Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1995-03-21
1997-04-29
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360102, G11B 560, G11B 1732
Patent
active
056255128
ABSTRACT:
An air bearing slider for a data storage system including a novel deflection apparatus disposed on the air bearing surface, and a method of fabricating same are disclosed. The air bearing surface of the slider preferably includes a transducer element mounting location biased toward a trailing edge of the slider, and a deflection apparatus disposed proximate the transducer element mounting location and biased toward a leading edge of the slider. Contact between the deflection apparatus and an asperity or disk obstruction prevents damage to a transducer element mounted at the transducer element mounting location. In one embodiment, the deflection protrusion is preferably configured to include a sloping leading edge or, alternatively, comprises a plurality of deflection ridges that generally define a sloping leading edge. Alternatively, a deflection notch is provided on the air bearing surface that effectively functions as a deflection protrusion to protect a transducer element mounting location from contact with a thermal asperity or other submicron-sized obstruction on the surface of a data storage disk. A set of design equations and guidelines are provided for deriving key design dimensions for designing the configuration, orientation, and location of the deflection apparatus on the air bearing surface relative to the transducer element mounting location. A method for fabricating a novel air bearing surface including the deflection apparatus is also disclosed.
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International Business Machines - Corporation
Wolff John H.
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