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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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2.发明申请APPARATUSES AND METHODS FOR CONTROLLING NEAR-FIELD TRANSDUCER TO WRITE POLE SPACING 审中-公开将近场传感器控制到写入间距的装置和方法公开(公告)号：US20150071045A1
公开(公告)日：2015-03-12
申请号：US14546767
申请日：2014-11-18
Applicant: Seagate Technology LLC
Inventor： Hua Zhou , Yongjun Zhao , Chris Rea , Werner Scholz , James G. Wessel
CPC classification number: G11B5/6082 , G11B5/1272 , G11B5/187 , G11B5/31 , G11B5/3116 , G11B5/3136 , G11B5/314 , G11B5/4866 , G11B5/84 , G11B13/08 , G11B2005/0021
Abstract: An apparatus includes a waveguide and a near-field transducer adjacent the waveguide. The near-field transducer includes an enlarged region and a peg region extending from the enlarged region towards an air bearing surface. A write pole is adjacent the near-field transducer and include a first portion having an edge extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface. A second portion of the write pole extends orthogonally to the air bearing surface and is in contact with the first portion. The apparatus includes an insulator-filled gap at the air bearing surface between the second portion of the write pole and the peg region of the near-field transducer. The gap is bounded away from the air bearing surface by the enlarged region of the near-field transducer.
Abstract translation: 一种装置包括波导和邻近波导的近场换能器。 近场换能器包括从扩大区域向空气轴承表面延伸的扩大区域和钉区域。 写极与邻近的换能器相邻并且包括第一部分，该第一部分具有相对于空气支承表面以非正交角度朝着空气支承表面延伸的边缘。 写磁极的第二部分垂直于空气轴承表面延伸并与第一部分接触。 该装置包括在写极的第二部分和近场换能器的钉区之间的空气支承表面处的绝缘体填充间隙。 间隙通过近场换能器的放大区域与空气轴承表面隔开。
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3.发明授权Apparatuses and methods for controlling near-field transducer to write pole spacing 有权用于控制近场换能器来写磁极间距的装置和方法公开(公告)号：US09076475B2
公开(公告)日：2015-07-07
申请号：US14546767
申请日：2014-11-18
Applicant: Seagate Technology LLC
Inventor： Hua Zhou , Yongjun Zhao , Chris Rea , Werner Scholz , James G. Wessel
CPC classification number: G11B5/6082 , G11B5/1272 , G11B5/187 , G11B5/31 , G11B5/3116 , G11B5/3136 , G11B5/314 , G11B5/4866 , G11B5/84 , G11B13/08 , G11B2005/0021
Abstract: An apparatus includes a waveguide and a near-field transducer adjacent the waveguide. The near-field transducer includes an enlarged region and a peg region extending from the enlarged region towards an air bearing surface. A write pole is adjacent the near-field transducer and include a first portion having an edge extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface. A second portion of the write pole extends orthogonally to the air bearing surface and is in contact with the first portion. The apparatus includes an insulator-filled gap at the air bearing surface between the second portion of the write pole and the peg region of the near-field transducer. The gap is bounded away from the air bearing surface by the enlarged region of the near-field transducer.
Abstract translation: 一种装置包括波导和邻近波导的近场换能器。 近场换能器包括从扩大区域向空气轴承表面延伸的扩大区域和钉区域。 写极与邻近的换能器相邻并且包括具有相对于空气支承表面以非正交角度朝向空气支承表面延伸的边缘的第一部分。 写磁极的第二部分垂直于空气轴承表面延伸并且与第一部分接触。 该装置包括在写极的第二部分和近场换能器的钉区之间的空气支承表面处的绝缘体填充间隙。 间隙通过近场换能器的放大区域与空气轴承表面隔开。
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公开(公告)号：US20240331724A1
公开(公告)日：2024-10-03
申请号：US18436496
申请日：2024-02-08
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： James G. Wessel , Manish Kapoor , Jianhua Xue
CPC classification number: G11B5/187 , G11B2005/0021 , G11B2209/02
Abstract: Described is a recording head that includes a notched write pole to enhance perpendicularity of the write pole field. The write pole notch is formed at the media-facing surface and the leading edge of the write pole. The write pole notch is filled with a non-magnetic metal. The recording head further includes a near field transducer located in front of the leading edge of the write pole and having a portion extending to the media-facing surface that is spaced apart from the notch, thereby forming a gap between the near field transducer and the notch.
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公开(公告)号：US11217273B1
公开(公告)日：2022-01-04
申请号：US17116107
申请日：2020-12-09
Applicant: Seagate Technology LLC
Inventor： Helene Parwana Habibi , Vasudevan Ramaswamy , Raul H. Andruet , Neil Zuckerman , Frank A. McGinnity , Giovanni A. Badini Confalioneri , Martin L. McGarry , James G. Wessel , Pablo G. Levi
IPC: G11B11/105 , G11B5/31 , G11B5/00 , G11B5/60 , G11B5/48
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：US10186291B1
公开(公告)日：2019-01-22
申请号：US15603730
申请日：2017-05-24
Applicant: Seagate Technology LLC
Inventor： Narayanan Ramakrishnan , Jon Karsten Klarqvist , James G. Wessel , Declan Macken
Abstract: A head slider for use in a disk drive is movably positionable relative to a magnetic recording disk and includes at least one write element for writing data to the magnetic recording disk. The write element includes a writer coil electrically connected between a first bond pad and a second bond pad, where the connection between the first bond pad and the second bond pad includes a center tap located proximate to a voltage null point. The head slider also includes at least one read element for reading data from the magnetic recording disk, the read element electrically connected between the center tap and a third bond pad, where the write element and the read element are configured to be selectively activated based on biased inputs to the first bond pad, the second bond pad, and the third bond pad.
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7.发明授权Apparatuses and methods for controlling near-field transducer to write pole spacing 有权用于控制近场换能器来写磁极间距的装置和方法公开(公告)号：US08891205B2
公开(公告)日：2014-11-18
申请号：US13864201
申请日：2013-04-16
Applicant: Seagate Technology LLC
Inventor： Hua Zhou , Yongjun Zhao , Chris Rea , Werner Scholz , James G. Wessel
IPC: G11B5/60
CPC classification number: G11B5/6082 , G11B5/1272 , G11B5/187 , G11B5/31 , G11B5/3116 , G11B5/3136 , G11B5/314 , G11B5/4866 , G11B5/84 , G11B13/08 , G11B2005/0021
Abstract: An apparatus is provided that includes a waveguide adjacent an air bearing surface, a near-field transducer comprising a peg having a side orthogonal to the air bearing surface and a write pole adjacent to the waveguide. The write pole includes a first portion extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface, and a second portion in contact with the first portion comprising a side that extends towards and orthogonally contacts the air bearing surface. The second portion or the write pole defines a gap between the side of the peg orthogonal to the air bearing surface and the side of the second portion of the write pole that extends towards and orthogonally contacts the air bearing surface. A method of making a magnetic recording head that includes the provided apparatus is also disclosed.
Abstract translation: 提供了一种装置，其包括邻近空气轴承表面的波导，近场换能器，其包括具有与空气轴承表面正交的一侧的螺栓和与波导相邻的写入极。 写柱包括相对于空气轴承表面以非正交角度朝向空气轴承表面延伸的第一部分，以及与第一部分接触的第二部分，包括朝向并垂直于空气承载表面接触的侧面 。 第二部分或写入磁极限定了垂直于空气轴承表面的销的侧面与朝向和垂直接触空气轴承表面的写入磁极的第二部分的侧面之间的间隙。 还公开了一种制造包括所提供的装置的磁记录头的方法。
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8.发明申请APPARATUSES AND METHODS FOR CONTROLLING NEAR-FIELD TRANSDUCER TO WRITE POLE SPACING 有权将近场传感器控制到写入间距的装置和方法公开(公告)号：US20140307534A1
公开(公告)日：2014-10-16
申请号：US13864201
申请日：2013-04-16
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Hua Zhou , Yongjun Zhao , Chris Rea , Werner Scholz , James G. Wessel
CPC classification number: G11B5/6082 , G11B5/1272 , G11B5/187 , G11B5/31 , G11B5/3116 , G11B5/3136 , G11B5/314 , G11B5/4866 , G11B5/84 , G11B13/08 , G11B2005/0021
Abstract: An apparatus is provided that includes a waveguide adjacent an air bearing surface, a near-field transducer comprising a peg having a side orthogonal to the air bearing surface and a write pole adjacent to the waveguide. The write pole includes a first portion extending towards the air bearing surface at a non-orthogonal angle with respect to the air bearing surface, and a second portion in contact with the first portion comprising a side that extends towards and orthogonally contacts the air bearing surface. The second portion or the write pole defines a gap between the side of the peg orthogonal to the air bearing surface and the side of the second portion of the write pole that extends towards and orthogonally contacts the air bearing surface. A method of making a magnetic recording head that includes the provided apparatus is also disclosed.
Abstract translation: 提供了一种装置，其包括邻近空气轴承表面的波导，近场换能器，其包括具有与空气支承表面正交的一侧的螺栓和与波导相邻的写入极。 写柱包括相对于空气轴承表面以非正交角度朝向空气轴承表面延伸的第一部分，以及与第一部分接触的第二部分，包括朝向并垂直于空气承载表面接触的侧面 。 第二部分或写入磁极限定了垂直于空气轴承表面的销的侧面与朝向和垂直接触空气轴承表面的写入磁极的第二部分的侧面之间的间隙。 还公开了一种制造包括所提供的装置的磁记录头的方法。
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公开(公告)号：US08817407B2
公开(公告)日：2014-08-26
申请号：US13798463
申请日：2013-03-13
Applicant: Seagate Technology LLC
Inventor： James G. Wessel , Steven C. Riemer , Zoran Jandric
CPC classification number: G11B13/08 , G11B5/3136 , G11B5/314 , G11B2005/0021
Abstract: An apparatus that includes a write pole, the write pole including a magnetic material; a near field transducer-heat sink (NFT-HS), the NFT-HS including a noble metal; and a power source configured to electrically bias the write pole with respect to a second structure.
Abstract translation: 一种包括写入极的装置，所述写入极包括磁性材料; 近场换能器散热器（NFT-HS），NFT-HS包括贵金属; 以及电源，被配置为相对于第二结构使写入极电偏置。
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公开(公告)号：US20130286806A1
公开(公告)日：2013-10-31
申请号：US13798463
申请日：2013-03-13
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： James G. Wessel , Steven C. Riemer , Zoran Jandric
IPC: G11B13/08
CPC classification number: G11B13/08 , G11B5/3136 , G11B5/314 , G11B2005/0021
Abstract: An apparatus that includes a write pole, the write pole including a magnetic material; a near field transducer-heat sink (NFT-HS), the NFT-HS including a noble metal; and a power source configured to electrically bias the write pole with respect to a second structure.
Abstract translation: 一种包括写入极的装置，所述写入极包括磁性材料; 近场换能器散热器（NFT-HS），NFT-HS包括贵金属; 以及电源，被配置为相对于第二结构使写入极电偏置。
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