side wall portion includes an insulation material. The minute particle region includes the insulation material and a plurality of minute magnetic metal particles that are dispersed in the insulation material. The minute particle region is electrically connected in parallel with the magnetic tunnel junction.

公开(公告)号：US20180337327A1

公开(公告)日：2018-11-22

申请号：US15976997

申请日：2018-05-11

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang ,  Yohei Shiokawa ,  Tomoyuki Sasaki

IPC: H01L43/02 ,  H01F10/32

CPC classification number: H01L43/02 ,  G11C11/161 ,  G11C11/1675 ,  H01F10/3254 ,  H01F10/3268 ,  H01F10/3286 ,  H01F10/329 ,  H01L27/222 ,  H01L43/08

Abstract: A spin current magnetization rotational element includes: a ferromagnetic metal layer; a spin-orbit torque wiring configured to extend in a first direction perpendicular to a lamination direction of the ferromagnetic metal layer and formed on one surface of the ferromagnetic metal layer; and a ferromagnetic electrode layer formed outside the ferromagnetic metal layer on any of surfaces of the spin-orbit torque wiring in a top view from the lamination direction. A direction of magnetization of the ferromagnetic metal layer is changeable by spin-orbit torque generated by a spin-orbit interaction in the spin-orbit torque wiring and an influence of spin diffused from the ferromagnetic electrode layer.

公开(公告)号：US12120890B2

公开(公告)日：2024-10-15

申请号：US18344150

申请日：2023-06-29

Applicant: TDK CORPORATION

Inventor： Zhenyao Tang ,  Tomoyuki Sasaki

IPC: H10B99/00 ,  G01R33/09 ,  H01L27/105 ,  H10B61/00 ,  H10N50/10 ,  H10N50/85

CPC classification number: H10B99/00 ,  G01R33/093 ,  G01R33/098 ,  H01L27/105 ,  H10B61/22 ,  H10N50/10 ,  H10N50/85

Abstract: A TMR element includes a magnetic tunnel junction, a side wall portion that covers a side surface of the magnetic tunnel junction, and a minute particle region that is disposed in the side wall portion. The side wall portion includes an insulation material. The minute particle region includes the insulation material and a plurality of minute magnetic metal particles that are dispersed in the insulation material. The minute particle region is electrically connected in parallel with the magnetic tunnel junction.