# US 2026/0098918 A1 · Spin hall magnetic sensor

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- Number: US 2026/0098918 A1
- Document ID: US20260098918A1
- Status: Published application
- Kind: A1
- Application number: 19/060,079
- Filed: 2025-02-21
- Published: 2026-04-09
- Earliest claimed: 2024-10-08
- Assignees: Hyundai Motor Company; Kia Corporation; Korea Institute of Science and Technology
- Applicants: Hyundai Motor Company; Kia Corporation; Korea Institute of Science and Technology
- Inventors: Joon-Hyun KWON; Sang-Hyeok YANG; Su-Jung NOH; Young-Chan KIM; Han-Saem LEE; Ji-Sung LEE; Byoung-Chul MIN; Jong-Bum CHOI; Dong-Soo HAN
- Web page: https://patentgrep.com/patent/US20260098918A1

## CPC

- G01R 33/075: {Hall devices configured for spinning current measurements}
- G01R 33/093: {using multilayer structures, e.g. giant magnetoresistance sensors (thin magnetic films H01F10/00)}
- H10N 52/85: Materials of the active region
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- H10N: ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR

## Abstract

A spin Hall magnetic sensor includes a plurality of magnetic thin film bodies each including a magnetic layer stacked on a non-magnetic layer, and a plurality of non-magnetic bodies disposed between the plurality of magnetic thin film bodies. The plurality of magnetic thin film bodies include a first magnetic thin film body, a second magnetic thin film body disposed axially symmetrically to the first magnetic thin film body with respect to a first axis, a third magnetic thin film body disposed axially symmetrically to the second magnetic thin film body with respect to a second axis orthogonal to the first axis, and a fourth magnetic thin film body disposed axially symmetrically to the third magnetic thin film body with respect to the first axis.

## Claims

### Claim 1

A spin Hall magnetic sensor comprising:
a plurality of magnetic film bodies, each of the plurality of magnetic film bodies comprising a magnetic layer stacked on a non-magnetic layer; and
a plurality of non-magnetic bodies disposed between the plurality of magnetic film bodies,
wherein the plurality of magnetic film bodies comprise:
a first magnetic film body,
a second magnetic film body disposed axially symmetrically to the first magnetic film body with respect to a first axis in a plane,
a third magnetic film body disposed axially symmetrically to the second magnetic film body with respect to a second axis orthogonal to the first axis in the plane, and
a fourth magnetic film body disposed axially symmetrically to the third magnetic film body with respect to the first axis in the plane.

### Claim 2 (depends on 1)

The spin Hall magnetic sensor of claim 1, wherein each of the plurality of magnetic film bodies is configured to, in response to a current provided to a corresponding one of the plurality of magnetic film bodies, generate (i) a spin current in the non-magnetic layer of the corresponding magnetic film body and (ii) a spin orbit torque (SOT) in the magnetic layer of the corresponding magnetic film body.

### Claim 3 (depends on 2)

The spin Hall magnetic sensor of claim 2, wherein the plurality of non-magnetic bodies comprise:
a first non-magnetic body that connects the first magnetic film body with the second magnetic film body;
a second non-magnetic body that connects the second magnetic film body with the third magnetic film body;
a third non-magnetic body that connects the third magnetic film body with the fourth magnetic film body; and
a fourth non-magnetic body that connects the fourth magnetic film body with the first magnetic film body.

### Claim 4 (depends on 3)

The spin Hall magnetic sensor of claim 3, wherein the plurality of non-magnetic bodies have (i) a metal alloy structure configured to generate an SOT or (ii) a superlattice structure.

### Claim 5 (depends on 3)

The spin Hall magnetic sensor of claim 3, wherein each of the plurality of magnetic film bodies has three or more bodies that connected to one another.

### Claim 6 (depends on 3)

The spin Hall magnetic sensor of claim 3, wherein each of the plurality of magnetic film bodies comprises:
a first body having a first end that is connected to one of the plurality of non-magnetic bodies, the first body extending in a longitudinal direction that defines a preset angle with respect to an input direction of the current provided to the corresponding magnetic film body;
a second body disposed parallel to the first body; and
a first connector that connects a second end of the first body to an end of the second body.

### Claim 7 (depends on 6)

The spin Hall magnetic sensor of claim 6, wherein each of the first body, the second body, and the first connector comprises the magnetic layer.

### Claim 8 (depends on 6)

The spin Hall magnetic sensor of claim 6, wherein the preset angle defined between the longitudinal direction of the first body and the input direction of the current is greater than 0° and less than 90°.

### Claim 9 (depends on 6)

The spin Hall magnetic sensor of claim 6, wherein the preset angle defined between the longitudinal direction of the first body and the input direction of the current is in a range of 45°±5°.

### Claim 10 (depends on 6)

The spin Hall magnetic sensor of claim 6, wherein a longitudinal direction of the first connector defines an angle of 90°±5° with the input direction of the current.

### Claim 11 (depends on 1)

The spin Hall magnetic sensor of claim 1, wherein each of the plurality of magnetic film bodies is bent a plurality of times.

### Claim 12 (depends on 11)

The spin Hall magnetic sensor of claim 11, wherein each of the plurality of magnetic film bodies comprises:
a first body having a first end that is connected to a corresponding one of the plurality of non-magnetic bodies, the first body extending in a first direction that defines a preset angle with respect to an input direction of a current provided to the corresponding magnetic film body;
a first bridge that is bent from a second end of the first body and extends in a second direction, the first bridge having a first end connected to the second end of the first body; and
a second body that is bent from a second end of the first bridge and extends parallel to the first body in the first direction, the second body having a first end connected to a second end of the first bridge.

### Claim 13 (depends on 12)

The spin Hall magnetic sensor of claim 12, wherein each of the plurality of magnetic film bodies further comprises:
a second bridge that is bent from a second end of the second body and extends in the second direction parallel to the first bridge, the second bridge having a first end connected to the second end of the second body; and
a third body that is bent from a second end of the second bridge, extends parallel to the second body in the first direction, and connected to another of the plurality of non-magnetic bodies.

### Claim 14 (depends on 12)

The spin Hall magnetic sensor of claim 12, wherein the preset angle defined between the first direction of the first body and the input direction of the current is greater than 0° and less than 90°.

### Claim 15 (depends on 12)

The spin Hall magnetic sensor of claim 12, wherein the preset angle defined between the first direction of the first body and the input direction of the current is in a range of 45°±5°.

### Claim 16 (depends on 12)

The spin Hall magnetic sensor of claim 12, wherein the second direction of the first bridge defines an angle of 90°±5° with the input direction of the current.

### Claim 17 (depends on 12)

The spin Hall magnetic sensor of claim 12, wherein a sensitivity of the spin Hall magnetic sensor is defined by (i) the preset angle and (ii) a number of the plurality of times in which each of the plurality of magnetic film bodies is bent.
