Patent ID: 7835210
Filing Date: 2010-11-16
Classification: B82Y,G11C,H01L

Abstract:
1. A magnetic random access memory comprising: a memory element having a first fixed layer in which a magnetization direction is fixed, a first recording layer in which a magnetization direction changes in accordance with a direction of a write current, and a first nonmagnetic layer sandwiched between the first fixed layer and the first recording layer; a first reference element having a second fixed layer in which a magnetization direction is fixed, a second recording layer in which a magnetization direction changes in accordance with a direction of a write current, and a second nonmagnetic layer sandwiched between the second fixed layer and the second recording layer, antiparallel data being written in the first reference element; a second reference element making a pair with the first reference element, and having a third fixed layer in which a magnetization direction is fixed, a third recording layer in which a magnetization direction changes in accordance with a direction of a write current, and a third nonmagnetic layer sandwiched between the third fixed layer and the third recording layer, parallel data being written in the second reference element; and a current source which, when a read operation is performed, supplies a current from the second fixed layer to the second recording layer in the first reference element, and supplies the current from the third recording layer to the third fixed layer in the second reference element.