Patent ID: 6989973
Filing Date: 2006-01-24
Classification: B82Y,G11B,H01F,Y10T

Abstract:
1. A specular free layer bottom spin valve, comprising a magneto-resistance-enhancing seed layer on a substrate; on said magneto-resistance-enhancing seed layer, a pinning layer; on said pinning layer, a synthetic antiferromagnetic pinned layer; on the synthetic antiferromagnetic pinned layer, a non-magnetic copper spacer layer; on the spacer layer, a free layer that further comprises a cobalt-iron/nickel-iron composite that is less than 10 Angstroms thick and a nickel-iron layer that is between 10 and 30 Angstroms thick; on the free layer, a high conductance copper layer; on the high conductance copper layer, a specular reflection layer; and on the specular reflection layer, a capping layer of aluminum oxide.