Thin-film magnetic circuit board and magnetic head using the sam

Details Thin-film magnetic circuit board and magnetic head using the sam Thin-film magnetic circuit board and magnetic head using the sam

1994-03-14

1995-02-14

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360125, G11B 5147, G11B 5127

Patent

active

053900626

ABSTRACT:
A thin-film magnetic circuit board is disclosed which includes: a first and a second substrate formed of a magnetic material; a non-magnetic layer for bonding these substrates to each other; at least one coil formed from an electrically conductive film to provide a circuit pattern, each coil having a spiral shape and surrounding a predetermined blank portion of at least one of the first and second substrates; a pair of leads which are electrically connected to opposite ends of the circuit pattern formed by the coil(s); and a connector formed from a magnetic film, for magnetically connecting the first and second substrates. The connector is fixed to the predetermined blank portion of the first and/or second substrates. Also is disclosed a magnetic head including this thin-film magnetic circuit board.

REFERENCES:
patent: 4404609 (1983-09-01), Jones, Jr.
patent: 4626947 (1986-12-01), Narishige et al.
patent: 4814921 (1989-03-01), Hamakawa et al.
patent: 4943883 (1990-07-01), Sano et al.
patent: 5031063 (1991-07-01), Hasegawa
patent: 5124870 (1992-06-01), Toyoda
patent: 5136447 (1992-08-01), Makino et al.
patent: 5195004 (1993-03-01), Okuda et al.
IBM technical disclosure Bulletin (vol. 23, No. 10 Mar. 1981).

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