Spin valve sensor with a nitrogen sputtered free layer

Details Spin valve sensor with a nitrogen sputtered free layer Spin valve sensor with a nitrogen sputtered free layer

2006-06-20

2006-06-20

Tran, Thang V. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07064938

ABSTRACT:
A method makes a spin valve sensor of a magnetic read head which includes the steps of forming a ferromagnetic pinned layer structure that has a magnetic moment, forming a pinning layer exchange coupled to the pinned layer structure for pinning the magnetic moment of the pinned layer structure, forming a free layer structure, forming a nonmagnetic electrically conductive spacer layer between the free layer and the pinned layer structure and the forming of the free layer structure including the step of sputter depositing at least a first free layer composed of cobalt iron directly on the spacer layer in a nitrogen atmosphere.

REFERENCES:
patent: 5852531 (1998-12-01), Yamada
patent: 6108177 (2000-08-01), Gill
patent: 6271997 (2001-08-01), Gill
patent: 6400536 (2002-06-01), Gill
patent: 6437950 (2002-08-01), Chau et al.

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