Multichannel magnetic head and a manufacturing method therefor

Dynamic magnetic information storage or retrieval – Head – Hall effect

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360121, 360122, 29603, G11B 538, G11B 528, G11B 522

Patent

active

043886612

ABSTRACT:
A multichannel magnetic head has a Hall element which is disposed in a magnetic circuit which is traversed by a magnetic flux to be detected and which is used as magnetic/electric converting means. The Hall element comprises an amorphous magnetic thin film consisting of an alloy containing a rare earth element and a transition metal. To the amorphous magnetic thin film are connected a pair of current terminals and a plurality of Hall voltage terminals corresponding in number to the number of channels of the multichannel head, and the amorphous thin film is arranged in magnetic circuits of a plurality of channels.

REFERENCES:
patent: 3643035 (1972-02-01), Tsukagoshi
patent: 3686751 (1972-08-01), Sugiyama
patent: 3701861 (1972-10-01), Suzuki et al.
patent: 3715522 (1973-02-01), Tsukagoshi
patent: 3943570 (1976-03-01), Yamamoto et al.
patent: 3987485 (1976-10-01), Sugaya et al.
patent: 4036723 (1977-07-01), Schwartz
patent: 4155106 (1979-05-01), Muraoka
patent: 4179719 (1979-12-01), Imamura et al.
patent: 4186481 (1980-02-01), Noguchi
patent: 4218659 (1980-08-01), Arai
IBM Tech. Disc. Bull., R. J. Gambino et al., Magnetic Films for Hall Effect Devices Usefull for Magnetic Recording Heads, vol. 18, No. 12, May 1976, pp. 4214-4217.
IBM Tech. Disc. Bull., R. J. Gambino et al., GdFe and GdCoFe Materials for Magnetic Head Hall Sensors, vol. 18, No. 12, May 1976, p. 4218.

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