Spin filter bottom spin valve head with continuous spacer...

Details Spin filter bottom spin valve head with continuous spacer... Spin filter bottom spin valve head with continuous spacer...

2005-05-03

2005-05-03

Davis, David (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

06888707

ABSTRACT:
A high performance specular free layer bottom spin valve is disclosed. This structure made up the following layers: NiCr/MnPt/CoFe/Ru/CoFe/Cu/free layer/Cu/Ta or TaO/Al2O3. A key feature is that the free layer is made of a very thin CoFe/NiFe composite layer. Experimental data confirming the effectiveness of this structure is provided, together with a method for manufacturing it and, additionally, its longitudinal bias leads.

REFERENCES:
patent: 5637235 (1997-06-01), Kim et al.
patent: 5648885 (1997-07-01), Nishioka et al.
patent: 5896252 (1999-04-01), Kanai
patent: 6292335 (2001-09-01), Gill
patent: 6317298 (2001-11-01), Gill
patent: 6517896 (2003-02-01), Horng et al.

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