Patent ID: 6061211
Filing Date: 2000-05-09
Classification: B82Y,G01R,G11B

Abstract:
A magnetic sensor comprising:a magnetoresistance effect film having first and second ferromagnetic films, a nonmagnetic film interposed between the first and second ferromagnetic films, the first ferromagnetic film having a soft magnetic layer laminated therewith, the magnetization direction of the first ferromagnetic film being substantially perpendicular to the magnetization direction of the second ferromagnetic film when a signal magnetic field is zero, the magnetization direction of the second ferromagnetic film being fixed, and the magnetoresistance effect film having a pair of end regions separated by a center sensing region;a pair of bias films producing a longitudinal bias to the first ferromagnetic film, the first ferromagnetic film being disposed between the pair of bias films; anda pair of electrodes producing a current flow through the magnetoresistance effect film, the pair of electrodes being disposed on top surfaces of the pair of end regions.