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    Manganese containing layer for magnetic recording media
    1.
    发明授权
    Manganese containing layer for magnetic recording media 失效
    含锰层含磁记录介质

    公开(公告)号：US5993956A

    公开(公告)日：1999-11-30

    申请号：US844835

    申请日：1997-04-22

    申请人： David N. Lambeth ,  Li-Lien Lee ,  David E. Laughlin

    发明人： David N. Lambeth ,  Li-Lien Lee ,  David E. Laughlin

    IPC分类号： G11B5/738 ,  G11B5/64 ,  G11B5/851 ,  G11B5/66

    CPC分类号： G11B5/64 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265

    摘要： The present invention provides for a magnetic recording media incorporating Mn-containing layers between a substrate and a magnetic layer to provide media having increased coercivity and lower noise. The Mn-containing layer can be incorporated in a rotating, translating or stationary recording media to operate in conjunction with magnetic transducing heads for recording and reading of magnetic data, as well as other applications. The magnetic recording medium of the invention preferably includes a Co or Co alloy film magnetic layer, and Mn-containing layer, preferably comprised of VMn, TiMn, MnZn, CrMnMo, CrMnW, CrMnV, and CrMnTi, and most preferably a CrMn alloy, disposed between the substrate and the magnetic layer to promote an epitaxial crystalline structure in the magnetic layer. The medium can further include seed layers, preferably polycrystalline MgO for longitudinal media, underlayers, and intermediate layers. Underlayers and intermediate layers are comprised of materials having either an A2 structure or a B2-ordered crystalline structure disposed between the seed layer and the magnetic layer. Materials having an A2 structure are preferably Cr or Cr alloys, such as CrV, CrMo, CrW and CrTi. Materials having a B2-ordered structure having a lattice constant that is substantially comparable to that of Cr, such as those preferably selected from the group consisting of NiAl, AILCo, FeAl, FeTi, CoFe, CoTi, CoHf, CoZr, NiTi, CuBe, CuZn, A-LMn, AlRe, AgMg, and Al.sub.2 FeMn.sub.2, and is most preferably FeAl or NiAl.

    摘要翻译： 本发明提供一种磁性记录介质，其在衬底和磁性层之间结合含Mn层，以提供具有增加的矫顽力和较低噪声的介质。 含Mn层可以结合在旋转，平移或静止的记录介质中以与用于记录和读取磁数据以及其它应用的磁转换头一起操作。 本发明的磁记录介质优选包括Co或Co合金膜磁性层和含Mn层，优选包含VMn，TiMn，MnZn，CrMnMo，CrMnW，CrMnV和CrMnTi，最优选CrMn合金， 在衬底和磁性层之间，以促进在磁性层中的外延晶体结构。 介质还可以包括种子层，优选用于纵向介质，底层和中间层的多晶MgO。 底层和中间层由具有设置在种子层和磁性层之间的具有A2结构或B2有序晶体结构的材料组成。 具有A2结构的材料优选为Cr或Cr合金，例如CrV，CrMo，CrW和CrTi。 具有基本上与Cr相当的晶格常数的B2有序结构的材料，例如优选选自NiAl，AlLCo，FeAl，FeTi，CoFe，CoTi，CoHf，CoZr，NiTi，CuBe， CuZn，A-LMn，AlRe，AgMg和Al2FeMn2，最优选为FeAl或NiAl。

    Structure for and method of making magnetic recording media
    2.
    发明授权
    Structure for and method of making magnetic recording media 有权
    制作磁记录介质的结构和方法

    公开(公告)号：US06649277B1

    公开(公告)日：2003-11-18

    申请号：US09551504

    申请日：2000-04-17

    申请人： Li-Lien Lee ,  David N. Lambeth ,  David E. Laughlin ,  Byung-Ki Cheong

    发明人： Li-Lien Lee ,  David N. Lambeth ,  David E. Laughlin ,  Byung-Ki Cheong

    IPC分类号： G11B5738

    CPC分类号： G11B5/732 ,  G11B5/66 ,  G11B5/7325 ,  G11B5/8404 ,  Y10T428/12465 ,  Y10T428/12861 ,  Y10T428/12896 ,  Y10T428/12903 ,  Y10T428/265

    摘要： The present invention provides a longitudinal magnetic recording media having a substrate, optionally, a sputter deposited MgO seed layer, a Co or Co alloy based magnetic layer and an underlayer disposed between the substrate and the magnetic layer comprised of a material having a body centered cubic derivative ordered crystalline structure, preferably a B2, DO3 or L21 structure. The material may be for example, NiAl, FeAl or Mn3Si. A thin Cr or Cr alloy intermediate layer of about 1.0 nm to 5.0 nm thick may be positioned between the underlayer and the magnetic layer.

    摘要翻译： 本发明提供了一种纵向磁记录介质，其具有基底，任选地，溅射沉积的MgO种子层，基于Co或Co合金的磁性层和设置在基底和磁性层之间的底层，该层由具有体心立方体 衍生有序晶体结构，优选B2，DO3或L21结构。 该材料可以是例如NiAl，FeAl或Mn 3 Si。 约1.0nm至5.0nm厚的薄Cr或Cr合金中间层可位于底层和磁性层之间。

    Longitudinal magnetic media having a granular magnetic layer
    6.
    发明授权
    Longitudinal magnetic media having a granular magnetic layer 失效
    具有粒状磁性层的纵向磁性介质

    公开(公告)号：US07407719B1

    公开(公告)日：2008-08-05

    申请号：US10829164

    申请日：2004-04-22

    申请人： Erol Girt ,  Li-Lien Lee ,  Samuel D. Harkness, IV

    发明人： Erol Girt ,  Li-Lien Lee ,  Samuel D. Harkness, IV

    IPC分类号： G11B5/66

    CPC分类号： G11B5/732 ,  G11B5/65 ,  G11B5/7325

    摘要： A novel method of manufacturing a longitudinal granular oxide recording medium is disclosed. The method preferably entails obtaining a non-magnetic substrate, heating the substrate at a temperature T1 that is greater than 150° C., forming a first layer with body-centered cubic atomic structure and with a preferred growth orientation, cooling the substrate to a temperature T2 and forming a second layer comprising a magnetic oxide-containing granular magnetic layer with a hexagonal close packed atomic structure and with a preferred growth orientation. The magnetic oxide-containing granular magnetic layer contains magnetic crystal grains that are substantially isolated by an inter-granular region comprising a non-magnetic substance, wherein the non-magnetic substance is preferably an oxide-containing material.

    摘要翻译： 公开了制造纵向粒状氧化物记录介质的新颖方法。 该方法优选需要获得非磁性衬底，在大于150℃的温度T 1加热衬底，形成具有体心立方原子结构的第一层， 200>优选的生长方向，将衬底冷却至温度T 2，并形成包含具有六方密堆积原子结构的含氧化物的颗粒状磁性层的第二层，并且具有<11-20> 首选生长方向。 含有磁氧化物的粒状磁性层含有通过包含非磁性物质的颗粒间区域基本隔离的磁性晶粒，其中非磁性物质优选为含氧化物的材料。

    Magnetic recording media using directly textured glass
    7.
    发明授权
    Magnetic recording media using directly textured glass 失效
    使用直接纹理化玻璃的磁记录介质

    公开(公告)号：US07298588B2

    公开(公告)日：2007-11-20

    申请号：US10869007

    申请日：2004-06-15

    申请人： Li-Lien Lee ,  Shanghsien Rou ,  Romulo Ata

    发明人： Li-Lien Lee ,  Shanghsien Rou ,  Romulo Ata

    IPC分类号： G11B5/65 ,  G11B5/738

    CPC分类号： G11B5/732 ,  G11B5/656 ,  G11B5/66 ,  G11B5/7325 ,  G11B5/8404

    摘要： A magnetic recording medium deposited on glass and having an orientation ratio greater than one is disclosed. The magnetic recording medium includes a CoW seedlayer deposited on a circumferentially textured glass substrate. The magnetic recording medium with such a seedlayer can have an OR that is similar or higher than that with a NiP seedlayer. Magnetic recording medium with a CoW seedlayer can produce oriented glass media with orientation ratio OR>1 when sputtered on substrates which have been circumferentially textured before the deposition of the CoW seedlayer. The W content of the CoW seedlayer can range between 30-50 at %. The thickness of the CoW seedlayer can range between 10 Å and 200 Å. The method for sputter depositing the magnetic recording medium is also disclosed and includes sputter depositing the CoW seedlayer using pure Ar as sputtering gas or using a mixture of Ar and O2, H2O and N2 as sputtering gas.

    摘要翻译： 公开了一种沉积在玻璃上并具有大于1的取向比的磁记录介质。 磁记录介质包括沉积在周向织构化的玻璃基板上的CoW种子层。 具有这种种子层的磁记录介质可以具有与NiP种子层相似或更高的OR。 具有CoW种子层的磁记录介质可以在沉积CoW种子层之前沿周向纹理化的基底上溅射时产生取向比OR> 1的取向玻璃介质。 CoW种子层的W含量可以在30-50at％之间。 CoW种子层的厚度可以在10埃和200埃之间。 还公开了用于溅射沉积磁记录介质的方法，并且包括使用纯Ar作为溅射气体或者使用Ar和O 2 H 2的混合物溅射沉积CoW种子层 > O和N 2 作为溅射气体。

    Magnetic recording media with manganese-containing underlayer
    9.
    发明申请
    Magnetic recording media with manganese-containing underlayer 审中-公开
    具有含锰底层的磁记录介质

    公开(公告)号：US20070122660A1

    公开(公告)日：2007-05-31

    申请号：US11287240

    申请日：2005-11-28

    申请人： Weilu Xu ,  Li-Lien Lee ,  Charles Chen ,  Shanghsien Rou ,  Kuo-Hsing Hwang

    发明人： Weilu Xu ,  Li-Lien Lee ,  Charles Chen ,  Shanghsien Rou ,  Kuo-Hsing Hwang

    IPC分类号： G11B5/66

    CPC分类号： G11B5/7325 ,  G11B5/66

    摘要： A thin film magnetic recording medium with enhanced signal-to-noise ratio (SNR) comprises a non-magnetic substrate having a surface; and a layer stack atop the substrate surface, comprising at least one magnetic recording layer and a plurality of layers beneath the at least one magnetic recording layer, including: a first underlayer proximal the substrate surface; a second, grain size refinement underlayer in overlying contact with the first underlayer; a third, in-plane growth orientation underlayer in overlying contact with the second underlayer; and a magnetic stabilization layer in overlying contact with the third underlayer, wherein the third underlayer comprises manganese (Mn).

    摘要翻译： 具有增强的信噪比（SNR）的薄膜磁记录介质包括具有表面的非磁性基底; 以及在所述衬底表面上方的层叠层，包括至少一个磁记录层和所述至少一个磁记录层下面的多个层，包括：靠近所述衬底表面的第一底层; 第二，与第一底层重叠接触的粒度细化底层; 与第二底层重叠接触的第三个面内生长取向底层; 以及与所述第三底层重叠接触的磁稳定层，其中所述第三底层包含锰（Mn）。

    System and method for recording media on textured glass
    10.
    发明授权
    System and method for recording media on textured glass 失效
    在纹理玻璃上记录介质的系统和方法

    公开(公告)号：US06824896B2

    公开(公告)日：2004-11-30

    申请号：US10335348

    申请日：2002-12-31

    申请人： Li-Lien Lee ,  Samuel Dacke Harkness ,  Kien Vinh Hua ,  Eric Steck Freeman

    发明人： Li-Lien Lee ,  Samuel Dacke Harkness ,  Kien Vinh Hua ,  Eric Steck Freeman

    IPC分类号： G11B566

    CPC分类号： G11B5/732 ,  G11B5/66 ,  G11B5/7325 ,  Y10S428/90 ,  Y10T428/12465 ,  Y10T428/12854 ,  Y10T428/265

    摘要： A magnetic media structure 200 deposited on glass substrates without a NiP layer having oriented media (ORMRT>1), high coercivity and high SMNR is presented. This media will significantly reduce the cost of making high quality media on glass substrates by eliminating the cost associated with additional steps of depositing a NiP layer and texturing that layer. First glass substrates are mechanically textured to have a surface roughness of about 1 Å to about 12 Å. The first layer of the magnetic structure contains Cr and Ti with a Ti content of 27 to 63 atomic percentage. The second layer contains Co and Ti with a Ti content of 43 to 55 atomic percentage. The third layer is a Cr-alloy layer wherein the alloy is an element chosen from W, Mo, V, Si, Ti, Mn, Ru, B, Nb, Ta, Zr, and Pt. The fourth layer is Co58Cr37Pt5 and the fifth layer is Co61Cr15Pt12B12. Finally, the protective overcoat is typically a hard material that contains hydrogenated carbon.

    摘要翻译： 提出了沉积在不具有定向介质（ORMRT> 1）的NiP层，高矫顽力和高SMNR的玻璃衬底上的磁介质结构200。 该介质将通过消除与沉积NiP层和纹理化该层的附加步骤相关的成本来显着降低在玻璃基板上制造高质量介质的成本。 第一玻璃基板机械​​地织构成具有大约至大约的表面粗糙度。 磁性结构的第一层含有Ti含量为27〜63原子％的Cr和Ti。 第二层含有Ti含量为43〜55原子百分比的Co和Ti。 第三层是Cr合金层，其中合金是选自W，Mo，V，Si，Ti，Mn，Ru，B，Nb，Ta，Zr和Pt的元素。 第四层为Co58Cr37Pt5，第五层为Co61Cr15Pt12B12。 最后，保护性外涂层通常是含有氢化碳的硬质材料。