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11.发明授权Recording head for heat assisted magnetic recording with diffusion barrier surrounding a near field transducer 有权用于辅助磁记录的记录头，具有围绕近场传感器的扩散屏障公开(公告)号：US08477454B2
公开(公告)日：2013-07-02
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: G11B5/02
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.
Abstract translation: 一种装置包括邻近空气轴承表面定位的近场换能器，第一磁极，位于第一磁极和近场换能器之间的散热器，以及位于近场换能器与第一磁极之间的扩散阻挡层 。 扩散阻挡层可以邻近磁极或近场传感器定位。
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公开(公告)号：US10964342B1
公开(公告)日：2021-03-30
申请号：US16890385
申请日：2020-06-02
Applicant: Seagate Technology LLC
IPC: G11B5/48
Abstract: A method of controlling a shape and size of at least one solder joint of a magnetic recording head that includes a trailing surface and a plurality of bond pads, wherein each bond pad comprises a base layer comprising a top surface and a top edge, the method including the steps of forming at least one solder dam by covering a portion of the top surface of the base layer of at least one of the bond pads with a coating layer that comprises a nonwettable, electrically conductive material positioned adjacent to the top edge of at least one of the bond pads, thereby defining a coated portion and an uncoated portion of the base layer, and applying solder material to the uncoated portion of the base layer adjacent to the solder dam so that the coating layer constrains movement of the solder material beyond the uncoated portion.
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公开(公告)号：US09761252B2
公开(公告)日：2017-09-12
申请号：US14839268
申请日：2015-08-28
Applicant: Seagate Technology LLC
Inventor： Wei Tian , Venkateswara Rao Inturi , Dong Lin , Huaqing Yin , Jiaoming Qiu
CPC classification number: G11B5/235 , G11B5/1278 , G11B5/187 , G11B5/23 , G11B5/232 , G11B5/3116 , G11B5/3143 , G11B5/3163 , G11B5/332 , G11B5/6082 , Y10T428/115 , Y10T428/1193
Abstract: An apparatus has a main pole layer of magnetic material, a second layer of magnetic material, a first gap layer of non-magnetic material between the main pole layer and the second layer of magnetic material, and a second gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material. The second gap layer of non-magnetic material can be directly adjacent to the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. A method of manufacturing such a device is also described.
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公开(公告)号：US08842391B2
公开(公告)日：2014-09-23
申请号：US14062675
申请日：2013-10-24
Applicant: Seagate Technology LLC
Inventor： Jie Zou , Kaizhong Gao , William Albert Challener , Mark Henry Ostrowski , Venkateswara Rao Inturi , Tong Zhao , Michael Christopher Kautzky
IPC: G11B5/02
CPC classification number: G11B11/10534 , G11B5/3106 , G11B5/3133 , G11B5/3136 , G11B5/314 , G11B2005/0021
Abstract: An apparatus including a near field transducer positioned adjacent to an air bearing surface, the near field transducer including an electrically conductive nitride; a first magnetic pole; and a heat sink, a diffusion barrier layer, or both positioned between the first magnetic pole and the near field transducer, wherein the heat sink, the diffusion barrier or both include rhodium (Rh) or an alloy thereof; ruthenium (Ru) or an alloy thereof titanium (Ti) or an alloy thereof tantalum (Ta) or an alloy thereof tungsten (W) or an alloy thereof borides; nitrides; transition metal oxides; or palladium (Pd) or an alloy thereof.
Abstract translation: 一种包括邻近空气轴承表面定位的近场换能器的装置，所述近场换能器包括导电氮化物; 第一个磁极; 以及位于第一磁极和近场换能器之间的散热器，扩散阻挡层或两者，其中散热器，扩散阻挡层或二者均包括铑（Rh）或其合金; 钌（Ru）或其合金钛（Ti）或其合金钽（Ta）或其合金钨（W）或其合金硼化物; 氮化物 过渡金属氧化物; 或钯（Pd）或其合金。
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公开(公告)号：US20140272471A1
公开(公告)日：2014-09-18
申请号：US13797165
申请日：2013-03-12
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Wei Tian , Venkateswara Rao Inturi , Doug Lin , Huaqing Yin , Jiaoming Qiu
IPC: G11B5/33
CPC classification number: G11B5/235 , G11B5/1278 , G11B5/187 , G11B5/23 , G11B5/232 , G11B5/3116 , G11B5/3143 , G11B5/3163 , G11B5/332 , G11B5/6082 , Y10T428/115 , Y10T428/1193
Abstract: In accordance with one embodiment, an apparatus can be configured that includes a main pole layer of magnetic material; a second layer of magnetic material; a first gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material; a second gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material; and wherein the second gap layer of non-magnetic material is disposed directly adjacent to the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. In accordance with one embodiment, a method of manufacturing such a device may also be utilized.
Abstract translation: 根据一个实施例，可以构造一种装置，其包括磁性材料的主极层; 第二层磁性材料; 设置在所述主极层和所述第二磁性材料层之间的非磁性材料的第一间隙层; 设置在主极层和第二磁性材料层之间的非磁性材料的第二间隙层; 并且其中所述非磁性材料的所述第二间隙层直接邻近所述第二磁性材料层设置。 根据一个实施例，这允许间隙用作第二层磁性材料的非磁性种子。 根据一个实施例，这允许间隙用作第二层磁性材料的非磁性种子。 根据一个实施例，还可以使用制造这种装置的方法。
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Patent Agency Ranking
公开(公告)号：US20140268415A1
公开(公告)日：2014-09-18
申请号：US13796951
申请日：2013-03-12
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Wei Tian , Venkateswara Rao Inturi , Doug Lin , Huaqing Yin , Jiaoming Qiu
CPC classification number: G11B5/3176 , B81C1/00611 , B81C2201/0109 , C09K13/00 , C23F4/00 , G03F7/0041 , G11B5/1278 , G11B5/187 , G11B5/232 , G11B5/235 , G11B5/3109 , G11B5/3116 , G11B5/3143 , G11B5/3163
Abstract: In accordance with one embodiment, a method may be implemented by depositing a non-magnetic gap layer of material above a main pole layer of magnetic material; depositing a sacrificial layer of material above the non-magnetic gap layer of material; etching a portion of the sacrificial layer of material while not entirely removing the sacrificial layer of material; and depositing additional sacrificial material to the etched sacrificial layer.
Abstract translation: 根据一个实施例，可以通过在磁性材料的主极层之上沉积材料的非磁隙层来实现一种方法; 在材料的非磁隙层之上沉积材料牺牲层; 在不完全去除材料的牺牲层的同时蚀刻材料的牺牲层的一部分; 以及将另外的牺牲材料沉积到蚀刻的牺牲层。
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公开(公告)号：US20140169146A1
公开(公告)日：2014-06-19
申请号：US13718946
申请日：2012-12-18
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Huaqing Yin , Jianhua Xue , Venkateswara Rao Inturi , Mark Thomas Kief , Michael C. Kautzky
IPC: G11B5/127
CPC classification number: G11B5/1278 , G11B5/3116 , Y10T428/115
Abstract: A write pole structure disclosed herein includes a write pole, a trailing shield, and a high magnetic moment (HMM) material layer on a surface of the trailing shield facing the write pole.
Abstract translation: 本文公开的写柱结构包括位于后屏蔽件面对写极的表面上的写极，后屏蔽和高磁矩（HMM）材料层。
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公开(公告)号：US20130233823A1
公开(公告)日：2013-09-12
申请号：US13868515
申请日：2013-04-23
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Vladyslav Alexandrovich Vas'ko , Venkateswara Rao Inturi , Michael C. Kautzky , Zhihong Lu , Mark T. Kief , Yifan Zhang
IPC: G11B5/84
CPC classification number: G11B5/84 , G11B5/3912 , G11B5/398
Abstract: A magneto-resistive reader includes a first magnetic shield element, a second magnetic shield element and a magneto-resistive sensor stack separating the first magnetic shield element from the second magnetic shield element. The first shield element includes two ferromagnetic anisotropic layers separated by a grain growth suppression layer.
Abstract translation: 磁阻读取器包括第一磁屏蔽元件，第二磁屏蔽元件和将第一磁屏蔽元件与第二磁屏蔽元件分开的磁阻传感器堆叠。 第一屏蔽元件包括由晶粒生长抑制层分开的两个铁磁各向异性层。
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公开(公告)号：US11798581B1
公开(公告)日：2023-10-24
申请号：US17657698
申请日：2022-04-01
Applicant: Seagate Technology LLC
Inventor： Venkateswara Rao Inturi , Michael C. Kautzky , Tong Zhao
CPC classification number: G11B5/3133 , C23C14/086 , C23C14/3414 , G11B13/08 , G11B2005/0021
Abstract: A hard disk drive (HDD) includes a heat-assisted magnetic recording (HAMR) head. The HAMR head includes one or more features comprising a nanoparticle-reinforced plasmonic matrix. The nanoparticle-reinforced plasmonic matrix comprises a plasmonic metal and a plurality of nanoparticles dispersed in the plasmonic metal. The nanoparticles comprise a transparent conductive oxide.
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20.发明授权公开(公告)号：US09664572B2
公开(公告)日：2017-05-30
申请号：US13687445
申请日：2012-11-28
Applicant: Seagate Technology LLC
Inventor： Wei Tian , Declan Macken , Huaqing Yin , Venkateswara Rao Inturi , Eric Walter Singleton
CPC classification number: G01K7/16 , C23C14/06 , G11B5/607 , H01C7/006 , H01C7/008 , H01C7/021 , H01C7/06
Abstract: An apparatus comprises a head transducer and a resistive temperature sensor provided on the head transducer. The resistive temperature sensor comprises a first layer comprising a conductive material and having a temperature coefficient of resistance (TCR) and a second layer comprising at least one of a specular layer and a seed layer. A method is disclosed to fabricate such sensor with a laminated thin film structure to achieve a large TCR. The thicknesses of various layers in the laminated thin film are in the range of few to a few tens of nanometers. The combinations of the deliberately optimized multilayer thin film structures and the fabrication of such films at the elevated temperatures are disclosed to obtain the large TCR.
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