Magnetoresistance effect head having a pair of protrusions, step

Details Magnetoresistance effect head having a pair of protrusions, step Magnetoresistance effect head having a pair of protrusions, step

1996-06-20

2000-09-12

Korzuch, William R.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

06118621&

ABSTRACT:
A magnetoresistance effect head includes a magnetic film for detecting a signal magnetic field. The magnetic film has substantially flat upper and lower surfaces, a detecting area for detecting the signal magnetic field, and non-detecting areas formed on both sides of the detecting area. One pair selected from a group of a pair of protrusions, a pair of depressions, and a pair of steps are formed at edge portions in a track width direction of the detecting area on at least one of the upper surface and the lower surface.

REFERENCES:
patent: 5296987 (1994-03-01), Anthony et al.
patent: 5461526 (1995-10-01), Hamakawa et al.
patent: 5471358 (1995-11-01), Tadokoro et al.
patent: 5475550 (1995-12-01), George
patent: 5479696 (1996-01-01), McNeil
patent: 5600518 (1997-02-01), Koga
patent: 5668685 (1997-09-01), Soeya et al.

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