Patent ID: 6317302
Filing Date: 2001-11-13
Classification: B82Y,G11B

Abstract:
A thin-film magnetic read head device comprising an end face extending in a first direction, in which a magnetic information carrier is movable with respect to the magnetic head device, and in a second direction, perpendicular to said first direction, the magnetic head device further comprising a multilayer structure with at least two soft-magnetic layers separated by a magnetic insulation layer and with at least one exchange biasing layer cooperating with one of said soft-magnetic layers, which multilayer structure extends in the second direction and in a third direction, perpendicular to the first and the second directions, and forms at least one flux path in the first and the third directions, characterized in that the exchange coupling between one of the soft-magnetic layers and the exchange biasing layer is at least partly reduced locally in at least the second direction, and in that the exchange biasing layer extends uninterruptedly in the region of said local reductions.