Patent ID: 8324672

Claim:
A spin transport device comprising: a channel made of a semiconductor material; a magnetization fixed layer arranged on the channel via a first insulating layer; a magnetization free layer arranged on the channel via a second insulating layer; a first wiring electrically connected to the magnetization fixed layer; and a second wiring electrically connected to the magnetization free layer; wherein the spin transport device satisfies at least one of following condition A and condition B, Condition A: The first wiring includes a vertical portion which extends in a thickness direction of the magnetization fixed layer on the magnetization fixed layer, and a horizontal portion connected to the vertical portion by an end of the horizontal portion, the horizontal portion extending from the vertical portion in a direction crossing the thickness direction of the magnetization fixed layer and having a thickness smaller than a thickness of the vertical portion in the thickness direction of the magnetization fixed layer, and Condition B: The second wiring includes a vertical portion which extends in a thickness direction of the magnetization free layer on the magnetization free layer, and a horizontal portion connected to the vertical portion by an end of the horizontal portion, the horizontal portion extending from the vertical portion in a direction crossing the thickness direction of the magnetization free layer and having a thickness smaller than a thickness of the vertical portion in the thickness direction of the magnetization free layer.