Patent ID: 6428657
Filing Date: 2002-08-06
Classification: B82Y,C23C,G11B

Abstract:
A method of making a magnetic read head that has a sensor comprising the steps of:a making of the sensor comprising the steps of: forming an antiferromagnetic pinning layer structure comprising the steps of: reactively combining ion beam sputtered nickel (Ni) and oxygen at a wafer to form a first film of nickel oxide (NiO) on said wafer; and reactively combining ion beam sputtered iron (Fe) and oxygen at the first film to form a second film of iron oxide (Fe2O3) or (Fe3O4) on the first film; and forming a ferromagnetic pinned layer consisting of cobalt iron (CoFe) or cobalt (Co) exchange coupled to said second film of the pinning layer structure.