Thin-film merged magnetic head having a heat-generating layer

Details Thin-film merged magnetic head having a heat-generating layer Thin-film merged magnetic head having a heat-generating layer

2005-07-19

2005-07-19

Heinz, A. J. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S128000, C360S294700

Reexamination Certificate

active

06920020

ABSTRACT:
In the thin-film magnetic head of the present invention, the distance to a heat-generating layer is shorter from the end part on the side facing, a recording medium in a magnetoresistive device than from the end part on the side facing the recording medium in an electromagnetic transducer. Therefore, even when the thin-film magnetic head tilts so that its electromagnetic transducer side approaches the recording medium when floating up from the recording medium, the amount of thermal expansion caused by the heat from the heat-generating layer is greater in the magnetoresistive device than in the electromagnetic transducer. This reduces the gap between the magnetoresistive device and the recording medium, whereby a high reproducing output can be obtained.

REFERENCES:
patent: 5638237 (1997-06-01), Phipps et al.
patent: 5991113 (1999-11-01), Meyer et al.
patent: 2002/0191326 (2002-12-01), Xu et al.
patent: A 5-20635 (1993-01-01), None
patent: A1-WO2002/037480 (2002-05-01), None
patent: A-2003-272335 (2003-09-01), None

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