Recording head with near field transducer having non-rectangular pin cross section
AssigneeWestern Digital (Fremont), LLC
InventorsChristopher B. Wolf, Eric J. Champion, Kroum S. Stoev
Life of this patent
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Abstract
A near field transducer (NFT) for use in an energy assisted magnetic recording (EAMR) head and configured to direct energy to a recording media is disclosed. The NFT comprises a disk section; and a pin section extending towards an air bearing surface (ABS) from the disk section. The pin section has a proximal end adjoining the disk section and a distal end opposite to the proximal end and facing the ABS, wherein the distal end of the pin section has a non-rectangular cross section in a plane parallel to the ABS and the proximal end of the pin section has a rectangular cross section in the plane parallel to the ABS.
Claims8
An energy assisted magnetic recording (EAMR) head for writing to a recording media, the EAMR head comprising:
- a write pole for providing a magnetic field for writing to the recording media;
- at least one laser for providing energy to the recording media to assist the writing;
- and
- a near field transducer (NFT) disposed adjacent to the write pole and coupled with the at least one laser, the NFT configured to direct the energy to a corresponding thermal spot on the recording media,
- wherein the NFT comprises a disk section and a pin section extending towards an air bearing surface (ABS) from the disk section, the pin section having a proximal end adjoining the disk section and a distal end opposite to the proximal end and facing the ABS, and
- wherein the distal end of the pin section has a non-rectangular cross section in a plane parallel to the ABS and the proximal end of the pin section has a rectangular cross section in the plane parallel to the ABS.
Dependencies are inferred from the claim text.