Method of manufacturing magnetic write/read head and fabrication

Details Method of manufacturing magnetic write/read head and fabrication Method of manufacturing magnetic write/read head and fabrication

1991-04-05

1992-12-01

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360119, 360122, G11B 542

Patent

active

051670623

ABSTRACT:
Disclosed is a magnetic head comprising chiefly two thin or thick layers of magnetic materials located in a same plane and separated by a gap layer of non-magnetic material, also made in the form of a thin or thick layer. This gap layer forms a determined angle with the plane of the layers of magnetic materials. Methods are also provided for the making of such a head. In particular, these methods make it possible to determine, with precision, the angle of the gap with the plane of the layers of magnetic materials. Applications: magnetic write/read heads for computer peripherals (using tapes or disks), and possibly video tape recorders.

REFERENCES:
patent: 4399479 (1983-08-01), Meckel
patent: 4601099 (1986-07-01), Nishiyama
patent: 5042140 (1991-08-01), Coutellier et al.
Patent Abstracts of Japan, vol. 14, No. 158 (P-1027) (4101), Mar. 27, 1990; & JP-A-02 014411, Jan. 18, 1990.
Patent Abstracts of Japan, vol. 11, No. 147 (P-575) (2594), May 14, 1987, & JP-A-61 283018, Dec. 13, 1986.
Patent Abstracts of Japan, vol. 11, No. 305 (P-623) (2752), Oct. 6, 1987, & JP-A-62 097118, May 6, 1987.
IBM Technical Disclosure Bulletin, vol. 21, No. 12, May 1979, p. 5002; K. E. Peterson, "Thin Film Magnetic Heads".

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