Patent ID: 6337784
Filing Date: 2002-01-08
Classification: B82Y,G11B

Abstract:
A head disk assembly comprising:a magnetic disk, a drive means for rotating said magnetic disk, a magnetic head composed of a magnetic induction type recording head and a magnetoresistive effect type recording head including: a lower magnetic shield layer, a lower inter-layer insulation film, a magnetoresistive effect type element for detecting magnetic field by using a magnetoresistive effect, an upper inter-layer insulation film, and an upper magnetic shield layer, wherein said lower or upper magnetic shield has a structure in which a NiFe alloy magnetic layer and a magnetic layer including at least one element selected from the group consisting of Co, Fe, and Ni and at least one element selected from the group consisting of O, N, F, C, P, S, and B are stacked on each other.