公开(公告)号：US11289119B1

公开(公告)日：2022-03-29

申请号：US16828030

申请日：2020-03-24

Applicant: Seagate Technology LLC

Inventor： Mourad Benakli ,  Kirill Alexander Rivkin ,  Hua Zhou ,  Martin Giles Blaber ,  TaeWoo Lee ,  Michael Allen Seigler ,  Huaqing Yin

IPC: G11B5/17 ,  G11B5/31 ,  G11B5/39 ,  G11B5/127 ,  G11B5/00

Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. A write pole has a leading edge proximate to and facing the near-field transducer at the media-facing surface. A magnetic shield faces the leading edge of the write pole at the media-facing surface and is magnetically coupled to the write pole. The magnetic shield has a notch centered over the near-field transducer.

公开(公告)号：US10714137B1

公开(公告)日：2020-07-14

申请号：US16353237

申请日：2019-03-14

Applicant: Seagate Technology LLC

Inventor： Vivek Krishnamurthy ,  TaeWoo Lee ,  Michael Allen Seigler ,  Peng Zhang ,  Martin Giles Blaber

IPC: G11B11/105 ,  G11B5/60 ,  G11B5/31 ,  G11B5/00 ,  G11B5/48

Abstract: A recording head includes a waveguide core layer that delivers light from a light source to a region proximate a magnetic write pole. A near-field transducer that is formed of a thin metal film is deposited over the waveguide core layer. The near-field transducer includes an enlarged part with two straight edges facing a media-facing surface and at obtuse angles relative to the media-facing surface. A peg extends from the enlarged part towards the media-facing surface. The near-field transducer includes a metal aperture plate at the media-facing surface. The metal aperture plate surrounds at least three sides of the end of the peg.

公开(公告)号：US10811035B1

公开(公告)日：2020-10-20

申请号：US16524538

申请日：2019-07-29

Applicant: Seagate Technology LLC

Inventor： TaeWoo Lee ,  David M. Grundman

IPC: G11B5/187 ,  G11B5/127 ,  G11B5/60 ,  G11B5/48

Abstract: A recording head includes a waveguide core and write pole extending to a media-facing surface of the recording head. A near-field transducer is located between the waveguide core and the write pole. First and second side shields are located on either crosstrack side of the near-field transducer. The first and second shields have edges facing and conformal with first and second tapered sides and a peg of the near-field transducer such that there are respective first and second constant-width gaps therebetween.