Magnetic head having a magnetic recording element including...

Details Magnetic head having a magnetic recording element including... Magnetic head having a magnetic recording element including...

Filed on

2005-09-13

Date issued

2005-09-13

Examiner

Heinz, A. J. (Department: 2653)

Patent Class

Dynamic magnetic information storage or retrieval

SubClass

Head

SubSubClass

Core

Type

Reexamination Certificate

Status

active

Patent number

06943988

Description

ABSTRACT:
A process for producing a magnetic head attaining high speed and high density recording, excellent in reproducibility and relatively inexpensive is provided as well as a magnetic head and a magnetic disk unit. A lower yoke film, an insulating film supporting a thin film coil and an upper yoke film connected at a back end thereof to a back end of the lower yoke film are consecutively piled on a back end surface of a flying slider, and a magnetic pole films and a deposited at a tip end of at least one of the lower yoke film and the upper yoke film, so as to form a magnetic gap. The gap of the surface of the magnetic pole facing a magnetic recording medium is determined by the working pattern of the thin film; therefore, a magnetic pole having a high aspect ratio can be easily produced.

REFERENCES:
patent: 6275354 (2001-08-01), Huai et al.
patent: 6339523 (2002-01-01), Santini

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