公开(公告)号：US08605556B1

公开(公告)日：2013-12-10

申请号：US13675812

申请日：2012-11-13

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Yongjun Zhao

IPC: G11B11/00

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

Abstract: An apparatus includes a near-field transducer that having two metal elements configured as side-by-side plates on a substrate-parallel plane with a gap therebetween. The gap is disposed along the substrate-parallel plane and has an output end at a media-facing surface, and an input end opposite the output end. A channel waveguide is configured to deliver light to the input end of the near-field transducer. The channel waveguide has a core and cladding, and a portion of the core extends into the gap of the near-field transducer.

Abstract translation: 一种装置包括近场换能器，其具有在基板平行平面上配置为并排的两个金属元件，其间具有间隙。 间隙沿着基板平行平面布置，并且在面向介质的表面上具有输出端，以及在输出端相对的输入端。 通道波导被配置为将光传送到近场换能器的输入端。 通道波导具有芯和包层，并且芯的一部分延伸到近场换能器的间隙中。

公开(公告)号：US10748572B1

公开(公告)日：2020-08-18

申请号：US16243355

申请日：2019-01-09

Applicant: Seagate Technology LLC

Inventor： Ruoxi Yang ,  Yongjun Zhao ,  Weibin Chen

IPC: G11B11/105 ,  G11B11/24 ,  G11B5/012 ,  G11B5/00 ,  G11B5/31 ,  G11B5/60

Abstract: A recording head comprises a waveguide extending to an air-bearing surface, and the waveguide comprises a core surrounded by cladding layers. A near-field transducer is disposed on a first side of the core, and a reflector, comprising a layer of metallic material, is disposed on a second side of the core facing away from the first side. The reflector extends beyond the core in a cross-track direction and extends in a direction normal to the air-bearing surface. The reflector has a thickness in a downtrack direction of less than 200 nm.

公开(公告)号：US10100422B2

公开(公告)日：2018-10-16

申请号：US14036032

申请日：2013-09-25

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Lien Lee ,  Jie Gong ,  Venkatram Venkatasamy ,  Yongjun Zhao ,  Lijuan Zou ,  Dongsung Hong ,  Ibro Tabakovic ,  Mark Ostrowski

IPC: C25D5/02 ,  C25D5/10 ,  C25D7/00 ,  C25D1/00

Abstract: Methods of forming near field transducers (NFTs) including electrodepositing a plasmonic material.

公开(公告)号：US20170263276A1

公开(公告)日：2017-09-14

申请号：US15606040

申请日：2017-05-26

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Vijay Karthik Sankar ,  Tong Zhao ,  Yongjun Zhao ,  Michael C. Kautzky ,  Hui Brickner ,  Sarbeswar Sahoo

IPC: G11B5/60 ,  G11B5/31 ,  G11B7/24059

CPC classification number: G11B5/6088 ,  B05B1/36 ,  G11B5/31 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/4866 ,  G11B5/84 ,  G11B5/85 ,  G11B7/24059 ,  G11B2005/0021

Abstract: Devices that include a near field transducer (NFT), the NFT having a disc and a peg, and the peg having five surfaces thereof; and at least one adhesion layer positioned on at least one of the five surfaces of the peg, the adhesion layer including one or more of the following: yttrium (Y), tin (Sn), iron (Fe), copper (Cu), carbon (C), holmium (Ho), gallium (Ga), silver (Ag), ytterbium (Yb), chromium (Cr), tantalum (Ta), iridium (Ir), zirconium (Zr), yttrium (Y), scandium (Sc), cobalt (Co), silicon (Si), nickel (Ni), molybdenum (Mo), niobium (Nb), palladium (Pd), titanium (Ti), rhenium (Re), osmium (Os), platinum (Pt), aluminum (Al), ruthenium (Ru), rhodium (Rh), vanadium (V), germanium (Ge), tin (Sn), magnesium (Mg), iron (Fe), copper (Cu), tungsten (W), hafnium (Hf), carbon (C), boron (B), holmium (Ho), antimony (Sb), gallium (Ga), manganese (Mn), silver (Ag), indium (In), bismuth (Bi), zinc (Zn), ytterbium (Yb), and combinations thereof.

公开(公告)号：US20160275972A1

公开(公告)日：2016-09-22

申请号：US15073445

申请日：2016-03-17

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Tong Zhao ,  Yuhang Cheng ,  Martin Giles Blaber ,  Jie Gong ,  Edwin F. Rejda ,  Michael A. Seigler ,  Seung-Yeul Yang ,  Michael Kautzky ,  Yongjun Zhao ,  Justin Brons ,  Andrew J. Boyne ,  Kurt W. Wierman ,  Scott Franzen

IPC: G11B5/39 ,  G11B5/187 ,  G11B5/60

CPC classification number: G11B5/314 ,  G11B5/012 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/3967 ,  G11B5/6088 ,  G11B2005/0021

Abstract: Devices having an air bearing surface (ABS) and including a write pole; a near field transducer (NFT) that includes a peg and a disc, wherein the peg includes a rear peg portion and a peg tip, the rear peg portion and the peg tip are different materials and the peg tip includes: one or more metals; one or more nanoparticles comprising oxides, nitrides, carbides or combinations thereof; one or more conducting oxides, conducting nitrides, conducting bromides, conducting carbides, or combinations thereof; one or more semiconductors; or combinations thereof.

Abstract translation: 具有空气轴承表面（ABS）并且包括写柱的装置; 包括钉和盘的近场传感器（NFT），其中所述钉包括后钉部分和钉尖，所述后钉部分和所述钉尖是不同的材料，所述钉尖包括：一种或多种金属; 一种或多种包含氧化物，氮化物，碳化物或其组合的纳米颗粒; 一种或多种导电氧化物，导电氮化物，导电溴化物，导电碳化物或其组合; 一个或多个半导体; 或其组合。

公开(公告)号：US09283651B2

公开(公告)日：2016-03-15

申请号：US14019903

申请日：2013-09-06

Applicant: Seagate Technology LLC

Inventor： Yongjun Zhao ,  David C. Seets ,  Mark Ostrowski

IPC: B24B37/10 ,  B24B49/10 ,  B24B37/013 ,  G11B5/31

CPC classification number: B24B49/10 ,  B24B37/013 ,  G11B5/3169 ,  G11B5/3173

Abstract: An electrical lapping guide has a body with a thickness along a wafer axis, the body comprising a layer of conductive material having a resistivity. The conductive material layer comprises a first contact region and a second contact region, the first and second contact regions configured to electrically connect the electrical lapping guide to electrical leads. A lapping edge comprises an air-bearing plane axis perpendicular to a lapping axis, and a back edge opposite the lapping edge, the back edge comprising a plurality of notches.

Abstract translation: 电研磨引导件具有沿着晶片轴线的厚度的主体，主体包括具有电阻率的导电材料层。 导电材料层包括第一接触区域和第二接触区域，第一和第二接触区域被配置为将电研磨引导件电连接到电引线。 研磨边缘包括垂直于研磨轴线的空气轴承平面轴线和与研磨边缘相对的后边缘，后边缘包括多个凹口。

公开(公告)号：US09142231B2

公开(公告)日：2015-09-22

申请号：US13794133

申请日：2013-03-11

Applicant: Seagate Technology LLC

Inventor： Yongjun Zhao ,  Lien Lee ,  Lijuan Zou ,  Mark Henry Ostrowski

IPC: G11B5/127 ,  H04R31/00 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49048 ,  Y10T29/49052

Abstract: A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.

Abstract translation: 制造本文公开的换能器头的方法包括在换能器头的NFT层上沉积间隔层，在换能器的间隔层上形成蚀刻停止层，在蚀刻停止层上沉积包覆层，以及研磨包层 层，其倾斜角度使得铣削在蚀刻停止层处停止。

公开(公告)号：US09076475B2

公开(公告)日：2015-07-07

申请号：US14546767

申请日：2014-11-18

Applicant: Seagate Technology LLC

Inventor： Hua Zhou ,  Yongjun Zhao ,  Chris Rea ,  Werner Scholz ,  James G. Wessel

IPC: G11B5/60 ,  G11B13/08 ,  G11B5/84 ,  G11B5/127 ,  G11B5/187 ,  G11B5/31 ,  G11B5/48 ,  G11B5/00

CPC classification number: G11B5/6082 ,  G11B5/1272 ,  G11B5/187 ,  G11B5/31 ,  G11B5/3116 ,  G11B5/3136 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/84 ,  G11B13/08 ,  G11B2005/0021

Abstract: An apparatus includes a waveguide and a near-field transducer adjacent the waveguide. The near-field transducer includes an enlarged region and a peg region extending from the enlarged region towards an air bearing surface. A write pole is adjacent the near-field transducer and include a first portion having an edge extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface. A second portion of the write pole extends orthogonally to the air bearing surface and is in contact with the first portion. The apparatus includes an insulator-filled gap at the air bearing surface between the second portion of the write pole and the peg region of the near-field transducer. The gap is bounded away from the air bearing surface by the enlarged region of the near-field transducer.

Abstract translation: 一种装置包括波导和邻近波导的近场换能器。 近场换能器包括从扩大区域向空气轴承表面延伸的扩大区域和钉区域。 写极与邻近的换能器相邻并且包括具有相对于空气支承表面以非正交角度朝向空气支承表面延伸的边缘的第一部分。 写磁极的第二部分垂直于空气轴承表面延伸并且与第一部分接触。 该装置包括在写极的第二部分和近场换能器的钉区之间的空气支承表面处的绝缘体填充间隙。 间隙通过近场换能器的放大区域与空气轴承表面隔开。

公开(公告)号：US20150072593A1

公开(公告)日：2015-03-12

申请号：US14019903

申请日：2013-09-06

Applicant: Seagate Technology LLC

Inventor： Yongjun Zhao ,  David C. Seets ,  Mark Ostrowski

IPC: B24B49/10 ,  G11B5/31 ,  B24B37/013

CPC classification number: B24B49/10 ,  B24B37/013 ,  G11B5/3169 ,  G11B5/3173

Abstract: An electrical lapping guide has a body with a thickness along a wafer axis, the body comprising a layer of conductive material having a resistivity. The conductive material layer comprises a first contact region and a second contact region, the first and second contact regions configured to electrically connect the electrical lapping guide to electrical leads. A lapping edge comprises an air-bearing plane axis perpendicular to a lapping axis, and a back edge opposite the lapping edge, the back edge comprising a plurality of notches.

Abstract translation: 电研磨引导件具有沿着晶片轴线的厚度的主体，主体包括具有电阻率的导电材料层。 导电材料层包括第一接触区域和第二接触区域，第一和第二接触区域被配置为将电研磨引导件电连接到电引线。 研磨边缘包括垂直于研磨轴线的空气轴承平面轴线和与研磨边缘相对的后边缘，后边缘包括多个凹口。

公开(公告)号：US20140251948A1

公开(公告)日：2014-09-11

申请号：US13789252

申请日：2013-03-07

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yongjun Zhao ,  Dongsung Hong ,  Lijuan Zou ,  Mark Ostrowski

IPC: G11B5/127

CPC classification number: G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

Abstract: The disclosed methods enable the production of plasmonic near-field transducers that are useful in heat-assisted magnetic recording. The plasmonic near-field transducers have an enlarged region and a peg region. The peg region includes a peg region in proximity to an air-bearing surface above a recording medium and also includes a flared region between and in contact with the enlarged region and the peg region. The flared region can act as a heat sink and can lower the thermal resistance of the peg portion of the near-field transducer, thus reducing its temperature.

Abstract translation: 所公开的方法使得能够生产在热辅助磁记录中有用的等离子体激元近场换能器。 等离子体激元近场换能器具有扩大的区域和钉区域。 钉区域包括靠近记录介质上方的空气轴承表面的钉区域，并且还包括在扩大区域和钉区域之间并与其接触的扩口区域。 扩口区域可以用作散热器，并且可以降低近场换能器的钉部分的热阻，从而降低其温度。