Wire assisted magnetic recording with an alternating current driving the wire
AssigneeSeagate Technology LLC
InventorsTim Rausch, Edward Charles Gage, Zengyuan Liu
Life of this patent
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Abstract
A recording head for writing data on tracks of a data storage medium. The recording head includes a writer having a write pole and a trailing shield. The write pole includes a pole tip configured to write on the tracks of the data storage medium. The recording head also includes a writing-assistance wire that is positioned between the pole tip and the trailing shield in a down-track direction.
Claims20
A recording head for writing data on tracks of a data storage medium, the recording head comprising:
- a writer having a write pole and a trailing shield, the write pole comprising a pole tip configured to write on the tracks of the data storage medium;
- and
- a writing-assistance wire positioned between the pole tip and the trailing shield in a down-track direction to enable a writing-assistance current to be provided in the down-track direction to produce an assist magnetic field that augments a write field produced by the write pole.
A method of making a recording head for writing data on tracks of a data storage medium, the method comprising:
- providing a writer having a write pole and a trailing shield, the write pole comprising a pole tip configured to write on the tracks of the data storage medium;
- and
- providing a writing-assistance wire between the pole tip and the trailing shield in a down-track direction to enable a writing-assistance current to be provided in the down-track direction to produce an assist magnetic field that augments a write field produced by the write pole.
A data storage device comprising:
- a data storage medium having tracks;
- a recording head comprising:
- a writer having a write pole and a trailing shield, the write pole comprising a pole tip configured to write on the tracks of the data storage medium;
- and
- a writing-assistance wire positioned between the pole tip and the trailing shield in a down-track direction to enable a writing-assistance current to be provided in the down-track direction produce an assist magnetic field that augments a write field produced by the write pole.
Dependencies are inferred from the claim text.