High linear density tunnel junction flux guide read head...

Details High linear density tunnel junction flux guide read head... High linear density tunnel junction flux guide read head...

2007-01-09

2007-01-09

Klimowicz, William J (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C029S603150

Reexamination Certificate

active

11075079

ABSTRACT:
Several embodiments of a sense current perpendicular to the planes of the sensor (CPP) and flux guide type of read head has a gap between first and second shield layers at an air bearing surface (ABS) where the flux guide is located which is less than a gap between the first and second shield layers at a recessed location where the sensor is located. This reduced gap increases the linear bit density capability of the read head. A longitudinal bias stack (LBS) is located in the sensor stack. Several unique methods of construction are described for forming the magnetic head assemblies.

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