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US 8,576,517 B1Granted
Magnetic recording transducer having side shields between the coils and the air-bearing surface
AssigneeWestern Digital (Fremont), LLC
InventorsUt Tran, Zhigang Bai
Life of this patent
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Abstract
A magnetic recording transducer is provided. The magnetic recording transducer comprises a main pole including a nose portion, the nose portion terminating at an air-bearing surface (ABS). The magnetic recording transducer further comprises at least one coil having a coil front distal from the ABS, and at least one side shield. The at least one side shield extends from at the ABS to not further than the coil front.
Claims9
A magnetic recording transducer comprising:
- a main pole including a nose portion terminating at an air-bearing surface (ABS), at least one magnetic layer having a bottom and a plurality of sides, and at least one nonmagnetic layer, the at least one nonmagnetic layer substantially surrounding bottom and the plurality of sides of the at least one magnetic layer;
- at least one coil having a coil front distal from the ABS;
- at least one side shield, the at least one side shield extending from at the ABS to not further than the coil front;
- wherein the at least one nonmagnetic layer further includes at least one of a planarization stop layer and a nonmagnetic track width adjustment layer.
1 more element
A disk drive comprising:
- a slider including a magnetic transducer, the magnetic transducer including
- a main pole including a nose portion terminating at an air-bearing surface (ABS), at least one magnetic layer having a bottom and a plurality of sides, and at least one nonmagnetic layer, the at least one nonmagnetic layer substantially surrounding bottom and the plurality of sides of the at least one magnetic layer, the at least one nonmagnetic layer further including at least one of a planarization stop layer and a nonmagnetic track width adjustment layer;
- at least one coil having a coil front distal from the ABS;
- at least one side shield, the at least one side shield extending from at the ABS to not further than the coil front.
1 more element
Dependencies are inferred from the claim text.