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    Methods of forming materials
    111.
    发明授权
    Methods of forming materials 有权

    公开(公告)号：US11164600B1

    公开(公告)日：2021-11-02

    申请号：US16551085

    申请日：2019-08-26

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Tong Zhao ,  Michael C. Kautzky ,  Lance Nevala

    IPC: G11B5/31 ,  G11B5/147 ,  G11B5/00 ,  G11B13/08 ,  C30B19/08 ,  C30B29/08 ,  C30B29/02

    Abstract: Methods of forming a near field transducer (NFT), the methods including the steps of depositing plasmonic material on a substrate; laser annealing at least a portion of the deposited plasmonic material at a wavelength from 100 nm to 2.0 micrometers (μm) to induce liquid phase epitaxy (LPE) in the annealed deposited plasmonic material to form a epitaxially modified plasmonic material; and forming a NFT from at least a portion of the epitaxially modified plasmonic material are disclosed as well as other methods and devices such as those formed.

    Near-field transducer having secondary atom higher concentration at bottom of the peg
    112.
    发明授权
    Near-field transducer having secondary atom higher concentration at bottom of the peg 有权

    公开(公告)号：US11162169B2

    公开(公告)日：2021-11-02

    申请号：US16726512

    申请日：2019-12-24

    Applicant: Seagate Technology LLC

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

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

    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.

    Near field transducer having secondary atom higher concentration at bottom of the peg
    114.
    发明授权
    Near field transducer having secondary atom higher concentration at bottom of the peg 有权

    公开(公告)号：US10519540B2

    公开(公告)日：2019-12-31

    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: G11B11/105 ,  C23C14/58 ,  G11B5/31 ,  G11B5/00 ,  G11B5/60

    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.

    Near-field transducer having at least one secondary atom
    117.
    发明授权
    Near-field transducer having at least one secondary atom 有权

    公开(公告)号：US10190210B2

    公开(公告)日：2019-01-29

    申请号：US15817503

    申请日：2017-11-20

    Applicant: SEAGATE TECHNOLOGY LLC

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

    IPC: G11B11/105 ,  C23C14/58 ,  G11B5/31 ,  G11B5/00 ,  G11B5/60

    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.

    Devices including at least one multilayer adhesion layer
    118.
    发明授权
    Devices including at least one multilayer adhesion layer 有权

    公开(公告)号：US10102872B2

    公开(公告)日：2018-10-16

    申请号：US15073396

    申请日：2016-03-17

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Justin Brons ,  Tong Zhao ,  Yuhang Cheng ,  Dimitar V. Dimitrov

    IPC: G11B5/31 ,  G11B5/00

    Abstract: Devices that include a near field transducer (NFT), the NFT having at least one external surface; and at least one multilayer adhesion layer positioned on at least a portion of the at least one external surface, the multilayer adhesion layer including a first layer and a second layer, with the second layer being in contact with the portion of the at least one external surface of the NFT, the first layer including: yttrium (Y), scandium (Sc), zirconium (Zr), hafnium (Hf), silicon (Si), boron (B), tantalum (Ta), barium (Ba), aluminum (Al), titanium (Ti), niobium (Nb), calcium (Ca), beryllium (Be), strontium (Sr), magnesium (Mg), lithium (Li), or combinations thereof; and the second layer including: lanthanum (La), boron (B), lutetium (Lu), aluminum (Al), deuterium (D), cerium (Ce), uranium (U), praseodymium (Pr), yttrium (Y), silicon (Si), iridium (Ir), carbon (C), thorium (Th), scandium (Sc), titanium (Ti), vanadium (V), phosphorus (P), barium (Ba), europium (Eu), or combinations thereof.

    Near field transducers (NFTS) including a protective layer and methods of forming
    119.
    发明授权
    Near field transducers (NFTS) including a protective layer and methods of forming 有权

    公开(公告)号：US10062401B1

    公开(公告)日：2018-08-28

    申请号：US15681808

    申请日：2017-08-21

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Tong Zhao ,  Justin Brons ,  Michael Kautzky

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

    CPC classification number: G11B5/6082 ,  G11B5/187 ,  G11B5/3106 ,  G11B5/40 ,  G11B2005/0021

    Abstract: Devices having air bearing surfaces (ABS), the devices include a near field transducer (NFT) that includes a disc; a peg, the peg including gold (Au), silver (Ag), copper (Cu), aluminum (Al), rhodium (Rh), iridium (Ir), or combinations thereof; and the peg having a front surface at the air bearing surface of the device, an opposing back surface, a top surface that extends from the front surface to the back surface, two side surfaces that extend from the front surface to the back surface and a bottom surface that extends from the front surface to the back surface; and a protective layer disposed on at least one surface of the peg, the protective layer comprising an oxide of a metal that has a higher oxidation tendency than that of the material of the peg.

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