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公开(公告)号：US06416881B1
公开(公告)日：2002-07-09
申请号：US09571506
申请日：2000-05-15
申请人： Lin Huang , Liji Huang , Qixu David Chen , Charles Leu , Rajiv Yadav Ranjan
发明人： Lin Huang , Liji Huang , Qixu David Chen , Charles Leu , Rajiv Yadav Ranjan
IPC分类号： G11B564
CPC分类号： G11B5/732 , G11B5/7325 , G11B5/738 , Y10S428/90 , Y10T428/12465 , Y10T428/12667 , Y10T428/12847 , Y10T428/26
摘要： Sputter-deposited amorphous metal oxide films on substrates comprising an aluminum-containing support and a Ni-containing pre-coat reduce Ni ion migration significantly from the substrate onto the top surface of the magnetic recording media. Longitudinal magnetic recording media deposited on metal oxide sealing layers have very good magnetic recording performances and are suitable for high density recording application.
摘要翻译： 包含含铝载体和含Ni预涂层的基板上的溅射沉积的非晶金属氧化物膜显着地减少了从基板到磁记录介质顶表面的Ni离子迁移。 沉积在金属氧化物密封层上的纵向磁记录介质具有非常好的磁记录性能，适用于高密度记录应用。
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公开(公告)号：US6117570A
公开(公告)日：2000-09-12
申请号：US152326
申请日：1998-09-14
申请人： Qixu David Chen , Liji Huang , Charles Leu , Rajiv Yadav Ranjan
发明人： Qixu David Chen , Liji Huang , Charles Leu , Rajiv Yadav Ranjan
CPC分类号： G11B5/732 , G11B5/8404 , Y10S428/90 , Y10T428/265
摘要： High areal density magnetic recording media exhibiting low noise are formed with a surface oxidized NiAl seed layer. Embodiments include forming the surface oxidized NiAl seed layer on a glass or glass-ceramic substrate, and sequentially depositing a Cr or Cr-alloy, such as CrV, an intermediate CoCrTa layer and a CoCrPtTa magnetic layer.
摘要翻译： 利用表面氧化的NiAl种子层形成表现出低噪声的高密度磁性记录介质。 实施例包括在玻璃或玻璃陶瓷衬底上形成表面氧化的NiAl种子层，并依次沉积Cr或Cr合金，例如CrV，中间CoCrTa层和CoCrPtTa磁性层。
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公开(公告)号：US06376097B1
公开(公告)日：2002-04-23
申请号：US09630761
申请日：2000-08-02
申请人： Charles Leu , Lin Huang , Qixu David Chen , Rajiv Yadav Ranjan
发明人： Charles Leu , Lin Huang , Qixu David Chen , Rajiv Yadav Ranjan
IPC分类号： G11B566
CPC分类号： G11B5/7325 , G11B5/656 , G11B5/72 , G11B5/851 , Y10T428/12465 , Y10T428/12806 , Y10T428/1284 , Y10T428/12861 , Y10T428/265
摘要： Sputter-deposited TiW film interposed between a magnetic layer and a nitrogen-containing overcoat of a magnetic recording medium significantly reduces the migration of nitrogen from the overcoat to the magnetic layer, thereby improving the magnetic recording performances of the magnetic recording medium.
摘要翻译： 介于磁性层和磁记录介质的含氮外涂层之间的溅射沉积的TiW膜显着地减少了氮气从外涂层向磁性层的迁移，从而提高了磁记录介质的磁记录性能。
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4.发明授权公开(公告)号：US07175925B2
公开(公告)日：2007-02-13
申请号：US10663670
申请日：2003-09-17
申请人： Qixu David Chen , Thomas P. Nolan , Zhong Stella Wu , Samuel Dacke Harkness, IV , Rajiv Yadav Ranjan
发明人： Qixu David Chen , Thomas P. Nolan , Zhong Stella Wu , Samuel Dacke Harkness, IV , Rajiv Yadav Ranjan
CPC分类号： G11B5/732 , G11B5/667 , G11B2005/0029
摘要： A perpendicular magnetic recording medium, comprising: (a) a non-magnetic substrate having a surface; and (b) a layer stack formed over the substrate surface, comprising in overlying sequence from the substrate surface: (i) a magnetically soft underlayer; (ii) an interlayer structure for crystallographically orienting a layer of a perpendicular magnetic recording material formed thereon; and (iii) at least one crystallographically oriented magnetically hard perpendicular recording layer; wherein the magnetically soft underlayer is sputter-deposited at a sufficiently large target-to-substrate spacing and at a sufficiently low gas pressure selected to provide the underlayer with a smooth surface having a low average surface roughness Ra below about 0.3 nm, as measured by Atomic Force Microscopy (AFM).
摘要翻译： 一种垂直磁记录介质，包括：（a）具有表面的非磁性基板; 和（b）形成在所述衬底表面上的层叠层，包括从所述衬底表面的重叠顺序：（i）磁软底层; （ii）用于晶体取向形成在其上的垂直磁记录材料层的层间结构; 和（iii）至少一个晶体取向的磁性硬垂直记录层; 其中所述磁软底层被溅射沉积在足够大的靶对衬底间隔处并且以足够低的气体压力被选择以使底层具有平均表面，其具有低于约0.3nm的低平均表面粗糙度Ra，如通过 原子力显微镜（AFM）。
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公开(公告)号：US6139981A
公开(公告)日：2000-10-31
申请号：US152324
申请日：1998-09-14
申请人： Elsie Yang Chuang , Phuong Nguyen , Qixu David Chen , Xing Song , Charles Leu , Thanh Thien Ha
发明人： Elsie Yang Chuang , Phuong Nguyen , Qixu David Chen , Xing Song , Charles Leu , Thanh Thien Ha
CPC分类号： G11B5/732 , G11B5/7325 , G11B5/8404 , Y10S428/90 , Y10T428/265
摘要： Adhesion between a deposited seed layer, e.g., a sputter-deposited NiP seed layer, on an alternate substrate, such as a glass, ceramic or glass-ceramic substrate, is significantly enhanced by depositing a chromium or chromium-alloy adhesion enhancement film between the substrate and seed layer. Magnetic recording media comprising a surface-oxidized NiP seed layer and chromium adhesion enhancement film exhibit low media noise and are suitable for high density longitudinal magnetic recording.
摘要翻译： 通过在铬与铬之间沉积铬或铬合金粘合增强膜，可显着提高沉积种子层（例如溅射沉积的NiP种子层）在交替衬底（如玻璃，陶瓷或玻璃 - 陶瓷衬底）上的附着力 底物和种子层。 包含表面氧化的NiP种子层和铬粘合增强膜的磁记录介质表现出低介质噪声，并且适用于高密度纵向磁记录。
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公开(公告)号：US06936353B1
公开(公告)日：2005-08-30
申请号：US10611308
申请日：2003-07-02
CPC分类号： G11B5/64 , G11B5/012 , G11B5/1278 , G11B5/656 , G11B5/667 , G11B5/82 , Y10T428/12465 , Y10T428/12868 , Y10T428/12875 , Y10T428/12986 , Y10T428/24942
摘要： Magnetic recording media having a magnetic layer with an easy magnetization axis lying about 45° out of plane of the magnetic layer is disclosed. SMNR from this media could be greatly improved from conventional longitudinal and perpendicular recording, because of an increase in the grain anisotropy that could be effectively written due to the angled recording configuration, resulting also in higher thermal stability, therefore, suitable for higher areal density recording.
摘要翻译： 公开了具有磁性层的磁记录介质，其易磁化轴位于磁性层的平面外约45°。 由于由于成角度的记录结构而可以有效地写入的晶粒各向异性的增加，所以来自该介质的SMNR可以从传统的纵向和垂直记录中大大改进，从而导致较高的热稳定性，因此适用于较高的面密度记录 。
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公开(公告)号：US06787251B1
公开(公告)日：2004-09-07
申请号：US10211331
申请日：2002-08-05
IPC分类号： G11B566
CPC分类号： G11B5/7325 , G11B5/8404 , Y10S428/90 , Y10T428/265
摘要： A bi-crystal magnetic recording medium, i.e., medium with Cr(200) and Co(11.0) orientations, having a CrW-containing underlayer in which the W content increases for improved lattice matching with a Co-alloy magnetic layer has high coercivity, high SMNR and high areal recording density.
摘要翻译： 双相磁记录介质，即具有Cr（200）和Co（11.0）取向的介质，其具有含CrW的底层，其中W含量增加以改善与Co合金磁性层的晶格匹配，具有高的矫顽力， 高SMNR和高面积记录密度。
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