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28 条记录 (耗时 0.023 秒)

    Oxygen plasma post-deposition treatment of magnetic recording media
    4.
    发明授权
    Oxygen plasma post-deposition treatment of magnetic recording media 有权
    磁记录介质的氧等离子体后沉积处理

    公开(公告)号：US07354618B2

    公开(公告)日：2008-04-08

    申请号：US10704593

    申请日：2003-11-12

    申请人： Chung-Hee Chang ,  Xiaoding Ma ,  Michael Joseph Stirniman ,  Jeffrey Shane Reiter ,  Samuel Dacke Harkness, IV ,  Rajiv Ranjan

    发明人： Chung-Hee Chang ,  Xiaoding Ma ,  Michael Joseph Stirniman ,  Jeffrey Shane Reiter ,  Samuel Dacke Harkness, IV ,  Rajiv Ranjan

    IPC分类号： B05D5/12

    CPC分类号： G11B5/84 ,  B29C59/14 ,  B29L2007/007 ,  B29L2017/008

    摘要： A method of manufacturing magnetic recording media, comprising sequential steps of: (a) providing an apparatus for manufacturing the media; (b) supplying the apparatus with at least one substrate for the media; (c) forming a magnetic recording layer on the at least one substrate in a first portion of the apparatus, the magnetic recording layer including a surface; (d) treating the surface of the magnetic recording layer with an ionized oxygen-containing plasma in a second portion of the apparatus to form a plasma oxidized surface layer; and (e) forming a protective overcoat layer on the plasma oxidized surface layer of the magnetic recording layer in a third portion of the apparatus.

    摘要翻译： 一种制造磁记录介质的方法，包括以下步骤：（a）提供用于制造介质的装置; （b）向所述设备供应用于所述介质的至少一个基板; （c）在所述装置的第一部分中的所述至少一个基板上形成磁记录层，所述磁记录层包括表面; （d）在设备的第二部分中用离子化的含氧等离子体处理磁记录层的表面以形成等离子体氧化表面层; 和（e）在设备的第三部分中在磁记录层的等离子体氧化表面层上形成保护性外涂层。

    Magnetic recording media with a surface-oxidized nial sub-seedlayer
    6.
    发明授权
    Magnetic recording media with a surface-oxidized nial sub-seedlayer 失效
    具有表面氧化的Nial子种子层的磁记录介质

    公开(公告)号：US06348276B1

    公开(公告)日：2002-02-19

    申请号：US09382581

    申请日：1999-08-25

    申请人： Qixu Chen ,  Zhong Wu ,  Samuel Dacke Harkness, IV ,  Charles Leu ,  Rajiv Yadav Ranjan

    发明人： Qixu Chen ,  Zhong Wu ,  Samuel Dacke Harkness, IV ,  Charles Leu ,  Rajiv Yadav Ranjan

    IPC分类号： G11B566

    CPC分类号： G11B5/732 ,  C23C14/025 ,  G11B5/66 ,  G11B5/7325 ,  G11B5/8404

    摘要： Magnetic recording media with high coercivity and low noise, suitable for high density longitudinal recording, are formed with a surface oxidized sub-seedlayer between a non-magnetic substrate and seedlayer. Embodiments include depositing a NiAl sub-seedlayer on a glass or glass-ceramic substrate, oxidizing the surface of the NiAl sub-seedlayer, and then sequentially depositing a NiAl seedlayer, Cr or Cr alloy underlayer, e.g., CrMo, an optional intermediate CoCrTa alloy layer, a magnetic layer, e.g., a Co-alloy magnetic layer, and a protective overcoat, e.g., a carbon-containing protective overcoat.

    摘要翻译： 在非磁性基材和籽晶层之间形成表面氧化亚子层，适用于高密度纵向记录的具有高矫顽力和低噪声的磁记录介质。 实施例包括在玻璃或玻璃陶瓷基片上沉积NiAl亚子层，氧化NiAl亚子层的表面，然后依次沉积NiAl种子层，Cr或Cr合金底层，例如CrMo，任选的中间CoCrTa合金 层，磁性层，例如Co合金磁性层和保护性外涂层，例如含碳保护性外涂层。

    Corrosion resistant magnetic thin film media
    7.
    发明授权
    Corrosion resistant magnetic thin film media 失效
    耐腐蚀磁性薄膜介质

    公开(公告)号：US06589676B1

    公开(公告)日：2003-07-08

    申请号：US09902600

    申请日：2001-07-12

    申请人： Jing Gui ,  Raj Thangaraj ,  Roger Alan Ristau ,  Samuel Dacke Harkness, IV ,  Gary Clark Rauch

    发明人： Jing Gui ,  Raj Thangaraj ,  Roger Alan Ristau ,  Samuel Dacke Harkness, IV ,  Gary Clark Rauch

    IPC分类号： G11B566

    CPC分类号： C23C14/165 ,  G11B5/66 ,  G11B5/72 ,  G11B5/851 ,  G11B5/855 ,  Y10S428/90 ,  Y10T428/24975 ,  Y10T428/265

    摘要： Corrosion resistant magnetic thin film media are fabricated using a CoCr magnetic layer having a stabilized protective chromium oxide film thereon. Stabilization of the protective chromium oxide film is achieved by incorporating a stabilizing element, such as Mo, V, Mn, Nb, Ni or Si, in the magnetic layer, thereby enabling elimination of the protective overcoat, e.g., C-containing protective overcoat, or forming the protective overcoat at a significantly low thickness of less than about 20 Å, e.g., up to about 1 Å. Embodiments include forming a magnetic layer comprising Co and Cr on an underlayer, and then forming a thin magnetic layer containing Co and Cr with the chromium oxide stabilizing element thereon. Embodiments further include introducing the chromium oxide stabilizing element by diffusion or ion implantation into a sputter deposited Co—Cr magnetic alloy layer.

    摘要翻译： 使用其上具有稳定的保护性氧化铬膜的CoCr磁性层制造耐腐蚀磁性薄膜介质。 保护性氧化铬膜的稳定化是通过在磁性层中并入稳定元素如Mo，V，Mn，Nb，Ni或Si而实现的，由此能够消除保护性外涂层，例如含C的保护性外涂层， 或形成保护性外涂层，其厚度小于约20埃，例如至多约。 实施例包括在底层上形成包含Co和Cr的磁性层，然后在其上形成含有Co和Cr的薄的磁性层与氧化铬稳定元件。 实施例还包括通过扩散或离子注入将氧化铬稳定化元件引入溅射沉积的Co-Cr磁性合金层。

    PERPENDICULAR RECORDING MAGNETIC MEDIA HAVING A GRANULAR MAGNETIC RECORDING LAYER AND AN AMORPHOUS SOFT UNDERLAYER
    10.
    发明申请
    PERPENDICULAR RECORDING MAGNETIC MEDIA HAVING A GRANULAR MAGNETIC RECORDING LAYER AND AN AMORPHOUS SOFT UNDERLAYER 审中-公开
    具有颗粒磁记录层和非线性软底层的全磁记录磁介质

    公开(公告)号：US20090214896A1

    公开(公告)日：2009-08-27

    申请号：US12463869

    申请日：2009-05-11

    申请人： Thomas Patrick Nolan ,  Zhong (Stella) Wu ,  Samuel Dacke Harkness, IV

    发明人： Thomas Patrick Nolan ,  Zhong (Stella) Wu ,  Samuel Dacke Harkness, IV

    IPC分类号： G11B5/66 ,  C23C14/34

    CPC分类号： G11B5/667 ,  G11B5/65

    摘要： A perpendicular magnetic recording medium having a substrate, an amorphous soft underlayer of thickness 30 nm or greater, and a granular magnetic recording layer for perpendicular recording is disclosed. The granular magnetic recording layer includes a non-magnetic region between magnetic grains, wherein the non-magnetic region includes metal nitride or metal carbide and provides exchange decoupling between the magnetic grains. The perpendicular recording medium of this invention reduces DC noise and increases media signal-to-noise ratio; it reduces surface roughness, which in turn reduces the head-to-media spacing and the head-to-amorphous soft underlayer spacing.

    摘要翻译： 公开了具有基板，厚度为30nm以上的无定形软底层和用于垂直记录的粒状磁记录层的垂直磁记录介质。 颗粒状磁记录层包括磁性颗粒之间的非磁性区域，其中非磁性区域包括金属氮化物或金属碳化物，并提供磁性颗粒之间的交换去耦合。 本发明的垂直记录介质降低了DC噪声并提高了介质信噪比; 它降低了表面粗糙度，这反过来降低了头对媒体间距和头对非软的软下层间距。