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US 12,710,489 B2Granted
Magnetic sensor
AssigneeTDK Corporation
InventorsTetsuya Hiraki, Atsushi Matsuo, Yoshitaka Sasaki
Life of this patent
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Abstract
A magnetic sensor includes: a magnetic detection element; a magnetic layer having a first surface and a second surface located opposite to each other in a reference direction and a side surface connecting the first surface and the second surface; and a surrounding layer that is formed of an organic material or a glass material and that is disposed entirely covering the side surface of the magnetic layer. The magnetic detection element is disposed at a position closer to the first surface than the second surface. The surrounding layer is not provided between the first surface of the magnetic layer and the magnetic detection element in the reference direction.
Claims14
A magnetic sensor comprising:
- at least one magnetic detection element configured to detect a target magnetic field;
- a magnetic layer having a first surface and a second surface located opposite to each other in a reference direction and a side surface connecting the first surface and the second surface;
- a surrounding layer that is formed of an organic material or a glass material and that is disposed entirely covering the side surface of the magnetic layer;
- and
- an insulating layer, wherein
- the at least one magnetic detection element is disposed at a position closer to the first surface than the second surface,
- the surrounding layer is not provided between the first surface of the magnetic layer and the at least one magnetic detection element in the reference direction, and
- the surrounding layer has a third surface and a fourth surface located opposite to each other in the reference direction and an outer peripheral surface connecting the third surface and the fourth surface, and
- the insulating layer is disposed entirely covering the outer peripheral surface of the surrounding layer.
6 more elements
A magnetic sensor comprising:
- a magnetic detection element configured to detect a target magnetic field;
- a magnetic layer having a first surface and a second surface located opposite to each other in a reference direction and a side surface connecting the first surface and the second surface;
- a surrounding layer that is formed of an organic material or a glass material and that is disposed entirely covering the side surface of the magnetic layer;
- and
- an insulating layer, wherein
- the magnetic detection element is disposed at a position closer to the first surface than the second surface, and
- the magnetic detection element overlaps, when seen in the reference direction, with the magnetic layer but not with the surrounding layer,
- the surrounding layer has a third surface and a fourth surface located opposite to each other in the reference direction and an outer peripheral surface connecting the third surface and the fourth surface, and
- the insulating layer is disposed entirely covering the outer peripheral surface of the surrounding layer.
6 more elements
A magnetic sensor comprising:
- a magnetic detection element configured to detect a target magnetic field;
- a magnetic layer having a first surface and a second surface located opposite to each other in a reference direction and a side surface connecting the first surface and the second surface;
- and
- a surrounding layer that is formed of an organic material or a glass material and that is disposed entirely covering the side surface of the magnetic layer, wherein
- the magnetic detection element is disposed at a position closer to the first surface than the second surface,
- the magnetic detection element overlaps, when seen in the reference direction, with the surrounding layer,
- at least a part of the magnetic detection element does not overlap, when seen in the reference direction, with the magnetic layer,
- the magnetic layer is a yoke configured to generate an output magnetic field including an output magnetic field component in a direction orthogonal to the reference direction when a magnetic field component including an input magnetic field component in a direction parallel to the reference direction is applied to the magnetic layer, and
- the magnetic detection element is configured to detect the output magnetic field component as the target magnetic field.
6 more elements
A magnetic sensor comprising:
- at least one magnetic detection element configured to detect a target magnetic field;
- a magnetic layer having a first surface and a second surface located opposite to each other in a reference direction and a side surface connecting the first surface and the second surface;
- and
- a surrounding layer that is formed of an organic material or a glass material and that is disposed entirely covering the side surface of the magnetic layer, wherein
- the at least one magnetic detection element is disposed at a position closer to the first surface than the second surface,
- the surrounding layer is not provided between the first surface of the magnetic layer and the at least one magnetic detection element in the reference direction, and
- the first surface, the surrounding layer and the at least one magnetic detection element are arranged in this order along the reference direction, and no structure exists other than the surrounding layer that is formed of the organic material or the glass material between the first surface of the magnetic layer and the at least one magnetic detection element in this order.
4 more elements
Dependencies are inferred from the claim text.