Monolithic ferrite recording head with glass-protected, self-ali

Details Monolithic ferrite recording head with glass-protected, self-ali Monolithic ferrite recording head with glass-protected, self-ali

1988-10-17

1991-12-10

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 5187

Patent

active

050723227

ABSTRACT:
The present invention relates to a novel monolithic read/write recording head for use in disk drives. The airborne slider body and the transducer nose portion of the head is made from the same magnetic ferrite material. The magnetic material preferably consists of NiZn ferrite or MnZn ferrite. A narrow track surface has a non-magnetic gap interposed across the track at some distance atop the I-bar coil assembly, between the slider and the transducer portion. For protection, this gap and track area is embedded in molten glass. Another embodiment of the invention provides for a slider body equipped with both a servotype and data recording transducer assembly.
The novel design provides attachment on a spring-loaded head holder in such a position that the spring axis is in parallel with the long dimension of the body along its air bearing surface. Alternatively, the head can have mounting blocks arranged such that the spring axis is directed perpendicularly to the long dimension of the body.

REFERENCES:
patent: 4555739 (1985-11-01), Levan et al.
patent: 4581663 (1986-04-01), Tanaka
patent: 4812131 (1989-04-01), Gotoh

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