Patent ID: 7248497
Filing Date: 2007-07-24
Classification: G11C,H01L

Abstract:
1. A spin-injection field effect transistor comprising: first and second source/drain diffusion layers; a first ferromagnetic layer which is formed on the first source/drain diffusion layer, a magnetization direction of the first ferromagnetic layer being fixed; a second ferromagnetic layer which is formed on the second source/drain diffusion layer, a magnetization direction of the second ferromagnetic layer being changed; a tunnel barrier layer which is provided in at least one of a section between the first source/drain diffusion layer and the first ferromagnetic layer and a section between the second source/drain diffusion layer and the second ferromagnetic layer; a channel which is located between the first and second source/drain diffusion layers; a gate insulating layer which is formed on the channel; and a gate electrode which is formed on the gate insulating layer.