公开(公告)号：US11074929B1

公开(公告)日：2021-07-27

申请号：US16920093

申请日：2020-07-02

申请人： Western Digital Technologies, Inc.

发明人： John Pierre Herber ,  Mark David Alnas Alias ,  Aileen Ticzon Jara ,  Reimar Azupardo

IPC分类号： G11B5/255 ,  G11B5/235 ,  G11B5/127 ,  G11B5/31 ,  G11B5/40 ,  G11B5/39 ,  G11B5/60 ,  G11B5/00

摘要： Aspects of the present disclosure provide various magnetic recording slider structures and fabrication methods that can reduce head overcoat (HOC) thickness without significantly reducing the lifetime and reliability of a slider by using a protective cap placed on preselected locations on the outermost surface or HOC of the slider. A slider includes a writer comprising an energy-assisted recording element. The writer is configured to store information on a magnetic medium using the energy-assisted recording element. The slider includes a head overcoat (HOC) layer providing an outermost media facing surface. The slider further includes a protective cap positioned on the HOC layer to at least partially cover the energy-assisted recording element, the protective cap including a preselected shape configured to protect the energy-assisted recording element.

公开(公告)号：US11605397B2

公开(公告)日：2023-03-14

申请号：US17349698

申请日：2021-06-16

申请人： Western Digital Technologies, Inc.

发明人： John Pierre Herber ,  Mark David Alnas Alias ,  Aileen Ticzon Jara ,  Reimar Azupardo

IPC分类号： G11B5/255 ,  G11B5/235 ,  G11B5/127 ,  G11B5/31 ,  G11B5/40 ,  G11B5/39 ,  G11B5/60 ,  G11B5/00

摘要： Aspects of the present disclosure provide various magnetic recording slider structures and fabrication methods that can reduce head overcoat (HOC) thickness without significantly reducing the lifetime and reliability of a slider by using a protective cap placed on preselected locations on the outermost surface or HOC of the slider. A slider includes a writer comprising an energy-assisted recording element. The writer is configured to store information on a magnetic medium using the energy-assisted recording element. The slider includes a head overcoat (HOC) layer providing an outermost media facing surface. The slider further includes a protective cap positioned on the HOC layer to at least partially cover the energy-assisted recording element, the protective cap including a preselected shape configured to protect the energy-assisted recording element.

公开(公告)号：US20210407535A1

公开(公告)日：2021-12-30

申请号：US17349698

申请日：2021-06-16

申请人： Western Digital Technologies, Inc.

发明人： John Pierre Herber ,  Mark David Alnas Alias ,  Aileen Ticzon Jara ,  Reimar Azupardo

IPC分类号： G11B5/255 ,  G11B5/127 ,  G11B5/235 ,  G11B5/39 ,  G11B5/31 ,  G11B5/40

摘要： Aspects of the present disclosure provide various magnetic recording slider structures and fabrication methods that can reduce head overcoat (HOC) thickness without significantly reducing the lifetime and reliability of a slider by using a protective cap placed on preselected locations on the outermost surface or HOC of the slider. A slider includes a writer comprising an energy-assisted recording element. The writer is configured to store information on a magnetic medium using the energy-assisted recording element. The slider includes a head overcoat (HOC) layer providing an outermost media facing surface. The slider further includes a protective cap positioned on the HOC layer to at least partially cover the energy-assisted recording element, the protective cap including a preselected shape configured to protect the energy-assisted recording element.