Patent ID: 8089803
Filing Date: 2012-01-03
Classification: G11C,H01L

Abstract:
1. A magnetic random access memory of a spin transfer process, said magnetic random access memory comprising: a plurality of magnetic memory cells; a current supply unit which selects a target memory cell to which data is written from said plurality of magnetic memory cells, and supplies a write current to said target memory cell; and a control unit which controls a supply of said write current supplied by said current supply unit on a basis of a write data, wherein each of said plurality of magnetic memory cells includes: wherein said magnetic material storage layer comprises: wherein said at least one spin control layer comprises: wherein said first spin control layer comprises: wherein said second spin control layer comprises: wherein said magnetization directions of said first magnetic material pinned layer and said second magnetic material pinned layer are approximately coincident, wherein said control unit controls said current supply unit so that said write current is supplied from any one of said first magnetic material pinned layer and said second magnetic material pinned layer to the other one, on the basis of said write data, wherein a resistance value between said first magnetic material pinned layer and said first magnetic material layer is different from a resistance value between said second magnetic material pinned layer and said second magnetic material layer, and wherein the data is rewritten by using both of principles of a spin electron transfer from one pinned layer and a spin electron selection pass through an other pinned layer at one time, said one pinned comprising one of said first and second magnetic material pinned layers, and the other pinned layer comprising an other of said first and second magnetic material pinned layers.