Thin-film magnetic recording head using a plated metal gap layer

Details Thin-film magnetic recording head using a plated metal gap layer Thin-film magnetic recording head using a plated metal gap layer

1998-09-23

2000-02-01

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

2960307, 2960313, 2960315, 2960316, 360126, G11B 5127

Patent

active

060188626

ABSTRACT:
A first layer of magnetic material is deposited onto a substrate to form a bottom pole of an inductive transducer. A second layer of magnetic material is plated on the first layer of magnetic material within the pole tip region to form a bottom pole extension. A layer of non-magnetic metal is then plated on the bottom pole extension to form the gap. A third layer of magnetic material is then plated on the gap layer to form the top pole extension. In one form of the invention, a mask is employed to define a good zero throat level surface to the pole tip region.

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patent: 5621596 (1997-04-01), Santini
patent: 5700380 (1997-12-01), Krounbi et al.
patent: 5801909 (1998-09-01), Gray et al.
patent: 5809636 (1998-09-01), Shouji et al.
patent: 5901431 (1999-05-01), Santini

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