Patent ID: 6521098
Filing Date: 2003-02-18
Classification: B82Y,C23C,G01R,G11B,H01F,Y10T

Abstract:
A method comprising:a) forming an insulating polycrystalline seed layer in a first chamber by reactively pulsed DC magnetron sputtering; b) forming, over said insulating polycrystalline seed layer, an insulating amorphous seed layer in a second chamber by reactively pulsed DC magnetron sputtering; c) forming, over said insulating amorphous seed layer, a conducting seed layer and a ferromagnetic free layer in a third chamber by ion beam sputtering, said ferromagnetic free layer formed over said conducting seed layer; and d) forming, over said ferromagnetic free layer, a remainder of a spin valve sensor through an antiferromagnetic layer in a fourth chamber by DC magnetron sputtering.