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US 2019/0172482 A1Published application
Write coil cooling arrangement at air bearing surface
AssigneeSeagate Technology LLC
InventorsGary Joseph Kunkel, Raul Horacio Andruet, James Gary Wessel
Life of this patent
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Abstract
A slider comprises an air bearing surface (ABS) and is configured to interact with a magnetic recording medium. A writer is provided on the slider and comprises a write coil having a media-facing surface situated at the ABS. Cooling arms project laterally from peripheral surfaces of the write coil and extend along the ABS. The media-facing surface of the write coil and the cooling arms are exposed to the ABS to facilitate increased cooling of the write coil at the ABS.
Claims20
An apparatus, comprising:
- a slider configured to interact with a magnetic recording medium and comprising an air bearing surface (ABS);
- a writer provided on the slider and comprising a write coil and a media-facing surface exposed at the ABS;
- a plurality of cooling arms projecting laterally from the write coil, each of the plurality of cooling arms extending along, and exposed at, the ABS;
- and
- a coating or a layer covering at least the plurality of cooling arms, the coating or layer comprising material that is less conductive than material of the write coil.
2 more elements
An apparatus, comprising:
- a slider configured to interact with a magnetic recording medium and comprising an air bearing surface (ABS);
- a writer provided on the slider and comprising a write coil and a media-facing surface exposed at the ABS, the write coil comprising a first material;
- and
- a plurality of cooling arms projecting laterally from the write coil, each of the plurality of cooling arms extending along, and exposed at, the ABS;
- wherein the plurality of cooling arms comprises a second material that is less conductive than the first material of the write coil.
2 more elements
An apparatus, comprising:
- a slider configured to interact with a magnetic recording medium and comprising an air bearing surface (ABS);
- a writer provided on the slider and comprising:
- a write pole terminating at or near the ABS;
- a return pole proximate the write pole;
- and
- a write coil arrangement having a media-facing surface exposed to the ABS, the write coil arrangement comprising:
- lower and upper write coils comprising an electrically conductive metal or alloy;
- and
- a plurality of cooling arms projecting laterally from the lower and upper write coils and extending along, and exposed at, the ABS, the cooling arms formed from or covered by a material that is less conductive than the electrically conductive metal or alloy of the lower and upper write coils.
6 more elements
Dependencies are inferred from the claim text.