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21. 发明申请

US20100221581A1 PROCESS FOR FABRICATING PATTERNED MAGNETIC RECORDING MEDIA 有权
标题翻译：制作图形磁记录介质的方法
公开(公告)号：US20100221581A1
公开(公告)日：2010-09-02
申请号：US12768616
申请日：2010-04-27
申请人： Kim Y. Lee , Hong Ying Wang , Nobuo Kurataka , Christopher Formato , David S. Kuo , Dieter K. Weller
发明人： Kim Y. Lee , Hong Ying Wang , Nobuo Kurataka , Christopher Formato , David S. Kuo , Dieter K. Weller
IPC分类号： G03F7/20 , G11B5/667
CPC分类号： G11B5/855 , G11B5/667 , G11B5/732
摘要： A method of fabricating a patterned magnetic recording medium, comprises steps of: (a) providing a layer stack including an uppermost non-magnetic interlayer; (b) forming a resist layer on the interlayer; (c) forming a first pattern comprising a first group of recesses extending through the resist layer and exposing a first group of spaced apart surface portions of the interlayer; (d) filling the first group of recesses with a layer of a hard mask material; (e) selectively removing the resist layer to form a second pattern comprising a second group of recesses extending through the hard mask layer and exposing a second group of spaced apart surface portions of the interlayer; and (f) filling the second group of recesses with a layer of a magnetically hard material forming a magnetic recording layer.
摘要翻译：一种制造图案化磁记录介质的方法，包括以下步骤：（a）提供包括最上面的非磁性中间层的层堆叠; （b）在所述中间层上形成抗蚀剂层; （c）形成第一图案，其包括延伸穿过抗蚀剂层的第一组凹槽，并暴露出中间层的第一组间隔开的表面部分; （d）用一层硬掩模材料填充第一组凹槽; （e）选择性地去除所述抗蚀剂层以形成第二图案，所述第二图案包括延伸穿过所述硬掩模层并暴露所述中间层的第二组间隔开的表面部分的第二组凹部; 和（f）用形成磁记录层的磁性硬质材料层填充第二组凹部。

22. 发明授权

US07029773B2 Method and system for magnetic recording using self-organized magnetic nanoparticles 失效
公开(公告)号：US07029773B2
公开(公告)日：2006-04-18
申请号：US10683383
申请日：2003-10-10
申请人： René J. M. van de Veerdonk , Xiaowei Wu , Dieter K. Weller
发明人： René J. M. van de Veerdonk , Xiaowei Wu , Dieter K. Weller
IPC分类号： G11B5/64
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/127 , G11B5/17 , G11B5/33 , G11B5/70605 , G11B5/712 , G11B5/714 , G11B5/74 , G11B5/743 , G11B5/82 , G11B11/002 , G11B11/03 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , H01F1/0054 , H01F1/009 , H01F1/068 , Y10T428/24942 , Y10T428/25 , Y10T428/2991 , Y10T428/2995 , Y10T428/2998
摘要： A method and system for magnetic recording using self-organized magnetic nanoparticles is disclosed. The method may include depositing surfactant coated nanoparticles on a substrate, wherein the surfactant coated nanoparticles represent first bits of recorded information. The surfactant coating is then removed from selected of the surfactant coated nanoparticles. The selected nanoparticles with their surfactant coating removed may then be designated to represent second bits of recorded information. The surfactant coated nanoparticles have a first saturation magnetic moment and the selected nanoparticles with the surfactant coating removed have a second saturation magnetic moment. Therefore, by selectively removing the surfactant coating from certain nanoparticles, a write operation for recording the first and second bits of information may be performed. A read operation may be carried out by detecting the different magnetic moments of the surfactant coated nanoparticles and the non-surfactant coated nanoparticles.

23. 发明授权

US06884328B2 Selective annealing of magnetic recording films 失效
标题翻译：磁记录膜的选择性退火
公开(公告)号：US06884328B2
公开(公告)日：2005-04-26
申请号：US10305456
申请日：2002-11-27
申请人： Dmitri Litvinov , Nisha Shukla , Erik Bjorn Svedberg , Sakhrat Khizroev , Dieter K. Weller
发明人： Dmitri Litvinov , Nisha Shukla , Erik Bjorn Svedberg , Sakhrat Khizroev , Dieter K. Weller
IPC分类号： G11B5/64 , G11B5/84 , G11B5/852 , C23C14/34 , B05D3/02
CPC分类号： G11B5/84 , G11B5/653 , G11B5/656 , G11B5/667 , G11B5/732 , G11B5/851 , G11B5/852
摘要： Magnetic films are annealed by radio frequency (RF) radiation. During the RF annealing process, the layers may be subjected to a magnetic field in order to control their anisotropy axes. The RF annealed layers are useful for applications such as longitudinal and perpendicular magnetic recording layers of magnetic data storage media.
摘要翻译：磁性膜通过射频（RF）辐射退火。在RF退火处理期间，可以对这些层进行磁场，以便控制其各向异性轴。 RF退火层可用于诸如磁数据存储介质的纵向和垂直磁记录层的应用。

24. 发明授权

US06777113B2 Multilayer films for optimized soft underlayer magnetic properties of dual layer perpendicular recording media 有权
标题翻译：用于优化双层垂直记录介质的软底层磁性能的多层膜
公开(公告)号：US06777113B2
公开(公告)日：2004-08-17
申请号：US10116577
申请日：2002-04-04
申请人： Isabel G. Trindade , Sharat Batra , Dieter K. Weller , Yukiko Kubota , Kurt W. Wierman , James K. Howard , Ganping Ju
发明人： Isabel G. Trindade , Sharat Batra , Dieter K. Weller , Yukiko Kubota , Kurt W. Wierman , James K. Howard , Ganping Ju
IPC分类号： G11B5667
CPC分类号： G11B5/66 , Y10T428/31833
摘要： A perpendicular magnetic recording medium includes a hard magnetic recording layer and a soft magnetic underlayer adjacent the hard magnetic recording layer. The soft magnetic underlayer includes first and second ferromagnetically coupled multilayer structures and a coupling layer positioned between the first and second multilayer structures for antiferromagnetically coupling the first and second multilayer structures. A magnetic disc drive storage system incorporating such a perpendicular magnetic recording medium and a method of making such a perpendicular magnetic recording medium are also included.
摘要翻译：垂直磁记录介质包括硬磁记录层和与硬磁记录层相邻的软磁性底层。软磁性底层包括第一和第二铁磁耦合多层结构以及位于第一和第二多层结构之间的用于反铁磁耦合第一和第二多层结构的耦合层。还包括一种包含这种垂直磁记录介质的磁盘驱动器存储系统和制造这种垂直磁记录介质的方法。

25. 发明授权

US06302940B2 Chemical synthesis of monodisperse and magnetic alloy nanocrystal containing thin films 失效
公开(公告)号：US06302940B2
公开(公告)日：2001-10-16
申请号：US09797605
申请日：2001-03-05
申请人： Christopher Bruce Murray , Shouheng Sun , Dieter K. Weller
发明人： Christopher Bruce Murray , Shouheng Sun , Dieter K. Weller
IPC分类号： B22F900
CPC分类号： B82Y25/00 , B22F9/24 , B22F2998/00 , C21B15/00 , G11B5/84 , H01F1/0063 , H01F10/123 , B22F1/0018
摘要： A method and structure for forming magnetic alloy nanoparticles includes forming a metal salt solution with a reducing agent and stabilizing ligands, introducing an organometallic compound into the metal salt solution to form a mixture, heating the mixture to a temperature between 260° and 300° C., and adding a flocculent to cause the magnetic alloy nanoparticles to precipitate out of the mixture without permanent agglomeration. The deposition of the alkane dispersion of FePt alloy particles, followed by the annealing results in the formation of a shiny FePt nanocrystalline thin film with coercivity ranging from 500 Oe to 6500 Oe.

26. 发明申请

US20130270221A1 METHOD FOR IMPROVING A PATTERNED PERPENDICULAR MAGNETIC RECORDING DISK WITH ANNEALING 有权
标题翻译：用于改进带有退火的图形磁性记录磁盘的方法
公开(公告)号：US20130270221A1
公开(公告)日：2013-10-17
申请号：US13449279
申请日：2012-04-17
申请人： Michael Konrad Grobis , Olav Hellwig , Ernesto E. Marinero , Andrew Thomas McCallum , Dieter K. Weller
发明人： Michael Konrad Grobis , Olav Hellwig , Ernesto E. Marinero , Andrew Thomas McCallum , Dieter K. Weller
IPC分类号： B05D3/10 , C21D9/00
CPC分类号： G11B5/855 , C22C1/02 , C22C19/07
摘要： A method for making a bit-patterned-media magnetic recording disk with discrete magnetic islands includes annealing the data islands after they have been formed by an etching process. A hard mask, such as a layer of silicon nitride or carbon, may be first formed on the recording layer and a patterned resist formed on the hard mask. The resist pattern is then transferred into the hard mask, which is used as the etch mask to etch the recording layer and form the discrete data islands. After the data islands are formed by the etching process, the patterned recording layer is annealed. The annealing may be done in a vacuum, or in an inert gas, like helium or argon, or in a forming gas such as a reducing atmosphere of argon plus hydrogen. The annealing improves the coercivity, the effective saturation magnetization and the thermal stability of the patterned media.
摘要翻译：用于制造具有离散磁岛的位图形介质磁记录盘的方法包括在通过蚀刻工艺形成数据岛之后退火数据岛。可以首先在记录层上形成诸如氮化硅或碳的一层的硬掩模和形成在硬掩模上的图案化抗蚀剂。然后将抗蚀剂图案转移到硬掩模中，其用作蚀刻掩模以蚀刻记录层并形成离散数据岛。在通过蚀刻工艺形成数据岛之后，对图案化记录层进行退火。退火可以在真空中或在诸如氦或氩的惰性气体中进行，或者在形成气体如氩气和氢气的还原气氛中进行。退火提高了图案化介质的矫顽力，有效饱和磁化强度和热稳定性。

27. 发明授权

US08492010B2 Silicon/gold seed structure for crystalline alignment in a film stack 有权
标题翻译：硅/金种子结构，用于膜叠层中的晶体取向
公开(公告)号：US08492010B2
公开(公告)日：2013-07-23
申请号：US12772179
申请日：2010-05-01
申请人： Olav Hellwig , Dieter K. Weller
发明人： Olav Hellwig , Dieter K. Weller
IPC分类号： G11B5/66
CPC分类号： G11B5/732 , G11B5/66 , G11B5/667 , G11B5/7325 , G11B5/855 , Y10T428/12076 , Y10T428/12465 , Y10T428/12472 , Y10T428/12674
摘要： A silicon/gold (Si/Au) bilayer seed structure is located in a film stack between an amorphous or crystalline lower layer and an upper layer with a well-defined crystalline structure. The seed structure includes a Si layer on the generally flat surface of the lower layer and a Au layer on the Si layer. The Si/Au interface initiates the growth of the Au layer with a face-centered-cubic (fcc) crystalline structure with the (111) plane oriented in-plane. The upper layer grown on the Au layer has a fcc or hexagonal-close-packed (hcp) crystalline structure. If the upper layer is a fcc material its [111] direction is oriented substantially perpendicular to the (111) plane of the Au layer and if the upper layer is a hcp material, its c-axis is oriented substantially perpendicular to the (111) plane of the Au layer.
摘要翻译：硅/金（Si / Au）双层种子结构位于非晶或结晶下层与具有明确定义的结晶结构的上层之间的膜叠层中。种子结构包括在下层的大致平坦表面上的Si层和Si层上的Au层。 Si / Au界面以（111）面定向在平面内的面心立方（fcc）晶体结构引发Au层的生长。在Au层上生长的上层具有fcc或六方密堆积（hcp）晶体结构。如果上层是fcc材料，其[111]方向定向成基本上垂直于Au层的（111）面，并且如果上层是hcp材料，则其c轴基本垂直于（111）面定向， Au层的平面。

28. 发明申请

US20130114165A1 FePt-C BASED MAGNETIC RECORDING MEDIA WITH ONION-LIKE CARBON PROTECTION LAYER 审中-公开
标题翻译：基于FePt-C的磁性记录介质，具有类似保护层的保护层
公开(公告)号：US20130114165A1
公开(公告)日：2013-05-09
申请号：US13290940
申请日：2011-11-07
申请人： Oleksandr Mosendz , Simone Pisana , Franck D. R. dit Rose , Dieter K. Weller
发明人： Oleksandr Mosendz , Simone Pisana , Franck D. R. dit Rose , Dieter K. Weller
IPC分类号： G11B5/48 , G11B5/64
CPC分类号： G11B5/72 , G11B5/65 , G11B5/712
摘要： A magnetic media for magnetic data recording having a plurality of magnetic grains protected by thin layers of graphitic carbon. The layers of graphitic carbon are formed in a manner similar to onion skins on an onion and can be constructed as single monatomic layers of carbon. The thin layers of graphitic carbon can be formed as layers of graphene or as fullerenes that either cover or partially encapsulate the magnetic gains. The layers of graphitic carbon provide excellent protection against corrosion and wear and greatly reduce magnetic spacing for improved magnetic performance.
摘要翻译：一种用于磁数据记录的磁介质，具有被薄层石墨碳保护的多个磁性颗粒。石墨碳层以与洋葱上的洋葱皮相似的方式形成，并且可以被构造为单个单原子层的碳。石墨碳的薄层可以形成为石墨烯层或作为覆盖或部分地包封磁增益的富勒烯。石墨碳层提供优异的防腐蚀和耐磨性保护，并大大减少磁间隔，以改善磁性能。

29. 发明授权

US08395984B2 Multilevel data structure 有权
标题翻译：多级数据结构
公开(公告)号：US08395984B2
公开(公告)日：2013-03-12
申请号：US12938233
申请日：2010-11-02
申请人： Duane C. Karns , Dieter K. Weller , William A. Challener , Edward Gage , David S. Kuo , Neil Deeman , Shih-Fu Lee , Koichi Wage
发明人： Duane C. Karns , Dieter K. Weller , William A. Challener , Edward Gage , David S. Kuo , Neil Deeman , Shih-Fu Lee , Koichi Wage
IPC分类号： G11B7/00
CPC分类号： G11B7/24088 , G11B7/0045 , G11B7/08547 , G11B7/1362
摘要： A method of performing writable optical recording of a medium to form multilevel oriented nano-structures therein, comprises steps of providing a disc-shaped, writable recording medium having a planar surface; and encoding data/information in the medium by forming a plurality of multilevel nano-structured pits in the surface by scanning with a focused spot of optical energy to form at least one data track therein, including scanning the optical spot in a cross-track direction while rotating the disc about a central axis.
摘要翻译：一种执行介质的可写光学记录以在其中形成多层次取向的纳米结构的方法，包括提供具有平坦表面的盘形可写记录介质的步骤; 以及通过用聚焦的光能点扫描在表面中形成多个多层纳米结构的凹坑来形成介质中的数据/信息，以在其中形成至少一个数据轨迹，包括沿横向方向扫描光点同时围绕中心轴旋转盘。

30. 发明申请

US20120315505A1 PERPENDICULAR MAGNETIC RECORDING DISK WITH MULTIPLE MAGNETIC LAYERS AND INTERMEDIATE DUAL NUCLEATION FILMS FOR CONTROL OF GRAIN SIZE 有权
标题翻译：具有多个磁性层的全磁性记录磁盘和用于控制颗粒尺寸的中间双核芯片
公开(公告)号：US20120315505A1
公开(公告)日：2012-12-13
申请号：US13156272
申请日：2011-06-08
申请人： Ernesto E. Marinero , Dieter K. Weller , Brian R. York
发明人： Ernesto E. Marinero , Dieter K. Weller , Brian R. York
IPC分类号： G11B5/66 , G11B5/65
CPC分类号： G11B5/66 , G11B5/65 , G11B5/7325 , G11B5/82
摘要： A perpendicular magnetic recording disk has a graded-anisotropy recording layer (RL) formed of at least two ferromagnetically exchange coupled CoPtCr-oxide magnetic layers (MAG1 and MAG2) with two nucleation films (NF1 and NF2) between the magnetic layers. NF1 is a metal film, preferably Ru or a Ru-based alloy like RuCr, sputter deposited on MAG1 at low pressure to a thickness between about 0.1-1.5 nm. NF2 is a metal oxide film, preferably an oxide of Ta, sputter deposited on NF1 at high pressure to a thickness between about 0.2-1.0 nm. MAG2 is sputter deposited over NF2. NF1 and NF2 provide a significant reduction in average grain size in the RL from a graded-anisotropy RL without nucleation films between MAG1 and MAG2, while also assuring that MAG1 and MAG2 are strongly exchange coupled.
摘要翻译：垂直磁记录盘具有由至少两个铁磁交换的CoPtCr-氧化物磁性层（MAG1和MAG2）与磁性层之间的两个成核膜（NF1和NF2）形成的渐变各向异性记录层（RL）。 NF1是金属膜，优选Ru或Ru基Ru合金，在低压下溅射沉积在MAG1上，厚度在约0.1-1.5nm之间。 NF2是金属氧化物膜，优选Ta的氧化物，在高压下溅射沉积在NF1上，厚度在约0.2-1.0nm之间。 MAG2溅射沉积在NF2上。 NF1和NF2从MAG1和MAG2之间没有成核膜的梯度各向异性RL提供RL中的平均晶粒尺寸的显着降低，同时还确保MAG1和MAG2强烈交换耦合。

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