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公开(公告)号：US10127935B2
公开(公告)日：2018-11-13
申请号：US15784479
申请日：2017-10-16
Applicant: Seagate Technology LLC
Inventor： Roberto Fernandez Garcia , Andres David Barbosa Neira , Michael James Hardy , Mark Anthony Gubbins
Abstract: An apparatus includes a slider configured for heat-assisted magnetic recording. An input coupler of the slider is configured to-receive light produced by a light source. A waveguide of the slider comprises a waveguide core tapering from a first portion having a first cross sectional width to a second portion having a second cross sectional width along the light propagation direction. The second cross sectional width being smaller than the first cross sectional width, and the second portion having an output end. The waveguide includes at least one cladding layer comprising a metallic material. The at least one cladding layer surrounds at least the core. The at least one cladding layer is configured to sink heat away from the waveguide core. The waveguide is configured to provide a surface plasmon-enhanced near-field radiation pattern proximate the output end in response to the light received at the transducer region.
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公开(公告)号：US10115423B1
公开(公告)日：2018-10-30
申请号：US15723410
申请日：2017-10-03
Applicant: Seagate Technology LLC
Inventor： Mark Anthony Gubbins , Choon How Gan , Roberto Fernandez Garcia , Michael James Hardy , Andres David Barbosa Neira
Abstract: A near-field transducer has an enlarged portion with a peg extending towards a media-facing surface. Two reflectors are located co-planar with near-field transducer and located on either side of the near-field transducer in a crosstrack direction. The two reflectors are separated by a gap proximate the peg of the near-field transducer. The two reflectors each include a first edge at the media facing surface and a second edge at an acute angle to the media-facing surface. The second edge faces the near-field transducer. The two reflectors concentrate the light on the peg of the near-field transducer.
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公开(公告)号：US10032467B2
公开(公告)日：2018-07-24
申请号：US15827230
申请日：2017-11-30
Applicant: Seagate Technology LLC
Inventor： Mark Anthony Gubbins , Robert William Lamberton , Robert Edward Weinstein , James Joseph Touchton
CPC classification number: G11B5/02 , B82Y10/00 , G11B5/3133 , G11B5/746 , G11B5/82 , G11B20/10009 , G11B20/10222 , G11B20/1024 , G11B20/10388 , G11B20/10425 , G11B2005/0005 , G11B2220/252
Abstract: The presently disclosed technology teaches integrating disc drive electronics into a transducer head. Decreased electrical transit times and data processing times can be achieved by placing the electronics on or within the transducer head because electrical connections may be made physically shorter than in conventional systems. The electronics may include one or more of a control system circuit, a write driver, and/or a data buffer. The control system circuit generates a modified clock signal that has a fixed relation to phase and frequency of a bit-detected reference signal that corresponds to positions of patterned bits on the disc. The write driver writes outgoing data bits received from an external connection to off-head electronics directly to the writer synchronized with the modified clock signal. The data buffer stores and converts digital data bits sent from the off-head electronics to an analog signal that is synchronized with the modified clock signal.
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公开(公告)号：US09773512B2
公开(公告)日：2017-09-26
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
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.
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公开(公告)号：US20160293189A1
公开(公告)日：2016-10-06
申请号：US15085162
申请日：2016-03-30
Applicant: Seagate Technology LLC
Inventor： Ruoxi Yang , Mark Anthony Gubbins , Aidan Goggin , Michael J. Hardy , Roberto Fernandez Garcia , Choon How Gan
CPC classification number: G11B5/4866 , G02B6/1223 , G02B6/1228 , G02B6/126 , G11B5/314 , G11B5/6088 , G11B2005/0021
Abstract: A dual-slot waveguide receives energy from a coupling waveguide. The dual-slot waveguide includes first and second light propagating regions of low-index material located side-by-side in a direction normal to a light propagation direction. Inner sides of the first and second light propagating regions are separated by a first region of a high-index material. Second and third regions of the high-index material surround outer sides of the first and second light propagating regions. A near-field transducer receives portions of the energy from the first and second light propagating regions.
Abstract translation: 双槽波导从耦合波导接收能量。 双槽波导包括在垂直于光传播方向的方向上并排设置的低折射率材料的第一和第二光传播区域。 第一和第二光传播区域的内侧被高折射率材料的第一区域隔开。 高折射率材料的第二和第三区域围绕第一和第二光传播区域的外侧。 近场换能器接收来自第一和第二光传播区域的能量的部分。
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Patent Agency Ranking
公开(公告)号：US09349388B1
公开(公告)日：2016-05-24
申请号：US14633830
申请日：2015-02-27
Applicant: Seagate Technology LLC
Inventor： Muhammad Asif Bashir , JianHua Xue , Beverley Rutherford McConnell , Shengzhou Liao , Wei Tian , Prim Gangmei , Swaraj Basu , Mark Anthony Gubbins
CPC classification number: G11B5/315 , G11B5/10 , G11B5/3116
Abstract: A data storage device employing a data writer may configure the data writer with at least a write pole that is separated from a front shield on an air bearing surface. The front shield can be arranged to continuously extend from the air bearing surface a first throat height distal the write pole and a second throat height proximal the write pole with the first and second throat heights being different.
Abstract translation: 使用数据写入器的数据存储装置可以将数据写入器配置为至少与空气轴承表面上的前屏蔽分开的写入极。 前挡板可以布置成从空气轴承表面连续地延伸远离写柱的第一喉部高度和靠近写柱的第二喉部高度，第一和第二喉部高度不同。
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公开(公告)号：US20150332710A1
公开(公告)日：2015-11-19
申请号：US14811303
申请日：2015-07-28
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：US12094491B2
公开(公告)日：2024-09-17
申请号：US18081527
申请日：2022-12-14
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
CPC classification number: G11B11/10536 , G11B5/187 , G11B5/3106 , G11B5/3116 , G11B5/3133 , G11B5/3136 , G11B5/314 , G11B5/40 , G11B11/24 , G11B13/08 , G11B2005/0021
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：US20230110250A1
公开(公告)日：2023-04-13
申请号：US18081527
申请日：2022-12-14
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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20.发明授权公开(公告)号：US11120830B1
公开(公告)日：2021-09-14
申请号：US16943115
申请日：2020-07-30
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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