Patent ID: 6990014
Filing Date: 2006-01-24
Classification: G11C

Abstract:
1. A magnetoresistive element comprising at least a pair of ferromagnetic layers stacked with having an intermediate layer inbetween so as to face each other, wherein said element achieves a change in the magnetic resistance by permitting an electric current to flow in the direction which crosses the plane of the stacked layers, wherein at least one of said ferromagnetic layers constituting an information recording layer has an amorphous structure comprising either a CoFeB alloy or a CoFeNiB alloy, wherein said information recording layer has a plane form having a longer axis in one direction wherein both sides of the plane form along the longer axis direction form one of a straight line and an outward protrusion, and the both ends of the plane form in the longer axis direction form a outward protrusion, thereby forming a pattern form, wherein said pattern form has an aspect ratio in the range of 1:1.2 to 1:3.5, in terms of shorter axis length:longer axis length, and wherein at least one of said ferromagnetic layers comprise first and second magnetization fixed layers and a nonmagnetic conductive layer.