公开(公告)号：US10431244B2

公开(公告)日：2019-10-01

申请号：US15864480

申请日：2018-01-08

Applicant: SEAGATE TECHNOLOGY LLC

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

IPC: G11B5/09 ,  G11B5/31 ,  G11B5/00

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：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：US20190164570A1

公开(公告)日：2019-05-30

申请号：US16260910

申请日：2019-01-29

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

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：US10304482B2

公开(公告)日：2019-05-28

申请号：US15073423

申请日：2016-03-17

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuhang Cheng ,  Michael Seigler ,  Scott Franzen ,  Tong Zhao ,  Xiaoyue Huang ,  Steven C. Riemer ,  Robert Anthony Fernandez ,  Douglas H. Cole

IPC: G11B5/187 ,  G11B5/40 ,  G11B5/60 ,  G11B5/31 ,  G11B5/00

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：US10192574B2

公开(公告)日：2019-01-29

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: G11B7/00 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00

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：US20180102137A1

公开(公告)日：2018-04-12

申请号：US15837423

申请日：2017-12-11

Applicant: SEAGATE TECHNOLOGY LLC.

Inventor： Yuhang Cheng ,  Sami Antrazi ,  Michael Seigler ,  Scott Franzen ,  Philip G. Pitcher ,  Edwin F. Rejda ,  Kurt W. Wierman

IPC: G11B5/31 ,  G11B5/00

Abstract: Methods that include forming at least a portion of a near field transducer (NFT) structure; depositing a material onto at least one surface of the portion of the NFT to form a metal containing layer; and subjecting the metal containing layer to conditions that cause diffusion of at least a portion of the material into the at least one surface of the portion of the NFT; and devices formed thereby.

公开(公告)号：US20170345448A1

公开(公告)日：2017-11-30

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: G11B5/31 ,  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：US09822444B2

公开(公告)日：2017-11-21

申请号：US14938018

申请日：2015-11-11

Applicant: SEAGATE TECHNOLOGY LLC

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

IPC: G11B11/00 ,  C23C14/58 ,  G11B5/31 ,  G11B5/00 ,  G11B5/60

CPC classification number: C23C14/5806 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

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, and a method of forming NFT thereof.

公开(公告)号：US09799353B2

公开(公告)日：2017-10-24

申请号：US14845317

申请日：2015-09-04

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuhang Cheng ,  Tong Zhao ,  Michael C. Kautzky ,  Ed F. Rejda ,  Kurt W. Wierman ,  Scott Franzen ,  Andrew J. Boyne ,  Michael Allen Seigler ,  Sethuraman Jayashankar

IPC: G11B11/00 ,  G11B5/31 ,  G11B5/84 ,  B05D1/36 ,  G11B5/85 ,  G11B5/851 ,  G11B5/858 ,  G11B5/60 ,  G11B5/48 ,  G11B5/00 ,  G11B7/1387

CPC classification number: G11B5/314 ,  B05D1/36 ,  G11B5/3106 ,  G11B5/3163 ,  G11B5/4866 ,  G11B5/6088 ,  G11B5/84 ,  G11B5/85 ,  G11B5/851 ,  G11B5/858 ,  G11B7/1387 ,  G11B2005/0021

Abstract: A device that includes a near field transducer (NFT), the NFT having a disc and a peg, and the peg having an air bearing surface thereof; and at least one adhesion layer positioned on at least the air bearing surface of the peg, the adhesion layer including one or more of platinum (Pt), iridium (Ir), ruthenium (Ru), rhodium (Rh), palladium (Pd), yttrium (Y), chromium (Cr), nickel (Ni), and scandium (Sc).

公开(公告)号：US09502054B2

公开(公告)日：2016-11-22

申请号：US14972295

申请日：2015-12-17

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuhang Cheng ,  Tong Zhao ,  Michael C. Kautzky ,  Ed F. Rejda ,  Kurt W. Wierman ,  Scott Franzen ,  Michael Allen Seigler

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

CPC classification number: G11B5/314 ,  G11B5/3106 ,  G11B5/4866 ,  G11B5/6088 ,  G11B13/08 ,  G11B2005/0021

Abstract: Devices that include a near field transducer (NFT), the NFT including a peg having five surfaces, the peg including a first material, the first material including gold (Au), silver (Ag), aluminum (Al), copper (Cu), ruthenium (Ru), rhodium (Rh), iridium (Ir), or combinations thereof; an overlying structure; and at least one intermixing layer, positioned between the peg and the overlying structure, the at least one intermixing layer positioned on at least one of the five surfaces of the peg, the intermixing layer including at least the first material and a second material.