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1. 发明申请

US20100273028A1 FABRICATING MAGNETIC RECORDING MEDIA ON PATTERNED SEED LAYERS 有权
标题翻译：在图形层上制作磁记录媒体
公开(公告)号：US20100273028A1
公开(公告)日：2010-10-28
申请号：US12827080
申请日：2010-06-30
申请人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
发明人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
IPC分类号： G11B5/84 , G11B5/855 , G11B5/62
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/855
摘要： Patterned media and associated methods of fabrication are provided in which vertical magnetic grains are grown on a patterned seed layer. The patterned seed layer includes a matrix of islands of a first seed material. Each island of first seed material is separated from other islands by a region of second seed material. The first seed material is selected to initiate growth of magnetic material, and the second seed material is selected to initiate growth of non-magnetic material. Subsequently, magnetic material is grown on the first seed material and non-magnetic material is grown on the second seed material. Deposition may be simultaneously. The magnetic and non-magnetic materials form well-defined vertical columns over the first and second seed materials respectively. Thus, each island behaves as an isolated magnetic unit, which switches independently from its neighbor units, which are magnetically separated by the non-magnetic material.
摘要翻译：提供了图案化的介质和相关联的制造方法，其中在图案种子层上生长垂直磁性颗粒。图案化种子层包括第一种子材料的岛的基质。第一种子材料的每个岛通过第二种子材料的区域与其他岛屿分离。选择第一种子材料以引发磁性材料的生长，并且选择第二种子材料以引发非磁性材料的生长。随后，在第一种子材料上生长磁性材料，并且在第二种子材料上生长非磁性材料。沉积可能同时进行。磁性和非磁性材料分别在第一种子材料和第二种子材料上形成明确的垂直柱。因此，每个岛作为孤立的磁性单元，其独立地从其相邻单元切换，其被非磁性材料磁分离。

2. 发明授权

US07776388B2 Fabricating magnetic recording media on patterned seed layers 有权
标题翻译：在图案种子层上制造磁记录介质
公开(公告)号：US07776388B2
公开(公告)日：2010-08-17
申请号：US11850165
申请日：2007-09-05
申请人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
发明人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
IPC分类号： B05D5/12 , C23F1/02
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/855
摘要： Patterned media and associated methods of fabrication are provided in which vertical magnetic grains are grown on a patterned seed layer. The patterned seed layer includes a matrix of islands of a first seed material. Each island of first seed material is separated from other islands by a region of second seed material. The first seed material is selected to initiate growth of magnetic material, and the second seed material is selected to initiate growth of non-magnetic material. Subsequently, magnetic material is grown on the first seed material and non-magnetic material is grown on the second seed material. Deposition may be simultaneously. The magnetic and non-magnetic materials form well-defined vertical columns over the first and second seed materials respectively. Thus, each island behaves as an isolated magnetic unit, which switches independently from its neighbor units, which are magnetically separated by the non-magnetic material.
摘要翻译：提供了图案化的介质和相关联的制造方法，其中在图案种子层上生长垂直磁性颗粒。图案化种子层包括第一种子材料的岛的基质。第一种子材料的每个岛通过第二种子材料的区域与其他岛屿分离。选择第一种子材料以引发磁性材料的生长，并且选择第二种子材料以引发非磁性材料的生长。随后，在第一种子材料上生长磁性材料，并且在第二种子材料上生长非磁性材料。沉积可能同时进行。磁性和非磁性材料分别在第一种子材料和第二种子材料上形成明确的垂直柱。因此，每个岛作为孤立的磁性单元，其独立地从其相邻单元切换，其被非磁性材料磁分离。

3. 发明授权

US08546001B2 Fabricating magnetic recording media on patterned seed layers 有权
标题翻译：在图案种子层上制造磁记录介质
公开(公告)号：US08546001B2
公开(公告)日：2013-10-01
申请号：US12827080
申请日：2010-06-30
申请人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
发明人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
IPC分类号： G11B5/66 , B05D5/12
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/855
摘要： Patterned media and associated methods of fabrication are provided in which vertical magnetic grains are grown on a patterned seed layer. The patterned seed layer includes a matrix of islands of a first seed material. Each island of first seed material is separated from other islands by a region of second seed material. The first seed material is selected to initiate growth of magnetic material, and the second seed material is selected to initiate growth of non-magnetic material. Subsequently, magnetic material is grown on the first seed material and non-magnetic material is grown on the second seed material. Deposition may be simultaneously. The magnetic and non-magnetic materials form well-defined vertical columns over the first and second seed materials respectively. Thus, each island behaves as an isolated magnetic unit, which switches independently from its neighbor units, which are magnetically separated by the non-magnetic material.
摘要翻译：提供了图案化的介质和相关联的制造方法，其中在图案种子层上生长垂直磁性颗粒。图案化种子层包括第一种子材料的岛的基质。第一种子材料的每个岛通过第二种子材料的区域与其他岛屿分离。选择第一种子材料以引发磁性材料的生长，并且选择第二种子材料以引发非磁性材料的生长。随后，在第一种子材料上生长磁性材料，并且在第二种子材料上生长非磁性材料。沉积可能同时进行。磁性和非磁性材料分别在第一种子材料和第二种子材料上形成明确的垂直柱。因此，每个岛作为孤立的磁性单元，其独立地从其相邻单元切换，其被非磁性材料磁分离。

4. 发明申请

US20090059430A1 FABRICATING MAGNETIC RECORDING MEDIA ON PATTERNED SEED LAYERS 有权
标题翻译：在图形层上制作磁记录媒体
公开(公告)号：US20090059430A1
公开(公告)日：2009-03-05
申请号：US11850165
申请日：2007-09-05
申请人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
发明人： Elizabeth Dobisz , David Margulies , Olav Hellwig , Xiao Z. Wu
IPC分类号： G11B15/10
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/855
摘要： Patterned media and associated methods of fabrication are provided in which vertical magnetic grains are grown on a patterned seed layer. The patterned seed layer includes a matrix of islands of a first seed material. Each island of first seed material is separated from other islands by a region of second seed material. The first seed material is selected to initiate growth of magnetic material, and the second seed material is selected to initiate growth of non-magnetic material. Subsequently, magnetic material is grown on the first seed material and non-magnetic material is grown on the second seed material. Deposition may be simultaneously. The magnetic and non-magnetic materials form well-defined vertical columns over the first and second seed materials respectively. Thus, each island behaves as an isolated magnetic unit, which switches independently from its neighbor units, which are magnetically separated by the non-magnetic material.
摘要翻译：提供了图案化的介质和相关联的制造方法，其中在图案种子层上生长垂直磁性颗粒。图案化种子层包括第一种子材料的岛的基质。第一种子材料的每个岛通过第二种子材料的区域与其他岛屿分离。选择第一种子材料以引发磁性材料的生长，并且选择第二种子材料以引发非磁性材料的生长。随后，在第一种子材料上生长磁性材料，并且在第二种子材料上生长非磁性材料。沉积可能同时进行。磁性和非磁性材料分别在第一种子材料和第二种子材料上形成明确的垂直柱。因此，每个岛作为孤立的磁性单元，其独立地从其相邻单元切换，其被非磁性材料磁分离。

5. 发明申请

US20060263643A1 Laminated magnetic thin films with weak antiferromagnetic coupling for perpendicular magnetic recording 有权
公开(公告)号：US20060263643A1
公开(公告)日：2006-11-23
申请号：US11134746
申请日：2005-05-19
申请人： Eric Fullerton , Olav Hellwig , Byron Lengsfield , David Margulies
发明人： Eric Fullerton , Olav Hellwig , Byron Lengsfield , David Margulies
IPC分类号： G11B5/66
CPC分类号： G11B5/012 , G11B5/66 , G11B2005/0002
摘要： The invention uses an upper and lower magnetic layer of a laminated magnetic layer structure that includes an AF spacer layer that results in weak antiferromagnetic coupling of the magnetic layers that is insufficient to cause either of the layers to switch so that the magnetic orientations of the two ferromagnetic layers remain parallel. An advantage of the invention is that the AF-coupling tends to anti-correlate the noise in the two layers. The weak AF coupling according to the invention is believed to act at the transition boundaries in the media to cause some of the noise domains to be oriented antiparallel and the noise to be less correlated than would be the case without the AF coupling and thereby to achieve improved SNR.

6. 发明授权

US08399051B1 Method for making a patterned perpendicular magnetic recording disk having a FePt or CoPt chemically ordered recording layer 有权
标题翻译：制造具有FePt或CoPt化学有序记录层的图案化垂直磁记录盘的方法
公开(公告)号：US08399051B1
公开(公告)日：2013-03-19
申请号：US13248086
申请日：2011-09-29
申请人： Olav Hellwig , Jeffrey S. Lille , Andrew Thomas McCallum , Oleksandr Mosendz , Dieter K. Weller
发明人： Olav Hellwig , Jeffrey S. Lille , Andrew Thomas McCallum , Oleksandr Mosendz , Dieter K. Weller
IPC分类号： B05D5/12
CPC分类号： G11B5/855
摘要： A method for making a bit-patterned-media (BPM) magnetic recording disk includes depositing a FePt (or CoPt) alloy recording layer, and then depositing a sealing layer on the FePt layer before high-temperature annealing. The high-temperature annealing causes the FePt to become substantially chemically-ordered in the L10 phase. After annealing, the sealing layer is removed. The sealing layer prevents nanoclustering and agglomeration of the FePt material at the surface of the FePt layer and the sealing layer, which would result in undesirable high surface roughness of the FePt, making patterning of the FePt layer difficult. The FePt layer can be patterned into the discrete islands for the BPM disk either before deposition of the sealing layer or after deposition and removal of the sealing layer. After patterning and removal of the sealing layer, the disk protective overcoat is deposited over the discrete data islands.
摘要翻译：一种制造位图形介质（BPM）磁记录盘的方法包括沉积FePt（或CoPt）合金记录层，然后在高温退火之前在FePt层上沉积密封层。高温退火使FePt在L10相中变得基本化学排序。退火后，去除密封层。密封层防止FePt材料在FePt层和密封层的表面的纳米聚集和聚集，这将导致FePt的不希望的高表面粗糙度，使得FePt层的图案化变得困难。在沉积密封层之前或在沉积和去除密封层之后，FePt层可以被图案化成用于BPM盘的离散岛。在图案化和去除密封层之后，盘保护外涂层沉积在离散的数据岛上。

7. 发明授权

US08252153B2 Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches 有权
标题翻译：具有磁化伺服柱和相对磁化的伺服沟槽的伺服区域的图案化介质垂直磁记录盘
公开(公告)号：US08252153B2
公开(公告)日：2012-08-28
申请号：US13103143
申请日：2011-05-09
申请人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
发明人： Thomas R Albrecht , Zvonimir Z. Bandic , Olav Hellwig , Gabriel Zeltzer
IPC分类号： C23C14/00 , C23C14/32
CPC分类号： G11B5/82 , B82Y10/00 , C23C14/04 , C23C14/16 , G11B5/59688 , G11B5/743 , G11B5/746 , G11B5/855
摘要： A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the height of the servo pillars is less than the spacing between the servo pillars. A magnetic recording material with perpendicular magnetic anisotropy is deposited over the entire disk substrate, which results in magnetic material on the tops of the data pillars and servo pillars and in the servo trenches. The material in the data trenches is either nonmagnetic or discontinuous. After the application of a high DC magnetic field in one perpendicular direction and a low DC magnetic field in the opposite direction, the resulting disk has patterned servo sectors with servo pillars all magnetized in the same perpendicular direction and servo trenches magnetized in the opposite perpendicular direction.
摘要翻译：图案化的垂直磁记录盘具有预先图案化的盘基片，其具有布置在数据区域和伺服区域中的柱状物和沟槽。在数据区域中，数据柱的高度等于或大于数据柱之间的间距，而在伺服区域中，伺服柱的高度小于伺服柱之间的间距。具有垂直磁各向异性的磁记录材料沉积在整个盘基底上，这导致数据柱和伺服柱顶部以及伺服槽中的磁性材料。数据沟槽中的材料是非磁性的或不连续的。在相反方向上在一个垂直方向和低DC磁场上施加高DC磁场之后，所得到的盘具有带有伺服柱的图案化伺服扇区，其中所有伺服柱都在相同的垂直方向上被磁化，并且伺服沟槽在相反的垂直方向上被磁化。

8. 发明申请

US20110268993A1 SILICON/GOLD SEED STRUCTURE FOR CRYSTALLINE ALIGNMENT IN A FILM STACK 有权
标题翻译：硅胶/黄金结晶在电影胶卷中的结晶对齐
公开(公告)号：US20110268993A1
公开(公告)日：2011-11-03
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： G11B5/62 , G11B5/66 , G11B5/738
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。

9. 发明授权

US08021769B2 Patterned perpendicular magnetic recording medium with exchange coupled recording layer structure and magnetic recording system using the medium 有权
标题翻译：具有交换耦合记录层结构的图案垂直磁记录介质和使用介质的磁记录系统
公开(公告)号：US08021769B2
公开(公告)日：2011-09-20
申请号：US11751823
申请日：2007-05-22
申请人： Andreas Klaus Berger , Eric E. Fullerton , Olav Hellwig , Byron Hassberg Lengsfield, III , Ernesto E. Marinero
发明人： Andreas Klaus Berger , Eric E. Fullerton , Olav Hellwig , Byron Hassberg Lengsfield, III , Ernesto E. Marinero
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , G11B5/65 , G11B5/855
摘要： A patterned perpendicular magnetic recording medium has discrete magnetic islands, each of which has a recording layer (RL) structure that comprises two exchange-coupled ferromagnetic layers. The RL structure may be an “exchange-spring” RL structure with an upper ferromagnetic layer (MAG2), sometimes called the exchange-spring layer (ESL), ferromagnetically coupled to a lower ferromagnetic layer (MAG1), sometimes called the media layer (ML). The RL structure may also include a coupling layer (CL) between MAG1 and MAG2 that permits ferromagnetic coupling. The interlayer exchange coupling between MAG1 and MAG2 may be optimized, in part, by adjusting the materials and thickness of the CL. The RL structure may also include a ferromagnetic lateral coupling layer (LCL) that is in contact with at least one of MAG1 and MAG2 for mediating intergranular exchange coupling in the ferromagnetic layer or layers with which it is in contact (MAG2 or MAG1). The ferromagnetic alloy in the LCL has significantly greater intergranular exchange coupling than the ferromagnetic alloy with which it is in contact (MAG2 or MAG1).
摘要翻译：图案化的垂直磁记录介质具有离散的磁岛，每个磁岛具有包含两个交换耦合的铁磁层的记录层（RL）结构。 RL结构可以是具有上铁磁层（MAG2）的“交换弹簧”RL结构，有时称为交换弹簧层（ESL），铁磁耦合到下铁磁层（MAG1），有时称为介质层 ML）。 RL结构还可以包括允许铁磁耦合的MAG1和MAG2之间的耦合层（CL）。可以通过调整CL的材料和厚度来部分地优化MAG1和MAG2之间的层间交换耦合。 RL结构还可以包括与MAG1和MAG2中的至少一个接触的铁磁侧向耦合层（LCL），用于介导与其接触的铁磁层（MAG2或MAG1）中的晶间交换耦合。 LCL中的铁磁合金与其接触的铁磁合金（MAG2或MAG1）具有明显更大的晶间交换耦合。

10. 发明授权

US07846565B2 Perpendicular magnetic recording disk drive with patterned disk having capping layer for suppression of surface diffusion of trench material 有权
标题翻译：具有图案化盘的垂直磁记录盘驱动器，其具有用于抑制沟槽材料的表面扩散的覆盖层
公开(公告)号：US07846565B2
公开(公告)日：2010-12-07
申请号：US12687187
申请日：2010-01-14
申请人： Eric E. Fullerton , Olav Hellwig
发明人： Eric E. Fullerton , Olav Hellwig
IPC分类号： G11B5/66
CPC分类号： G11B5/65 , G11B5/66 , G11B5/667 , G11B5/7325 , G11B5/855
摘要： A magnetic recording disk drive has a patterned perpendicular magnetic recording disk of the type that has spaced-apart pillars with magnetic material on their ends and with trenches between the pillars that are nonmagnetic regions. A nonmagnetic capping layer is located in the trenches above the nonmagnetic regions. The substrate has diffusion material in the trenches that when heated will diffuse into the magnetic recording layer material and chemically react with it. The pillars are formed of material that will not diffuse into the recording layer. The recording layer is formed over the entire substrate and a nonmagnetic capping layer that is not chemically reactive with the diffusion material is formed over the recording layer in the trenches. The substrate is annealed to cause the recording layer material in the trenches and the material in the substrate to diffuse into one another and chemically react to render the trenches nonmagnetic. The capping layer suppresses the diffusion of material from the substrate to the surface in the trenches and thus prevents migration of diffusion material to the recording layer material on the ends of the pillars.
摘要翻译：磁记录盘驱动器具有图案化的垂直磁记录盘，其具有在其端部上具有磁性材料的间隔开的柱，并且在作为非磁性区域的柱之间的沟槽。非磁性覆盖层位于非磁性区域上方的沟槽中。衬底在沟槽中具有扩散材料，当加热时扩散材料将扩散到磁记录层材料中并与其发生化学反应。支柱由不会扩散到记录层中的材料形成。记录层形成在整个基板上，并且在沟槽中的记录层上形成与扩散材料不具有化学反应性的非磁性覆盖层。将衬底退火以使沟槽中的记录层材料和衬底中的材料彼此扩散并进行化学反应以使沟槽成为非磁性的。覆盖层抑制材料从衬底到沟槽表面的扩散，从而防止扩散材料向支柱端部的记录层材料迁移。

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