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：US20190153590A1

公开(公告)日：2019-05-23

申请号：US16260925

申请日：2019-01-29

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Tong Zhao ,  Michael C. Kautzky ,  Sarbeswar Sahoo ,  Justin Brons ,  Jie Gong ,  Yuhang Cheng

IPC: C23C14/58 ,  G11B5/31

Abstract: Devices having an air bearing surface (ABS), the device including a near field transducer, the near field transducer having a peg and a disc, the peg having a region adjacent the ABS, the peg including a plasmonic material selected from gold (Au), silver (Ag), copper (Cu), ruthenium (Ru), rhodium (Rh), aluminum (Al), or combinations thereof; and at least one other secondary atom selected from germanium (Ge), tellurium (Te), aluminum (Al), antimony (Sb), tin (Sn), mercury (Hg), indium (In), zinc (Zn), iron (Fe), copper (Cu), manganese (Mn), silver (Ag), chromium (Cr), cobalt (Co), and combinations thereof, wherein a concentration of the secondary atom is higher at the region of the peg adjacent the ABS than a concentration of the secondary atom throughout the bulk of the peg. Methods of forming NFTs are also disclosed.

公开(公告)号：US10192573B2

公开(公告)日：2019-01-29

申请号：US15073433

申请日：2016-03-17

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuhang Cheng ,  Ed F. Rejda ,  Andrew J. Boyne ,  Kurt W. Wierman ,  Michael Seigler ,  Scott Franzen ,  Jie Gong

IPC: G11B5/187 ,  G11B5/31 ,  G11B5/127 ,  G11B5/39 ,  G11B5/00 ,  G11B5/012 ,  G11B5/60

Abstract: Devices having an air bearing surface (ABS), the devices include a write pole; a near field transducer (NFT) including a peg and a disc, wherein the peg is at the ABS of the device; an overcoat, the overcoat including a low surface energy layer.

公开(公告)号：US20180366153A1

公开(公告)日：2018-12-20

申请号：US15952506

申请日：2018-04-13

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuhang Cheng ,  Tong Zhao ,  Michael C. Kautzky ,  Ed F. Rejda ,  Kurt W. Wierman ,  Scott Franzen ,  Sethuraman Jayashankar ,  Sarbeswar Sahoo ,  Jie Gong ,  Michael Allen Seigler

IPC: G11B13/08 ,  G11B7/24059 ,  C01F7/00 ,  C01G5/00 ,  C22C5/02 ,  C22C5/06 ,  C22C9/02 ,  C22C9/08 ,  C22C11/04 ,  C22C13/00 ,  C22C18/02 ,  C22C19/03 ,  C22C20/00 ,  C22C21/00 ,  C22C21/02 ,  G11B7/1387 ,  G11B5/60 ,  G11B5/48 ,  G11B5/31 ,  C23C14/58 ,  C22C38/06 ,  C22C27/06 ,  C22C27/02 ,  C22C27/00 ,  C22C22/00 ,  C22C21/10 ,  C22C9/04 ,  G11B5/00 ,  C22C9/05 ,  C22C28/00 ,  C22C30/02 ,  C22C9/06 ,  B32B15/01 ,  C22C9/10 ,  C22C21/06 ,  C22C5/10 ,  C22C9/00 ,  C22C24/00 ,  C22C5/04 ,  C22C19/07

CPC classification number: G11B13/08 ,  B32B15/01 ,  B32B15/018 ,  C01F7/00 ,  C01G5/00 ,  C22C5/02 ,  C22C5/04 ,  C22C5/06 ,  C22C5/10 ,  C22C9/00 ,  C22C9/02 ,  C22C9/04 ,  C22C9/05 ,  C22C9/06 ,  C22C9/08 ,  C22C9/10 ,  C22C11/04 ,  C22C13/00 ,  C22C18/02 ,  C22C19/03 ,  C22C19/07 ,  C22C20/00 ,  C22C21/00 ,  C22C21/003 ,  C22C21/02 ,  C22C21/06 ,  C22C21/10 ,  C22C22/00 ,  C22C24/00 ,  C22C27/00 ,  C22C27/02 ,  C22C27/025 ,  C22C27/06 ,  C22C28/00 ,  C22C30/02 ,  C22C38/06 ,  C23C14/5833 ,  G11B5/3106 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/4866 ,  G11B5/6088 ,  G11B7/1387 ,  G11B7/24059 ,  G11B2005/0021

Abstract: A device including a near field transducer, the near field transducer including gold (Au) and at least one other secondary atom, the at least one other secondary atom selected from: boron (B), bismuth (Bi), indium (In), sulfur (S), silicon (Si), tin (Sn), hafnium (Hf), niobium (Nb), manganese (Mn), antimony (Sb), tellurium (Te), carbon (C), nitrogen (N), and oxygen (O), and combinations thereof; erbium (Er), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), zinc (Zn), and combinations thereof; and barium (Ba), chlorine (Cl), cesium (Cs), dysprosium (Dy), europium (Eu), fluorine (F), gadolinium (Gd), germanium (Ge), hydrogen (H), iodine (I), osmium (Os), phosphorus (P), rubidium (Rb), rhenium (Re), selenium (Se), samarium (Sm), terbium (Tb), thallium (Th), and combinations thereof.

公开(公告)号：US10037771B2

公开(公告)日：2018-07-31

申请号：US15664189

申请日：2017-07-31

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Martin Blaber ,  Michael A. Seigler ,  Michael C. Kautzky ,  Tong Zhao ,  Justin Brons ,  John C. Duda ,  Yuhang Cheng

IPC: G11B5/02 ,  G11B11/00 ,  G11B5/31 ,  G11B5/00

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

Abstract: Devices having air bearing surfaces (ABS), the devices include a near field transducer (NFT) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein the disc includes a disc material and the peg includes a peg material, wherein the disc material is different from the peg material and wherein the disc material has a first real part of the permittivity and a peg material has a second real part of the permittivity and the second real part of the permittivity is not greater than the first real part of the permittivity.

公开(公告)号：US20180053520A1

公开(公告)日：2018-02-22

申请号：US15783164

申请日：2017-10-13

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Sarbeswar Sahoo ,  Martin Blaber ,  Hui Brickner ,  Tong Zhao ,  Yuhang Cheng ,  John Duda ,  Tae-Woo Lee

IPC: G11B5/31 ,  G11B5/60 ,  G11B5/00

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

Abstract: Devices having an air bearing surface (ABS), the devices including a write pole; a near field transducer (NFT) that includes a peg and a disc, wherein the peg is at the ABS of the device; a heat sink positioned adjacent the disc of the NFT; a dielectric gap positioned adjacent the peg of the NFT at the ABS of the device; and a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink, wherein the conformal diffusion barrier layer forms at least one angle that is not greater than 135°.

公开(公告)号：US09865283B2

公开(公告)日：2018-01-09

申请号：US15166765

申请日：2016-05-27

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Martin Blaber ,  Tong Zhao ,  Michael C. Kautzky ,  Justin Brons ,  John C. Duda ,  Yuhang Cheng ,  Michael A. Seigler

IPC: G11B11/00 ,  G11B5/31 ,  G11B5/00

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

Abstract: Devices that have an air bearing surface (ABS), the device includes a near field transducer (NFT) that includes a disc configured to convert photons incident thereon into plasmons; and a peg configured to couple plasmons coupled from the disc into an adjacent magnetic storage medium, wherein the disc includes a disc material that includes gold or an alloy thereof and the peg includes a peg material, wherein the disc material is different from the peg material and wherein the peg material has a real part of the permittivity that is not greater than that of gold.

公开(公告)号：US09792931B2

公开(公告)日：2017-10-17

申请号：US15060914

申请日：2016-03-04

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Sarbeswar Sahoo ,  Martin Blaber ,  Hui Brickner ,  Tong Zhao ,  Yuhang Cheng ,  John Duda ,  Tae-Woo Lee

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

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

Abstract: Devices having an air bearing surface (ABS), the devices including a write pole; a near field transducer (NFT) that includes a peg and a disc, wherein the peg is at the ABS of the device; a heat sink positioned adjacent the disc of the NFT; a dielectric gap positioned adjacent the peg of the NFT at the ABS of the device; and a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink, wherein the conformal diffusion barrier layer forms at least one angle that is not greater than 135°.

公开(公告)号：US20170125043A1

公开(公告)日：2017-05-04

申请号：US15407479

申请日：2017-01-17

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuhang Cheng ,  Kurt W. Wierman ,  Michael Seigler ,  Scott Franzen

IPC: G11B5/31 ,  G11B5/255 ,  G11B5/40

CPC classification number: G11B5/314 ,  G11B5/255 ,  G11B5/3106 ,  G11B5/3136 ,  G11B5/40 ,  G11B2005/0021

Abstract: Devices that include a near field transducer (NFT); a multilayer gas barrier layer positioned on at least a portion of the NFT, the multilayer gas barrier layer including at least a first and a second sublayer, where the second gas barrier sublayer is positioned on the first gas barrier sublayer, the first gas barrier sublayer is positioned adjacent the NFT and the second gas barrier sublayer is positioned adjacent the wear resistant layer, the first and second sublayers independently have thicknesses from 0.01 nm to 5 nm; and a wear resistance layer positioned on at least a portion of the gas barrier layer.

公开(公告)号：US09620150B2

公开(公告)日：2017-04-11

申请号：US14918687

申请日：2015-10-21

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuhang Cheng ,  Kurt W. Wierman ,  Michael Seigler ,  Xiaoyue Huang ,  Scott Franzen

IPC: G11B11/00 ,  G11B5/31 ,  C23C8/10 ,  C23C8/02 ,  C23C8/80 ,  G11B5/00

CPC classification number: G11B5/314 ,  C23C8/02 ,  C23C8/10 ,  C23C8/80 ,  G11B5/3106 ,  G11B9/12 ,  G11B2005/0021

Abstract: Devices that include a near field transducer (NFT); an amorphous gas barrier layer positioned on at least a portion of the NFT; and a wear resistance layer positioned on at least a portion of the gas barrier layer.