Magnetoresistive sensor with a thin antiferromagnetic layer...

Details Magnetoresistive sensor with a thin antiferromagnetic layer... Magnetoresistive sensor with a thin antiferromagnetic layer...

2005-10-25

2005-10-25

Castro, Angel (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

06958892

ABSTRACT:
A spin valve sensor with a thin antiferromagnetic (AFM) layer exchange coupled to a self-pinned antiparallel coupled bias layer in the lead overlap regions is provided. The spin valve sensor comprises a ferromagnetic bias layer antiparallel coupled to a free layer in first and second passive regions where first and second lead layers overlap the spin valve sensor layers and a thin AFM layer exchange coupled to the bias layer to provide a pinning field to the bias layer.

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patent: 6396669 (2002-05-01), Gill
patent: 6404606 (2002-06-01), Pinarbasi
patent: 2002/0131218 (2002-09-01), Beach
patent: 2003/0156361 (2003-08-01), Li et al.
patent: 2003/0167625 (2003-09-01), Li et al.
patent: 2003/0179517 (2003-09-01), Horng et al.
patent: 2004/0042131 (2004-03-01), Dobisz et al.

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