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公开(公告)号：US20130070576A1
公开(公告)日：2013-03-21
申请号：US13678017
申请日：2012-11-15
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Jie Zou , Kaizhong Gao , William Albert Challener , Mark Henry Ostrowski , Venkateswara Rao Inturi , Tong Zhao , Michael Christopher Kautzky
IPC: G11B13/04
CPC classification number: G11B13/08 , G11B5/3133 , G11B5/314 , G11B5/6088 , G11B13/04 , G11B2005/0021 , Y10T428/11
Abstract: An apparatus includes a near field transducer positioned adjacent to an air bearing surface, a first magnetic pole, a heat sink positioned between the first magnetic pole and the near field transducer, and a diffusion barrier positioned between the near field transducer and the first magnetic pole. The diffusion barrier can be positioned adjacent to the magnetic pole or the near field transducer.
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公开(公告)号：US20130026883A1
公开(公告)日：2013-01-31
申请号：US13633004
申请日：2012-10-01
Applicant: Seagate Technology LLC
Inventor： Michael Christopher Kautzky , Charles Everett Hawkinson , Daniel Paul Burbank , John Stuart Wright
IPC: H01L41/22
CPC classification number: H02H3/08 , G11B5/4826 , G11B5/4873 , G11B5/6005 , H01L41/1132 , H01L41/257 , H01L41/338 , Y10T29/42
Abstract: A system for poling piezoelectric devices comprises a plurality of thin-film components, a plurality of piezoelectric devices, a poling pad for poling the piezoelectric devices, a plurality of traces, and a plurality of current-limiting elements. The thin-film components are separated by dice lanes to form an array, and the piezoelectric devices are formed on the thin-film components. The traces connect the piezoelectric devices across the dice lanes in parallel to the poling pad. Each current-limiting element is connected in series with one of the piezoelectric devices, in order to limit current to individual piezoelectric devices that experience current-related failure.
Abstract translation: 用于极化压电装置的系统包括多个薄膜部件，多个压电装置，用于极化压电装置的极化垫，多个迹线和多个限流元件。 薄膜部件通过骰子线分隔开形成阵列，并且压电元件形成在薄膜部件上。 迹线将压电元件跨过骰子通道平行于极化垫。 每个限流元件与压电器件之一串联连接，以便将电流限制到经历电流相关故障的各个压电器件。
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公开(公告)号：US12057147B2
公开(公告)日：2024-08-06
申请号：US17511741
申请日：2021-10-27
Applicant: Seagate Technology LLC
Inventor： Tong Zhao , Li Wan , Michael Christopher Kautzky
IPC: G11B5/31 , B81C1/00 , B82B1/00 , H01F10/30 , H01L21/3065 , H01L21/67 , B82Y10/00 , G11B5/00 , G11B11/24 , H01L21/3213
CPC classification number: G11B5/3163 , B81C1/00111 , B82B1/003 , G11B5/3133 , H01F10/30 , H01L21/3065 , H01L21/30655 , H01L21/67069 , B81C2201/0132 , B81C2201/0143 , B82Y10/00 , G11B2005/0021 , G11B11/24 , H01L21/32136
Abstract: A method of forming a thin film structure involves performing one or more repetitions to form a template on a wafer. The repetitions include: depositing a layer of a template material to a first thickness T1; and ion beam milling the layer of the template material to remove thickness T2, where T2
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公开(公告)号：US20190214041A1
公开(公告)日：2019-07-11
申请号：US16353702
申请日：2019-03-14
Applicant: Seagate Technology LLC
CPC classification number: G11B5/314 , G11B5/187 , G11B5/1871 , G11B5/3116 , G11B5/4866 , G11B5/6088 , G11B2005/0021
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.
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公开(公告)号：US20180261240A1
公开(公告)日：2018-09-13
申请号：US15980293
申请日：2018-05-15
Applicant: Seagate Technology LLC
CPC classification number: G11B5/314 , G11B5/187 , G11B5/1871 , G11B5/3116 , G11B5/4866 , G11B5/6088 , G11B2005/0021
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.
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Patent Agency Ranking
公开(公告)号：US09972346B2
公开(公告)日：2018-05-15
申请号：US15443188
申请日：2017-02-27
Applicant: Seagate Technology LLC
CPC classification number: G11B5/314 , G11B5/187 , G11B5/1871 , G11B5/3116 , G11B5/4866 , G11B5/6088 , G11B2005/0021
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.
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公开(公告)号：US20170249958A1
公开(公告)日：2017-08-31
申请号：US15443188
申请日：2017-02-27
Applicant: Seagate Technology LLC
CPC classification number: G11B5/314 , G11B5/187 , G11B5/1871 , G11B5/3116 , G11B5/4866 , G11B5/6088 , G11B2005/0021
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.
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公开(公告)号：US09728209B2
公开(公告)日：2017-08-08
申请号：US15163035
申请日：2016-05-24
Applicant: Seagate Technology LLC
Inventor： Weibin Chen , Martin Blaber , Tong Zhao , Michael Christopher Kautzky , John Charles Duda
CPC classification number: G11B5/314 , G11B5/3116 , G11B5/3133 , G11B2005/0021
Abstract: A near-field transducer includes first and second stacked base portions having a common outline shape. The second base portion is proximate alight delivery structure. A peg extends from the first base portion towards a media-facing surface. The peg includes a material that is more thermally robust than a plasmonic material of the base portion. The peg has a peg thickness that is less than a thickness of the first base portion. The first base portion has a first recess proximate the peg. The first recess separates the first base portion from the media-facing surface and exposes at least a top side of the peg.
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公开(公告)号：US09251820B2
公开(公告)日：2016-02-02
申请号：US14720162
申请日：2015-05-22
Applicant: Seagate Technology LLC
Inventor： Tong Zhao , John C. Duda , Michael Christopher Kautzky
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.
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公开(公告)号：US09129626B2
公开(公告)日：2015-09-08
申请号：US14061934
申请日：2013-10-24
Applicant: Seagate Technology LLC
Inventor： Michael Christopher Kautzky , James Gary Wessel , Mark Ostrowski , Tae-Woo Lee
CPC classification number: G11B5/4866 , G11B5/314 , G11B5/6088 , G11B7/124 , G11B7/126 , G11B13/08 , G11B2005/0021
Abstract: Embodiments are directed to an apparatus having an air-bearing surface that is configured to interact with magnetic medium. The apparatus includes a waveguide and a plasmonic near-field transducer positioned at or near the air-bearing surface. The plasmonic near-field transducer is operatively coupled to the waveguide. The plasmonic near-field transducer includes an enlarged region and a peg region. The peg region extends from the enlarged region towards the air-bearing surface. The peg region has at least a portion of a periphery of its cross-sectional shape include curvature or at least one substantially obtuse angle.
Abstract translation: 实施例涉及具有被配置为与磁介质相互作用的空气轴承表面的装置。 该装置包括位于空气承载表面处或附近的波导和等离子体近场换能器。 等离子体近场换能器可操作地耦合到波导。 等离子体激元近场换能器包括放大区域和钉区域。 销钉区域从扩大区域向空气轴承表面延伸。 钉区域具有其横截面形状的至少一部分周边包括曲率或至少一个基本钝角。
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