Magneto-resistive reading head with reduced side-lobe

Details Magneto-resistive reading head with reduced side-lobe Magneto-resistive reading head with reduced side-lobe

1995-12-28

1997-09-16

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

056686862

ABSTRACT:
A thin film magnetic head made of material having the magneto-resistance (MR) effect and its manufacturing method are provided. A lower shield layer for magnetically shielding an MR film is formed with a trench of a gull-wing shape having a flat bottom surface and opposite slanted surfaces formed on both sides of the bottom surface. The MR film is formed on the lower shield layer conformal to the gull-wing shape. The region of the MR film on the flat bottom surface forms an effective magnetic active region. A track center shift and the generation of a side-lobe in the off-track characteristic specific to an MR head can be suppressed and high density recording and reproducing of narrow tracks are possible.

REFERENCES:
patent: 4547824 (1985-10-01), Best et al.
patent: 4713708 (1987-12-01), Krounbi et al.
patent: 4785366 (1988-11-01), Krounbi et al.
patent: 4816948 (1989-03-01), Kamo et al.
patent: 4821133 (1989-04-01), Mowry et al.
patent: 5140484 (1992-08-01), Maruyama
patent: 5296987 (1994-03-01), Anthony et al.
patent: 5327313 (1994-07-01), Nishioka et al.
patent: 5436777 (1995-07-01), Soeya et al.
patent: 5471358 (1995-11-01), Tadokoro et al.
IEEE Trans. on Magnetics, "Stability & biasing Characteristics of a PM biased SAL/MR Device", Liao et al, vol. 30, No. 6, Nov. 1994.

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