Patent ID: 6757191
Filing Date: 2004-06-29
Classification: G11C

Abstract:
A thin film magnetic memory device, comprising:a memory array including a plurality of memory cells arranged in a matrix and divided into a plurality of column groups along a column direction, each memory cell including a tunneling magneto-resistance element having an electric resistance varying according to storage data magnetically written therein; a plurality of first signal lines provided respectively corresponding to the memory cell columns; and a plurality of second signal lines provided respectively corresponding to said plurality of column groups in each memory cell row, wherein each tunneling magneto-resistance element is includes a first magnetic layer electrically coupled between corresponding one of said plurality of first signal lines. a second magnetic layer electrically coupled between corresponding one of said plurality of second signal lines, and an insulating film interposed between said first and second magnetic layers and said plurality of first signal lines and said plurality of second signal lines are arranged in two different directions, respectively.