Patent ID: 7184301
Filing Date: 2007-02-27
Classification: G11C

Abstract:
1. A magnetic random access memory comprising a memory cell array section which comprises: a plurality of first word lines which extend in a first direction; a plurality of first bit lines which extend in a second direction different from said first direction; and a plurality of memory cells, which are respectively provided for positions where said plurality of first word lines and said plurality of first bit lines intersect, and each of which is connected with a corresponding one of said plurality of first word lines and a corresponding one of said plurality of first bit lines, a selected memory cell as one of said plurality of memory cells is selected by the corresponding one of said plurality of first word lines as a first selected word line and the corresponding one of said plurality of first bit lines as a first selected bit line, wherein said memory cell comprises: a magnetic field generating section having an extension wiring line, and connected with said first selected bit line; a conductive pattern; and a magnetic resistance element having a spontaneous magnetization, storing a data and connected between said extension wiring line and said conductive pattern, wherein in a data write operation into said selected memory cell, a write data is written in said magnetic resistance element of said selected memory cell by a write electric current which flows through said extension wiring line of said magnetic field generating section of said selected memory cell, and a value of said write data is determined based on a direction of said write electric current, and in a data read operation from said selected memory cell, a read electric current flows through said extension wiring line of said magnetic field generating section and said magnetic resistance element in said selected memory cell.