Patent ID: 7414879

Claim:
A semiconductor memory device comprising: a memory cell block including a plurality of memory cells connected in series between first node and second node, the memory cells including a magnetoresistive element and a switching transistor, which are connected in parallel, the magnetoresistive element being a spin injection type and including a fixed layer whose magnetization direction is fixed, a recording layer whose magnetization direction changes, and a non-magnetic layer interposed between the fixed layer and the recording layer; a bit line connected to the first node via a selection transistor; a word line connected to a gate of the switching transistor; a write line connected to the second node; and a top electrode and bottom electrode provided via the magnetoresistive element, wherein the top electrode and the bottom electrode supply a current perpendicular to a plane to the magnetoresistive element, and the magnetization direction of the recording layer changes by spin-polarized electrons included in the current.