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    Solid state microwave generator
    1.
    发明授权
    Solid state microwave generator 有权

    公开(公告)号：US10601368B2

    公开(公告)日：2020-03-24

    申请号：US15237081

    申请日：2016-08-15

    Applicant: Seagate Technology LLC

    Inventor： Bin Lu

    IPC: H03B15/00 ,  H03B5/00

    Abstract: A spin torque oscillation generator includes a spin reference layer and a spin oscillation layer. The spin reference layer has a first magnetization direction. The spin reference layer is configured to receive a current and generate a spin-polarized current. The spin oscillation layer has a second magnetization direction. The second magnetization direction is different than the first magnetization direction. The spin oscillation layer is configured to receive the spin-polarized current from the spin reference layer. The spin-polarized current generates a spin torque based on the second magnetization direction of the spin oscillation layer. The spin torque generates a spin torque output signal.

    Magnetic flux barrier
    3.
    发明授权
    Magnetic flux barrier 有权

    公开(公告)号：US09171555B2

    公开(公告)日：2015-10-27

    申请号：US14615940

    申请日：2015-02-06

    Applicant: Seagate Technology LLC

    Inventor： Eric Meloche ,  Bin Lu ,  Lixin Jia ,  Jianhua Xue ,  John David Westwood ,  Mark Anthony Gubbins ,  Alexandru Cazacu

    IPC: G11B5/33 ,  G11B5/11 ,  G11B5/127 ,  G11B5/31

    CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

    Abstract: Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.

    METHOD OF FABRICATION OF AN ANISOTROPY MAGNETIC LAYER OF A PATTERNED STACK
    4.
    发明申请
    METHOD OF FABRICATION OF AN ANISOTROPY MAGNETIC LAYER OF A PATTERNED STACK 有权
    方形堆叠的各向异性磁体层的制造方法

    公开(公告)号：US20150017483A1

    公开(公告)日：2015-01-15

    申请号：US14062776

    申请日：2013-10-24

    Applicant: Seagate Technology LLC

    Inventor： Michael R. Feldbaum ,  Wago Wago ,  Bin Lu ,  David S. Kuo

    IPC: G11B5/74 ,  H01F10/26

    CPC classification number: G11B5/746 ,  G11B5/855 ,  H01F10/123 ,  H01F41/34

    Abstract: Provided herein is a method including oxidizing tops of features of a patterned magnetic layer to form oxidized tops of the features; removing an excess of an applied first protective material down to at least the oxidized tops of the features to form a planarized layer; and applying a second protective material over the planarized layer.

    Abstract translation: 本文提供了一种方法，包括使图案化磁性层的特征的顶部氧化以形成特征的氧化顶部; 将过量的所施加的第一保护材料除去至少所述特征的氧化顶部以形成平坦化层; 以及在所述平坦化层上施加第二保护材料。

    Solid state microwave generator
    7.
    发明授权
    Solid state microwave generator 有权

    公开(公告)号：US10110165B2

    公开(公告)日：2018-10-23

    申请号：US15276802

    申请日：2016-09-27

    Applicant: Seagate Technology LLC

    Inventor： Bin Lu

    IPC: G01R33/09 ,  H03B15/00 ,  H03L7/26 ,  H03B5/00 ,  G01R33/02

    Abstract: An apparatus includes a spin torque oscillator, a sensor, and a processing unit. The spin torque oscillator is configured to receive a current and to generate a microwave output signal. The sensor is configured to detect the microwave output signal and to detect changes to frequency of the detected microwave output signal responsive to changes in an external magnetic field. The processing unit is configured to receive a sensed signal from the sensor. The processing unit is further configured to process the sensed signal and the changes to the frequency to determine magnitude and direction associated with the external magnetic field.

    Perpendicular magnetic recording with multiple antiferromagnetically coupled layers
    8.
    发明授权
    Perpendicular magnetic recording with multiple antiferromagnetically coupled layers 有权

    公开(公告)号：US09990951B2

    公开(公告)日：2018-06-05

    申请号：US15150378

    申请日：2016-05-09

    Applicant: Seagate Technology LLC

    Inventor： Bin Lu

    IPC: G11B5/66 ,  G11B5/667

    CPC classification number: G11B5/66 ,  G11B5/667 ,  G11B5/855

    Abstract: Provided herein is an apparatus including a top continuous layer and a bottom continuous layer under the top continuous layer. The top continuous layer and the bottom continuous layer are antiferromagnetically coupled. A number of granular columns are under the bottom continuous layer. The number of granular columns include at least a first granular layer under the bottom continuous layer and a second granular layer also under the first granular layer. The first granular layer and the second granular layer are separated by a non-magnetic spacer. The first granular layer and the second granular layer are ferromagnetically coupled. The first granular layer is antiferromagnetically coupled to the bottom continuous layer.

    Reduced spacing recording apparatus
    9.
    发明授权
    Reduced spacing recording apparatus 有权
    缩小间距记录装置

    公开(公告)号：US09299379B2

    公开(公告)日：2016-03-29

    申请号：US14161607

    申请日：2014-01-22

    Applicant: Seagate Technology LLC

    Inventor： Kaizhong Gao ,  Bin Lu ,  Bogdan Florin Valcu ,  Xiaoding Ma

    IPC: G11B5/66 ,  G11B5/667 ,  G11B5/72

    CPC classification number: G11B5/72 ,  G11B5/66 ,  G11B5/667 ,  Y10T428/1164

    Abstract: Aspects include recording media with enhanced areal density through reduction of head media spacing, head keeper spacing, or head to soft underlayer spacing. Such aspects comprise replacing currently non-magnetic components of devices, such as interlayers and overcoats with components and compositions comprising magnetic materials. Other aspects relate to magnetic seed layers deposited within a recording medium. Preferably, these aspects, embodied as methods, systems and/or components thereof reduce effective magnetic spacing without sacrificing physical spacing.

    Abstract translation: 方面包括通过减少头部介质间距，头部保持器间距或头部到软下层间距来增加面密度的记录介质。 这些方面包括用包括磁性材料的组件和组合物替换装置的当前非磁性部件，例如中间层和外涂层。 其他方面涉及沉积在记录介质中的磁性种子​​层。 优选地，体现为方法，系统和/或组件的这些方面减少了有效的磁间距，而不牺牲物理间距。

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