公开(公告)号：US09449626B2

公开(公告)日：2016-09-20

申请号：US14886524

申请日：2015-10-19

Applicant: Seagate Technology LLC

Inventor： Tae-Woo Lee ,  David M. Grundman

IPC: G11B5/02 ,  G11B5/147 ,  G11B5/48 ,  G11B11/00 ,  G11B5/00

CPC classification number: G11B5/4866 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus includes a waveguide, a magnetic pole, and a near-field transducer. The near field transducer is positioned at or near a media-facing surface. The near-field transducer is operatively coupled to the waveguide. The near-field transducer includes an enlarged region. The near-field transducer also includes a peg region extending from the enlarged region towards the media-facing surface. The peg region is separated from the magnetic pole. The near-field transducer also includes a structure positioned between the magnetic pole and the peg region. The structure is separated from the peg region by a gap. The structure extends from the enlarged region towards the media-facing surface. The structure is configured to extend generation of surface plasmons toward the magnetic pole.

Abstract translation: 一种装置包括波导，磁极和近场换能器。 近场换能器被定位在面向介质的表面上或附近。 近场换能器可操作地耦合到波导。 近场换能器包括放大区域。 近场换能器还包括从扩大区域延伸朝向介质面向表面延伸的钉区域。 钉区与磁极分离。 近场换能器还包括位于磁极和钉区之间的结构。 该结构通过间隙与钉区分离。 该结构从扩大的区域向面向介质的表面延伸。 该结构被配置为将表面等离子体激元的产生延伸到磁极。

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.

公开(公告)号：US20160133286A1

公开(公告)日：2016-05-12

申请号：US14886524

申请日：2015-10-19

Applicant: Seagate Technology LLC

Inventor： Tae-Woo Lee ,  David M. Grundman

IPC: G11B5/48

CPC classification number: G11B5/4866 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus includes a waveguide, a magnetic pole, and a near-field transducer. The near field transducer is positioned at or near a media-facing surface. The near-field transducer is operatively coupled to the waveguide. The near-field transducer includes an enlarged region. The near-field transducer also includes a peg region extending from the enlarged region towards the media-facing surface. The peg region is separated from the magnetic pole. The near-field transducer also includes a structure positioned between the magnetic pole and the peg region. The structure is separated from the peg region by a gap. The structure extends from the enlarged region towards the media-facing surface. The structure is configured to extend generation of surface plasmons toward the magnetic pole.

Abstract translation: 一种装置包括波导，磁极和近场换能器。 近场换能器被定位在面向介质的表面上或附近。 近场换能器可操作地耦合到波导。 近场换能器包括放大区域。 近场换能器还包括从扩大区域延伸朝向介质面向表面延伸的钉区域。 钉区与磁极分离。 近场换能器还包括位于磁极和钉区之间的结构。 该结构通过间隙与钉区分离。 该结构从扩大的区域向面向介质的表面延伸。 该结构被配置为将表面等离子体激元的产生延伸到磁极。