Patent ID: 6413325
Filing Date: 2002-07-02
Classification: B82Y,G11B,H01F,Y10T

Abstract:
A method of manufacturing a thin-film magnetic head with a spin valve magnetoresistive effect element which includes first and second layers of a ferromagnetic material separated by a layer of non-magnetic electrically conductive material, and a layer of anti-ferromagnetic material formed in physical contact with the second ferromagnetic material layer, said method comprising:a first temperature annealing step of annealing said spin valve magnetoresistive effect element under application of magnetic field to provide exchange coupling between said second ferromagnetic material layer and said anti-ferromagnetic material layer so that said second ferromagnetic material layer is pinned toward a predetermined direction; and a second temperature annealing step of annealing said spin valve magnetoresistive effect element so that axis of easy magnetization of said first ferromagnetic material layer orients a direction substantially perpendicular to said predetermined direction, wherein said second temperature annealing is performed at a temperature equal to or higher than 100Â° C. but lower than 150Â° C.