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公开(公告)号：US09978405B1
公开(公告)日：2018-05-22
申请号：US15444518
申请日：2017-02-28
Applicant: Seagate Technology LLC
Inventor： Zoran Jandric , Vasudevan Ramaswamy , Erik J. Hutchinson , John Charles Duda
IPC: G11B11/00 , G11B5/31 , G11B5/00 , G11B5/60 , G11B7/1267 , G11B7/1263 , G11B7/127
CPC classification number: G11B5/314 , G11B5/6005 , G11B5/6011 , G11B5/607 , G11B5/6076 , G11B5/6088 , G11B7/1263 , G11B7/1267 , G11B7/127 , G11B2005/0021
Abstract: A slider configured for heat-assisted magnetic recording comprises an air bearing surface (ABS), a writer, and a close point of the writer. A plurality of heat producing or dissipating components are situated a predetermined distance from a vertical plane that is normal to the ABS and aligned with the close point. A location of the writer close point remains substantially consistent irrespective of which of the plurality of heat producing or dissipating components are energized.
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公开(公告)号：US10854224B1
公开(公告)日：2020-12-01
申请号：US16006112
申请日：2018-06-12
Applicant: Seagate Technology LLC
Inventor： John Charles Duda , Vasudevan Ramaswamy
Abstract: An apparatus comprising a slider is configured for heat-assisted magnetic recording. The slider comprises a media-facing surface. One or more reader elements are positioned in a reader region of the slider, and the one or more reader elements have an average first elevation at the media-facing surface. One or more writer elements are positioned in a writer region of the slider, and the one or more writer elements have an average second elevation at the media-facing surface. The average second elevation is less than the average first elevation.
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公开(公告)号：US10147446B1
公开(公告)日：2018-12-04
申请号：US16020465
申请日：2018-06-27
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Zoran Jandric , Vasudevan Ramaswamy
Abstract: An apparatus comprises a slider configured for heat assisted magnetic recording and comprising a substrate. At least one component of the slider generates heat when energized. At least one thermal via extends through a portion of the slider from a location proximate the component to the substrate. The thermal via is configured to conduct heat away from the component and to the substrate.
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公开(公告)号：US10032468B1
公开(公告)日：2018-07-24
申请号：US15344851
申请日：2016-11-07
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Zoran Jandric , Vasudevan Ramaswamy
CPC classification number: G11B5/3133 , G11B5/3136 , G11B5/6088 , G11B11/10534 , G11B11/10536 , G11B2005/0021
Abstract: An apparatus comprises a slider configured for heat assisted magnetic recording and comprising a substrate. At least one component of the slider generates heat when energized. At least one thermal via extends through a portion of the slider from a location proximate the component to the substrate. The thermal via is configured to conduct heat away from the component and to the substrate.
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公开(公告)号：US11790939B1
公开(公告)日：2023-10-17
申请号：US17567511
申请日：2022-01-03
Applicant: Seagate Technology LLC
Inventor： Helene Parwana Habibi , Vasudevan Ramaswamy , Raul H. Andruet , Neil Zuckerman , Frank A. McGinnity , Giovanni A. Badini Confalonieri , Martin L. McGarry , James G. Wessel , Pablo G. Levi
CPC classification number: G11B5/314 , G11B5/3163 , G11B5/4866 , G11B5/6088 , G11B2005/0021
Abstract: A recording head includes one or more transducer elements, and an electrically insulative layer encasing the one or more transducer elements. The recording head also includes a substrate below the electrically insulative layer. The recording head further includes a heat sinking layer between the electrically insulative layer and the substrate.
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Patent Agency Ranking
公开(公告)号：US09761279B2
公开(公告)日：2017-09-12
申请号：US15468216
申请日：2017-03-24
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： David Deen , Eric Singleton , Vasudevan Ramaswamy , Mohammed Patwari , Taras Pokhil , Jae-Young Yi
CPC classification number: G11B33/144 , G11B5/09 , G11B5/11 , G11B5/115 , G11B5/314 , G11B5/315 , G11B5/3912 , G11B5/398 , G11B5/40 , G11B5/607 , G11B20/18
Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
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公开(公告)号：US09607634B2
公开(公告)日：2017-03-28
申请号：US15045563
申请日：2016-02-17
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： David Deen , Eric Singleton , Vasudevan Ramaswamy , Mohammed Patwari , Taras Pokhil , Jae-Young Li
CPC classification number: G11B33/144 , G11B5/09 , G11B5/11 , G11B5/115 , G11B5/314 , G11B5/315 , G11B5/3912 , G11B5/398 , G11B5/40 , G11B5/607 , G11B20/18
Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
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公开(公告)号：US10366715B1
公开(公告)日：2019-07-30
申请号：US15873119
申请日：2018-01-17
Applicant: Seagate Technology LLC
Inventor： Vasudevan Ramaswamy
Abstract: A slider has a read transducer comprising first and second shields surrounding a read sensor. The first shield faces a substrate. A first end of the reader stack is at a media-facing surface of the slider and a second end of the reader stack faces away from the first end. A heater is located farther away from the media-facing surface than the second end of the read transducer. The heater is configured to control a thermal protrusion of the read transducer from the media-facing surface. A heat sink is located between the first shield and the substrate.
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公开(公告)号：US20170200479A1
公开(公告)日：2017-07-13
申请号：US15468216
申请日：2017-03-24
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： David Deen , Eric Singleton , Vasudevan Ramaswamy , Mohammed Patwari , Taras Pokhil , Jae-Young Li
CPC classification number: G11B33/144 , G11B5/09 , G11B5/11 , G11B5/115 , G11B5/314 , G11B5/315 , G11B5/3912 , G11B5/398 , G11B5/40 , G11B5/607 , G11B20/18
Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
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公开(公告)号：US20160163337A1
公开(公告)日：2016-06-09
申请号：US15045563
申请日：2016-02-17
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： David Deen , Eric Singleton , Vasudevan Ramaswamy , Mohammed Patwari , Taras Pokhil , Jae-Young Li
CPC classification number: G11B33/144 , G11B5/09 , G11B5/11 , G11B5/115 , G11B5/314 , G11B5/315 , G11B5/3912 , G11B5/398 , G11B5/40 , G11B5/607 , G11B20/18
Abstract: Various embodiments of a magnetic stack are disclosed. In one or more embodiments, the magnetic stack includes first and second shield layers, and a magnetically responsive lamination disposed between the first and second shield layers. The magnetically responsive lamination can be configured to receive a sense current IS therethrough. The magnetic stack also includes a cooling element disposed between the first and second shield layers and thermally coupled to the magnetically responsive lamination. The cooling element can be configured to receive a bias current IB therethrough. And the cooling element can be configured to cool the magnetically responsive lamination during a read function.
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