公开(公告)号：US09336832B1

公开(公告)日：2016-05-10

申请号：US14720250

申请日：2015-05-22

Applicant: Seagate Technology LLC

Inventor： Kangkang Wang ,  Xiaobin Zhu ,  Ganping Ju ,  Kai Chieh Chang ,  Yingguo Peng ,  Timothy J. Klemmer ,  Jan-Ulrich Thiele

IPC: G11B11/00 ,  G11B27/36 ,  G11B5/024 ,  G11B5/09 ,  G11B5/00

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。

公开(公告)号：US20160064022A1

公开(公告)日：2016-03-03

申请号：US14839441

申请日：2015-08-28

Applicant: Seagate Technology LLC

Inventor： Jan-Ulrich Thiele ,  Yinfeng Ding ,  YingGuo Peng ,  Kai-Chieh Chang ,  Timothy John Klemmer ,  Li Gao ,  Yukiko Kubota ,  Ganping Ju

IPC: G11B5/65 ,  C22C5/04 ,  G11B5/667

CPC classification number: G11B5/653 ,  C22C5/04 ,  G11B5/66 ,  G11B2005/0021

Abstract: In some embodiments, a thermally assisted data recording medium has a recording layer formed of iron (Fe), platinum (Pt) and a transition metal T selected from a group consisting of Rhodium (Rh), Ruthenium (Ru), Osmium (Os) and Iridium (Ir) to substitute for a portion of the Pt content as FeYPtY-XTX with Y in the range of from about 20 at % to about 80 at % and X in the range of from about 0 at % to about 20 at %.

Abstract translation: 在一些实施方案中，热辅助数据记录介质具有由铁（Fe），铂（Pt）和过渡金属T形成的记录层，其选自铑（Rh），钌（Ru），锇（Os） 和铱（Ir）代替一部分Pt含量作为FeYPtY-XTX，Y在约20at％至约80at％的范围内，X在约0at％至约20at％的范围内 。

公开(公告)号：US20150017482A1

公开(公告)日：2015-01-15

申请号：US14055799

申请日：2013-10-16

Applicant: Seagate Technology LLC

Inventor： Kim Y. Lee ,  Ganping Ju ,  Chubing Peng ,  Xiaobin Zhu ,  Yingguo Peng ,  Yukiko A. Kubota ,  Timothy J. Klemmer ,  Jan-Ulrich Thiele ,  Michael A. Seigler ,  Werner Scholz ,  David S. Kuo ,  Koichi Wago ,  Thomas P. Nolan

IPC: G11B5/72 ,  G11B5/74 ,  G11B5/84

CPC classification number: G11B5/746 ,  G11B5/855

Abstract: The embodiments disclose a plasmonic cladding structure including at least one conformal plasmonic cladding structure wrapped around plural stack features of a recording device, wherein the conformal plasmonic cladding structure is configured to create a near-field transducer in close proximity to a recording head of the recording device, at least one conformal plasmonic cladding structure with substantially removed top surfaces of the stack features with exposed magnetic layer materials and a thermally insulating filler configured to be located between the stack features.

Abstract translation: 这些实施例公开了一种等离子体激元包层结构，其包括缠绕在记录装置的多个堆叠特征上的至少一个共形等离子体激元包层结构，其中该共形等离子体激元包层结构被配置为在接近记录头的记录头处产生近场换能器 至少一个保形等离子体激元包层结构，其具有暴露的磁性层材料的堆叠特征的基本上去除的顶表面，以及被配置为位于堆叠特征之间的隔热填料。

公开(公告)号：US20150016237A1

公开(公告)日：2015-01-15

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 A. Kubota ,  Jan-Ulrich Thiele ,  David S. Kuo ,  Kai-Chieh Chang ,  Kangkang Wang ,  Li Gao ,  Yinfeng Ding

IPC: G11B5/74 ,  G11B5/84 ,  G11B13/04

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。

公开(公告)号：US20150013946A1

公开(公告)日：2015-01-15

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。

公开(公告)号：US20140093748A1

公开(公告)日：2014-04-03

申请号：US14035931

申请日：2013-09-24

Applicant: Seagate Technology LLC

Inventor： Jingsheng Chen ,  Huihui Li ,  Ganping Ju ,  Yingguo Peng

IPC: G11B5/738 ,  C23C14/08 ,  C23C14/06 ,  C23C14/14

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。

公开(公告)号：US11963464B2

公开(公告)日：2024-04-16

申请号：US17181365

申请日：2021-02-22

Applicant: Seagate Technology LLC

Inventor： Cheng Wang ,  Pin-Wei Huang ,  Ganping Ju ,  Kuo-Hsing Hwang

IPC: H10N50/85 ,  H10B61/00 ,  H10N50/10 ,  H10N50/80

CPC classification number: H10N50/85 ,  H10B61/00 ,  H10B61/10 ,  H10N50/10 ,  H10N50/80

Abstract: A memristor may include an exchange-coupled composite (ECC) portion to provide three or more nonvolatile magneto-resistive states. The ECC portion may include a continuous layer and a granular layer magnetically exchange coupled to the continuous layer. A plurality of memristors may be used in a system to, for example, define a neural network.

公开(公告)号：US20210175417A1

公开(公告)日：2021-06-10

申请号：US17181365

申请日：2021-02-22

Applicant: Seagate Technology LLC

Inventor： Cheng Wang ,  Pin-Wei Huang ,  Ganping Ju ,  Kuo-Hsing Hwang

IPC: H01L43/10 ,  H01L43/02 ,  H01L27/22 ,  H01L43/08

Abstract: A memristor may include an exchange-coupled composite (ECC) portion to provide three or more nonvolatile magneto-resistive states. The ECC portion may include a continuous layer and a granular layer magnetically exchange coupled to the continuous layer. A plurality of memristors may be used in a system to, for example, define a neural network.

公开(公告)号：US10134446B1

公开(公告)日：2018-11-20

申请号：US15918269

申请日：2018-03-12

Applicant: Seagate Technology LLC

Inventor： Kangkang Wang ,  Xiaobin Zhu ,  Ganping Ju ,  Kai Chieh Chang ,  Yingguo Peng ,  Timothy J. Klemmer ,  Jan-Ulrich Thiele ,  Pin-Wei Huang

IPC: G11B27/36 ,  G11B7/1267 ,  G11B5/024 ,  G11B5/09 ,  G11B7/1263 ,  G11B5/455 ,  G01R33/032 ,  G11B5/00

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 determine an anisotropy parameter using the read signal. The apparatus can further comprise a Kerr sensor that generates a Kerr signal using the magnetic pattern.

公开(公告)号：US09984709B1

公开(公告)日：2018-05-29

申请号：US15466798

申请日：2017-03-22

Applicant: Seagate Technology LLC

Inventor： Pin-Wei Huang ,  YinFeng Ding ,  YingGuo Peng ,  Xiaobin Zhu ,  Kai-Chieh Chang ,  Yukiko Kubota ,  Timothy J. Klemmer ,  QiHong Wu ,  Ganping Ju ,  Jan-Ulrich Thiele ,  Florin Zavaliche

IPC: G11B11/00 ,  G11B5/66 ,  G11B5/65 ,  G11B5/00 ,  G11B7/126 ,  G11B5/60

CPC classification number: G11B5/66 ,  G11B5/6088 ,  G11B7/126 ,  G11B2005/0021

Abstract: An apparatus is disclosed. The apparatus includes a storage layer, a thermal exchange control layer disposed over the storage layer, and a write layer disposed over the thermal exchange control layer. A Curie temperature of the thermal exchange control layer is lower than a Curie temperature of the storage layer. The Curie temperature of the thermal exchange control layer is lower than a Curie temperature of the write layer.