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1. 发明申请

US20050122612A1 MAGNETIC RECORDING SYSTEM WITH PATTERNED MULTILEVEL PERPENDICULAR MAGNETIC RECORDING 失效
标题翻译：具有图形多项式磁记录的磁记录系统
公开(公告)号：US20050122612A1
公开(公告)日：2005-06-09
申请号：US10727703
申请日：2003-12-03
申请人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce Terris
发明人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce Terris
IPC分类号： G11B5/64 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/127 , G11B5/31 , G11B5/65 , G11B5/66 , G11B5/667 , G11B5/673 , G11B5/738 , G11B5/82 , G11B5/855
CPC分类号： G11B5/66 , B82Y10/00 , G11B5/743 , G11B5/855 , G11B2005/0021
摘要： A magnetic recording system, such as a magnetic recording disk drive, uses a patterned perpendicular magnetic recording medium where each magnetic block or island contains a stack of individual magnetic cells to provide multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This permits multiple magnetic levels or states to be recorded in each magnetic island.
摘要翻译：诸如磁记录盘驱动器的磁记录系统使用图案化的垂直磁记录介质，其中每个磁块或岛包含单个磁性单元的堆叠以提供多级记录。岛中的每个单元由材料或材料组成，以向单元提供垂直的磁各向异性并且是单个磁畴。每个单元通过非磁性间隔层与其岛中的其它单元磁耦合。因此，每个单元可以在两个方向（组成单元的层的平面内或外）中的一个方向上具有磁化（磁矩），并且该磁化独立于其岛中的其它单元的磁化。这允许在每个磁岛中记录多个磁级或状态。

2. 发明申请

US20050122609A1 Patterned multilevel perpendicular magnetic recording media 有权
标题翻译：图案多层垂直磁记录介质
公开(公告)号：US20050122609A1
公开(公告)日：2005-06-09
申请号：US10727826
申请日：2003-12-03
申请人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce Terris
发明人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce Terris
IPC分类号： G11B5/65 , G11B5/64 , G11B5/66 , G11B5/73 , G11B5/738 , G11B5/855 , G11B5/02 , G11B5/09 , G11B5/82
CPC分类号： G11C11/5607 , G11B5/66 , G11B5/746 , G11B5/855 , G11C11/161 , G11C11/1675
摘要： A patterned perpendicular magnetic recording medium has magnetic islands that contain stacks of individual magnetic cells to provide multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This permits multiple magnetic levels or states to be recorded in each magnetic island.
摘要翻译：图案化的垂直磁记录介质具有磁岛，其包含单个磁性单元的堆叠以提供多级记录。岛中的每个单元由材料或材料组成，以向单元提供垂直的磁各向异性并且是单个磁畴。每个单元通过非磁性间隔层与其岛中的其它单元磁耦合。因此，每个单元可以在两个方向（组成单元的层的平面内或外）中的一个方向上具有磁化（磁矩），并且该磁化独立于其岛中的其它单元的磁化。这允许在每个磁岛中记录多个磁级或状态。

3. 发明授权

US06947235B2 Patterned multilevel perpendicular magnetic recording media 有权
公开(公告)号：US06947235B2
公开(公告)日：2005-09-20
申请号：US10727826
申请日：2003-12-03
申请人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce David Terris
发明人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce David Terris
IPC分类号： G11B5/65 , G11B5/64 , G11B5/66 , G11B5/73 , G11B5/738 , G11B5/855 , G11B5/02
CPC分类号： G11C11/5607 , G11B5/66 , G11B5/746 , G11B5/855 , G11C11/161 , G11C11/1675
摘要： A patterned perpendicular magnetic recording medium has magnetic islands that contain stacks of individual magnetic cells to provide multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This permits multiple magnetic levels or states to be recorded in each magnetic island.

4. 发明授权

US06882488B1 Method for magnetic recording on patterned multilevel perpendicular media using variable write current 失效
标题翻译：使用可变写入电流在图案化多层垂直介质上进行磁记录的方法
公开(公告)号：US06882488B1
公开(公告)日：2005-04-19
申请号：US10727812
申请日：2003-12-03
申请人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce David Terris
发明人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce David Terris
IPC分类号： G11B5/00 , G11B5/027 , G11B5/02
CPC分类号： G11B5/027 , G11B2005/0029
摘要： A magnetic recording method uses a patterned perpendicular magnetic recording medium where each magnetic block or island contains a stack of individual magnetic cells to providing multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This permits multiple magnetic levels or states to be recorded in each magnetic island.
摘要翻译：磁记录方法使用图案化的垂直磁记录介质，其中每个磁块或岛包含单个磁性单元的堆叠以提供多级记录。岛中的每个单元由材料或材料组成，以向单元提供垂直的磁各向异性并且是单个磁畴。每个单元通过非磁性间隔层与其岛中的其它单元磁耦合。因此，每个单元可以在两个方向（组成单元的层的平面内或外）中的一个方向上具有磁化（磁矩），并且该磁化独立于其岛中的其它单元的磁化。这允许在每个磁岛中记录多个磁级或状态。

5. 发明授权

US06865044B1 Method for magnetic recording on patterned multilevel perpendicular media using thermal assistance and fixed write current 有权
标题翻译：使用热辅助和固定写入电流在图案化多层垂直介质上进行磁记录的方法
公开(公告)号：US06865044B1
公开(公告)日：2005-03-08
申请号：US10728231
申请日：2003-12-03
申请人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce David Terris
发明人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce David Terris
IPC分类号： G11B5/65 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/127 , G11B5/66 , G11B5/738 , G11B5/82 , G11B5/84 , G11B5/851 , H03M1/12
CPC分类号： G11B5/012 , G11B5/09 , G11B5/66 , G11B5/743 , G11B5/855 , G11B2005/0021
摘要： A method for magnetic recording uses a fixed write current with thermal assistance to record on a patterned perpendicular magnetic recording medium. The patterned medium has magnetic blocks or islands, each of which contains a stack of individual magnetic cells to provide multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island. This permits multiple magnetic levels or states to be recorded in each magnetic island.
摘要翻译：一种用于磁记录的方法使用具有热辅助的固定写入电流来记录在图案化的垂直磁记录介质上。图案化介质具有磁性块或岛，其中每一个包含单个磁性单元的堆叠以提供多级记录。岛中的每个单元由材料或材料组成，以向单元提供垂直的磁各向异性并且是单个磁畴。每个单元通过非磁性间隔层与其岛中的其它单元磁耦合。因此，每个单元可以在两个方向（组成单元的层的平面内或外）中的一个方向上具有磁化（磁矩），并且该磁化独立于其岛中的其它单元的磁化。这允许在每个磁岛中记录多个磁级或状态。

6. 发明授权

US06906879B1 Magnetic recording system with patterned multilevel perpendicular magnetic recording 失效
标题翻译：具有图案多层垂直磁记录的磁记录系统
公开(公告)号：US06906879B1
公开(公告)日：2005-06-14
申请号：US10727703
申请日：2003-12-03
申请人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce David Terris
发明人： Manfred Albrecht , Olav Hellwig , Guohan Hu , Bruce David Terris
IPC分类号： G11B5/64 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/127 , G11B5/31 , G11B5/65 , G11B5/66 , G11B5/667 , G11B5/673 , G11B5/738 , G11B5/82 , G11B5/855
CPC分类号： G11B5/66 , B82Y10/00 , G11B5/743 , G11B5/855 , G11B2005/0021
摘要： A magnetic recording system, such as a magnetic recording disk drive, uses a patterned perpendicular magnetic recording medium where each magnetic block or island contains a stack of individual magnetic cells to provide multilevel recording. Each cell in an island is formed of a material or set of materials to provide the cell with perpendicular magnetic anisotropy and is a single magnetic domain. Each cell is magnetically decoupled from the other cells in its island by nonmagnetic spacer layers. Thus each cell can have a magnetization (magnetic moment) in one of two directions (into or out of the plane of the layer making up the cell), and this magnetization is independent of the magnetization of the other cells in its island, This permits multiple magnetic levels or states to be recorded in each magnetic island.
摘要翻译：诸如磁记录盘驱动器的磁记录系统使用图案化的垂直磁记录介质，其中每个磁块或岛包含单个磁性单元的堆叠以提供多级记录。岛中的每个单元由材料或材料组成，以向单元提供垂直的磁各向异性并且是单个磁畴。每个单元通过非磁性间隔层与其岛中的其它单元磁耦合。因此，每个电池可以在两个方向之一（进入或离开构成电池的层的平面）中具有磁化（磁矩），并且该磁化独立于其岛中的其他电池的磁化。这允许要记录在每个磁岛中的多个磁级或状态。

7. 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。

8. 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。

9. 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。

10. 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。

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