Patent ID: 7372757
Filing Date: 2008-05-13
Classification: G11C

Abstract:
1. A magnetic memory device comprising: a plurality of first metal lines arranged in parallel on a substrate, each of the plurality of first metal lines including a plurality of magnetic domains with variable magnetization directions; a plurality of second metal lines arranged on the substrate, the plurality of second metal lines being arranged perpendicular to the first metal lines and including tunnels through which the plurality of first metal lines pass; a plurality of first input units, each first input unit being connected to a corresponding one of the plurality of first metal lines and each of the plurality of first input units supplying a current to move magnetic domains within the corresponding one of the plurality of first metal lines; a plurality of second input units, each second input unit being connected to a corresponding one of the plurality of second metal lines and each second input unit applying a current to switch magnetization directions of magnetic domains arranged inside the tunnels; and a plurality of sensing units, each of the plurality of sensing units being connected to a corresponding one of the plurality of second metal lines, and sensing an electromotive force caused by magnetic domain walls passing through the tunnels.