US 12,035,639 B2
Spin-current magnetization rotational element and spin orbit torque type magnetoresistance effect element
Tomoyuki Sasaki, Tokyo (JP); and Yohei Shiokawa, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Feb. 24, 2023, as Appl. No. 18/113,747.
Application 18/113,747 is a division of application No. 17/077,165, filed on Oct. 22, 2020, granted, now 11,641,784.
Application 17/077,165 is a division of application No. 16/467,157, granted, now 10,910,554, issued on Feb. 2, 2021, previously published as PCT/JP2018/029754, filed on Aug. 8, 2018.
Claims priority of application No. 2017-172399 (JP), filed on Sep. 7, 2017.
Prior Publication US 2023/0200259 A1, Jun. 22, 2023
Int. Cl. H10N 52/00 (2023.01); H10B 61/00 (2023.01); H10N 50/85 (2023.01); H10N 52/01 (2023.01); H10N 52/80 (2023.01)
CPC H10N 52/80 (2023.02) [H10B 61/00 (2023.02); H10N 50/85 (2023.02); H10N 52/00 (2023.02); H10N 52/01 (2023.02)] 7 Claims
OG exemplary drawing
 
1. A spin orbit torque type magnetoresistance effect element, comprising:
a spin orbit torque wiring having a first surface and a second surface opposite to the first surface and extending in a first direction;
a magnetoresistance effect element mounted in a first region of the spin orbit torque wiring on the first surface in a second direction intersecting the first direction; and
a via wiring connecting in a second region of the spin orbit torque wiring on the second surface and extending in the second direction from the second surface, the second region being outside in the first direction of the first region, wherein
the magnetoresistance effect element comprises a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer interposed between the first ferromagnetic layer and the second ferromagnetic layer,
the first surface protrudes as a whole,
a first portion is defined as a portion of the first surface in the first region and is closest to the magnetoresistance effect element in the second direction,
a second portion is defined as a portion of the first surface at one end and an other end of the spin orbit torque wiring and is furthest from the magnetoresistance effect element in the second direction, and
the first portion and the second portion are connected by an inclined surface whose distance from the magnetoresistance effect element in the second direction varies monotonically therebetween.