公开(公告)号：US10403313B1

公开(公告)日：2019-09-03

申请号：US15991010

申请日：2018-05-29

Applicant: Seagate Technology LLC

Inventor： Choon How Gan ,  Mark Anthony Gubbins ,  Roberto Fernandez Garcia ,  Michael James Hardy ,  Andres David Barbosa Neira ,  Yuhang Cheng ,  Weibin Chen

IPC: G11B11/105 ,  G11B5/48 ,  G11B13/08 ,  G02B6/122 ,  G11B5/31 ,  G11B5/00

Abstract: An apparatus includes a slider configured for heat-assisted magnetic recording. The slider comprises an input coupler configured to receive light excited by a light source and a waveguide. The waveguide comprises a waveguide core tapering along a light propagation direction from a first cross-sectional width to a second cross-sectional width. The second cross sectional width is smaller than the first cross sectional width. The waveguide core comprises a trench at an output end. The waveguide comprises at least one cladding layer surrounding the waveguide core. The waveguide is configured to provide a surface plasmon-enhanced near-field radiation pattern proximate the output end in response to the received light.

公开(公告)号：US10121496B1

公开(公告)日：2018-11-06

申请号：US15901991

申请日：2018-02-22

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Tae-Woo Lee ,  Peng Zhang ,  Weibin Chen

IPC: G11B11/00 ,  G11B5/31 ,  G11B5/48 ,  G11B5/00 ,  G11B11/105 ,  G11B7/1387

Abstract: A write head includes a waveguide, a magnetic pole, and a near-field transducer. The near-field transducer includes an enlarged portion and a peg. The peg is separated from the magnetic pole in a downtrack direction by a dielectric gap. A peg coupler covers a bottom surface of the magnetic pole and is separated from the peg. The peg coupler is formed of a first plasmonic material. A pad extends from the peg coupler into part of the gap in the downtrack direction towards the peg. The pad is formed of a second plasmonic material and extends into the write head away from the media-facing surface a distance L that is less than a corresponding distance of the peg coupler.

公开(公告)号：US09626991B2

公开(公告)日：2017-04-18

申请号：US15183065

申请日：2016-06-15

Applicant: Seagate Technology LLC

Inventor： Weibin Chen ,  Chubing Peng ,  Werner Scholz

IPC: G11B13/08 ,  G11B5/31 ,  G11B5/60 ,  G11B5/48 ,  G11B5/00

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

Abstract: A near-field transducer includes an enlarged region having a top side adjacent to a magnetic pole, a base side opposite the top side, and a circumference that extends from proximal to a media-facing surface to distal to a media-facing surface. The near-field transducer includes a peg region in contact with a region of the bas side of the enlarged region, the peg region extending from the enlarged region towards the media-facing surface. The near-field transducer also includes a heat sink region having a contact side, a base side, and a circumference that extends from proximal to the media-facing surface to distal from the media-facing surface. The contact side of the heat sink region is in thermal contact with both the peg region and at least a region of the base side of the enlarged region.

公开(公告)号：US20160351209A1

公开(公告)日：2016-12-01

申请号：US15163035

申请日：2016-05-24

Applicant: Seagate Technology LLC

Inventor： Weibin Chen ,  Martin Blaber ,  Tong Zhao ,  Michael Christopher Kautzky ,  John Charles Duda

IPC: G11B5/31

CPC classification number: G11B5/314 ,  G11B5/3116 ,  G11B5/3133 ,  G11B2005/0021

Abstract: A near-field transducer includes first and second stacked base portions having a common outline shape. The second base portion is proximate alight delivery structure. A peg extends from the first base portion towards a media-facing surface. The peg includes a material that is more thermally robust than a plasmonic material of the base portion. The peg has a peg thickness that is less than a thickness of the first base portion. The first base portion has a first recess proximate the peg. The first recess separates the first base portion from the media-facing surface and exposes at least a top side of the peg.

Abstract translation: 近场换能器包括具有共同轮廓形状的第一和第二堆叠基部。 第二基部是靠近的输送结构。 钉从第一基部向面向介质的表面延伸。 钉子包括比基部的等离子体激元材料更耐热的材料。 钉具有小于第一基部的厚度的钉厚度。 第一基部具有靠近钉的第一凹部。 第一凹部将第一基部与面向介质的表面分开，并且至少暴露出钉的顶侧。

公开(公告)号：US11661788B2

公开(公告)日：2023-05-30

申请号：US17583550

申请日：2022-01-25

Applicant: Seagate Technology LLC

Inventor： Weibin Chen ,  Nan Zhou ,  Ruoxi Yang ,  Michael Allen Siegler

IPC: G11B5/00 ,  G11B11/105 ,  E06B1/62 ,  C08L95/00 ,  E04B1/66 ,  E04F19/04

CPC classification number: E06B1/62 ,  C08L95/005 ,  E04B1/665 ,  E04F19/045 ,  E04F19/0459 ,  E06B2001/628

Abstract: A recording head has a near-field transducer that extends a first distance away from a media-facing surface. Two subwavelength focusing mirrors are at an end of a waveguide proximate the media-facing surface and extend a second distance away from the media-facing surface that is less than the first distance. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface and a plasmonic material that covers an edge of the subwavelength focusing mirror that faces the near-field transducer. The first material is more mechanically robust than the plasmonic material.

公开(公告)号：US11538496B2

公开(公告)日：2022-12-27

申请号：US17319444

申请日：2021-05-13

Applicant: Seagate Technology LLC

Inventor： Helene Parwana Habibi ,  Simon Bance ,  Martin Liam McGarry ,  Raul Horacio Andruet ,  Martin Giles Blaber ,  Weibin Chen ,  John Charles Duda ,  Mark Anthony Gubbins ,  Erik Jon Hutchinson ,  Vivek Krishnamurthy ,  Michael Allen Seigler ,  Chen Wang

IPC: G11B11/105 ,  G11B11/24 ,  G11B5/40 ,  G11B5/187 ,  G11B5/31 ,  G11B13/08 ,  G11B5/00

Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.

公开(公告)号：US11107497B1

公开(公告)日：2021-08-31

申请号：US16724558

申请日：2019-12-23

Applicant: Seagate Technology LLC

Inventor： Ruoxi Yang ,  YongJun Zhao ,  Nan Zhou ,  Weibin Chen ,  Huaqing Yin ,  Michael Allen Seigler

IPC: G11B7/1362 ,  G11B5/60 ,  G11B13/08 ,  G11B5/31 ,  G11B7/1387 ,  G11B11/105 ,  G11B5/00

Abstract: A recording head includes a near-field transducer proximate a media-facing surface of the recording head and a waveguide that overlaps and delivers light to the near-field transducer. The recording head includes subwavelength-sized focusing mirror comprising first and second reflectors disposed on cross track sides of the near-field transducer. Each of the first and second reflectors is spaced apart from the media-facing surface by a distance, D, measured along an axis normal to the media-facing surface.

公开(公告)号：US10410664B1

公开(公告)日：2019-09-10

申请号：US15939520

申请日：2018-03-29

Applicant: Seagate Technology LLC

Inventor： Yuhang Cheng ,  Nan Zhou ,  Yongjun Zhao ,  Huaqing Yin ,  Weibin Chen ,  Michael Allen Seigler

IPC: G11B5/09 ,  G11B5/60 ,  G11B5/31 ,  G11B5/00

Abstract: A near-field transducer has an enlarged portion with a layer of soft plasmonic material. A peg is embedded in a lower part of the enlarged portion that faces a media-facing surface. The peg has an elongated outer part that extends from a lower edge of the enlarged portion towards the media-facing surface and an embedded part that is embedded within the enlarged portion. The embedded part could be any shape. The peg is formed of a thermally robust plasmonic material.

公开(公告)号：US20160300589A1

公开(公告)日：2016-10-13

申请号：US15183065

申请日：2016-06-15

Applicant: Seagate Technology LLC

Inventor： Weibin Chen ,  Chubing Peng ,  Werner Scholz

IPC: G11B5/31 ,  G11B5/60 ,  G11B5/48

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

Abstract: A near-field transducer includes an enlarged region having a top side adjacent to a magnetic pole, a base side opposite the top side, and a circumference that extends from proximal to a media-facing surface to distal to a media-facing surface. The near-field transducer includes a peg region in contact with a region of the bas side of the enlarged region, the peg region extending from the enlarged region towards the media-facing surface. The near-field transducer also includes a heat sink region having a contact side, a base side, and a circumference that extends from proximal to the media-facing surface to distal from the media-facing surface. The contact side of the heat sink region is in thermal contact with both the peg region and at least a region of the base side of the enlarged region.

公开(公告)号：US09373348B2

公开(公告)日：2016-06-21

申请号：US14087785

申请日：2013-11-22

Applicant: Seagate Technology LLC

Inventor： Michael Seigler ,  Weibin Chen ,  Werner Scholz ,  Jan Ulrich Thiele ,  Lihong Zhang ,  Xiong Liu ,  Shashwat Shukla

IPC: G11B7/24 ,  G11B5/72 ,  G11B5/00 ,  G11B5/82

CPC classification number: G11B5/72 ,  G11B5/82 ,  G11B2005/0021 ,  G11B2220/23 ,  Y10T428/11 ,  Y10T428/115 ,  Y10T428/1164 ,  Y10T428/1193

Abstract: An apparatus that includes a storage layer and a heating assistance element. The heating assistance element is adjacent to the storage layer or doped into the storage layer. The heating assistance element is configured to enhance spatial confinement of energy from a field to an area of the storage layer to which the field is applied.

Abstract translation: 一种包括存储层和加热辅助元件的设备。 加热辅助元件与存储层相邻或掺入到存储层中。 加热辅助元件被配置为增强能量从场到被施加场的存储层的区域的空间限制。