Method of manufacturing a magneto-resistive reading head with re

Details Method of manufacturing a magneto-resistive reading head with re Method of manufacturing a magneto-resistive reading head with re

1997-04-22

1999-08-31

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

2960313, 2960316, G11B 539

Patent

active

059437634

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: 4554048 (1985-11-01), Manocha
patent: 5042140 (1991-08-01), Coutellier et al.
patent: 5556718 (1996-09-01), Motomura et al.

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