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    NEAR FIELD TRANSDUCERS (NFTS) AND METHODS OF FORMING NFTS
    4.
    发明申请
    NEAR FIELD TRANSDUCERS (NFTS) AND METHODS OF FORMING NFTS 审中-公开

    公开(公告)号：US20200224307A1

    公开(公告)日：2020-07-16

    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

    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
    5.
    发明申请
    DEVICES INCLUDING AT LEAST ONE MULTILAYER ADHESION LAYER 审中-公开

    公开(公告)号：US20190051319A1

    公开(公告)日：2019-02-14

    申请号：US16160661

    申请日：2018-10-15

    Applicant: SEAGATE TECHNOLOGY LLC

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

    IPC: G11B5/31 ,  G11B5/00

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

    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.

    MULTIPIECE NEAR FIELD TRANSDUCERS (NFTS)
    7.
    发明申请
    MULTIPIECE NEAR FIELD TRANSDUCERS (NFTS) 审中-公开

    公开(公告)号：US20170316793A1

    公开(公告)日：2017-11-02

    申请号：US15613393

    申请日：2017-06-05

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Martin Blaber ,  Tong Zhao ,  Justin Brons ,  Michael Kautzky

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

    CPC classification number: G11B5/314 ,  G11B5/3163 ,  G11B5/6082 ,  G11B5/6088 ,  G11B2005/0021

    Abstract: Devices having air bearing surfaces (ABS), the devices including 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 at least one of a portion of the peg, a portion of the disc, or a portion of both the peg and the disc include a multilayer structure including at least two layers including at least one layer of a first material and at least one layer of a second material, wherein the first material and the second material are not the same and wherein the first and the second materials independently include aluminum (Al), antimony (Sb), bismuth (Bi), boron (B), barium (Ba), calcium (Ca), cerium (Ce), chromium (Cr), cobalt (Co), copper (Cu), erbium (Er), gadolinium (Gd), gallium (Ga), germanium (Ge), gold (Au), hafnium (Hf), indium (In), iridium (Ir), iron (Fe), lanthanum (La), magnesium (Mg), manganese (Mn), molybdenum (Mo), nickel (Ni), niobium (Nb), osmium (Os), palladium (Pd), platinum (Pt), rhenium (Re), rhodium (Rh), ruthenium (Ru), scandium (Sc), silicon (Si), silver (Ag), strontium (Sr), tantalum (Ta), thorium (Th), tin (Sn), titanium (Ti), vanadium (V), tungsten (W), ytterbium (Yb), yttrium (Y), zirconium (Zr), or combinations thereof.

    Near field transducers (NFTs) including a protective layer and methods of forming
    8.
    发明授权
    Near field transducers (NFTs) including a protective layer and methods of forming 有权

    公开(公告)号：US09741381B1

    公开(公告)日：2017-08-22

    申请号：US15166774

    申请日：2016-05-27

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Tong Zhao ,  Justin Brons ,  Michael Kautzky

    IPC: G11B11/00 ,  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.

    NEAR FIELD TRANSDUCERS (NFTS) AND METHODS OF FORMING NFTS
    9.
    发明申请
    NEAR FIELD TRANSDUCERS (NFTS) AND METHODS OF FORMING NFTS 审中-公开

    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.

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