Metal working – Method of mechanical manufacture – Electrical device making
Patent
1996-08-07
1998-09-22
Vo, Peter
Metal working
Method of mechanical manufacture
Electrical device making
2960314, 2960318, 216 22, G11B 5127
Patent
active
058096370
ABSTRACT:
A read/write magnetic head assembly includes an inductive write head and a magnetoresistive (MR) read head. The inductive write head includes first and second magnetic poles, P1 and P2 respectively, which form a magnetic circuit with a write transducing gap. The P1 pole is formed in an integral structure with a wider extending flux shield section. The shield section extends from the lower surface of the P1 layer to define a stepped or staggered configuration. The MR head includes an MR sensor element that is disposed between a lower flux shielding layer and the P1 pole/shield section structure. The narrow width of the P1 pole layer at the write gap region and the extended shield section of the integral P1 pole/shield structure serve to reduce the write fringing field which occurs during the write mode. In this way, the recorded data tracks can be narrowed with a resultant increase in track density.
REFERENCES:
patent: 4791719 (1988-12-01), Kobayashi et al.
patent: 4803580 (1989-02-01), Mowry
patent: 5116719 (1992-05-01), Gau
patent: 5141623 (1992-08-01), Cohen et al.
patent: 5168409 (1992-12-01), Koyama et al.
patent: 5438747 (1995-08-01), Krounbi et al.
Read-Rite Corporation
Vo Peter
LandOfFree
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