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    Granular perpendicular media with surface treatment for improved magnetic properties and corrosion resistance
    11.
    发明授权
    Granular perpendicular media with surface treatment for improved magnetic properties and corrosion resistance 有权
    具有表面处理的颗粒垂直介质，用于改善磁性能和耐腐蚀性

    公开(公告)号：US07169488B2

    公开(公告)日：2007-01-30

    申请号：US10705069

    申请日：2003-11-10

    申请人： Qixu Chen ,  Tom Nolan ,  Raj Nagappan Thangaraj ,  Zhong (Stella) Wu ,  Samuel Dacke Harkness

    发明人： Qixu Chen ,  Tom Nolan ,  Raj Nagappan Thangaraj ,  Zhong (Stella) Wu ,  Samuel Dacke Harkness

    IPC分类号： G11B5/66 ,  G11B5/70

    CPC分类号： G11B5/732 ,  G11B5/65 ,  G11B5/667 ,  G11B5/72 ,  G11B5/8408 ,  G11B5/851 ,  G11B2005/0029

    摘要： A granular perpendicular magnetic recording medium having a surface treated magnetic layer comprising an oxidized or nitrogenized boundary layer formed on the surface of the magnetic layer, wherein the magnetic layer comprises granular magnetic regions having oxygen and/or nitrogen-containing grain boundaries. In one embodiment, the granular perpendicular recording medium further comprises a soft magnetic layer below the surface treated granular magnetic layer and a protective overcoat over the surface treated granular magnetic layer. A method of manufacturing a granular perpendicular magnetic recording medium includes depositing a magnetic layer having granular structure over a substrate and subsequently surface treating the granular magnetic layer in an oxygen and/or nitrogen-containing atmosphere to produce an oxidized and/or nitrogenized boundary layer formed on the surface of the granular magnetic layer. The granular perpendicular magnetic recording medium of the present invention exhibits high Hc and SNR while exhibiting improved corrosion resistance and contact start-stop performance.

    摘要翻译： 一种具有表面处理的磁性层的颗粒状垂直磁记录介质，包括形成在磁性层的表面上的氧化或氮化的边界层，其中磁性层包括具有氧和/或含氮晶界的颗粒状磁性区域。 在一个实施例中，粒状垂直记录介质还包括在表面处理的颗粒磁性层下方的软磁性层和在表面处理过的颗粒状磁性层上的保护性外涂层。 一种制造粒状垂直磁记录介质的方法包括在衬底上沉积具有粒状结构的磁性层，随后在氧和/或含氮气氛中表面处理粒状磁性层，以形成形成的氧化和/或氮化的边界层 在粒状磁性层的表面上。 本发明的粒状垂直磁记录介质表现出高的Hc和SNR，同时具有改进的耐腐蚀性和接触起止性能。

    Multilayer perpendicular media with high-boron or high-carbon additives to CoCr films
    12.
    发明申请
    Multilayer perpendicular media with high-boron or high-carbon additives to CoCr films 有权
    多层垂直介质与高硼或高碳添加剂CoCr膜

    公开(公告)号：US20050037237A1

    公开(公告)日：2005-02-17

    申请号：US10402772

    申请日：2003-03-28

    申请人： Qixu Chen ,  Charles Brucker ,  Rajiv Ranjan

    发明人： Qixu Chen ,  Charles Brucker ,  Rajiv Ranjan

    IPC分类号： G11B5/64 ,  G11B5/66 ,  G11B5/73

    CPC分类号： G11B5/667 ,  G11B5/656 ,  G11B5/66 ,  G11B5/7325 ,  Y10T428/265

    摘要： Carbon or boron is added into the CoCr layers of a multiplayer perpendicular magnetic media structure to reduce media noise. The perpendicular magnetic media structure has sharp interfaces between Co-alloy layers and Pd or Pt layers and significantly reduced exchange coupling. In accordance with one embodiment of the invention, the perpendicular magnetic media structure with carbon or boron additives is 700 Å FeCo30.8B12/20 Å TaOx/700 Å FeCo30.8B12/20 Å TaOx/700 Å FeCo30.8B12/20 Å TaOx/158 Å FeCo30.8B12/17 Å Ta/49 Å ITO/33 Å CoCr37Ru10/2.5 Å COy/2.5 Å C/[(CoCr9)C6.8/Pd]19/50 Å CHN. [(CoCr9)C6.8/Pd]19 means 19 layers of the bi-layer stack (CoCr9)C6.8/Pd. TaOx stands for surface-oxidized Ta and COy stands for C oxides . ITO stands for Indium Tin Oxide and consists of In2O3 and Sn2O5 at 80 and 20 molecular percent respectively. CHN refers to hydrogenated and nitrogenated carbon.

    摘要翻译： 将碳或硼添加到多玩家垂直磁性介质结构的CoCr层中以降低介质噪声。 垂直磁介质结构在Co合金层和Pd或Pt层之间具有明显的界面，并显着降低了交换耦合。 根据本发明的一个实施方案，具有碳或硼添加剂的垂直磁介质结构为700埃FeCo30.8B12 / 20AaOx / 700ÅFeCo30.8B12 / 20ÅTaOx / 700ÅFeCo30.8B12 /ÅTaOx / 158ÅFeCo30.8B12 / 17ÅTa / 49ÅITO / 33ÅCoCr37Ru10 / 2.5Åy/ 2.5ÅC / [（CoCr9）C6.8 / Pd] 19/50ÅCHN。 [（CoCr9）C6.8 / Pd] 19表示19层双层堆叠（CoCr9）C6.8 / Pd。 TaOx代表表面氧化的Ta，COy表示C氧化物。 ITO代表氧化铟锡，分别由80和20分子％的In 2 O 3和Sn 2 O 5构成。 CHN是指氢化和氮化的碳。

    Multilayer perpendicular media with high-boron or high-carbon additives to CoCr films
    13.
    发明授权
    Multilayer perpendicular media with high-boron or high-carbon additives to CoCr films 有权
    多层垂直介质与高硼或高碳添加剂CoCr膜

    公开(公告)号：US07323259B2

    公开(公告)日：2008-01-29

    申请号：US10402772

    申请日：2003-03-28

    申请人： Qixu Chen ,  Charles Brucker ,  Rajiv Yadav Ranjan

    发明人： Qixu Chen ,  Charles Brucker ,  Rajiv Yadav Ranjan

    IPC分类号： G11B5/66 ,  G11B5/70

    CPC分类号： G11B5/667 ,  G11B5/656 ,  G11B5/66 ,  G11B5/7325 ,  Y10T428/265

    摘要： Carbon or boron is added into the CoCr layers of a multiplayer perpendicular magnetic media structure to reduce media noise. The perpendicular magnetic media structure has sharp interfaces between Co-alloy layers and Pd or Pt layers and significantly reduced exchange coupling. In accordance with one embodiment of the invention, the perpendicular magnetic media structure with carbon or boron additives is 700 Å FeCo30.8B12/20 Å TaOx/700 Å FeCo30.8B12/20 Å TaOx/700 Å FeCo30.8B12/20 Å TaOx/158 Å FeCo30.8B12/17 Å Ta/49 Å ITO/33 Å CoCr37Ru10/2.5 Å COy/2.5 Å C/[(CoCr9)C6.8/Pd]19/50 Å CHN. [(CoCr9)C6.8/Pd]19 means 19 layers of the bi-layer stack (CoCr9)C6.8/Pd. TaOx stands for surface-oxidized Ta and COy stands for C oxides. ITO stands for Indium Tin Oxide and consists of In2O3 and Sn2O5 at 80 and 20 molecular percent respectively. CHN refers to hydrogenated and nitrogenated carbon.

    摘要翻译： 将碳或硼添加到多玩家垂直磁性介质结构的CoCr层中以降低介质噪声。 垂直磁介质结构在Co合金层和Pd或Pt层之间具有明显的界面，并显着降低了交换耦合。 根据本发明的一个实施方案，具有碳或硼添加剂的垂直磁性介质结构是700埃，30.8×12/20埃， 30/100FeCo 30.8 B 12/20Åx xÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅB B B B B B B B B B B B > 12/20ÅTaO x / 158ÅFeCo 30.8 B 12/17Å/ 49ITO / 33Å CoCr / / / / / / / /（（C）Cr C > 6.8 / Pd] 19/50埃。 [（CoCr 9）C 6.8 / Pd] 19表示19层双层堆叠（CoCr 9 / / SUB >）C 6.8 / Pd。 TaO x代表表面氧化的Ta，CO 2代表C氧化物。 ITO代表氧化铟锡，由80和20组成的In 2 N 2 O 3和Sn 2 O 5 O 5组成。 分子百分比。 CHN是指氢化和氮化的碳。

    Target shields for improved magnetic properties of a recording medium
    18.
    发明授权
    Target shields for improved magnetic properties of a recording medium 有权
    用于提高记录介质的磁性能的目标屏蔽

    公开(公告)号：US06482301B1

    公开(公告)日：2002-11-19

    申请号：US09326245

    申请日：1999-06-04

    申请人： Qixu Chen ,  Charles Leu ,  Mark Anthony Shows ,  Paul Stephen McLeod ,  Rajiv Yadav Ranjan

    发明人： Qixu Chen ,  Charles Leu ,  Mark Anthony Shows ,  Paul Stephen McLeod ,  Rajiv Yadav Ranjan

    IPC分类号： C23C1432

    CPC分类号： G11B5/851 ,  C23C14/34 ,  H01J37/34 ,  H01J37/3447

    摘要： A collimator system is disclosed for use in an in-line pass-by sputtering system during the fabrication of recording media to improve the data storage density and read/write performance characteristics of the media. The collimator system includes a collimator shield and a collimator honeycomb. The shield includes a rectangular tube having a flange and a frame at inner and outer ends, respectively. The various components of the shield in part serve to prevent possible contamination of substrates due to target atom accumulation on the chamber walls during the sputtering process. The collimator honeycomb is provided for blocking target atoms from contacting the substrate at low incident angles. The collimator honeycomb is comprised of a plurality of collimators which are identical to each other. In a preferred embodiment, the collimators have a hexagonal cross-section taken from a perspective perpendicular to the substrate. The collimators may also have other geometric shapes. It is also contemplated that more than one collimator honeycomb level be used in alternative embodiments.

    摘要翻译： 在制造记录介质期间公开了一种用于在线传递溅射系统的准直器系统，以改善数据存储密度和读/写性能特性。 准直仪系统包括准直器屏蔽和准直器蜂窝。 护罩包括分别在内端和外端具有凸缘和框架的矩形管。 屏蔽件的各种部件部分地用于防止在溅射过程期间由于靶室原子在室壁上的积聚而引起的基板的可能污染。 提供准直器蜂窝用于阻止目标原子以低入射角接触基板。 准直器蜂窝体由多个彼此相同的准直器构成。 在优选实施例中，准直器具有垂直于衬底的透视图的六边形截面。 准直器也可以具有其他几何形状。 还可以想到，在替代实施例中可以使用多于一个准直器蜂窝等级。

    Magnetic recording medium with a nialru seedlayer
    19.
    发明授权
    Magnetic recording medium with a nialru seedlayer 有权
    具有nialru种子层的磁记录介质

    公开(公告)号：US06432562B1

    公开(公告)日：2002-08-13

    申请号：US09393328

    申请日：1999-09-10

    申请人： Stella Z. Wu ,  Qixu Chen ,  Samuel D. Harkness, IV ,  Rajiv Y. Ranjan

    发明人： Stella Z. Wu ,  Qixu Chen ,  Samuel D. Harkness, IV ,  Rajiv Y. Ranjan

    IPC分类号： G11B566

    CPC分类号： G11B5/732 ,  G11B5/7325 ,  G11B5/8404 ,  Y10S428/90 ,  Y10T428/265

    摘要： High areal density magnetic recording media exhibiting high magnetic performance, e.g., narrow PW50, and high OW, and high SNR, are formed with a NiAlRu seedlayer. Embodiments of the present invention include sputter depositing a NiAlRu seedlayer on a non-magnetic substrate and sequentially depositing thereon a Cr or Cr alloy underlayer, e.g., CrMo, CrMn, CrV or CrW, a magnetic layer, e.g., a Co—Cr-containing magnetic alloy layer, and a protective overcoat, e.g., a carbon-containing protective overcoat.

    摘要翻译： 使用NiAlRu种子层形成表现出高磁性能的高密度磁记录介质，例如窄PW50，高OW，高SNR。 本发明的实施例包括在非磁性衬底上溅射沉积NiAlRu种子层并且在其上依次沉积Cr或Cr合金底层，例如CrMo，CrMn，CrV或CrW，磁性层，例如含Co-Cr 磁性合金层和保护性外涂层，例如含碳保护性外涂层。