Thin film head with coils of varying thickness

Details Thin film head with coils of varying thickness Thin film head with coils of varying thickness

1991-06-03

1992-12-22

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

360123, G11B 5147

Patent

active

051738260

ABSTRACT:
A thin film head assembly includes a coil structure having a thin coil layer that extends within and beyond the magnetic yoke area delineated between opposing magnetic pole pieces, and an additional coil layer formed as a step segment adjacent to the thin layer. The additional layer is spaced away from the pole pieces and the magnetic yoke area and provides a thickened coil area which affords a significant reduction in coil resistance.

REFERENCES:
patent: 3987488 (1976-10-01), Kanai et al.
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patent: 4295173 (1981-10-01), Romankiw et al.
patent: 4375657 (1983-03-01), Brock et al.
patent: 4639289 (1987-01-01), Lazzari
patent: 4685014 (1987-08-01), Hanazono et al.
patent: 4751599 (1988-06-01), Katou
patent: 4752850 (1988-06-01), Yamada et al.
patent: 4760481 (1988-07-01), Yuito et al.
patent: 4771350 (1988-09-01), Desserre
patent: 4860140 (1989-08-01), Momata et al.

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