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公开(公告)号：US11935569B2
公开(公告)日：2024-03-19
申请号：US18125289
申请日：2023-03-23
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Jason Gadbois
IPC: G11B5/31 , B24B37/005 , G11B5/39 , G11B5/60
CPC classification number: G11B5/3169 , B24B37/005 , G11B5/3116 , G11B5/3166 , G11B5/3906 , G11B5/6011 , Y10T29/49032 , Y10T29/49048 , Y10T29/5313
Abstract: The present invention is directed to the fabrication of head sliders for use in hard disk drives, and in particular the provision and usage of electrical bond pads on the slider surface structure to accommodate needs of the fabrication process as well as slider operation within a disk drive.
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公开(公告)号：US11636875B2
公开(公告)日：2023-04-25
申请号：US17336545
申请日：2021-06-02
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Jason Gadbois
IPC: G11B5/31 , B24B37/005 , G11B5/60 , G11B5/39
Abstract: The present invention is directed to the fabrication of head sliders for use in hard disk drives, and in particular the provision and usage of electrical bond pads on the slider surface structure to accommodate needs of the fabrication process as well as slider operation within a disk drive.
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公开(公告)号：US11037585B2
公开(公告)日：2021-06-15
申请号：US15964903
申请日：2018-04-27
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Jason Gadbois
IPC: G11B5/127 , G11B5/31 , B24B37/005 , G11B5/60 , G11B5/39
Abstract: The present invention is directed to the fabrication of head sliders for use in hard disk drives, and in particular the provision and usage of electrical bond pads on the slider surface structure to accommodate needs of the fabrication process as well as slider operation within a disk drive.
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4.发明授权公开(公告)号：US10783918B2
公开(公告)日：2020-09-22
申请号：US16591892
申请日：2019-10-03
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Roger L. Hipwell, Jr.
Abstract: An apparatus comprises a slider configured to facilitate heat assisted magnetic recording and a submount affixed to the slider. A laser unit is affixed to the submount and comprises a laser operable in a non-lasing state and a lasing state. A heater is embedded in the laser unit or the submount. The heater is configured to generate preheat for heating the laser during the non-lasing state and to generate steering heat for heating the laser during the lasing state.
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公开(公告)号：US10325622B2
公开(公告)日：2019-06-18
申请号：US15947319
申请日：2018-04-06
Applicant: Seagate Technology LLC
Inventor： Karim Tatah , Mourad Benakli , James Gary Wessel
IPC: H01S5/06 , G11B7/1263 , H01S5/068 , H01S5/026 , H01S5/065 , G11B5/09 , G11B5/02 , G11B5/40 , G11B5/455 , G11B5/00 , H01S5/024 , H01S5/062
Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.
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Patent Agency Ranking
公开(公告)号：US10249328B2
公开(公告)日：2019-04-02
申请号：US15001475
申请日：2016-01-20
Applicant: Seagate Technology LLC
Inventor： Gary Joseph Kunkel , Raul Horacio Andruet , James Gary Wessel
Abstract: A slider comprises an air bearing surface (ABS) and is configured to interact with a magnetic recording medium. A writer is provided on the slider and comprises a write coil having a media-facing surface situated at the ABS. Cooling arms project laterally from peripheral surfaces of the write coil and extend along the ABS. The media-facing surface of the write coil and the cooling arms are exposed to the ABS to facilitate increased cooling of the write coil at the ABS.
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公开(公告)号：US20170372733A1
公开(公告)日：2017-12-28
申请号：US15698065
申请日：2017-09-07
Applicant: Seagate Technology LLC
Inventor： Kevin Anthony McNeill , Lars Ahlen , Jason Bryce Gadbois , James Gary Wessel , Bradley Ver Meer
CPC classification number: G11B5/4853 , G11B5/10 , G11B5/314 , G11B5/4826 , G11B5/607 , G11B2005/0021
Abstract: A slider of a magnetic recording head comprises a media-facing surface, an upper surface opposing the media-facing surface, a leading edge, and a trailing edge. A plurality of electrical bond pads is disposed in a spaced-apart relationship on the trailing edge of the slider. An interconnect interposer is connected to the trailing edge of the slider. The interposer comprises a back side comprising a plurality of electrical contacts in contact with the plurality of bond pads on the trailing edge of the slider. The interposer also comprises a front side comprising a plurality of electrical interposer pads corresponding in number to the plurality of electrical contacts on the back side. The interposer further comprises a plurality of conductors each of which electrically couples one of the plurality of electrical contacts on the back side with one of the plurality of interposer pads on the front side.
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公开(公告)号：US09786308B1
公开(公告)日：2017-10-10
申请号：US15175327
申请日：2016-06-07
Applicant: Seagate Technology LLC
Inventor： Kevin Anthony McNeill , Lars Ahlen , Jason Bryce Gadbois , James Gary Wessel , Bradley Ver Meer
CPC classification number: G11B5/4853 , G11B5/10 , G11B5/314 , G11B5/4826 , G11B5/607 , G11B2005/0021
Abstract: A slider of a magnetic recording head comprises a media-facing surface, an upper surface opposing the media-facing surface, a leading edge, and a trailing edge. A plurality of electrical bond pads is disposed in a spaced-apart relationship on the trailing edge of the slider. An interconnect interposer is connected to the trailing edge of the slider. The interposer comprises a back side comprising a plurality of electrical contacts in contact with the plurality of bond pads on the trailing edge of the slider. The interposer also comprises a front side comprising a plurality of electrical interposer pads corresponding in number to the plurality of electrical contacts on the back side. The interposer further comprises a plurality of conductors each of which electrically couples one of the plurality of electrical contacts on the back side with one of the plurality of interposer pads on the front side.
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公开(公告)号：US20170206917A1
公开(公告)日：2017-07-20
申请号：US15001475
申请日：2016-01-20
Applicant: Seagate Technology LLC
Inventor： Gary Joseph Kunkel , Raul Horacio Andruet , James Gary Wessel
CPC classification number: G11B5/17 , G11B5/012 , G11B5/187 , G11B5/3106 , G11B5/3123 , G11B5/3133 , G11B5/3136 , G11B5/40 , G11B2005/0021
Abstract: A slider comprises an air bearing surface (ABS) and is configured to interact with a magnetic recording medium. A writer is provided on the slider and comprises a write coil having a media-facing surface situated at the ABS. Cooling arms project laterally from peripheral surfaces of the write coil and extend along the ABS. The media-facing surface of the write coil and the cooling arms are exposed to the ABS to facilitate increased cooling of the write coil at the ABS.
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公开(公告)号：US20160189741A1
公开(公告)日：2016-06-30
申请号：US15061166
申请日：2016-03-04
Applicant: Seagate Technology LLC
Inventor： Karim Tatah , Mourad Benakli , James Gary Wessel
IPC: G11B7/1263 , G11B5/09
CPC classification number: G11B7/1263 , G11B5/02 , G11B5/09 , G11B5/40 , G11B5/455 , G11B2005/0021 , H01S5/02453 , H01S5/0261 , H01S5/0612 , H01S5/0617 , H01S5/06216 , H01S5/0651 , H01S5/06804 , H01S5/06808
Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.
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