Back to results
US 9,786,311 B2Granted
Near-field transducer with tapered peg
AssigneeSeagate Technology LLC
InventorWeibin Chen
Life of this patent
Estimating the term…
Abstract
An apparatus includes a waveguide that delivers energy from an energy source, a write pole located proximate the waveguide at a media-facing surface, and a near-field transducer located proximate the write pole in a down track direction. The near-field transducer includes an enlarged portion and a peg extending from the enlarged portion towards the media-facing surface. The peg comprises a taper facing away from the write pole, and the taper causes a reduced down track dimension of the peg near the media-facing surface.
Claims19
An apparatus, comprising:
- a waveguide that delivers energy from an energy source;
- a write pole located proximate the waveguide at a media-facing surface;
- a near-field transducer located proximate the write pole in a down track direction, the near-field transducer comprising:
- an enlarged portion;
- and
- a peg extending from the enlarged portion towards the media-facing surface, the peg comprising a taper facing away from the write pole, the taper comprising a first end and a second end, where the first end is proximate the media-facing surface at a distal end of the peg and the second end is recessed about 30-200 nm from the pea distal end and causing a reduced down track dimension of the peg near the media-facing surface.
3 more elements
An apparatus, comprising:
- a waveguide that delivers energy from an energy source;
- a write pole located proximate the waveguide at a media-facing surface;
- a near-field transducer located proximate the write pole in a down track direction, the near-field transducer comprising:
- an enlarged portion;
- and
- a peg extending from the enlarged portion towards the media-facing surface, the peg and the enlarged portion comprising a taper facing away from the write pole, the taper comprising a first end and a second end, where the first end is proximate the media-facing surface at a distal end of the peg and the second end is recessed about 30-200 nm from the peg distal end and causing a reduced down track dimension of the peg near the media-facing surface.
3 more elements
An apparatus, comprising:
- a waveguide that delivers energy from an energy source;
- a write pole located proximate the waveguide at a media-facing surface;
- a near-field transducer located proximate the write pole in a down track direction, the near-field transducer comprising:
- an enlarged portion comprising a first material;
- and
- a peg comprising a second material and including a peg portion extending from the enlarged portion towards the media-facing surface, the peg portion comprising a taper facing away from the write pole, the taper comprising a first end and a second end, where the first end is proximate the media-facing surface at a distal end of the peg and the second end is recessed about 30-200 nm from the peg distal end and causing a reduced down track dimension of the peg near the media-facing surface.
3 more elements
Dependencies are inferred from the claim text.