US 12,488,813 B2
Magnetic domain wall motion element and magnetic array
Toshiki Gushi, Tokyo (JP); Shogo Yamada, Tokyo (JP); and Tomoyuki Sasaki, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Jan. 30, 2024, as Appl. No. 18/426,708.
Prior Publication US 2025/0246212 A1, Jul. 31, 2025
Int. Cl. G11C 5/00 (2006.01); G11C 5/08 (2006.01); G11C 11/16 (2006.01); H10B 61/00 (2023.01); H10N 50/10 (2023.01); H10N 50/80 (2023.01)
CPC G11C 5/08 (2013.01) [G11C 11/161 (2013.01); G11C 11/1675 (2013.01); H10B 61/22 (2023.02); H10N 50/10 (2023.02); H10N 50/80 (2023.02)] 11 Claims
OG exemplary drawing
 
1. A magnetic domain wall motion element comprising a first ferromagnetic layer, an in-plane wiring, a first via wiring, a second via wiring, and a third via wiring,
wherein a position of the in-plane wiring in a stacking direction is different from that of the first ferromagnetic layer,
wherein the first via wiring connects the first ferromagnetic layer and the in-plane wiring to each other,
wherein the second via wiring is connected to the in-plane wiring at a different position from the first via wiring,
wherein the third via wiring is connected to the in-plane wiring at a different position from the first via wiring and the second via wiring, and
wherein, when centers of the second via wiring and the third via wiring are projected on an axis passing through a center of the first via wiring when viewed in the stacking direction and extending in a second direction orthogonal to a first direction that is a longitudinal direction of the first ferromagnetic layer and the stacking direction, the first via wiring is interposed between projection points of the second via wiring and the third via wiring to the axis in the second direction.