Having a solenoidal energizing coil

Details Having a solenoidal energizing coil Having a solenoidal energizing coil

1989-12-08

1990-11-20

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Core

360123, G11B 517, G11B 531

Patent

active

049722875

ABSTRACT:
A new read/write head for use in a mass storage device in a digital data processing system. The head is a thin-film head having a solenoidal coil around one or both of the pole pieces. Sets of planar conductive traces are formed on planar layers of insulating material on opposing sides of a pole piece, with vias connecting the ends of selected traces to thereby form a solenoidal coil around the pole piece.

REFERENCES:
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patent: 4511942 (1985-04-01), Valstyn
patent: 4639289 (1987-01-01), Lazzari
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patent: 4652957 (1987-03-01), Schewe et al.
patent: 4672493 (1987-06-01), Schewe
patent: 4684438 (1987-08-01), Lazzari
patent: 4727643 (1988-03-01), Schewe et al.
Albert et al., "Method of Forming a Probe-Type Head for Vertical Recording", IBM Technical Disclosure Bulletin, vol. 23, No. 11, Apr. 1981, p. 5097.

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