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    Granularity in overlying magnetic and non-magnetic layers
    41.
    发明授权
    Granularity in overlying magnetic and non-magnetic layers 有权

    公开(公告)号：US10373637B2

    公开(公告)日：2019-08-06

    申请号：US15448514

    申请日：2017-03-02

    Applicant: Seagate Technology LLC

    Inventor： Bin Lu ,  Jan-Ulrich Thiele ,  Ganping Ju ,  Xiaoding Ma ,  YingGuo Peng ,  YinFeng Ding

    IPC: G11B5/66 ,  G11B5/65 ,  G11B5/00 ,  B32B15/04

    Abstract: Provided herein is an apparatus including a layer stack. A first granular metal layer overlies the layer stack, wherein the first granular metal layer includes first metal grains separated by voids. A first granular non-metal layer overlies the first granular metal layer, wherein the first granular non-metal layer includes first non-metal grains separated by a first segregant. A second granular non-metal layer overlies the first granular non-metal layer, wherein the second granular non-metal layer includes second non-metal grains separated by a second segregant. A second granular metal layer overlies the second granular non-metal layer, wherein the second granular metal layer includes second metal grains separated by a third segregant.

    Magneto optic kerr effect magnetometer for ultra-high anisotropy magnetic measurements
    46.
    发明授权
    Magneto optic kerr effect magnetometer for ultra-high anisotropy magnetic measurements 有权
    用于超高各向异性磁测量的磁光克尔效应磁力计

    公开(公告)号：US09348000B1

    公开(公告)日：2016-05-24

    申请号：US13836466

    申请日：2013-03-15

    Applicant: Seagate Technology LLC

    Inventor： Jason L. Pressesky ,  Ganping Ju

    IPC: G01R33/032

    CPC classification number: G01R33/0325

    Abstract: A resistive electromagnet assembly comprises a pair of coils with a gap defined between the coils. The resistive electromagnet assembly is configured to generate a field having a magnetic flux density of at least about 4 Tesla and at a sweep rate to complete a hysteresis loop in less than about 1 minute. A support assembly is configured to support a sample of magnetic material within the gap. An optics module is configured to expose a test region of the magnetic material sample to an optical beam probe while the test region is subjected to the field and to receive a reflected beam from the test region. A processor is coupled to the optics module and configured to measure one or more properties of the magnetic material using the received reflected beam.

    Abstract translation: 电阻式电磁铁组件包括一对在线圈之间具有间隙的线圈。 电阻电磁体组件被配置为产生具有至少约4特斯拉的磁通密度并且以扫描速率在小于约1分钟内完成磁滞回线的磁场。 支撑组件被配置成支撑间隙内的磁性材料样品。 光学模块被配置为当测试区域经受场并且接收来自测试区域的反射光束时，将磁性材料样品的测试区域暴露于光束探针。 处理器耦合到光学模块并被配置为使用所接收的反射光束来测量磁性材料的一个或多个特性。

    Template-based magnetic grain-nucleation sites on seed layer
    47.
    发明授权
    Template-based magnetic grain-nucleation sites on seed layer 有权
    种子层上基于模板的磁性颗粒成核位点

    公开(公告)号：US09245566B2

    公开(公告)日：2016-01-26

    申请号：US14154018

    申请日：2014-01-13

    Applicant: Seagate Technology LLC

    Inventor： Shuaigang Xiao ,  Thomas Young Chang ,  Yingguo Peng ,  David S. Kuo ,  Kaizhong Gao ,  Thomas P. Nolan ,  Ganping Ju

    IPC: G11B5/66 ,  G11B5/73 ,  G11B5/855 ,  G11B5/84

    CPC classification number: G11B5/7325 ,  G11B5/84 ,  G11B5/855

    Abstract: A perpendicular magnetic media includes a substrate, a patterned template, a seed layer and a magnetic layer. The patterned template is formed on the substrate and includes a plurality of growth sites that are evenly spaced apart from each other. The seed layer is formed over the patterned template and the exposed areas of the substrate. Magnetic material is sputter deposited onto the seed layer with one grain of the magnetic material nucleated over each of the growth sites. The grain size distribution of the magnetic material is reduced by controlling the locations of the growth sites which optimizes the performance of the perpendicular magnetic media.

    Abstract translation: 垂直磁性介质包括衬底，图案化模板，种子层和磁性层。 图案化模板形成在基板上并且包括彼此均匀间隔开的多个生长位点。 种子层形成在图案化模板和基板的暴露区域上。 将磁性材料溅射沉积到种子层上，其中一颗磁性材料成核在每个生长位点上。 通过控制优化垂直磁性介质性能的生长部位的位置来减小磁性材料的粒度分布。

    Patterned heat sink layer for eliminating lateral thermal bloom
    48.
    发明授权
    Patterned heat sink layer for eliminating lateral thermal bloom 有权
    图案散热层，用于消除横向热辐射

    公开(公告)号：US09207024B2

    公开(公告)日：2015-12-08

    申请号：US14055768

    申请日：2013-10-16

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Ganping Ju ,  Xiaobin Zhu ,  Chubing Peng ,  Yukiko A. Kubota ,  Yingguo Peng ,  Timothy J. Klemmer ,  Jan-Ulrich Thiele ,  David S. Kuo ,  Bin Lu ,  Julius K. Hohlfeld

    IPC: F28F3/08

    CPC classification number: F28F3/08 ,  F28F13/00 ,  G11B5/7325 ,  G11B5/855 ,  G11B2005/0021

    Abstract: The embodiments disclose at least one predetermined patterned layer configured to eliminate a physical path of lateral thermal bloom in a recording device, at least one gradient layer coupled to the patterned layer and configured to use materials with predetermined thermal conductivity for controlling a rate of dissipation and a path coupled to the gradient layer and configured to create a path of least thermal conduction resistance for directing dissipation along the path, wherein the path substantially regulates and prevents lateral thermal bloom.

    Abstract translation: 这些实施例公开了至少一个预定图案层，其被配置为消除记录装置中的横向热绽放的物理路径，耦合到图案化层的至少一个梯度层，并且被配置为使用具有预定热导率的材料来控制散热速率， 路径，其耦合到所述梯度层并且被配置为创建用于沿着所述路径引导耗散的最小导热电阻的路径，其中所述路径基本上调节并防止横向热辐射。

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