Inductive write head driven only by an ampere wire
AssigneeSeagate Technology LLC
InventorsThomas William Clinton, Petrus Antonius van der Heijden, Michael Allen Seigler, Jonathan D. Hannay
Life of this patent
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Abstract
A magnetic recording head comprises a write pole having a tip adjacent to an air bearing surface of the recording head, a return pole magnetically coupled to the write pole, a conductor positioned adjacent to at least one edge of the write pole at the air bearing surface for carrying current to produce a magnetic field that saturates at least a portion of the write pole and augments a write field, a first conductive heat sink connected to a first end of the conductor, and a second conductive heat sink connected to a second end of the conductor. Disc drives that include the recording head are also included.
Claims21
A magnetic recording head comprising:
- a write pole having a tip adjacent to an air bearing surface of the recording head;
- a return pole magnetically coupled to the write pole;
- a conductor positioned adjacent to at least one edge of the write pole at the air bearing surface for carrying current to produce a magnetic field that saturates at least a portion of the write pole and augments a write field;
- a first conductive heat sink connected to a first end of the conductor;
- and
- a second conductive heat sink connected to a second end of the conductor.
A disc drive comprising:
- a motor for rotating a storage medium;
- and
- an arm for positioning a recording head adjacent to the storage medium;
- wherein the magnetic recording head includes a write pole having a tip adjacent to an air bearing surface of the recording head, a return pole magnetically coupled to the write pole, a conductor positioned adjacent to an edge of the write pole at the air bearing surface for carrying current to produce a magnetic field that saturates at least a portion of the write pole and augments a write field, a first conductive heat sink connected to a first end of the conductor, and a second conductive heat sink connected to a second end of the conductor.
A magnetic recording head comprising:
- a write pole having a tip adjacent to an air bearing surface of the recording head;
- a return pole magnetically coupled to the write pole;
- a conductor positioned adjacent to at least one edge of the write pole at the air bearing surface;
- a first conductive heat sink connected to a first end of the conductor;
- and
- a second conductive heat sink connected to a second end of the conductor;
- wherein current in the conductor and the first and second conductive heat sinks produces a magnetic field that saturates at least a portion of the write pole and augments a write field.
Dependencies are inferred from the claim text.