Writer structure with assisted bias
AssigneeSeagate Technology LLC
InventorsSong Sheng Xue, Mark Thomas Kief, Johannes van Ek, Nural Amin, Olle Gunner Heinonen, Kaizhong Gao, Patrick Joseph Ryan
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Abstract
A recording head for use with a storage medium is provided. The recording head includes a substrate, a magnetic pole, a first magnetic bias structure positioned on a first side of the magnetic pole, and a second magnetic bias structure positioned on a second side of the magnetic pole, Spacer material is positioned between the magnetic pole and the first magnetic bias structure and between the magnetic pole and the second magnetic bias structure.
Claims19
A recording head for use with a storage medium, comprising:
- a substrate having an edge;
- a magnetic pole;
- a first magnetic bias structure positioned on the edge on a first side of the magnetic pole;
- a second magnetic bias structure positioned on the edge on a second side of the magnetic pole that is opposite the first side;
- spacer material positioned between the magnetic pole and the first magnetic bias structure and between the magnetic pole and the second magnetic bias structure;
- and
- a soft magnetic shield, wherein the spacer material is positioned between the magnetic pole and the soft magnetic shield.
A head, comprising:
- a substrate having a trailing edge;
- a magnetic pole tip coupled to the trailing edge of the substrate;
- a coil adapted to orient a magnetic field of the magnetic pole tip;
- and
- an assist mechanism spaced apart from the pole tip and adapted to provide a supplemental magnetic field, wherein the assist mechanism includes an RF oscillator.
A head, comprising:
- a substrate having a trailing edge;
- a magnetic pole tip coupled to the trailing edge of the substrate;
- a coil adapted to orient a magnetic field of the magnetic pole tip;
- and
- an assist mechanism spaced apart from the pole tip and adapted to provide a supplemental
- magnetic field, wherein the assist mechanism is adapted to orient the magnetic field of the magnetic pole to be substantially perpendicular to the trailing edge of the substrate.
Dependencies are inferred from the claim text.