Process for producing a magnetic head

Details Process for producing a magnetic head Process for producing a magnetic head

1988-02-26

1989-04-18

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360120, G11B 5412

Patent

active

048214060

ABSTRACT:
A process for producing a magnetic head having improved registry between opposite track width controlling grooves. A magnetic gap forming nonmagnetic thin film is deposited on a first magnetic oxide substrate made of a magnetic oxide material, and a thin magnetic metal film is formed over the nonmagnetic thin film. Recording/reproducing track width controlling grooves are formed in the surface of the magnetic oxide substrate, thereby providing a first core half. On a second magnetic oxide substrate is formed a magnetic thin film for provide a second core half. The two core halves are joined to produce a head block by joining the two magnetic thin metal film coatings. The head block is then sliced to form discrete magnetic heads.

REFERENCES:
patent: 3479738 (1969-11-01), Hanak
patent: 4679898 (1988-09-01), Ono et al.
patent: 4704788 (1987-11-01), Eckstein

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