Patent ID: 8120950

Claim:
A semiconductor device comprising: a first magnetic random access memory configured to include a first memory cell; and a second magnetic random access memory configured to include a second memory cell operating at higher speed than said first memory cell and is provided on the same chip together with said first magnetic random access memory, wherein said first memory cell includes: a first magnetization free layer, a second magnetization free layer, a first nonmagnetic layer configured to be provided adjacent to said second magnetization free layer, and a first magnetization pinned layer configured to be provided adjacent to said first nonmagnetic layer and on an opposite side to said second magnetization free layer, wherein said first magnetization free layer is formed of a ferromagnetic material and has magnetic anisotropy in a film thickness direction, wherein each of said second magnetization free layer and said first magnetization pinned layer is formed of a ferromagnetic material and has in-plane magnetic anisotropy, wherein said first magnetization free layer includes: a first magnetization pinned region configured to have pinned magnetization, a second magnetization pinned region configured to have pinned magnetization, and a magnetization free region configured to be connected to said first magnetization pinned region and said second magnetization pinned region and have invertible magnetization, wherein said magnetization free region is magnetically coupled to said second magnetization free layer, wherein a center of gravity of said magnetization free region is shifted from a center of gravity of said second magnetization free layer in a certain direction as an in-plane direction, wherein said magnetization of said first magnetization pinned layer is pinned to a direction substantially parallel to said certain direction, wherein said second memory cell includes: a third magnetization free layer, a third magnetization pinned layer, and a second nonmagnetic layer provided between said third magnetization free layer and said third magnetization pinned layer, wherein each of said third magnetization free layer and said third magnetization pinned layer is formed of a ferromagnetic material.