US 12,218,266 B2
Photodetection element, receiving device, and optical sensor device
Takekazu Yamane, Tokyo (JP); and Tomohito Mizuno, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Jan. 14, 2022, as Appl. No. 17/576,467.
Claims priority of application No. 2021-005590 (JP), filed on Jan. 18, 2021; and application No. 2021-167503 (JP), filed on Oct. 12, 2021.
Prior Publication US 2022/0231181 A1, Jul. 21, 2022
Int. Cl. H01L 31/09 (2006.01); H10N 50/10 (2023.01)
CPC H01L 31/09 (2013.01) [H10N 50/10 (2023.02)] 17 Claims
OG exemplary drawing
 
1. 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.