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US 11,670,337 B1Granted
Discrete track magnetic recording for EAMR
AssigneeSeagate Technology LLC
InventorsSteven Douglas Granz, Ian James Gilbert
Life of this patent
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Abstract
A data storage medium includes a substrate, and a plurality of spaced-apart discrete data storage tracks supported by the substrate. The data storage medium also includes magnetic flux sinking material between the discrete data storage tracks and over the substrate. As an alternative to the magnetic flux sinking material, plasmonic material may be included between the discrete data storage tracks and over the substrate.
Claims19
A data storage medium comprising:
- a substrate;
- a plurality of spaced-apart discrete data storage tracks supported by the substrate;
- and
- magnetic flux sinking or plasmonic material between the discrete data storage tracks and over the substrate,
- wherein the magnetic flux sinking or plasmonic material is a continuous layer connecting two adjacent discrete data storage tracks in a cross-track direction, and wherein an upper surface of the continuous layer of the magnetic flux sinking or plasmonic material is coplanar with upper surfaces of the two adjacent discrete data storage tracks.
2 more elements
A data storage medium comprising:
- a substrate;
- a plurality of spaced-apart discrete data storage tracks supported by the substrate, the plurality of spaced-apart discrete data storage tracks comprising a first discrete data storage track having a first track pitch, and a second discrete data storage track having a second track pitch that is greater than the first track pitch;
- and
- a magnetic flux sinking material between the discrete data storage tracks and over the substrate.
1 more element
A data storage drive comprising:
- a data storage medium comprising:
- a substrate;
- and
- a plurality of spaced-apart discrete data storage tracks supported by the substrate;
- at least one recording head configured to interact with the data storage medium;
- and
- control circuitry communicatively coupled to the at least one recording head, the control circuitry configured to direct the at least one recording head to write multiple zones of data positioned side by side in a cross-track direction within a discrete data storage track of the plurality of spaced-apart discrete data storage tracks, with each of the multiple zones of data forming a different magnetically defined data storage track within the discrete data storage track.
4 more elements
Dependencies are inferred from the claim text.