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US 2003/0169539 A1Published application
Electrostatic discharge insensilive recording head with a high-resistance gap layer
AssigneeInternational Business Machines Corporation
InventorHoward G. Zolla
Life of this patent
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Abstract
The invention provides a magnetoresistive read head comprising a bottom shield and a top shield. The bottom shield and the top shield are spaced apart to form a read gap. A magnetoresistive sensor and a resistive layer are disposed within the read gap whereby any electric charge developed across the read gap layer is dissipated to thereby prevent any electrostatic discharge damage to the magnetoresistive read head. The resistive layer is preferably made from a cermet family of films.
Claims22
A magnetoresistive read head, comprising:
- a bottom shield;
- a top shield spaced from said bottom shield to form a read gap;
- a magnetoresistive sensor disposed within the read gap;
- and
- a first resistive layer disposed within the read gap.
2 more elements
A device, comprising:
- a magnetic data storage medium operable to store data;
- and
- a magnetoresistive read head operable to read the data, said magnetoresistive read head including
- a bottom shield,
- a top shield spaced from said bottom shield to form a read gap,
- a magnetoresistive sensor disposed within the read gap, and
- a first resistive layer disposed within the read gap.
4 more elements
Dependencies are inferred from the claim text.