公开(公告)号：US20150117170A1

公开(公告)日：2015-04-30

申请号：US14396486

申请日：2013-04-25

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Tong Zhao ,  Meng Zhu ,  Xiaoyue Huang ,  Michael C. Kautzky

IPC: G11B5/702

CPC classification number: G11B13/08 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B5/702 ,  G11B7/1387 ,  G11B2005/0021

Abstract: A device including a near field transducer (NFT); a write pole; at least one dielectric material positioned between the NFT and the write pole; and an adhesion layer positioned between the NFT and the at least one dielectric material.

Abstract translation: 一种包括近场换能器（NFT）的装置; 写柱 位于NFT和写极之间的至少一个电介质材料; 以及位于所述NFT和所述至少一种介电材料之间的粘合层。

公开(公告)号：US08934198B2

公开(公告)日：2015-01-13

申请号：US14062651

申请日：2013-10-24

Applicant: Seagate Technology LLC

Inventor： Jie Zou ,  Kaizhong Gao ,  William Albert Challener ,  Mark Henry Ostrowski ,  Vankateswara Rao Inturi ,  Tong Zhao ,  Michael Christopher Kautzky

IPC: G11B5/02

CPC classification number: G11B33/144 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/314 ,  G11B13/08 ,  G11B2005/0021

Abstract: An apparatus including a near field transducer positioned adjacent to an air bearing surface, the near field transducer comprising silver (Ag) and at least one other element or compound; a first magnetic pole; and a heat sink positioned between the first magnetic pole and the near field transducer, wherein the heat sink includes: rhodium (Rh) or an alloy thereof; ruthenium (Ru) or an alloy thereof; titanium (Ti) or an alloy thereof; tantalum (Ta) or an alloy thereof; tungsten (W) or an alloy thereof; borides; nitrides; transition metal oxides; or palladium (Pd) or an alloy thereof.

Abstract translation: 一种包括靠近空气轴承表面定位的近场换能器的装置，所述近场换能器包括银（Ag）和至少一种其它元件或化合物; 第一个磁极; 以及位于所述第一磁极和所述近场换能器之间的散热器，其中所述散热器包括：铑（Rh）或其合金; 钌（Ru）或其合金; 钛（Ti）或其合金; 钽（Ta）或其合金; 钨（W）或其合金; 硼化物 氮化物 过渡金属氧化物; 或钯（Pd）或其合金。

公开(公告)号：US20140376344A1

公开(公告)日：2014-12-25

申请号：US14286279

申请日：2014-05-23

Applicant: Seagate Technology LLC

Inventor： Tong Zhao ,  John C. Duda ,  Michael Christopher Kautzky

IPC: G11B5/48 ,  G11B5/127

CPC classification number: G11B5/4866 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/1871 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B13/08 ,  G11B2005/0021 ,  Y10T29/49025 ,  Y10T29/49032

Abstract: Apparatuses, systems, and methods are disclosed related to heat assisted magnetic recording. According to one embodiment, an apparatus that includes a heat sink region and a near field transducer region is disclosed. The near field transducer region is thermally coupled to the heat sink region. At least one of the heat sink region and the near field transducer region includes both an inner core and an outer shell. The inner core can be comprised of a non-plasmonic material and the outer shell can be comprised of a plasmonic material. In further embodiments, the inner core is comprised of a material having a relatively higher electron-phonon coupling constant and the outer shell is comprised of a material having a relatively lower electron-phonon coupling constant.

Abstract translation: 公开了与热辅助磁记录相关的装置，系统和方法。 根据一个实施例，公开了一种包括散热片区域和近场换能器区域的装置。 近场换能器区域热耦合到散热片区域。 散热片区域和近场传感器区域中的至少一个包括内核和外壳两者。 内核可以由非等离子体激元材料组成，外壳可以由等离子体激元材料构成。 在另外的实施例中，内芯由具有相对较高的电子 - 声子耦合常数的材料构成，并且外壳由具有较低电子 - 声子耦合常数的材料组成。

公开(公告)号：US20130235707A1

公开(公告)日：2013-09-12

申请号：US13867179

申请日：2013-04-22

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Tong Zhao ,  Michael Christopher Kautzky ,  William Albert Challener ,  Michael Allen Seigler

IPC: G11B13/04

CPC classification number: G11B13/04 ,  B82Y10/00 ,  G02B6/102 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T428/11

Abstract: A near field transducer includes gold and at least one dopant. The dopant can include at least one of: Cu, Rh, Ru, Ag, Ta, Cr, Al, Zr, V, Pd, Ir, Co, W, Ti, Mg, Fe, or Mo. The dopant concentration may be in a range from 0.5% and 30%. The dopant can be a nanoparticle oxide of V, Zr, Mg, Ca, Al, Ti, Si, Ce, Y, Ta, W, or Th, or a nitride of Ta, Al, Ti, Si, In, Fe, Zr, Cu, W or B.

Abstract translation: 近场换能器包括金和至少一种掺杂剂。 掺杂剂可以包括Cu，Rh，Ru，Ag，Ta，Cr，Al，Zr，V，Pd，Ir，Co，W，Ti，Mg，Fe或Mo中的至少一种。 范围从0.5％和30％。 掺杂剂可以是V，Zr，Mg，Ca，Al，Ti，Si，Ce，Y，Ta，W或Th的纳米氧化物，或Ta，Al，Ti，Si，In，Fe，Zr ，Cu，W或B.

公开(公告)号：US11875826B1

公开(公告)日：2024-01-16

申请号：US18062397

申请日：2022-12-06

Applicant: Seagate Technology LLC

Inventor： Michael C Kautzky ,  Venkateswara R Inturi ,  XiaoYue Phillip Huang ,  Lance Edward Nevala ,  Tong Zhao

IPC: G11B5/40 ,  G11B5/31 ,  G11B13/08 ,  G11B5/60 ,  G11B5/00

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

Abstract: A heat-assisted magnetic recording head includes a first feature, a second feature, and a bilayer adhesion structure. The first feature includes a first primary metal. The second feature includes an oxide region, and a mixed metal oxide adhesion layer that is adhered to the oxide region and provided on a surface of the second feature. The bilayer adhesion structure includes the mixed metal oxide adhesion layer of the second feature, and a metal adhesion layer. The metal adhesion layer is disposed between and adhered to the first feature and the mixed metal oxide adhesion layer of the second feature. The metal adhesion layer includes a second primary metal that is different than the first primary metal.

公开(公告)号：US11587581B1

公开(公告)日：2023-02-21

申请号：US16263308

申请日：2019-01-31

Applicant: Seagate Technology LLC

Inventor： Mark Gubbins ,  Roger L. Hipwell, Jr. ,  Marcus B. Mooney ,  Mark Ostrowski ,  Tong Zhao ,  Michael J. Hardy ,  Michael Christopher Kautzky ,  Neil Zuckerman ,  Declan Macken ,  Francis A. McGinnity

IPC: G11B5/127 ,  G11B3/10 ,  G11B5/31 ,  G11B11/105 ,  G11B5/00

Abstract: A near-field transducer or heat sink is formed via a first process. The near-field transducer or heat sink is transfer-printed to a read/write head via a second process.

公开(公告)号：US11423928B1

公开(公告)日：2022-08-23

申请号：US16252167

申请日：2019-01-18

Applicant: Seagate Technology LLC

Inventor： Michael Christopher Kautzky ,  Tong Zhao ,  Li Wan ,  Xiaolu Kou

IPC: G11B5/31 ,  G11B5/105 ,  G11B5/84 ,  G11B5/127 ,  G11B7/124 ,  C30B25/04 ,  H01L33/00 ,  G11B5/60 ,  G11B5/00

Abstract: A method includes forming a single-crystal-like metal layer on a metal seed layer, the metal seed layer formed on a sacrificial wafer. An anchor layer is formed on the single-crystal-like metal layer. The single-crystal-like metal layer is separated from the sacrificial wafer via the anchor layer. The single-crystal-like metal layer is transported via the anchor layer to a target substrate having one or more recording head subassemblies. The single-crystal-like metal layer is joined with the recording head, the single-crystal-like metal layer being integrated with the recording head as a near-field transducer.

公开(公告)号：US11183215B1

公开(公告)日：2021-11-23

申请号：US16524551

申请日：2019-07-29

Applicant: Seagate Technology LLC

Inventor： Tong Zhao ,  Li Wan ,  Michael Christopher Kautzky

IPC: G11B5/31 ,  G11B5/73 ,  H01F10/30 ,  G11B5/66 ,  B32B7/022 ,  B82B1/00 ,  B82Y10/00

Abstract: A thin film structure (e.g., a near-field transducer), includes a first surface parallel to a substrate on which the thin film structure is deposited and two other surfaces orthogonal to the first surface. The first surface and the two other surfaces have respective first, second, and third selected plane orientations with respective first, second, and third atomic packing factors. The first, second, and third selected plane orientations are selected to maximize an average of the first, second, and third atomic packing factors.

公开(公告)号：US20210201942A1

公开(公告)日：2021-07-01

申请号：US16731526

申请日：2019-12-31

Applicant: Seagate Technology LLC

Inventor： Tong Zhao ,  Martin Blaber ,  Li Wan

IPC: G11B5/39 ,  C22C5/04 ,  G11B5/48

Abstract: Heat assisted magnetic recording (HAMR) devices that includes a near field transducer, the near field transducer including alloys of a first element selected from: platinum (Pt), palladium (Pd), rhodium (Rh), iridium (Ir), ruthenium (Ru), and osmium (Os); and a second element selected from; hafnium (Hf), niobium (Nb), tantalum (Ta), titanium (Ti), vanadium (V), and zirconium (Zr).

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.