Magnetic head including a pole piece with soft magnetic particle

Details Magnetic head including a pole piece with soft magnetic particle Magnetic head including a pole piece with soft magnetic particle

1998-02-27

2000-10-17

Korzuch, William R.

Dynamic magnetic information storage or retrieval

Head

Core

360317, G11B 5133

Patent

active

061340790

ABSTRACT:
A magnetic head including a magnetic pole piece for forming a recording gap, and a coil interlinked with the magnetic pole piece. The magnetic pole piece is obtained by first preparing a plating solution containing a first component for precipitating a substantially uniform soft magnetic layer of NiFe, for example, next dispersing a second component for precipitating soft magnetic particles of FeN, for example, in the plating solution, and finally simultaneously precipitating the soft magnetic layer and the soft magnetic particles to obtain the magnetic pole piece. The simultaneous precipitation of the soft magnetic layer and the soft magnetic particles may be effected by a dispersion plating method. According to this method, the soft magnetic particles formed of a material having a greater resistivity or a material having a greater saturation magnetic flux density can be mixed in a base layer (the soft magnetic layer) formed of a soft magnetic material that can be electroplated. Accordingly, it is possible to provide a magnetic head which can obtain a high writing ability and can be formed in a high-precision shape (that is, can obtain a high recording density to a magnetic recording medium).

REFERENCES:
patent: 4368496 (1983-01-01), Kato et al.

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