Method of fabricating a magnetic head by sputter etching

Details Method of fabricating a magnetic head by sputter etching Method of fabricating a magnetic head by sputter etching

1990-10-31

1991-10-01

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

20712965, 360122, G11B 542

Patent

active

050520997

ABSTRACT:
A floating type magnetic head is made of a polycrystalline material. A surface to be opposed to a magnetic recording medium is undulated with lands and grooves having a height difference of 50 to 200 .ANG. on an average and a repetition pitch of 5 to 20 microns on an average. The portions, in which the heights of the lands and the grooves abruptly change, extend along the boundaries of the polycrystals. The head surface opposed to the magnetic recording medium is sputter-etched to have the predetermined surface roughness.

REFERENCES:
patent: 4257076 (1981-03-01), Shimizu et al.
patent: 4559572 (1985-12-01), Kumasaka et al.
patent: 4660114 (1987-04-01), Yamakawa et al.
patent: 4709284 (1987-11-01), Endo et al.
patent: 4796127 (1989-01-01), Wada et al.
patent: 4833556 (1989-05-01), Kosarko et al.
patent: 4851942 (1989-07-01), Kumasaka et al.
IBM Technical Disclosure Bulletin, vol. 20, No. 8, Jan., 1978, 2 pp.

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