Patent ID: 6903965

Claim:
A thin film magnetic memory device, comprising: a plurality of memory cells arranged in rows and columns; a plurality of word lines provided corresponding to said rows, and selectively activated in the row including a selected memory cell that is selected from among said plurality of memory cells as a data read target; a plurality of bit lines arranged corresponding to said columns; and a data read circuit generating read data based on a current passing through that one of said plurality of bit lines which corresponds to said selected memory cell; said plurality of memory cells each including a magnetic storage element having an electric resistance changing in accordance with stored data and an access element turning on in response to activation of corresponding one of said word lines which are connected in series between corresponding one of said plurality of bit lines and a fixed voltage, said access element having a first field effect transistor with a gate coupled to said corresponding one of said word lines, and said first field effect transistor having a threshold voltage that is greater than a threshold voltage of another field effect transistor arranged on a same chip.