Giant magnetoresistive transducer with increased output signal

Details Giant magnetoresistive transducer with increased output signal Giant magnetoresistive transducer with increased output signal

1997-08-22

1998-03-24

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

057319375

ABSTRACT:
A thin film magnetic transducer employs a giant magnetoresistive (GMR) sensing element operating in a (CPP) current-perpendicular-to-the-plane mode. Electrical lead members in electric contact with the sensing element provide for the flow of sensor current through the giant magnetoresistive element. The height, or both the height and the width, of the GMR sensing element are greater than the height, or both the height and width respectively, of the lead members, thereby resulting in an increased output signal from the transducer.

REFERENCES:
patent: 5390061 (1995-02-01), Nakatani et al.
patent: 5446613 (1995-08-01), Rottmayer
patent: 5483402 (1996-01-01), Batra
patent: 5493467 (1996-02-01), Cain et al.
patent: 5527626 (1996-06-01), Gijs et al.
patent: 5557492 (1996-09-01), Gill et al.
patent: 5636093 (1997-06-01), Gijs et al.
IEEE Transactions on Magnetics vol. 31, No. 6; Rottmayer et al; ". . . GMR Sensor in the CPP Mode" Nov. 1955.

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