Patent ID: 6118624
Filing Date: 2000-09-12
Classification: B82Y,G11B,H01F,H01L

Abstract:
A magneto-resistance effect element, comprising:a magneto-resistance effect film having a pinned layer, a non-magnetic layer stacked on the pinned layer thereabove, and a free layer stacked on the non-magnetic layer thereabove and varying its magnetization direction by an external magnetic field;a magnetic biasing film providing a bias magnetic field to the free layer, wherein the magnetic biasing film has a stacked film of a hard magnetic layer and a high saturation magnetization magnetic layer, and, when saturation magnetization of the high saturation magnetization magnetic layer is Ms.sup.high, saturation magnetization of the free layer is Ms.sup.free, saturation magnetization of the hard magnetic layer is Ms.sup.hard, the high saturation magnetization magnetic layer satisfies at least one of Ms.sup.high .gtoreq.Ms.sup.free and Ms.sup.high .gtoreq.Ms.sup.hard ; andan electrode providing a sense current to the magneto-resistance effect film.