Method of making multitrack magnetic heads

Details Method of making multitrack magnetic heads Method of making multitrack magnetic heads

1979-03-23

1981-02-24

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360121, G11B 542

Patent

active

042519101

ABSTRACT:
High track density multitrack magnetic heads are batch-fabricated from a stack of wafers which are photolithographically processed to provide lands and grooves on the wafers. Thin magnetic films are deposited in the grooves; and coils respectively inductively cooperative with the films are photolithographically formed about the films, the lands serving both to provide track-to-track spacing and to protect the magnetic films from magnetostriction-producing stress.

REFERENCES:
patent: 3344237 (1967-09-01), Gregg
patent: 3564522 (1971-02-01), Stevens, Jr.
patent: 3613228 (1971-10-01), Cook et al.
patent: 3672043 (1972-06-01), Trimble et al.
patent: 3829896 (1974-08-01), Brock et al.

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