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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

US07713591B2 Longitudinal patterned media with circumferential anisotropy for ultra-high density magnetic recording 有权
标题翻译：具有圆周各向异性的纵向图案介质，用于超高密度磁记录
公开(公告)号：US07713591B2
公开(公告)日：2010-05-11
申请号：US11209275
申请日：2005-08-22
申请人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
发明人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
IPC分类号： C23C14/48 , C23C14/58 , C23C14/14 , B05D5/00 , B05D3/06
CPC分类号： G11B5/852 , G11B5/855
摘要： An apparatus and method is disclosed for orienting the magnetic anisotropy of longitudinal patterned magnetic recording media. A disk-shaped longitudinal granular magnetic recording medium is provided having a high orientation ratio in the circumferential direction. The medium is then patterned to form a uniform array of magnetic islands. The magnetic islands are then irradiated with ions to increase the magnetic exchange coupling between the grains of each island. This aligns the axes of magnetic anisotropy of the individual grains with the average axis of magnetic anisotropy of the grains, thereby aligning the magnetic anisotropy of each island along the circumferential direction.
摘要翻译：公开了用于定向纵向图案化磁记录介质的磁各向异性的装置和方法。在圆周方向上具有高取向比的圆盘状纵向粒状磁记录介质。然后将介质图案化以形成均匀的磁岛阵列。然后用离子照射磁岛以增加每个岛的颗粒之间的磁交换耦合。使各晶粒的磁各向异性轴与晶粒的磁各向异性的平均轴对齐，从而沿着圆周方向对准各岛的磁各向异性。

4. 发明申请

US20070042229A1 Longitudinal patterned media with circumferential anisotropy for ultra-high density magnetic recording 有权
标题翻译：具有圆周各向异性的纵向图案介质，用于超高密度磁记录
公开(公告)号：US20070042229A1
公开(公告)日：2007-02-22
申请号：US11209275
申请日：2005-08-22
申请人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
发明人： Manfred Albrecht , Andreas Moser , Natacha Supper , Bruce Terris
IPC分类号： G11B5/65 , B05D5/12 , B29C71/04
CPC分类号： G11B5/852 , G11B5/855
摘要： An apparatus and method is disclosed for orienting the magnetic anisotropy of longitudinal patterned magnetic recording media. A disk-shaped longitudinal granular magnetic recording medium is provided having a high orientation ratio in the circumferential direction. The medium is then patterned to form a uniform array of magnetic islands. The magnetic islands are then irradiated with ions to increase the magnetic exchange coupling between the grains of each island. This aligns the axes of magnetic anisotropy of the individual grains with the average axis of magnetic anisotropy of the grains, thereby aligning the magnetic anisotropy of each island along the circumferential direction.
摘要翻译：公开了用于定向纵向图案化磁记录介质的磁各向异性的装置和方法。在圆周方向上具有高取向比的圆盘状纵向粒状磁记录介质。然后将介质图案化以形成均匀的磁岛阵列。然后用离子照射磁岛以增加每个岛的颗粒之间的磁交换耦合。使各晶粒的磁各向异性轴与晶粒的磁各向异性的平均轴对齐，从而沿着圆周方向对准各岛的磁各向异性。

5. 发明申请

US20060176620A1 Memory cell and programmable logic having ferromagnetic structures exhibiting the extraordinary hall effect 有权
标题翻译：具有铁磁结构的存储单元和可编程逻辑具有非凡的霍尔效应
公开(公告)号：US20060176620A1
公开(公告)日：2006-08-10
申请号：US11348124
申请日：2006-02-06
申请人： Dafine Ravelosona , Bruce Terris
发明人： Dafine Ravelosona , Bruce Terris
IPC分类号： G11B5/33
CPC分类号： G11C11/18 , G11B5/193 , G11C11/5607
摘要： Memory cell structures make use of the extraordinary Hall effect (EHE) for increased data storage capacity. A memory cell has a ferromagnetic structure which includes at least a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer in between the first and the second ferromagnetic layers. The first and the second ferromagnetic layers exhibit perpendicular magnetic anisotropy and have magnetic moments which are set in accordance with one of a plurality of magnetic orientation sets of the ferromagnetic structure, and the ferromagnetic structure exhibits one of a plurality of predetermined extraordinary Hall resistances RH in accordance with the magnetic orientation set. The extraordinary Hall resistance is exhibited between first and second ends of the ferromagnetic structure across a path which intersects a bias current path between third and fourth ends of the ferromagnetic structure. Thus, the memory cell has at least four memory states including a first memory state associated with a first RH exhibited when the first and the second ferromagnetic layers are set to first magnetic orientations, a second memory state associated with a second RH exhibited when the first ferromagnetic layer is set to the first magnetic orientation and the second ferromagnetic layer is set to a second magnetic orientation, a third memory state associated with a third RH exhibited when the first ferromagnetic layer is set to the second magnetic orientation and the second ferromagnetic layer is set to the first magnetic orientation, and a fourth memory state associated with a fourth RH exhibited when the first and the second ferromagnetic layers are set to the second magnetic orientations. Programmable logic which also makes use of the EHE is also described.
摘要翻译：存储单元结构利用非凡的霍尔效应（EHE）来提高数据存储容量。存储单元具有铁磁结构，其包括在第一和第二铁磁层之间的至少第一铁磁层，第二铁磁层和间隔层。第一和第二铁磁层表现出垂直的磁各向异性，并且具有根据铁磁结构的多个磁取向组中的一个设置的磁矩，并且铁磁结构呈现出多个预定的非常霍尔电阻R < 根据磁性取向设定。在铁磁结构的第一和第二端之间横跨与铁磁结构的第三和第四端之间的偏置电流路径相交的路径呈现非凡的霍尔电阻。因此，存储单元具有至少四个存储器状态，包括当第一和第二铁磁层被设置为第一磁性取向时展示的第一存储器状态，与第一存储器状态相关联，第二存储器状态相关联当第一铁磁层被设置为第一磁性取向并且第二铁磁层被设置为第二磁性取向时，展示第二R H H N，当第三铁磁层被设置为第二磁性取向时，显示与第三RH相关联的第三存储状态，将第一铁磁层设定为第二磁性取向，将第二铁磁层设定为第一磁性取向，并且当第一和第二铁磁层被设置为第二磁方向。还描述了也利用EHE的可编程逻辑。

6. 发明申请

US20050190479A1 Thermally-assisted perpendicular magnetic recording system and head 失效
标题翻译：热辅助垂直磁记录系统和头
公开(公告)号：US20050190479A1
公开(公告)日：2005-09-01
申请号：US10789907
申请日：2004-02-27
申请人： Bruce Terris , Jan-Ulrich Thiele
发明人： Bruce Terris , Jan-Ulrich Thiele
IPC分类号： G11B5/00 , G11B5/012 , G11B5/02 , G11B5/11 , G11B5/127 , G11B5/31 , G11B5/39 , G11B11/00
CPC分类号： G11B5/315 , G11B5/1278 , G11B5/314 , G11B5/3967 , G11B2005/0021
摘要： A thermally-assisted perpendicular magnetic recording head includes a write pole tip for generating a magnetic write field in the perpendicular magnetic recording layer, a magnetic shield that confines the write field essentially to the data track to be recorded, an electrically resistive heater for heating the recording layer in the presence of the write field, and a return pole. The write pole tip width essentially defines data track width and is substantially surrounded by the magnetic shield. The shield may include side shields with ends located on opposite sides of the write pole tip and a trailing shield having an end spaced from the write pole tip. The resistive heater is wider than the data track and heats both the data track and adjacent tracks, but thermally-assisted magnetic recording occurs only in the data track because the confined magnetic field in the adjacent tracks is less than the required write field.
摘要翻译：热辅助垂直磁记录头包括用于在垂直磁记录层中产生磁写入场的写磁极端头，将写磁场基本上限制于要记录的数据磁道的磁屏蔽，用于加热在存在写字段的情况下，记录层和返回极。写极尖宽度基本上限定数据磁道宽度并且基本上被磁屏蔽包围。屏蔽件可以包括端部位于写入磁极尖端的相对侧上的侧部屏蔽件，以及具有与写入磁极尖端间隔开的端部的后屏蔽件。电阻加热器比数据轨道宽，并加热数据轨道和相邻轨道，但热辅助磁记录仅发生在数据轨道中，因为相邻轨道中的受限磁场小于所需的写入场。

7. 发明申请

US20050104101A1 Spin-current switched magnetic memory element suitable for circuit integration and method of fabricating the memory element 有权
标题翻译：适用于电路集成的旋转电流开关磁存储元件和制造存储元件的方法
公开(公告)号：US20050104101A1
公开(公告)日：2005-05-19
申请号：US10715376
申请日：2003-11-19
申请人： Jonathan Sun , Rolf Allenspach , Stuart Stephen Parkin , John Slonczewski , Bruce Terris
发明人： Jonathan Sun , Rolf Allenspach , Stuart Stephen Parkin , John Slonczewski , Bruce Terris
IPC分类号： G11C11/16 , H01F10/32 , H01F41/30 , H01L27/22 , H01L29/76 , H01L43/08
CPC分类号： H01L43/02 , B82Y25/00 , G11C11/16 , G11C11/161 , H01F10/3254 , H01F10/3263 , H01F10/3286 , H01F41/308 , H01L27/222 , H01L43/08 , H01L43/12
摘要： A magnetic memory element switchable by current injection includes a plurality of magnetic layers, at least one of the plurality of magnetic layers having a perpendicular magnetic anisotropy component and including a current-switchable magnetic moment, and at least one barrier layer formed adjacent to the plurality of magnetic layers (e.g., between two of the magnetic layers). The memory element has the switching threshold current and device impedance suitable for integration with complementary metal oxide semiconductor (CMOS) integrated circuits.
摘要翻译：通过电流注入可切换的磁存储元件包括多个磁性层，所述多个磁性层中的至少一个具有垂直磁各向异性分量并且包括电流可切换磁矩，以及至少一个与所述多个磁性层相邻形成的阻挡层的磁性层（例如，两层磁性层之间）。存储元件具有适合与互补金属氧化物半导体（CMOS）集成电路集成的开关阈值电流和器件阻抗。

8. 发明申请

US20050170212A1 Enhancement of magnetic media recording performance using ion irradiation to tailor exchange coupling 有权
标题翻译：使用离子辐射增强磁性介质记录性能，从而定制交换耦合
公开(公告)号：US20050170212A1
公开(公告)日：2005-08-04
申请号：US10768347
申请日：2004-01-29
申请人： Manfred Albrecht , Charles Rettner , Bruce Terris , Thomas Thomson
发明人： Manfred Albrecht , Charles Rettner , Bruce Terris , Thomas Thomson
IPC分类号： G11B5/84 , G11B5/72 , B05D1/04
CPC分类号： G11B5/84
摘要： Magnetic medium recording performance can be enhanced by irradiating a magnetic medium with ions having an acceleration voltage of between 10 keV and 100 keV to induce exchange coupling between grains of the magnetic medium. The magnetic medium is exposed to a cumulative ion dosage of between 1013 ions/cm2 and 1017 ions/cm2 using a non-patterned exposure of the magnetic medium. The ions can be selected from the group consisting of H+, He+, Ne+, Ar+, Kr+, and Xe+. Alternatively, the ions can be selected from the group consisting of Ga+, Hg+, and In+.
摘要翻译：通过用具有10keV至100keV的加速电压的离子照射磁性介质，可以提高磁性介质记录性能，以引起磁性介质颗粒之间的交换耦合。磁介质暴露于10-12个离子/ cm 2和10个/ 17个/ cm 2之间的累积离子剂量， / SUP>使用磁性介质的非图案曝光。离子可以选自H +，H +，H +，O +，O + Kr> + + +。。and and and and and。。。。。。。。。。。。。。。。或者，离子可以选自Ga +，Hg +和/和SUP + +。

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