Thin-film electro-magnetic coil design for use in a flying magne

Details Thin-film electro-magnetic coil design for use in a flying magne Thin-film electro-magnetic coil design for use in a flying magne

1998-02-04

1999-03-23

Neyzari, Ali

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, G11B 1100

Patent

active

058869590

ABSTRACT:
A thin-film coil for use in a flying magneto-optical data storage system is formed on an undercoat layer, and includes an underside and a conductor deposited on the undercoat layer. The conductor is covered by an insulation layer on which a yoke is formed for providing a path to a magnetic field generated by the conductor. The yoke is formed of three sections: an upper section, an intermediate section, and the tip. The yoke tip defines an optical opening and has its underside substantially flush with the underside of the undercoat layer for increasing the density of the magnetic field at a target distance from the coil. The yoke tip underside is defined by an inner edge that delineates the optical opening, and that is formed of two semi-circular sections and two linear sections tangential to the semi-circular sections. The yoke can optionally include an outer section that extends over the peripheral side of the insulation layer and that further extends in an enlarged toe section.

REFERENCES:
patent: 4890178 (1989-12-01), Ichibara
patent: 5022018 (1991-06-01), Vogelgesang et al.
patent: 5072324 (1991-12-01), Lin et al.
patent: 5105408 (1992-04-01), Lee et al.
patent: 5124961 (1992-06-01), Yamaguchi et al.
patent: 5197050 (1993-03-01), Murakami et al.
patent: 5287334 (1994-02-01), Iwabuchi et al.
patent: 5295122 (1994-03-01), Murakami et al.
patent: 5307328 (1994-04-01), Jacobs et al.
patent: 5331496 (1994-07-01), Wu et al.
patent: 5370766 (1994-12-01), Desaigoudar et al.
patent: 5402293 (1995-03-01), Smith
patent: 5544131 (1996-08-01), Albertini et al.
patent: 5563871 (1996-10-01), Bargerhuff et al.
patent: 5572179 (1996-11-01), Ito et al.
patent: 5615183 (1997-03-01), Ishii
patent: 5642336 (1997-06-01), Albertini et al.
patent: 5703840 (1997-12-01), Kazama
patent: 5784343 (1998-07-01), Watanabe et al

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