Patent ID: 6907654
Filing Date: 2005-06-21
Classification: B82Y,G11B,H01F,Y10T

Abstract:
1. A method of manufacturing a spin valve film comprising the steps of: forming an undercoat film on a substrate; forming an antiferromagnetic film on said undercoat film; forming, on said antiferromagnetic film, a first ferromagnetic film serving as a pinned layer; forming an electrically conductive film on said first ferromagnetic film; and forming, on said electrically conductive film, a second ferromagnetic film serving as a free layer; wherein during a film making process for forming said first ferromagnetic film, electrically conductive film and second ferromagnetic film constituting the spin valve film, after a completion of a process for forming a first film of two films which are selected from said first ferromagnetic film, electrically conductive film and second ferromagnetic film and are to be formed successively, but before an initiation of a process for forming the other film of said two films, a step of decreasing an anisotropic magnetic field of the spin valve film by interrupting the film making process is introduced.