公开(公告)号：US08923101B1

公开(公告)日：2014-12-30

申请号：US14029052

申请日：2013-09-17

Applicant: Seagate Technology LLC

Inventor： Karim Tatah ,  Michael Allen Seigler

IPC: G11B11/00

CPC classification number: G11B5/455 ,  G11B5/314 ,  G11B2005/0021

Abstract: An apparatus includes a slider body, a write element, and a laser chip. The write element is disposed on the slider body and is configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. The laser chip has a laser diode with an active region configured to produce light. The laser diode adapted to inject the light to the proximate the read/write element. The laser chip additionally has a photodetector The photodetector is adapted to monitor light from the laser diode. The photodetector shares a same active region as the laser diode and the laser diode and photodetector are integrated together on the same laser chip.

Abstract translation: 一种装置包括滑块体，写入元件和激光芯片。 写入元件设置在滑块主体上，并且被配置为响应于通电电流而施加磁场以将数据写入热辅助磁记录介质的一部分上。 激光芯片具有激光二极管，其具有被配置为产生光的有源区域。 激光二极管适于将光注入到靠近读/写元件。 激光芯片还具有光电检测器。光电检测器适于监测来自激光二极管的光。 光电检测器具有与激光二极管相同的有源区域，并且激光二极管和光电检测器在相同的激光芯片上集成在一起。

公开(公告)号：US20140254337A1

公开(公告)日：2014-09-11

申请号：US13789397

申请日：2013-03-07

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Michael Allen Seigler ,  Mark William Covington

IPC: G11B13/04

CPC classification number: G11B5/314 ,  G11B2005/0021

Abstract: A device comprises a near field transducer (NFT) and electrodes configured to at least one of generate or enhance surface plasmons in the NFT by passing electrical current through a portion of the NFT.

Abstract translation: 一种装置包括近场换能器（NFT）和被配置为通过使电流通过NFT的一部分来产生或增强NFT中的表面等离子体激元中的至少一种的电极。

公开(公告)号：US20130258825A1

公开(公告)日：2013-10-03

申请号：US13903235

申请日：2013-05-28

Applicant: Seagate Technology LLC

Inventor： Michael Allen Seigler ,  Mark William Covington ,  Michael Leigh Mallary ,  Hua Zhou ,  Amit Vasant Itagi

IPC: G11B5/48

CPC classification number: G11B5/4866 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/314 ,  G11B2005/0021

Abstract: An apparatus includes a waveguide having a core layer and an end adjacent to an air bearing surface, first and second poles magnetically coupled to each other and positioned on opposite sides of the waveguide, wherein the first pole includes a first portion spaced from the waveguide and a second portion extending from the first portion toward the air bearing surface, with the second portion being structured such that an end of the second portion is closer to the core layer of the waveguide than the first portion, and a heat sink positioned adjacent to the second portion of the first pole.

Abstract translation: 一种装置包括具有芯层和邻近空气轴承表面的端部的波导，第一和第二极彼此磁耦合并且位于波导的相对侧上，其中第一极包括与波导间隔开的第一部分， 第二部分从第一部分延伸到空气支承表面，第二部分被构造成使得第二部分的端部比第一部分更靠近波导的芯层，并且与第二部分相邻的散热器 第一极的第二部分。

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：US20210366515A1

公开(公告)日：2021-11-25

申请号：US17319444

申请日：2021-05-13

Applicant: Seagate Technology LLC

Inventor： Helene Parwana Habibi ,  Simon Bance ,  Martin Liam McGarry ,  Raul Horacio Andruet ,  Martin Giles Blaber ,  Weibin Chen ,  John Charles Duda ,  Mark Anthony Gubbins ,  Erik Jon Hutchinson ,  Vivek Krishnamurthy ,  Michael Allen Seigler ,  Chen Wang

IPC: G11B11/105 ,  G11B11/24 ,  G11B5/40 ,  G11B5/187 ,  G11B5/31 ,  G11B13/08

Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.

公开(公告)号：US20210249039A1

公开(公告)日：2021-08-12

申请号：US17216017

申请日：2021-03-29

Applicant: Seagate Technology LLC

Inventor： Weibin Chen ,  Nan Zhou ,  Ruoxi Yang ,  Michael Allen Seigler

IPC: G11B5/39 ,  G11B5/48

Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. The near-field transducer extends a first distance away from the media-facing surface. A waveguide overlaps and delivers light to the near-field transducer. Two subwavelength focusing mirrors are at an end of the waveguide proximate the media-facing surface. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface and a liner that covers an edge of the mirror.

公开(公告)号：US10811038B1

公开(公告)日：2020-10-20

申请号：US16597935

申请日：2019-10-10

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Michael Allen Seigler

IPC: G11B5/31 ,  G11B5/33 ,  G11B5/115 ,  G11B5/40 ,  G11B5/187 ,  G11B5/127 ,  G11B5/00

Abstract: A heat-assisted magnetic recording head includes a write pole tip that extends to a media-facing surface and a heat sink that is thermally coupled to a side of the write pole tip. A surface plasmonic plate is in contact with a side of the heat sink that faces away from the write pole and is recessed from, the media-facing surface. A nanorod extends from a surface of the surface plasmonic plate and towards the media-facing surface.

公开(公告)号：US10699740B2

公开(公告)日：2020-06-30

申请号：US15357333

申请日：2016-11-21

Applicant: SEAGATE TECHNOLOGY LLC

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

IPC: G11B11/00 ,  G11B5/40 ,  G11B13/08 ,  G11B5/31 ,  G11B7/1387 ,  G11B7/24059 ,  G11B5/60 ,  C23C14/58 ,  C22C5/02 ,  C22C5/06 ,  C22C9/02 ,  C22C9/08 ,  C22C11/04 ,  C22C13/00 ,  C22C18/02 ,  C22C19/03 ,  C22C20/00 ,  C22C21/00 ,  C22C21/02 ,  C22C21/10 ,  C22C22/00 ,  C22C27/00 ,  C22C27/02 ,  C22C27/06 ,  C22C38/06 ,  G11B5/48 ,  C01F7/00 ,  C01G5/00 ,  B32B15/01 ,  C22C5/04 ,  C22C5/10 ,  C22C9/00 ,  C22C9/04 ,  C22C9/05 ,  C22C9/06 ,  C22C9/10 ,  C22C19/07 ,  C22C21/06 ,  C22C24/00 ,  C22C28/00 ,  C22C30/02 ,  G11B5/00

Abstract: A device including a near field transducer, the near field transducer including gold (Au), silver (Ag), copper (Cu), or aluminum (Al), and at least two other secondary atoms, the at least two other secondary atoms selected from: boron (B), bismuth (Bi), indium (In), sulfur (S), silicon (Si), tin (Sn), manganese (Mn), tellurium (Te), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), barium (Ba), chlorine (Cl), cesium (Cs), dysprosium (Dy), europium (Eu), fluorine (F), germanium (Ge), hydrogen (H), iodine (I), rubidium (Rb), selenium (Se), terbium (Tb), nitrogen (N), oxygen (O), carbon (C), antimony (Sb), gadolinium (Gd), samarium (Sm), thallium (Tl), cadmium (Cd), neodymium (Nd), phosphorus (P), lead (Pb), hafnium (Hf), niobium (Nb), erbium (Er), zinc (Zn), magnesium (Mg), palladium (Pd), vanadium (V), zinc (Zn), chromium (Cr), iron (Fe), lithium (Li), nickel (Ni), platinum (Pt), sodium (Na), strontium (Sr), calcium (Ca), yttrium (Y), thorium (Th), beryllium (Be), thulium (Tm), erbium (Er), ytterbium (Yb), promethium (Pm), neodymium (Nd cobalt (Co), cerium (Ce), lanthanum (La), praseodymium (Pr), or combinations thereof.

公开(公告)号：US10510365B2

公开(公告)日：2019-12-17

申请号：US16353702

申请日：2019-03-14

Applicant: Seagate Technology LLC

Inventor： Martin Giles Blaber ,  Michael Allen Seigler ,  Michael Christopher Kautzky

IPC: G11B5/31 ,  G11B5/48 ,  G11B5/187 ,  G11B5/60 ,  G11B5/00

Abstract: A recording head includes a near-field transducer proximate a media-facing surface. The near-field transducer comprises an aperture portion surrounded by walls of plasmonic material, the walls oriented normal to the media-facing surface. A notch protrudes within the aperture. The notch comprises at least one of Rh and Ir. A write pole is proximate the near-field transducer. The write pole has a back surface facing away from the media-facing surface and an aperture-facing surface proximate the aperture.

公开(公告)号：US10236020B2

公开(公告)日：2019-03-19

申请号：US15980293

申请日：2018-05-15

Applicant: Seagate Technology LLC

Inventor： Martin Giles Blaber ,  Michael Allen Seigler ,  Michael Christopher Kautzky

IPC: G11B5/00 ,  G11B5/31 ,  G11B5/48 ,  G11B5/187 ,  G11B5/60

Abstract: A recording head includes a near-field transducer proximate a media-facing surface. The near-field transducer comprises an aperture portion surrounded by walls of plasmonic material, the walls oriented normal to the media-facing surface. A notch protrudes within the aperture. The notch comprises at least one of Rh and Ir. A write pole is proximate the near-field transducer. The write pole has a back surface facing away from the media-facing surface and an aperture-facing surface proximate the aperture.