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US 2006/0132985 A1Published application
Magnetic head with durability against static electricity
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsTakayoshi Ohtsu, Shoji Natori
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Abstract
Embodiments of the invention provide a read head which is implemented in a magnetic disk drive that supports a high recording density and a high transfer rate and is excellent in static electricity durability. In one embodiment, a magnetic head wherein a charge diffuses from a read element to a slider at a time constant of about 100 ms or less.
Claims15
A magnetic head comprising:
- a slider;
- a base alumina formed on the slider;
- a lower magnetic shield formed on the base alumina;
- a read element formed on the lower magnetic shield;
- an electrode for applying a current to the read element;
- an upper magnetic shield formed on the electrode;
- and
- a protection film formed on an air bearing surface;
- wherein a charge diffuses from the read element to the slider at a time constant of about 100 ms or less.
6 more elements
A head suspension assembly comprising:
- a read element for reading information from a magnetic disk;
- an electrode for applying a current to the read element;
- a slider having the read element and the electrode;
- and
- a suspension for supporting the slider;
- wherein a charge diffuses from the read element to the suspension at a time constant of about 100 ms or less.
3 more elements
Dependencies are inferred from the claim text.