中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

48 records (took 0.016 seconds)

    WRITE HEAD HAVING BEVELED NON-MAGNETIC WRITE GAP SEED LAYER
    21.
    发明申请
    WRITE HEAD HAVING BEVELED NON-MAGNETIC WRITE GAP SEED LAYER 有权
    具有非磁性写入间隙层的写头

    公开(公告)号：US20150371668A1

    公开(公告)日：2015-12-24

    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

    IPC: G11B5/235 ,  G11B5/60

    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.

    Abstract translation: 一种装置具有磁性材料的主极层，第二层磁性材料，主磁极层和第二磁性材料层之间的非磁性材料的第一间隙层和非磁性材料的第二间隙层 设置在主极层和第二磁性材料层之间。 非磁性材料的第二间隙层可以直接邻近第二层磁性材料。 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。 还描述了制造这种装置的方法。

    WRITE POLE WITH VARYING BEVEL ANGLES
    22.
    发明申请
    WRITE POLE WITH VARYING BEVEL ANGLES 有权
    具有变化水平角的写入点

    公开(公告)号：US20150103439A1

    公开(公告)日：2015-04-16

    申请号：US14052300

    申请日：2013-10-11

    Applicant: Seagate Technology LLC

    Inventor： Huaqing Yin ,  Wei Tian ,  Zhe Shen ,  Kirill Rivkin ,  Jianhua Xue

    IPC: G11B5/187

    CPC classification number: G11B5/1871 ,  G11B5/1278 ,  G11B5/3116

    Abstract: A magnetic element can have at least a write pole configured with a write pole tip that has a tip surface oriented at a first angle with respect to an air bearing surface (ABS), a first bevel surface extending from the ABS and oriented at a second angle with respect to the ABS, and a second bevel surface extending from the ABS and oriented at a third angle with respect to the ABS. The first, second, and third angles may be configured to be different and non-orthogonal to each other.

    Abstract translation: 磁性元件可以具有至少一个写入极，其配置有写入磁极尖端，所述写入磁极尖端具有相对于空气轴承表面（ABS）以第一角度定向的尖端表面，从ABS延伸并且在第二角度定向的第一斜面 相对于ABS的角度以及从ABS延伸并相对于ABS以第三角度定向的第二斜面。 第一，第二和第三角度可以被配置为彼此不同且非正交。

    TUNNELING MAGNETO-RESISTIVE SENSORS WITH BUFFER LAYERS
    23.
    发明申请
    TUNNELING MAGNETO-RESISTIVE SENSORS WITH BUFFER LAYERS 有权
    具有缓冲层的隧道式电磁感应传感器

    公开(公告)号：US20150097255A1

    公开(公告)日：2015-04-09

    申请号：US14568645

    申请日：2014-12-12

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Bin Lu ,  Qing He ,  Mark Covington ,  Yunhao Xu ,  Wei Tian

    IPC: H01L43/08 ,  H01L43/02

    CPC classification number: H01L43/08 ,  G01R33/098 ,  G11B5/3909 ,  G11B2005/3996 ,  H01L43/02

    Abstract: In certain embodiments, a tunneling magneto-resistive (TMR) sensor includes a sensor stack positioned between a seed layer and a cap layer. The seed layer includes a first buffer layer that includes a non-magnetic nickel alloy.In certain embodiments, a sensor stack includes a top and bottom shield and a seed layer positioned adjacent to the bottom shield. The seed layer has a first buffer layer that includes a nickel alloy.

    Abstract translation: 在某些实施例中，隧道磁阻（TMR）传感器包括位于种子层和覆盖层之间的传感器堆叠。 种子层包括包含非磁性镍合金的第一缓冲层。 在某些实施例中，传感器堆叠包括顶部和底部屏蔽以及邻近底部屏蔽定位的种子层。 种子层具有包括镍合金的第一缓冲层。

    Write Gap Structure for a Magnetic Recording Head
    24.
    发明申请
    Write Gap Structure for a Magnetic Recording Head 有权
    写磁记录头的间隙结构

    公开(公告)号：US20150002963A1

    公开(公告)日：2015-01-01

    申请号：US13930776

    申请日：2013-06-28

    Applicant: Seagate Technology LLC

    Inventor： Wei Tian ,  Huaqing Yin ,  Yan Dong ,  Joseph M. Mundenar ,  Jianhua Xue

    IPC: G11B5/23

    CPC classification number: G11B5/23 ,  G11B5/232 ,  G11B5/3116

    Abstract: The present application relates to a write gap structure for a magnetic recording head. In illustrated embodiments, the write gap structure includes multiple write gap segments along a beveled pole tip surface between a top edge and a bottom edge of the beveled pole tip surface to provide a narrow write gap proximate to the air bearing surface and a larger write gap behind the air bearing surface. In illustrated embodiments, the narrow write gap segment is formed between the beveled pole tip surface and a lower back surface of front shield and the larger write gap is formed between the beveled pole tip surface and an upper back surface of the front shield.

    Abstract translation: 本申请涉及用于磁记录头的写间隙结构。 在示出的实施例中，写间隙结构包括沿着倾斜磁极尖端表面的顶部边缘和底部边缘之间的斜面磁极尖端表面的多个写入间隙段，以提供靠近空气轴承表面的窄写入间隙和更大的写入间隙 在空气轴承表面后面。 在图示的实施例中，狭窄的写入间隙段形成在斜面极尖表面和前屏蔽的下后表面之间，并且较大的写入间隙形成在斜面极尖表面与前屏蔽的上后表面之间。

    Adhesion enhancement of thin film PZT structure
    25.
    发明授权
    Adhesion enhancement of thin film PZT structure 有权
    薄膜PZT结构的附着力增强

    公开(公告)号：US08854772B1

    公开(公告)日：2014-10-07

    申请号：US13886780

    申请日：2013-05-03

    Applicant: Seagate Technology LLC

    Inventor： Dadi Setiadi ,  Wei Tian ,  Young Pil Kim

    IPC: G11B21/24 ,  H01L41/053 ,  G11B5/48 ,  B82Y30/00

    CPC classification number: G11B5/4873 ,  B82Y30/00 ,  G11B5/483 ,  H01L41/0533 ,  H01L41/0815 ,  H01L41/314 ,  H01L41/332 ,  Y10S977/837

    Abstract: A microactuator, for example for a disc drive, comprising a substrate, a sandwich structure on the substrate, and a passivation layer over the substrate and the sandwich structure. The sandwich structure has a bottom electrode formed from noble metal, a piezoelectric layer, and a top electrode formed from noble metal. The microactuator further has one or both of a bottom adhesion layer present between the bottom electrode and the passivation layer, and a top adhesion layer present between the top electrode and the passivation layer. That is, the microactuator may have only the bottom adhesion layer, only the top adhesion layer, or both the bottom adhesion layer and the top adhesion layer.

    Abstract translation: 例如用于盘驱动器的微致动器，包括衬底，衬底上的夹层结构以及衬底上的钝化层和夹层结构。 夹心结构具有由贵金属形成的底部电极，压电层和由贵金属形成的顶部电极。 微致动器还具有存在于底部电极和钝化层之间的底部粘附层中的一个或两个，以及存在于顶部电极和钝化层之间的顶部粘合层。 也就是说，微致动器可以仅具有底部粘附层，仅具有顶部粘附层，或者仅具有底部粘合层和顶部粘合层。

    Method for making a write head for magnetic recording
    27.
    发明授权
    Method for making a write head for magnetic recording 有权

    公开(公告)号：US09972345B1

    公开(公告)日：2018-05-15

    申请号：US14974743

    申请日：2015-12-18

    Applicant: Seagate Technology LLC

    Inventor： Wei Tian ,  Hauqing Yin ,  Lei Lu ,  Yong Luo ,  Joseph Mundenar

    IPC: G11B5/127 ,  G11B5/11

    CPC classification number: G11B5/1272 ,  G11B5/112 ,  G11B5/1278

    Abstract: A method includes depositing a layer of pole material on a substrate. The layer of pole material has a bottom surface that is adjacent to the substrate and a top surface that is opposite the bottom surface. A masking material is deposited over a portion of the top surface. Material from the pole material unprotected by the masking material is removed to form a write pole having first and second side walls. At least a portion of a trench formed by removal of the material from the layer of pole material is filled with a sacrificial material. The mask and a portion of the write pole at the top surface are removed to form a beveled trailing edge surface. The sacrificial material is then removed. Front shield gap material is deposited over the beveled trailing edge surface and over portions of the side walls.

    Selective data writer coil
    28.
    发明授权
    Selective data writer coil 有权

    公开(公告)号：US09805742B1

    公开(公告)日：2017-10-31

    申请号：US15445267

    申请日：2017-02-28

    Applicant: Seagate Technology LLC

    Inventor： Kirill A. Rivkin ,  JianHua Xue ,  Wei Tian ,  Lei Lu ,  Jian Zhong

    IPC: G11B5/09 ,  G11B5/17 ,  G11B5/31

    CPC classification number: G11B5/17 ,  G11B5/012 ,  G11B5/3123

    Abstract: A data writer may be constructed and operated as part of a data storage device. The data writer can be positioned proximal a data storage medium. The data writer may have a write pole positioned adjacent a writer coil with the writer coil having a plurality of turns. A controller that is connected to each turn can be adapted to selectively activate less than all the coil turns in response to the data writer being positioned over a first portion of a data storage medium and selectively activate all of the coil turns in response to the data writer being positioned over a second portion of the data storage medium.

Patent Agency Ranking