Patent ID: 6992923

Claim:
A method of operating a single transistor type magnetic random access memory device, the method comprising: (a) applying current Ix to bit lines for addressing, applying current ly to word lines, making magnetized directions of magnetic layers of a magnetic tunnel junction in an anti-parallel direction, forming a resistance R 1 , and writing data “1” at a selected memory cell; (b) applying current Ix to the bit lines for addressing, applying current ly in a direction opposite to the current Iy to the word lines, making the magnetized directions of the magnetic layers of the magnetic tunnel junction in a parallel direction, forming a resistance R 0 , and writing data “0” at a selected memory cell; and (c) applying a voltage Vds to the bit lines, applying a voltage Vin to the word lines, sensing channel current flowing from a drain that is a first doped region to a source that is a second doped region, and reading the data stored at the step (a) or (b).