Method of making a vertical recording head for contact and near

Details Method of making a vertical recording head for contact and near Method of making a vertical recording head for contact and near

1993-08-20

1994-07-12

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

360119, 360122, G11B 542

Patent

active

053276388

ABSTRACT:
A method of constructing a ferrite magnetic head that can be used for vertical recording. The head is created by first bonding a non-magnetic shoe to the legs of a C-Shaped magnetic core to create a block assembly. A pole surface of the block is then lapped and sputtered with a magnetic pole material. A layer of alumina is then sputtered onto the magnetic pole material. After sputtering, the block is ground to create air bearing grooves and a plurality of poles. The bearing surface of the block is then lapped to the apex of an oblique interface between the shoe and core to create the throat of the pole. The block is cut into individual transducer cores which are then wrapped with a wire coil and attached to a flexbeam.

REFERENCES:
patent: 4875987 (1989-10-01), Wada et al.
patent: 5163218 (1992-11-01), Hamilton

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