Patent ID: 6398924
Filing Date: 2002-06-04
Classification: B82Y,C23C,G11B,H01F

Abstract:
A method of making a nickel oxide (NiO) pinning layer for a sensor of a read head comprising the steps of:forming a first portion of the nickel oxide (NiO) pinning layer with an exposed top surface on a substrate; etching the top surface of the first portion of the nickel oxide (NiO) pinning layer to form a top etched surface; forming a second portion of the nickel oxide (NiO) pinning layer on the top etched surface of the first portion of the nickel oxide (NiO) pinning layer with the second portion having a top surface; and forming a ferromagnetic pinned layer structure on the top surface of the second portion of the nickel oxide (NiO) pinning layer for exchange coupling therebetween.