High density magnetic RAM and array architecture using a one transistor, one diode, and one MTJ cell

摘要

A new magnetic RAM cell device is achieved. The device comprises a MTJ cell comprising a free layer and a pinned layer separated by a dielectric layer. A diode is coupled between the free layer and a reading line. A writing switch is coupled between a first end of the pinned layer and a first writing line. A second end of the pinned layer is coupled to a second writing line. Architectures using MRAM cells are disclosed.