公开(公告)号：US09601135B2

公开(公告)日：2017-03-21

申请号：US14607248

申请日：2015-01-28

申请人： SEAGATE TECHNHOLOGY LLC

发明人： Tong Zhao ,  Michael Christopher Kautzky ,  Michael Allen Seigler ,  Yongjun Zhao ,  Jay Jayashankar ,  Xiaoyue Huang

IPC分类号： G11B5/31 ,  G11B5/60 ,  G11B11/105 ,  G11B5/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B11/10536 ,  G11B2005/0021 ,  Y10T428/1157 ,  Y10T428/1171 ,  Y10T428/1193

摘要： A device that includes a near field transducer (NFT); at least one cladding layer adjacent the NFT; and a discontinuous metal layer positioned between the NFT and the at least one cladding layer.

公开(公告)号：US09236068B2

公开(公告)日：2016-01-12

申请号：US14048081

申请日：2013-10-08

申请人： Zhang Kunliang ,  Li Min ,  Zhou Yuchen ,  Zheng Min

发明人： Zhang Kunliang ,  Li Min ,  Zhou Yuchen ,  Zheng Min

IPC分类号： G11B5/127 ,  G11B5/33 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/39 ,  G11B5/31 ,  H01L43/12

CPC分类号： G11B5/332 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/315 ,  G11B5/3909 ,  G11B5/3912 ,  G11B5/3932 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49044 ,  Y10T29/49067 ,  Y10T428/1143 ,  Y10T428/115 ,  Y10T428/1157 ,  Y10T428/1171 ,  Y10T428/1193 ,  Y10T428/12819

摘要： A hard bias (HB) structure for producing longitudinal bias to stabilize a free layer in an adjacent spin valve is disclosed and includes a composite seed layer made of at least Ta and a metal layer having a fcc(111) or hcp(001) texture to enhance perpendicular magnetic anisotropy (PMA) in an overlying (Co/Ni)x laminated layer. The (Co/Ni)x HB layer deposition involves low power and high Ar pressure to avoid damaging Co/Ni interfaces and thereby preserves PMA. A capping layer is formed on the HB layer to protect against etchants in subsequent process steps. After initialization, magnetization direction in the HB layer is perpendicular to the sidewalls of the spin valve and generates an Mrt value that is greater than from an equivalent thickness of CoPt. A non-magnetic metal separation layer may be formed on the capping layer and spin valve to provide an electrical connection between top and bottom shields.

摘要翻译： 公开了用于产生纵向偏压以稳定相邻自旋阀中的自由层的硬偏压（HB）结构，其包括至少由Ta制成的复合晶种层和具有fcc（111）或hcp（001）结构的金属层 以提高上覆（Co / Ni）x叠层的垂直磁各向异性（PMA）。 （Co / Ni）x HB层沉积涉及低功率和高Ar压力，以避免损坏Co / Ni界面，从而保留PMA。 在HB层上形成覆盖层以防止后续工艺步骤中的蚀刻剂。 在初始化之后，HB层中的磁化方向垂直于自旋阀的侧壁，并产生大于CoPt当量厚度的Mrt值。 可以在封盖层和自旋阀上形成非磁性金属分离层，以提供顶部和底部屏蔽之间的电连接。

公开(公告)号：US20150269960A1

公开(公告)日：2015-09-24

申请号：US14733174

申请日：2015-06-08

申请人： HOYA CORPORATION ,  HOYA GLASS DISK (THAILAND) LTD.

发明人： Kenichi NISHIMORI

IPC分类号： G11B5/73 ,  G11B5/725 ,  G11B5/72 ,  G11B5/82

CPC分类号： G11B5/7315 ,  G11B5/72 ,  G11B5/725 ,  G11B5/82 ,  Y10T428/1157

摘要： With regard to a glass substrate 1 according to the present invention, a value of an amendment concentricity AC that has taken into consideration Sk and/or Ku calculated from a shape profile over the whole circumference of an inside hole, or the skewness is within a predetermined range. The glass substrate for a magnetic recording medium can stably read servo information including track information stored on a magnetic disk when the glass substrate is used for an HDD.

公开(公告)号：US20140063647A1

公开(公告)日：2014-03-06

申请号：US13605934

申请日：2012-09-06

申请人： Norihiro Okawa ,  Koji Sakamoto ,  Koji Okazaki

发明人： Norihiro Okawa ,  Koji Sakamoto ,  Koji Okazaki

IPC分类号： G11B5/33 ,  G11B21/02 ,  B82Y30/00

CPC分类号： G11B5/3932 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/1278 ,  G11B5/3163 ,  H01F10/3254 ,  Y10T428/11 ,  Y10T428/1157 ,  Y10T428/1171

摘要： In one embodiment, a magnetic head includes a sensor stack of thin films including a free layer; a hard bias structure comprising a first foundation layer, a second foundation layer formed on the first foundation layer and a hard bias layer formed above the second foundation layer, wherein portions of the first and second foundation layers positioned along a side wall of the sensor stack have a discrete island structure. Additional embodiments are also disclosed.

摘要翻译： 在一个实施例中，磁头包括包括自由层的薄膜的传感器堆叠; 包括第一基础层，形成在第一基础层上的第二基础层和形成在第二基础层上方的硬偏置层的硬偏压结构，其中第一和第二基础层沿传感器堆叠的侧壁定位的部分 具有离散的岛结构。 还公开了另外的实施例。

公开(公告)号：US08110516B2

公开(公告)日：2012-02-07

申请号：US12623980

申请日：2009-11-23

申请人： Kei Sugiura ,  Atsushi Hitomi ,  Hiroyuki Ono

发明人： Kei Sugiura ,  Atsushi Hitomi ,  Hiroyuki Ono

IPC分类号： C04B35/117 ,  C04B35/56 ,  G11B5/127

CPC分类号： C04B35/117 ,  C04B35/5603 ,  C04B35/5611 ,  C04B35/62695 ,  C04B35/645 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3234 ,  C04B2235/3843 ,  C04B2235/5445 ,  C04B2235/656 ,  C04B2235/6581 ,  C04B2235/761 ,  C04B2235/80 ,  Y10T428/1157

摘要： An object is to provide a sintered body having a sufficiently higher polishing rate than a conventional AlTiC sintered body and providing a sufficiently smooth air bearing surface. The sintered body according to the present invention consists of Al2O3 and a compound represented by the chemical formula (1) below: TiCxOy  (1) wherein x+y≦1, x>0 and 0.3

摘要翻译： 目的是提供一种具有比常规AlTiC烧结体足够高的抛光速率并提供足够光滑的空气轴承表面的烧结体。 根据本发明的烧结体由Al2O3和下述化学式（1）表示的化合物组成：TiC x O y（1）其中x + y和nlE; 1，x> 0和0.3

公开(公告)号：US07910181B2

公开(公告)日：2011-03-22

申请号：US12214578

申请日：2008-06-19

申请人： Patricia A. Beck ,  Sean Zhang

发明人： Patricia A. Beck ,  Sean Zhang

IPC分类号： C09K19/00

CPC分类号： G11B7/244 ,  C08G61/02 ,  C08G61/10 ,  C08G61/123 ,  C08G73/18 ,  C08G73/22 ,  C08J3/24 ,  G02F1/15 ,  G11B7/245 ,  G11B7/246 ,  G11B7/249 ,  G11B7/25 ,  Y10T428/1005 ,  Y10T428/1009 ,  Y10T428/1041 ,  Y10T428/1082 ,  Y10T428/1157 ,  Y10T428/2809

摘要： Various embodiments of the present invention are directed to methods for manufacturing complex, anisotropic materials with desirable properties for information storage, processing, and display. Certain of these methods involve employing a magnetic field during manufacture to induce desired orientations of precursors, subunits, and/or molecular subassemblies. The applied magnetic field steers the precursors, subunits, and/or molecular subassemblies into desirable orientations while the precursors, subunits, and/or molecular subassemblies are assembled or self-assemble into a complex, anisotropic material. One embodiment of the present invention is a class of new, complex, well-ordered, network-like materials that include a ferromagnetic-material-based framework in which organic and/or organometallic compounds are organized. The ferromagnetic-molecule-based framework provides a scaffold for assembling the stable, precisely separated layers of organic and/or organometallic compounds and maintaining the layers of organic and/or organometallic compounds in well-ordered, anisotropic arrangements. Additional embodiments of the present invention are directed to methods for manufacturing the new ferromagnetic-molecule-based, network-like materials.

摘要翻译： 本发明的各种实施方案涉及用于制造具有用于信息存储，处理和显示的所需特性的复杂的各向异性材料的方法。 这些方法中的某些涉及在制造过程中采用磁场来诱导前体，亚基和/或分子子组件的所需取向。 施加的磁场将前体，亚基和/或分子子组件转向所需的取向，同时将前体，亚基和/或分子子组件组装或自组装成复杂的各向异性材料。 本发明的一个实施方案是一类新的，复杂的，有序的网状材料，其包括其中组织有机和/或有机金属化合物的基于铁磁材料的框架。 基于铁磁分子的框架提供了用于组装稳定且精确分离的有机和/或有机金属化合物层的支架，并且将有机和/或有机金属化合物层保持在有秩序的各向异性布置中。 本发明的另外的实施方案涉及用于制造新的基于铁磁分子的网络状材料的方法。

公开(公告)号：US20100143749A1

公开(公告)日：2010-06-10

申请号：US12443212

申请日：2007-03-30

申请人： Shigeki Mori ,  Yusuke Hara ,  Shinzo Mitomi ,  Hidetaka Sakumichi

发明人： Shigeki Mori ,  Yusuke Hara ,  Shinzo Mitomi ,  Hidetaka Sakumichi

IPC分类号： G11B5/33 ,  C04B35/49

CPC分类号： G11B5/102 ,  B82Y30/00 ,  C01G23/002 ,  C01G23/047 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2006/42 ,  C01P2006/80 ,  C04B35/117 ,  C04B35/58021 ,  C04B35/6261 ,  C04B35/62675 ,  C04B35/6268 ,  C04B35/62695 ,  C04B35/62836 ,  C04B35/6325 ,  C04B35/63476 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3232 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3856 ,  C04B2235/3886 ,  C04B2235/3895 ,  C04B2235/441 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/6565 ,  C04B2235/6581 ,  C04B2235/664 ,  C04B2235/72 ,  C04B2235/761 ,  C04B2235/785 ,  C04B2235/80 ,  C04B2235/9607 ,  C04B2235/963 ,  G11B5/187 ,  Y10T428/1157

摘要： Disclosed is a substrate material for an AlTiC-based magnetic head, which is excellent in ultra-low flying-related properties as a material for a magnetic head, such as a TPC or AAB type for use as a thin-film magnetic head slider for HDD devices and a thin-film magnetic head for tape recording devices, where a flying height between a magnetic head element and a recording medium is extremely reduced, and usable in perpendicular recording heads, HAMR heads or the like. The magnetic head substrate material consists of a sintered body which contains 10 to 50 mass % of TiCxOyNz (wherein: 0.70≦x

摘要翻译： 公开了一种用于基于AlTiC的磁头的基板材料，其作为用于磁头的材料的超低飞行相关性能优异，例如用作薄膜磁头滑块的TPC或AAB型 HDD装置和用于磁带记录装置的薄膜磁头，其中磁头元件和记录介质之间的飞行高度极大地减小，并且可用于垂直记录头，HAMR头等。 磁头基板材料由含有10〜50质量％的TiC x O y N z的烧结体组成，其中：0.70≤n1E; x <1.0; 0

公开(公告)号：US20100091404A1

公开(公告)日：2010-04-15

申请号：US12642708

申请日：2009-12-18

申请人： Yucong WANG ,  Shuji Nakazawa ,  Yuuya Nakao ,  Takuya Gentsu ,  Nobuyuki Horiuchi

发明人： Yucong WANG ,  Shuji Nakazawa ,  Yuuya Nakao ,  Takuya Gentsu ,  Nobuyuki Horiuchi

IPC分类号： G11B5/60 ,  G11B5/127

CPC分类号： G11B5/3106 ,  G11B5/102 ,  G11B5/3173 ,  G11B5/40 ,  G11B5/6011 ,  Y10T428/1157

摘要： A substrate for a magnetic read/write head is disclosed. The substrate can reduce detachment of crystal grains when the substrate is machined. The substrate may be machined when the substrate is cut into strips or a flow path surface recess is formed to produce the magnetic read/write head. The reduced detachment of crystal grains makes the magnetic read/write head more resilient to chipping, which allows the magnetic read/write head to have a lower and more stable flying height that increases recording density.

摘要翻译： 公开了一种用于磁读/写头的衬底。 当加工衬底时，衬底可以减少晶粒的分离。 当衬底被切割成条带时或者形成流路表面凹部以产生磁读/写头时，可以对衬底进行加工。 晶粒的分离减少使得磁读/写头对切屑更具弹性，这使得磁读/写头具有更低和更稳定的飞行高度，从而提高了记录密度。

公开(公告)号：US07414002B2

公开(公告)日：2008-08-19

申请号：US11289801

申请日：2005-11-29

申请人： Minoru Nakasuga ,  Kazuhide Kusano

发明人： Minoru Nakasuga ,  Kazuhide Kusano

IPC分类号： C04B35/117 ,  C04B35/58 ,  G11B5/127

CPC分类号： C04B35/117 ,  C04B35/6261 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3418 ,  C04B2235/3886 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/658 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/963 ,  G11B5/3106 ,  G11B5/40 ,  G11B5/6005 ,  Y10T428/1157 ,  Y10T428/1193

摘要： The present invention provides an aluminum oxide-titanium nitride sintered body having good resistance to electrostatic damage and small variation in volume resistivity. The aluminum oxide-titanium nitride sintered body is mainly composed of 65 to 85% by weight of aluminum oxide and titanium nitride constituting the rest. The average of the sum of the crystal grain sizes of the aluminum oxide and the titanium nitride is 0.4 to 2.0 μm. The aluminum oxide has a mean crystal grain size of 0.5 to 2.2 μm and the titanium nitride has a mean crystal grain size of 0.2 to 1.6 μm.

摘要翻译： 本发明提供了具有良好的抗静电损伤性和体积电阻率变化小的氧化铝 - 氮化钛烧结体。 氧化铝 - 氮化钛烧结体主要由65〜85重量％的氧化铝和构成其余部分的氮化钛构成。 氧化铝和氮化钛​​的晶粒尺寸之和的平均值为0.4〜2.0μm。 氧化铝的平均结晶粒径为0.5〜2.2μm，氮化钛的平均结晶粒径为0.2〜1.6μm。

公开(公告)号：US20080102317A1

公开(公告)日：2008-05-01

申请号：US11973598

申请日：2007-10-09

申请人： Shoji IKEDA ,  Takayuki KUBOMIYA ,  Masaaki MATSUOKA

发明人： Shoji IKEDA ,  Takayuki KUBOMIYA ,  Masaaki MATSUOKA

IPC分类号： G11B5/33

CPC分类号： G11B5/3146 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/3109 ,  G11B5/3116 ,  H01F10/14 ,  H01F10/3236 ,  H01F10/325 ,  Y10T428/1121 ,  Y10T428/115 ,  Y10T428/1157 ,  Y10T428/1171 ,  Y10T428/1193 ,  Y10T428/24992

摘要： The magnetic film includes an FeCo layer, restrains erasing data by a magnetic field leaked from a magnetic pole, has high saturation magnetic flux density and soft magnetism and writes data with high recording density. The magnetic film for a magnetic head of the present invention comprises: a nonmagnetic layer including at least one selected from a group of Ru, Rh, Ir, Cr, Cu, Au, Ag, Pt and Pd; a magnetic layer including Fe and Co. Anisotropy magnetic field is 0.8 kA/m or more.