Method of manufacturing magnetic head

Details Method of manufacturing magnetic head Method of manufacturing magnetic head

1989-06-28

1990-05-01

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29407, 360119, G11B 542

Patent

active

049215086

ABSTRACT:
A method of manufacturing a magnetic head where the width of upper and/or lower cores projecting from respective core bodies and extending parallel with each other via a gap is changed in advance substantially stepwise toward the free end. Then, the upper and lower cores are polished from the free ends to a position of a stepwise change in the width, thus obtaining a desired throat height.

REFERENCES:
patent: 4689877 (1987-09-01), Church
patent: 4841625 (1989-06-01), Valstyn
"Electrical Detection of End Point Polishing Process of Thin-Film Head"; Kawakami et al.; Journal of Applied Physics; Apr. 1987.

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