Patent ID: 6683802
Filing Date: 2004-01-27
Classification: G11C

Abstract:
A magnetic memory device comprising:a plurality of word lines extending into a first direction; a plurality of bit lines extending into a second direction to intersect said plurality of word lines; and a plurality of magnetic memory cells which are provided at intersections of said plurality of word lines and said plurality of bit lines, and each of which comprises a ferromagnetic film having a changeable magnetic field, wherein data is written to the ferromagnetic film in a first one of said plurality of magnetic memory cells with a synthetic magnetic field generated by first current flowing on a specific one of said plurality of word lines associated with said first magnetic memory cell and second current flowing on a specific one of said plurality of bit lines associated with said first magnetic memory cell, a distance d between said first magnetic memory cell and one of said specific word line or said specific bit line meets the following equation (1), d&lE;pÃ—(&ggr;/(1âˆ’&ggr;))Â½(0where p is a distance between said first magnetic memory cell and a second magnetic memory cell adjacent to said first magnetic memory cell in a specific one of said first direction and said second direction, and &ggr; is a constant,wherein said distance d is defined based on a center position of said ferromagnetic film of said first magnetic memory cell and a center of a current distribution in the one of said specific word line and said specific bit line.