Dynamic magnetic information storage or retrieval – Head – Core
Patent
1982-05-14
1985-05-07
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Head
Core
G11B 516
Patent
active
045161801
ABSTRACT:
A thin film magnetic head comprises an upper magnetic film and a lower magnetic film which cooperate to constitute a magnetic circuit including a magnetic gap, and a coil conductor film constituting a coil having a predetermined number of turns and extending between the upper and the lower magnetic films to intersect the magnetic circuit. The upper magnetic film is composed of a laminate constituted by magnetic thin film layers and non-magnetic thin film layers stacked alternately with each other. An electrically insulating layer formed of a photo-sensitive resin is interposed between the upper magnetic film and the coil conductor film.
REFERENCES:
patent: 3908194 (1975-09-01), Romankiw
Lazzari et al., "Integrated Magnetic Recording Heads", IEEE Trans. on Magnetics, vol. MAG-7, No. 1, Mar. 1971, p. 146.
Romankiw et al., "Design . . . Heads", IBM Tech. Disc. Bull., vol. 23, No. 5, Oct. 1980, p. 2148.
Feng et al., "Laminated . . . Material", IBM Tech. Disc. Bull., vol. 21, No. 11, Apr. 1979, p. 4367.
Narishige Shinji
Sato Mituo
Takagi Masayuki
Yoshida Toshihiro
Yoshinari Tsuneo
Computer Basic Technology Research Assoc.
Tupper Robert S.
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