Patent ID: 7292470
Filing Date: 2007-11-06
Classification: G11C

Abstract:
1. A thin film magnetic memory device comprising: a plurality of memory cells arranged in rows and columns, and each storing data written in response to application of first and second data write magnetic fields; a plurality of write word lines provided corresponding to said rows for passing, in a predetermined direction, a first data write current producing said first data write magnetic field in a selected row, respectively; a plurality of bit lines provided corresponding to said columns for passing, in a direction in accordance with a write data, a second data write current producing said second data write magnetic field in a selected column, respectively; and a plurality of current return lines arranged in the same direction as said plurality of bit lines, wherein each of said bit lines corresponds to one of said plurality of current return lines, and said second data write current flows through selected one of said bit lines corresponding to said selected column and the corresponding current return line having an end on one side electrically coupled to an end on one side of the selected bit line corresponding to said selected column.