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US 12,218,266 B2Granted
Photodetection element, receiving device, and optical sensor device
AssigneeTDK Corporation
InventorsTakekazu Yamane, Tomohito Mizuno
Life of this patent
Estimating the term…
Abstract
A photodetection element includes a magnetic element including a first ferromagnetic layer to which light is applied, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer; a first electrode in contact with a first surface of the magnetic element, the first surface being located on a first ferromagnetic layer side of the magnetic element in a lamination direction; a second electrode in contact with a second surface of the magnetic element, the second surface being opposite to the first surface; and a first high thermal conductivity layer disposed outside of the first ferromagnetic layer and having higher thermal conductivity than the first electrode.
Claims17
A photodetection element comprising:
- a magnetic element including a first ferromagnetic layer to which light is applied, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer;
- a first electrode in contact with a first surface of the magnetic element, the first surface being located on a first ferromagnetic layer side of the magnetic element in a lamination direction;
- a second electrode in contact with a second surface of the magnetic element, the second surface being opposite to the first surface;
- and
- a first high thermal conductivity layer disposed outside of the first ferromagnetic layer and having higher thermal conductivity than the first electrode,
- wherein the first electrode includes an oxide having transparency to the light.
3 more elements
A photodetection element comprising:
- a magnetic element including a first ferromagnetic layer to which light is applied, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer;
- a first electrode in contact with a first surface of the magnetic element, the first surface being located on a first ferromagnetic layer side of the magnetic element in a lamination direction;
- a second electrode in contact with a second surface of the magnetic element, the second surface being opposite to the first surface;
- and
- a first high thermal conductivity layer disposed outside of the first ferromagnetic layer and having higher thermal conductivity than the first electrode;
- and
- a second high thermal conductivity layer,
- wherein the second high thermal conductivity layer is in contact with a sidewall of the first electrode, and
- wherein the second high thermal conductivity layer has higher thermal conductivity than the first electrode.
6 more elements
A photodetection element comprising:
- a magnetic element including a first ferromagnetic layer to which light is applied, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer;
- a first electrode in contact with a first surface of the magnetic element, the first surface being located on a first ferromagnetic layer side of the magnetic element in a lamination direction;
- a second electrode in contact with a second surface of the magnetic element, the second surface being opposite to the first surface;
- and
- a first high thermal conductivity layer disposed outside of the first ferromagnetic layer and having higher thermal conductivity than the first electrode,
- wherein the first high thermal conductivity layer is a metal, and
- wherein the first high thermal conductivity layer includes copper, gold, or silver.
4 more elements
A photodetection element comprising:
- a magnetic element including a first ferromagnetic layer to which light is applied, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer;
- a first electrode in contact with a first surface of the magnetic element, the first surface being located on a first ferromagnetic layer side of the magnetic element in a lamination direction;
- a second electrode in contact with a second surface of the magnetic element, the second surface being opposite to the first surface;
- and
- a first high thermal conductivity layer disposed outside of the first ferromagnetic layer and having higher thermal conductivity than the first electrode,
- wherein the first high thermal conductivity layer is an insulator, and
- wherein thermal conductivity of the first high thermal conductivity layer is greater than 40 W/m·K.
4 more elements
A photodetection element comprising:
- a magnetic element including a first ferromagnetic layer to which light is applied, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer;
- a first high thermal conductivity layer disposed outside of the first ferromagnetic layer and being a nonmagnetic metal;
- and
- a insulating layer located between the first ferromagnetic layer and the first high thermal conductivity layer,
- wherein the first high thermal conductivity layer has higher thermal conductivity than the insulating layer, and
- wherein the first high thermal conductivity layer includes copper, gold, or silver.
3 more elements
Dependencies are inferred from the claim text.