Patent ID: 6822897
Filing Date: 2004-11-23
Classification: G11C

Abstract:
A thin film magnetic memory device comprising:a plurality of memory cells arranged in rows and columns along first and second directions, said memory cells neighboring to each other in said first direction forming first groups, and said memory cells neighboring to each other in said second direction forming second groups; a plurality of data lines arranged in said first direction, and corresponding to said first groups, respectively; and a plurality of first and second gate interconnections arranged in said second direction, and corresponding to said second groups, respectively, wherein each of said memory cells includes; a magneto-resistance element having an electric resistance variable in accordance with magnetically written storage data, and an access transistor for electrically coupling said magneto-resistance element between a fixed voltage and corresponding one of said plurality of data lines in a data read operation; each of said access transistors is turned on and off in accordance with a voltage on the one gate interconnection selected from the corresponding one first gate interconnection and the corresponding one second gate interconnection among said plurality of first and second sate interconnections and predetermined for said first group; and each of said memory cells has a layout inverted in said second direction with respect to that of the memory cell neighboring in said first direction.