Magnetic read head with recessed hard bias and current leads

Details Magnetic read head with recessed hard bias and current leads Magnetic read head with recessed hard bias and current leads

2007-05-01

2007-05-01

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

10788653

ABSTRACT:
A read element includes a magnetoresistive sensor having a side and an upper surface that defines an edge. An underlayer overlies the side of the magnetoresistive sensor, and a hard bias layer overlies at least part of the underlayer and defines a hard bias junction with the underlayer. A lead is formed atop the hard bias layer. The hard bias junction is recessed from the edge of the magnetoresistive sensor by a predetermined recess distance, to provide stability and sensitivity to the read element.

REFERENCES:
patent: 6847508 (2005-01-01), Tanaka et al.
patent: 7092218 (2006-08-01), Hasegawa et al.

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