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    Method for manufacturing magnetic media with textured CSS landing zone formed by ion implantation, and media obtained thereby
    1.
    发明授权
    Method for manufacturing magnetic media with textured CSS landing zone formed by ion implantation, and media obtained thereby 失效
    用于制造通过离子注入形成的具有纹理的CSS着陆区的磁性介质的方法，以及由此获得的介质

    公开(公告)号：US06656614B1

    公开(公告)日：2003-12-02

    申请号：US09986085

    申请日：2001-11-07

    申请人： Xinwei Li ,  Xiaoding Ma ,  Huan Tang ,  Jing Gui

    发明人： Xinwei Li ,  Xiaoding Ma ,  Huan Tang ,  Jing Gui

    IPC分类号： G11B566

    CPC分类号： G11B5/82 ,  G11B5/8404 ,  Y10S428/90

    摘要： A method of texturing the surface of a CSS/landing zone of a substrate for a magnetic recording medium, comprising steps of: (a) providing a disk-shaped substrate having a surface; (b) providing a patterned mask in overlying relation to the substrate surface, (c) selectively implanting ions in portions of the surface of the CSS/landing zone exposed by the patterned mask openings, whereby the height of the selectively ion-implanted portions is increased or decreased relative to the height of non-ion-implanted portions of the CSS/landing zone to form bumps or depressions, thereby providing the surface of the CSS/landing zone with a texture for reducing stiction and friction when the medium is used with a low flying height read/write transducer. Embodiments of the invention include hard disk magnetic recording media with textured CSS/landing zones produced by the inventive ion implation methodology.

    摘要翻译： 一种纹理化用于磁记录介质的衬底的CSS /着陆区的表面的方法，包括以下步骤：（a）提供具有表面的盘形衬底;（b）提供图案化掩模， 衬底表面，（c）在由图案化掩模开口暴露的CSS /着陆区的表面的部分中选择性地注入离子，由此，选择性离子注入部分的高度相对于非离子注入部分的高度增加或减小， CSS /着陆区的植入部分形成凸起或凹陷，从而为介质与低飞行高度读/写换能器一起使用时提供CSS /着陆区的表面，以减少静摩擦和摩擦。 本发明包括通过本发明的离子注入方法产生的具有纹理CSS /着陆区的硬盘磁记录介质。

    Granular magnetic recording media with improved corrosion resistance by pre-carbon overcoat ion etching
    2.
    发明申请
    Granular magnetic recording media with improved corrosion resistance by pre-carbon overcoat ion etching 审中-公开
    粒状磁记录介质通过预碳涂层离子蚀刻具有改善的耐腐蚀性

    公开(公告)号：US20050181239A1

    公开(公告)日：2005-08-18

    申请号：US10776223

    申请日：2004-02-12

    申请人： Xiaoding Ma ,  Michael Stirniman ,  Raj Thangaraj ,  Jing Gui ,  Tom Nolan ,  Huan Tang

    发明人： Xiaoding Ma ,  Michael Stirniman ,  Raj Thangaraj ,  Jing Gui ,  Tom Nolan ,  Huan Tang

    IPC分类号： B05D5/12 ,  G11B5/64 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/84 ,  G11B5/851 ,  G11B7/24

    CPC分类号： G11B5/84 ,  G11B5/656 ,  G11B5/722 ,  G11B5/725 ,  G11B5/7325 ,  G11B5/8408 ,  G11B5/851

    摘要： A granular longitudinal or perpendicular magnetic recording medium with enhanced corrosion resistance comprises: (a) a non-magnetic substrate having a surface; (b) a layer stack on the substrate surface, including a granular longitudinal or perpendicular magnetic recording layer having a surface distal the substrate surface treated to provide at least one of: (i) a reduction of nano-scale roughness and porosity; (ii) increased compositional homogeneity; (iii) increased microstructural homogeneity; (iv) preferential removal of at least one element; and (v) increased grain boundary coverage by the subsequently deposited protective overcoat layer; and (c) a protective overcoat layer on the treated surface of the granular magnetic recording layer.

    摘要翻译： 具有增强的耐腐蚀性的粒状纵向或垂直磁记录介质包括：（a）具有表面的非磁性基底; （b）衬底表面上的层叠体，包括具有被处理的衬底表面的表面的粒状纵向或垂直磁记录层，以提供以下至少一个：（i）降低纳米级粗糙度和孔隙率; （ii）增加组成均匀性; （iii）显微组织均匀性增加; （iv）优先除去至少一种元素; 和（v）随后沉积的保护性外涂层增加了晶界覆盖度; 和（c）粒状磁记录层的被处理表面上的保护性外涂层。

    Perpendicular magnetic recording media with improved scratch damage performance
    6.
    发明申请
    Perpendicular magnetic recording media with improved scratch damage performance 审中-公开
    垂直磁记录介质具有改善的划痕损伤性能

    公开(公告)号：US20080055777A1

    公开(公告)日：2008-03-06

    申请号：US11515752

    申请日：2006-09-06

    申请人： Shanghsien (Alex) Rou ,  Qixu (David) Chen ,  Raj N. Thangaraj ,  Huan Tang ,  Xinwei Li ,  Jing Gui

    发明人： Shanghsien (Alex) Rou ,  Qixu (David) Chen ,  Raj N. Thangaraj ,  Huan Tang ,  Xinwei Li ,  Jing Gui

    IPC分类号： G11B5/82

    CPC分类号： G11B5/66 ,  G11B5/72

    摘要： A scratch erasure resistant perpendicular magnetic recording medium comprises a non-magnetic substrate having a surface, and a layer stack formed over the surface and comprising: (i) at least one magnetically hard perpendicular magnetic recording layer; and (ii) at least one low shear modulus layer comprising at least one material having a shear modulus not greater than about 30 GPa. Preferably, the at least one magnetically hard perpendicular magnetic recording layer includes at least a first layer comprised of a magnetic material having a hexagonal close packed (hcp) crystal structure and preferred basal plane crystallographic orientation with c-axis perpendicular to a surface thereof.

    摘要翻译： 耐刮擦的垂直磁记录介质包括具有表面的非磁性衬底和形成在表面上的层叠，并且包括：（i）至少一个磁性硬的垂直磁记录层; 和（ii）包含至少一种剪切模量不大于约30GPa的材料的至少一种低剪切模量层。 优选地，至少一个磁性硬的垂直磁记录层至少包括由具有六方密堆积（hcp）晶体结构的磁性材料组成的第一层，以及具有垂直于表面的c轴的优选的基面平面晶体取向 其中。

    Method for making zone-bonded lubricant layer for magnetic hard discs
    7.
    发明申请
    Method for making zone-bonded lubricant layer for magnetic hard discs 审中-公开
    用于制造磁性硬盘的区域粘合润滑剂层的方法

    公开(公告)号：US20050145175A1

    公开(公告)日：2005-07-07

    申请号：US11058955

    申请日：2005-02-15

    申请人： Xiaoding Ma ,  Michael Stirniman ,  Jing Gui

    发明人： Xiaoding Ma ,  Michael Stirniman ,  Jing Gui

    IPC分类号： C08F2/46 ,  C23C14/02 ,  C23C14/12 ,  G11B5/84 ,  C23C16/00

    CPC分类号： C23C14/12 ,  C23C14/022 ,  G11B5/8408

    摘要： A system and method for improving the durability and reliability of recording media used in hard drives is disclosed. A protective overcoat made by depositing a diamond like carbon (DLC) layer over a magnetic layer and then depleting a portion of the DLC protective layer of hydrogen before it is coated with a Perfluoropolyethers (PFPE) using an in-situ vapor lubrication technique. The portion of the DLC layer which is depleted can be data zone of the media so that the lubricant-bonding ratio is higher for the landing zone than it is for the data zone.

    摘要翻译： 公开了一种用于提高在硬盘驱动器中使用的记录介质的耐久性和可靠性的系统和方法。 通过在磁性层上沉积类金刚石（DLC）层，然后在使用原位蒸气润滑技术涂覆全氟聚醚（PFPE）之前耗尽部分DLC保护层氢的保护外涂层。 耗尽的DLC层的部分可以是介质的数据区，使得着陆区的润滑键合比高于数据区。

    Protection overcoat for recording media
    9.
    发明授权
    Protection overcoat for recording media 失效
    保护大衣记录媒体

    公开(公告)号：US06824836B1

    公开(公告)日：2004-11-30

    申请号：US10624488

    申请日：2003-07-23

    申请人： Jing Gui ,  Michael Stirniman ,  Xiaoding Ma

    发明人： Jing Gui ,  Michael Stirniman ,  Xiaoding Ma

    IPC分类号： G11B572

    CPC分类号： G11B5/72 ,  Y10S427/103 ,  Y10T428/24942 ,  Y10T428/265 ,  Y10T428/30

    摘要： A magnetic recording medium comprising a magnetic layer and a protective carbon-containing overcoat comprising a first carbon density, preferably of a low-density carbon, and a second carbon density different from the first carbon density, preferably of a high-density carbon, and a method of making and using the magnetic recording medium are disclosed.

    摘要翻译： 一种包含磁性层和保护性含碳外涂层的磁记录介质，其包含优选低密度碳的第一碳密度和不同于第一碳密度的第二碳密度，优选为高密度碳，以及 公开了制造和使用磁记录介质的方法。

    Magnetic recording medium having a nitrogen-doped hydrogenated carbon protective overcoat
    10.
    发明授权
    Magnetic recording medium having a nitrogen-doped hydrogenated carbon protective overcoat 失效
    具有氮掺杂氢化碳保护外涂层的磁记录介质

    公开(公告)号：US06312798B1

    公开(公告)日：2001-11-06

    申请号：US09400187

    申请日：1999-09-21

    申请人： Xiaoding Ma ,  Kevin J. Grannen ,  Jing Gui ,  Jeffrey A. McCann ,  Mark A. Shows

    发明人： Xiaoding Ma ,  Kevin J. Grannen ,  Jing Gui ,  Jeffrey A. McCann ,  Mark A. Shows

    IPC分类号： G11B572

    CPC分类号： G11B5/72 ,  Y10T428/265 ,  Y10T428/30

    摘要： Ion beam-deposited, nitrogen-doped C:H films having substantially lower resistivities than undoped ion beam-deposited C:H films and suitable for use as hard, abrasion-resistant overcoat layers for magnetic recording media, such as hard disks, are formed by supplying a mixture of hydrocarbon and nitrogen gases to an ion beam generator. Nitrogen atom content of the films is controlled to within from about 5 to about 25 at. % by appropriate selection of the ratio of hydrocarbon gas flow to nitrogen gas flow. The resultant IBD i-C:HN films exhibit a reduced tendency for charge build-up thereon during hard disk operation by virtue of their lower resistivity vis-à-vis conventional a-C:H materials.

    摘要翻译： 离子束沉积的氮掺杂的C：H膜具有比未掺杂的离子束沉积的C：H膜具有显着更低的电阻率，并且适合用作硬记录介质（例如硬盘）的硬的，耐磨损的外涂层 通过向离子束发生器提供烃和氮气的混合物。 将膜的氮原子含量控制在约5至约25at。 通过适当选择碳氢化合物气体流量与氮气流量的比例来确定。 所得到的IBD i-C：HN膜在硬盘操作期间由于其相对于常规a-C：H材料的较低电阻率而在其上积累电荷降低的倾向。