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公开(公告)号：US11538496B2
公开(公告)日：2022-12-27
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
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.
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公开(公告)号：US11443764B1
公开(公告)日：2022-09-13
申请号：US16291491
申请日：2019-03-04
Applicant: Seagate Technology LLC
Inventor： Choon How Gan , Mark Anthony Gubbins , Beverley Rutherford McConnell , Martin Peter McCurry , Michael James Hardy , Andres David Barbosa Neira , Fadi El Hallak , Anil Kumar Puri
Abstract: An apparatus includes a slider configured for heat-assisted magnetic recording. The slider includes an input coupler configured to receive light excited by a light source. The slider includes a waveguide core tapering along a light propagation direction from a first cross-sectional width to a second cross-sectional width, the waveguide configured to provide a surface plasmon-enhanced near-field radiation pattern proximate an output end in response to the received light. One or more cladding layers surround the waveguide core. At least one strip of plasmonic material is disposed between the waveguide core and at least one of the one or more cladding layers.
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公开(公告)号：US10692525B2
公开(公告)日：2020-06-23
申请号：US16136389
申请日：2018-09-20
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , Mark Anthony Gubbins , Kelly Elizabeth Callan , Reyad Mehfuz , Marcus B. Mooney , Fadi El Hallak , Paula Frances McElhinney
IPC: G11B7/126 , G11B11/105 , G11B5/48 , G11B5/00 , G11B7/1263 , G11B7/1267 , G11B5/60
Abstract: An apparatus includes a substrate. A laser is formed on a non-self supporting structure and bonded to the substrate. A waveguide is deposited proximate the laser. The waveguide is configured to communicate light from the laser to a near-field transducer that directs energy resulting from plasmonic excitation to a recording medium. A light detector is configured to detect an amount of light. At least one laser heater is disposed proximate the laser. A controller is configured to control current supplied to the at least one heater based on the detected amount of light.
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公开(公告)号：US20200098391A1
公开(公告)日：2020-03-26
申请号：US16136389
申请日：2018-09-20
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , Mark Anthony Gubbins , Kelly Elizabeth Callan , Reyad Mehfuz , Marcus B. Mooney , Fadi El Hallak , Paula Frances McElhinney
Abstract: An apparatus includes a substrate. A laser is formed on a non-self supporting structure and bonded to the substrate. A waveguide is deposited proximate the laser. The waveguide is configured to communicate light from the laser to a near-field transducer that directs energy resulting from plasmonic excitation to a recording medium. A light detector is configured to detect an amount of light. At least one laser heater is disposed proximate the laser. A controller is configured to control current supplied to the at least one heater based on the detected amount of light.
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公开(公告)号：US09960570B1
公开(公告)日：2018-05-01
申请号：US15601024
申请日：2017-05-22
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , Mark Anthony Gubbins , Michael James Hardy , Kelly Elizabeth Hamilton
CPC classification number: H01S5/14 , G11B5/4866 , G11B5/6088 , G11B7/126 , G11B2005/0021 , H01S3/08045 , H01S3/0805 , H01S3/08068
Abstract: A slider includes a slot waveguide configured to receive energy from an input surface. The slot waveguide has first and second high-index regions surrounding a middle region that extends along a light propagation direction. The middle region has a refractive index less than that of the first and second high index regions. A near-field transducer is at an output portion of the middle region at media-facing surface. The near-field transducer has first and second plates parallel to the media-facing surface with a gap therebetween. An active laser region has a front facet optically coupled to the input surface of the slider. A reflective back facet of the laser and the near-field transducer define a single optical resonator.
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Patent Agency Ranking
公开(公告)号：US20160180868A1
公开(公告)日：2016-06-23
申请号：US14975214
申请日：2015-12-18
Applicant: Seagate Technology LLC
Inventor： Mark Anthony Gubbins , Vijayaharan A. Venugopal , Marcus Benedict Mooney , Adam Andrzej Lapicki , Muhammad Asif Bashir , Prim Gangmei
IPC: G11B5/31
CPC classification number: G11B5/3116 , G11B5/3143 , G11B5/3906 , G11B5/3912
Abstract: A write pole structure includes a write pole and a trailing shield wherein the write pole includes a high magnetic moment (HMM) material layer on a surface of the write pole facing the trailing shield, wherein the HMM material layer includes a laminated layer including a rare earth material layer and a transition metal layer.
Abstract translation: 写柱结构包括写极和后屏蔽，其中所述写极包括面对所述后屏蔽的所述写磁极的表面上的高磁矩（HMM）材料层，其中所述HMM材料层包括包含稀有 土壤材料层和过渡金属层。
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公开(公告)号：US20150103442A1
公开(公告)日：2015-04-16
申请号：US14575288
申请日：2014-12-18
Applicant: Seagate Technology LLC
Inventor： Mark Anthony Gubbins , Todd Michael Lammers
CPC classification number: G11B5/09 , G11B5/10 , G11B5/1278 , G11B5/3133 , G11B5/4833 , G11B5/4853 , G11B5/6005 , G11B5/6082
Abstract: An apparatus and associated method generally relate to data writing and more specifically to writing data to a rotating media. An embodiment of such an apparatus comprises a slider body, a transducer and a write driver. The transducer comprises a writer. The write driver is integrated on the slider body, and directly connected to the writer.
Abstract translation: 装置和相关方法通常涉及数据写入，更具体地涉及将数据写入旋转介质。 这种装置的实施例包括滑块体，换能器和写入驱动器。 换能器包括一个写入器。 写驱动器集成在滑块体上，并直接连接到写入器。
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公开(公告)号：US20140168816A1
公开(公告)日：2014-06-19
申请号：US13718863
申请日：2012-12-18
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Mark Anthony Gubbins , Marcus Benedict Mooney
IPC: G11B5/31
CPC classification number: G11B5/3153 , B81C1/00357 , B81C1/00476 , B81C1/0088 , B81C3/001 , B81C99/008 , B81C2201/0194 , C09K13/08 , C23F1/02 , C23F1/28 , C23F1/30 , C30B25/04 , G03F7/0002 , G11B5/3163 , G11B5/3173 , Y10T428/11 , Y10T428/115 , Y10T428/1157 , Y10T428/1171 , Y10T428/1186 , Y10T428/1193
Abstract: Various methods for attaching a crystalline write pole onto an amorphous substrate and the resulting structures are described in detail herein. Further, the resulting structure may have a magnetic moment exceeding 2.4 Tesla. Still further, methods for depositing an epitaxial crystalline write pole on a crystalline seed or template material to ensure that the phase of the write pole is consistent with the high moment phase of the template material are also described in detail herein.
Abstract translation: 本文详细描述了用于将晶体写极连接到非晶衬底上的各种方法以及所得到的结构。 此外，所得到的结构可能具有超过2.4特斯拉的磁矩。 此外，本文还详细描述了在结晶晶种或模板材料上沉积外延晶体写极的方法，以确保写极的相位与模板材料的高时间相一致。
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公开(公告)号：US11011201B2
公开(公告)日：2021-05-18
申请号：US16520629
申请日：2019-07-24
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
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.
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10.发明授权公开(公告)号：US10783917B1
公开(公告)日：2020-09-22
申请号：US16268708
申请日：2019-02-06
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , Mark Anthony Gubbins , Paula Frances McElhinney , Roger L. Hipwell, Jr. , John Wolf
IPC: G11B11/00 , G11B11/105 , G11B5/00
Abstract: A recording head includes a substrate, a read transducer, a waveguide core, and a near-field transducer at an end of the waveguide core proximate a media-facing surface. The recording head includes a magnetic write pole and coil. A laser diode unit with one or more non-self-supporting layers of crystalline material region is transfer printed between layers of the recording head.
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