Magnetic read head for a very narrow track

Details Magnetic read head for a very narrow track Magnetic read head for a very narrow track

1988-03-14

1990-02-13

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 530

Patent

active

049011774

ABSTRACT:
Magnetic read head for very narrow track and production process. On a silicon substrate (10) is formed a magnetic circuit (P1, P2, P3), whose thickness is equal to the width of the track to be read. This magnetic circuit is interrupted by a magnetic spacer (20) and two slots (F1, F2), in which are inserted elements sensitive to the magnetic field, e.g. magnetoresistors. The latter are connected to an integrated circuit (12) in the silicon substrate. Application to the reading of information recorded on a magnetic track.

REFERENCES:
patent: 3800193 (1974-03-01), Ashar et al.
patent: 4388662 (1983-06-01), Jeffers
IBM Technical Disclosure Bulletin, vol. 22, No. 1, Jun. 1979, p. 331, New York, U.S.; J. W. Beck et al, "Magnetic Head Assembly Including Head Circuitry".

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