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公开(公告)号：US20180082713A1
公开(公告)日：2018-03-22
申请号：US15713023
申请日：2017-09-22
Applicant: Seagate Technology LLC
Inventor： Randall Victora , Zengyuan Liu , Pin-wei Huang , Ganping Ju , Jan-Ulrich Thiele
IPC: G11B17/028 , G11B5/66 , G11B5/65
CPC classification number: G11B5/66 , G11B5/012 , G11B5/1278 , G11B5/65 , G11B17/028 , G11B2005/0021 , G11B2220/23
Abstract: A heat-assisted magnetic recording media structure with exchange-coupled composite layer structure may be utilized in a data storage device. The heat-assisted magnetic recording disk structure can have a FePt-based layer as a storage layer and a FePt-based or a CoPt-based magnetic layer with higher Curie temperature as a write layer. The interface between the write layer and the storage layer may be separated by an exchange control layer. The composite structure can be optimized to reduce jitter for high density data storage by tuning the exchange coupling between the write layer and storage layer.
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公开(公告)号：US09697857B1
公开(公告)日：2017-07-04
申请号：US15165637
申请日：2016-05-26
Applicant: Seagate Technology LLC
Inventor： Joachim Ahner , David M. Tung , Ganping Ju , Philip L. Steiner , Thomas P. Nolan , Thomas Y. Chang , Pin-Wei Huang , Kaizhong Gao , Timothy Klemmer , David S. Kuo
CPC classification number: G11B5/66 , G11B5/02 , G11B2005/0021 , G11B2005/0024
Abstract: A three dimensional magnetic recording media can consist of a coupling layer disposed between first and second vertically stacked recording layers. The coupling layer can provide exchange or antiferromagnetic coupling and allow the respective recording layers to be individually heat selected to different first and second coupling strengths through application of heat from a heat source.
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公开(公告)号：US09520151B2
公开(公告)日：2016-12-13
申请号：US13836521
申请日：2013-03-15
Applicant: Seagate Technology LLC
Inventor： Jiaoming Qui , Yonghua Chen , Ganping Ju , Thomas P. Nolan
IPC: G11B5/84 , C21D1/26 , G11B5/66 , G11B5/64 , B32B15/01 , G11B5/65 , G11B5/73 , C21D9/00 , C22C5/04 , C22C30/00 , C22C38/00 , C21D8/12
CPC classification number: G11B5/85 , B32B15/01 , B32B15/017 , B32B15/018 , B32B2307/208 , B32B2307/706 , B32B2457/00 , C21D1/26 , C21D8/12 , C21D9/0068 , C21D2211/004 , C21D2281/02 , C22C5/04 , C22C30/00 , C22C38/002 , C22F1/14 , C23C14/165 , C23C14/221 , C23C14/28 , C23C14/3464 , C23C14/35 , C23C14/5806 , C23C14/5833 , C23C14/5873 , G11B5/647 , G11B5/65 , G11B5/653 , G11B5/66 , G11B5/732 , G11B5/84 , G11B5/851
Abstract: A method involves depositing a seed layer comprising at least A1 phase FePt. A main layer of A1 phase FePt is deposited over the seed layer. The main layer includes FePt of a different stoichiometry than the seed layer. The seed and main layers are annealed to convert the A1 phase FePt to L10 phase FePt. The annealing involves heating the substrate prior to depositing at least part of the A1 phase FePt of the main or seed layers.
Abstract translation: 一种方法包括沉积包含至少Al相FePt的种子层。 A1相FePt的主层沉积在种子层上。 主层包括与种子层不同化学计量的FePt。 将种子和主层退火以将Al相FePt转化为L10相FePt。 退火包括在沉积主层或种子层的Al相FePt的至少一部分之前加热衬底。
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34.发明申请HEAT-ASSISTED ROTATING DISK MAGNETOMETER FOR ULTRA-HIGH ANISOTROPY MAGNETIC MEASUREMENTS 审中-公开用于超高分辨率磁性测量的热辅助旋转磁铁计公开(公告)号：US20160343396A1
公开(公告)日：2016-11-24
申请号：US15149361
申请日：2016-05-09
Applicant: Seagate Technology LLC
Inventor： Kangkang Wang , Xiaobin Zhu , Ganping Ju , Kai Chieh Chang , Yingguo Peng , Timothy J. Klemmer , Jan-Ulrich Thiele
IPC: G11B7/1267 , G11B5/024
CPC classification number: G11B7/1267 , G01R33/0325 , G11B5/024 , G11B5/4555 , G11B27/36 , G11B2005/0021
Abstract: An apparatus comprises a spindle to rotate a magnetic recording medium and a magnetic field generator to expose a track of the medium to a DC magnetic field. The magnetic field generator is configured to saturate the track during an erase mode and reverse the DC magnetic field impinging the track during a writing mode. A laser arrangement heats the track during the erase mode and, during the writing mode, heats the track while the track is exposed to the reversed DC magnetic field so as to write a magnetic pattern thereon. A reader reads the magnetic pattern and generates a read signal. A processor is coupled to the reader and configured to measure one or more magnetic properties of the track using the read signal. The apparatus can further comprise a Kerr sensor that generates a Kerr signal using the magnetic pattern.
Abstract translation: 一种装置包括用于旋转磁记录介质的主轴和磁场发生器，以将介质的轨道暴露于DC磁场。 磁场发生器被配置为在擦除模式期间使轨道饱和，并在写入模式期间逆转撞击轨道的直流磁场。 激光装置在擦除模式期间加热轨道，并且在写入模式期间，加热轨道，同时轨道暴露于反向的DC磁场，以便在其上写入磁性图案。 读取器读取磁性图案并产生读取信号。 处理器耦合到读取器并且被配置为使用读取信号来测量轨道的一个或多个磁性。 该装置还可以包括使用磁图案产生克尔信号的克尔传感器。
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公开(公告)号：US09368142B2
公开(公告)日：2016-06-14
申请号：US14035931
申请日：2013-09-24
Applicant: Seagate Technology LLC
Inventor： Jingsheng Chen , Huihui Li , Ganping Ju , Yingguo Peng
CPC classification number: G11B5/738 , C23C14/0641 , C23C14/08 , C23C14/14 , G11B5/65 , G11B5/667 , G11B5/7325
Abstract: A magnetic stack includes a substrate, a magnetic recording layer, and a TiN—X layer disposed between the substrate and the magnetic recording layer. In the TiN—X layer, X is a dopant comprising at least one of MgO, TiO, TiO2, ZrN, ZrO, ZrO2, HfN, HfO, AlN, and Al2O3.
Abstract translation: 磁性堆叠包括基板，磁记录层和设置在基板和磁记录层之间的TiN-X层。 在TiN-X层中，X是包含MgO，TiO，TiO 2，ZrN，ZrO，ZrO 2，HfN，HfO，AlN和Al 2 O 3中的至少一种的掺杂剂。
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Patent Agency Ranking
公开(公告)号：US09263076B1
公开(公告)日：2016-02-16
申请号：US13789326
申请日：2013-03-07
Applicant: Seagate Technology LLC
Inventor： Yingguo Peng , Kai Chieh Chang , Yinfeng Ding , Ganping Ju , Yukiko Kubota , Timothy J. Klemmer , Jan-Ulrich Thiele , Qihong Wu , Xiaobin Zhu
CPC classification number: G11B5/7325 , G11B5/8404
Abstract: A magnetic stack includes a heatsink layer comprising (200) Cu or (200) CuX, a magnetic recording layer, and an interlayer disposed between the heatsink layer and the magnetic recording layer.
Abstract translation: 磁性堆叠包括包含（200）Cu或（200）CuX，磁记录层和布置在散热层和磁记录层之间的中间层的散热层。
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37.发明授权Composite magnetic recording structure for heat assisted magnetic recording device 有权用于热辅助磁记录装置的复合磁记录结构公开(公告)号：US08988976B2
公开(公告)日：2015-03-24
申请号：US14055775
申请日：2013-10-16
Applicant: Seagate Technology LLC
Inventor： Xi Chen , Ganping Ju , Yingguo Peng , Timothy J. Klemmer , Yukiko Kubota , Jan-Ulrich Thiele , David S. Kuo , Kai-Chieh Chang , Kangkang Wang , Li Gao , Yinfeng Ding
CPC classification number: G11B5/66 , G11B5/746 , G11B5/8404 , G11B5/855 , G11B2005/0021
Abstract: The embodiments disclose a patterned composite magnetic layer structure configured to use magnetic materials having differing temperature and magnetization characteristics in a recording device, wherein the patterned composite magnetic layer structure includes magnetic layers, at least one first magnetic material configured to be used in a particular order to reduce a recording temperature and configured to control and regulate coupling and decoupling of the magnetic layers and at least one second magnetic material with differing temperature characteristics is configured to control recording and erasing of data.
Abstract translation: 实施例公开了一种图案化复合磁性层结构，其被配置为使用在记录装置中具有不同温度和磁化特性的磁性材料，其中所述图案化的复合磁性层结构包括磁性层，至少一个第一磁性材料被配置成以特定顺序使用 以降低记录温度并且被配置为控制和调节磁性层的耦合和去耦，并且具有不同温度特性的至少一个第二磁性材料被配置为控制数据的记录和擦除。
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38.发明授权Thin film structure with controlled lateral thermal spreading in the thin film 有权薄膜结构在薄膜中具有受控的横向热扩散公开(公告)号：US08830629B2
公开(公告)日：2014-09-09
申请号：US14060187
申请日：2013-10-22
Applicant: Seagate Technology LLC
Inventor： Julius Kurt Hohlfeld , Bin Lu , Ganping Ju , Amit V. Itagi , Timothy Klemmer , Yingguo Peng , Yukiko Kubota
CPC classification number: G11B5/66 , G11B5/3133 , G11B5/7325 , G11B11/10584 , G11B11/10586 , G11B2005/0005 , G11B2005/0021
Abstract: An apparatus includes a non-metallic interlayer between a magnetic data storage layer and a heat sink layer, wherein interface thermal resistance between the interlayer and the heat sink layer is capable of reducing heat flow between the heat sink layer and the magnetic data storage layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include thermal resistor layer positioned between the interlayer and the heat sink layer.
Abstract translation: 一种装置包括在磁数据存储层和散热层之间的非金属中间层，其中中间层和散热层之间的界面热阻能够减少散热层和磁数据存储层之间的热流。 该装置可以被配置为布置用于数据存储的薄膜结构。 该装置还可以包括位于中间层和散热层之间的热电阻层。
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39.发明申请Thin Film Structure with Controlled Lateral Thermal Spreading in the Thin Film 有权薄膜结构在薄膜中具有受控的横向热传播公开(公告)号：US20140043947A1
公开(公告)日：2014-02-13
申请号：US14060187
申请日：2013-10-22
Applicant: Seagate Technology LLC
Inventor： Julius Kurt Hohlfeld , Bin Lu , Ganping Ju , Amit V. Itagi , Timothy Klemmer , Yingguo Peng , Yukiko Kubota
IPC: G11B5/66
CPC classification number: G11B5/66 , G11B5/3133 , G11B5/7325 , G11B11/10584 , G11B11/10586 , G11B2005/0005 , G11B2005/0021
Abstract: An apparatus includes a non-metallic interlayer between a magnetic data storage layer and a heat sink layer, wherein interface thermal resistance between the interlayer and the heat sink layer is capable of reducing heat flow between the heat sink layer and the magnetic data storage layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include thermal resistor layer positioned between the interlayer and the heat sink layer.
Abstract translation: 一种装置包括在磁数据存储层和散热层之间的非金属中间层，其中中间层和散热层之间的界面热阻能够减少散热层和磁数据存储层之间的热流。 该装置可以被配置为布置用于数据存储的薄膜结构。 该装置还可以包括位于中间层和散热层之间的热电阻层。
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公开(公告)号：US20240331728A1
公开(公告)日：2024-10-03
申请号：US18437449
申请日：2024-02-09
Applicant: Seagate Technology LLC
Inventor： Wei-Heng HSU , Yingguo Peng , Pin-Wei Huang , Kai Chieh Chang , Ganping Ju
CPC classification number: G11B5/7375 , G11B5/66 , G11B2005/0021
Abstract: A data media may generally be configured in accordance with various embodiments with contactingly adjacent first and second heatsink layers that are tuned with a common crystallographic orientation and with different thermal conductivities to provide a predetermined thermal gradient. The data media may further be configured with a recording layer formed with the common crystallographic orientation adjacent the first and second heatsink layers.
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