Process for fabricating a magnetic head core slider

Details Process for fabricating a magnetic head core slider Process for fabricating a magnetic head core slider

1993-10-27

1995-02-14

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360121, 360127, G11B 542

Patent

active

053883250

ABSTRACT:
A core chip for a magnetic head core slider, including a first and a second core member which are bonded together so as to define a coil-winding aperture. The two core members cooperate to provide a gap-forming portion defining a magnetic gap on one side of the coil-winding aperture, and a cut-off portion provided adjacent to the gap-forming portion. The cut-off portion is removed by grinding at the top surface to establish the nominal depth of the magnetic gap. The cut-off portion has a distance marker which extends from the top surface down to the gap-forming portion and which has an end portion adjacent to the gap-forming portion. The end portion is shaped so as to indicate a distance between the top surface and the gap-forming portion, that is, the depth of the magnetic gap, when the cut-off portion is removed to provide a sliding surface of the core chip in which the magnetic gap is open. Also disclosed is a process of fabricating the magnetic head core slider using the core chip.

REFERENCES:
patent: 3502821 (1970-03-01), Duinker
patent: 3922776 (1975-12-01), Alger et al.
patent: 4729161 (1988-03-01), Verbunt et al.
patent: 4939608 (1990-06-01), Okamura et al.
patent: 4948460 (1990-08-01), Sandaiji et al.
patent: 5056353 (1991-10-01), Matono

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