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US 2014/0146647 A1Published application
Controlling head-media spacing using a write coil
AssigneeSeagate Technology LLC
InventorsRaul Horacio Andruet, James Gary Wessel
Life of this patent
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Abstract
While a heat-assisted, magnetic recording media is not being written to, heat applied from a write head to the recording media to facilitate writing to the recording media is removed. Power is applied to a write coil of the write head to control spacing between the write head and the recording media when the recording media is not being written to.
Claims20
A method comprising:
- removing, while a heat-assisted, magnetic recording media is not being written to, heat applied from a write head to the recording media via an optical device, the heat facilitating writing to the recording media;
- and
- applying power to a write coil of the write head to control a spacing between the write head and the recording media when the recording media is not being written to.
(canceled)
A write head, comprising:
- a device configured to apply heat to a heat-assisted magnetic recording media via a near-field transducer to facilitate writing to the recording media;
- a write coil configured to apply a magnetic field to the magnetic media in response to application of power to the write coil, wherein the write coil is configured to control, at least when the heat is removed from the recording media, a spacing between the write head and the magnetic media in response to the application of power to the write coil.
(canceled)
An apparatus, comprising:
- a write head comprising a write coil;
- an optical device configured to apply heat to a heat-assisted magnetic recording media via the write head during writing;
- and
- a controller coupled to the write head and the device, the controller configured to:
- remove the heat from the recording media when the recording media is not being written to;
- and
- apply power to the write coil, wherein the write coil is configured to control, at least when the heat is removed from the recording media, a spacing between the write head and the magnetic media in response to the application of power to the write coil.
4 more elements
(canceled)
Dependencies are inferred from the claim text.