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1. 发明授权

US08081542B1 Thermally-assisted recording (TAR) disk drive with patterned multilevel media and laser with power modulation 有权
标题翻译：热辅助记录（TAR）磁盘驱动器，带有图形化多媒体和带功率调制的激光器
公开(公告)号：US08081542B1
公开(公告)日：2011-12-20
申请号：US12942206
申请日：2010-11-09
申请人： Michael Konrad Grobis , Barry Cushing Stipe , Dieter K. Weller , Gabriel Zeltzer
发明人： Michael Konrad Grobis , Barry Cushing Stipe , Dieter K. Weller , Gabriel Zeltzer
IPC分类号： G11B7/085 , G11B5/02
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/6088 , G11B5/653 , G11B5/746 , G11B5/82 , G11B5/855 , G11B2005/0021
摘要： A thermally-assisted recording (TAR) patterned-media magnetic recording disk drive has a perpendicular patterned-media disk with multilevel data islands and a laser capable of supplying multiple levels of output power to a near-field transducer (NFT). If there are only two cells in each island, each island is formed of an upper cell of magnetic material with a coercivity HC1 and a Curie temperature TC1, a lower cell of magnetic material with a coercivity HC2 and a Curie temperature TC2 greater than TC1, and a nonmagnetic spacer layer between the two cells. Each cell is formed of high-anisotropy material so as to have an anisotropy field greater than the magnetic write field. The TAR laser is capable of supplying at least two levels of output power to the NFT to allow the islands to be heated to two distinct temperatures so that the two cells in an island can be written so as to have either the same or opposite magnetizations.
摘要翻译：热辅助记录（TAR）图案介质磁记录盘驱动器具有具有多级数据岛的垂直图案化媒体盘和能够向近场换能器（NFT）提供多级输出功率的激光器。如果每个岛中只有两个电池，每个岛由具有矫顽力HC1和居里温度TC1的磁性材料的上电池形成，具有矫顽力HC2和居里温度TC2大于TC1的磁性材料的下电池，和两个电池之间的非磁性间隔层。每个单元由高各向异性材料形成，以具有大于磁写入场的各向异性场。 TAR激光器能够向NFT提供至少两个级别的输出功率，以允许岛被加热到两个不同的温度，使得岛中的两个单元可被写入以具有相同或相反的磁化。

2. 发明授权

US08514672B2 Near-field transducer with thermal sensor and system for clocking write data in a patterned-media magnetic recording disk drive 有权
标题翻译：具有热传感器的近场传感器和用于在图案化介质磁记录磁盘驱动器中写入数据的系统
公开(公告)号：US08514672B2
公开(公告)日：2013-08-20
申请号：US12862633
申请日：2010-08-24
申请人： Michael Konrad Grobis , Barry Cushing Stipe
发明人： Michael Konrad Grobis , Barry Cushing Stipe
IPC分类号： G11B5/00
CPC分类号： G11B5/314 , B82Y10/00 , G11B5/6088 , G11B5/743 , G11B5/746 , G11B2005/001 , G11B2005/0021
摘要： A near-field transducer (NFT) has a primary tip that concentrates the oscillating charge of the NFT onto a substrate, such as magnetic recording medium, to heat regions of the medium, and a secondary tip. The secondary tip is located close to a temperature sensor, such as an electrical conductor whose resistance varies with temperature. The temperature sensor senses heat from the secondary tip and thus properties of the substrate like surface topography and the presence or absence of metallic material. The NFT can be part of a bit-patterned media (BPM) thermally-assisted recording (TAR) disk drive. The temperature sensor output is used to control the write pulses from the disk drive's write head so the magnetic write field is synchronized with the location of the magnetic data islands.
摘要翻译：近场换能器（NFT）具有将NFT的振荡电荷集中到诸如磁记录介质的基底上的初级尖端，以加热介质的区域和次级尖端。次级尖端靠近温度传感器，例如电阻随温度变化的电导体。温度传感器感测来自次级尖端的热量，因此感测衬底的性质，如表面形貌和金属材料的存在或不存在。 NFT可以是位图形介质（BPM）热辅助记录（TAR）磁盘驱动器的一部分。温度传感器输出用于控制来自磁盘驱动器的写入头的写入脉冲，因此磁性写入磁场与磁性数据岛的位置同步。

3. 发明申请

US20120051196A1 NEAR-FIELD TRANSDUCER WITH THERMAL SENSOR AND SYSTEM FOR CLOCKING WRITE DATA IN A PATTERNED-MEDIA MAGNETIC RECORDING DISK DRIVE 有权
标题翻译：具有热传感器的近场传感器和用于在写入介质磁记录盘驱动器中锁定写入数据的系统
公开(公告)号：US20120051196A1
公开(公告)日：2012-03-01
申请号：US12862633
申请日：2010-08-24
申请人： Michael Konrad Grobis , Barry Cushing Stipe
发明人： Michael Konrad Grobis , Barry Cushing Stipe
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y10/00 , G11B5/6088 , G11B5/743 , G11B5/746 , G11B2005/001 , G11B2005/0021
摘要： A near-field transducer (NFT) has a primary tip that concentrates the oscillating charge of the NFT onto a substrate, such as magnetic recording medium, to heat regions of the medium, and a secondary tip. The secondary tip is located close to a temperature sensor, such as an electrical conductor whose resistance varies with temperature. The temperature sensor senses heat from the secondary tip and thus properties of the substrate like surface topography and the presence or absence of metallic material. The NFT can be part of a bit-patterned media (BPM) thermally-assisted recording (TAR) disk drive. The temperature sensor output is used to control the write pulses from the disk drive's write head so the magnetic write field is synchronized with the location of the magnetic data islands.
摘要翻译：近场换能器（NFT）具有将NFT的振荡电荷集中到诸如磁记录介质的基底上的初级尖端，以加热介质的区域和次级尖端。次级尖端靠近温度传感器，例如电阻随温度变化的电导体。温度传感器感测来自次级尖端的热量，因此感测衬底的性质，如表面形貌和金属材料的存在或不存在。 NFT可以是位图形介质（BPM）热辅助记录（TAR）磁盘驱动器的一部分。温度传感器输出用于控制来自磁盘驱动器的写入头的写入脉冲，因此磁性写入磁场与磁性数据岛的位置同步。

4. 发明授权

US08355300B2 Thermally-assisted recording (TAR) patterned-media disk drive with optical detection of write synchronization and servo fields 有权
标题翻译：热辅助记录（TAR）图案媒体磁盘驱动器，具有写入同步和伺服字段的光学检测
公开(公告)号：US08355300B2
公开(公告)日：2013-01-15
申请号：US12898381
申请日：2010-10-05
申请人： Michael Konrad Grobis , Manfred Ernst Schabes , Barry Cushing Stipe
发明人： Michael Konrad Grobis , Manfred Ernst Schabes , Barry Cushing Stipe
IPC分类号： G11B11/00
CPC分类号： G11B5/59677 , G11B5/012 , G11B5/59616 , G11B5/746 , G11B2005/0021
摘要： A thermally-assisted recording (TAR) bit-patterned-media (BPM) magnetic recording disk drive uses optical detection of synchronization fields for write synchronization and optical detection of servo sectors for read/write head positioning. The synchronization fields and servo sectors extend generally radially across the data tracks and are patterned into discrete nondata blocks separated by gaps in the along-the-track direction. A near-field transducer (NFT) directs laser radiation to the disk and generates a power absorption profile on the disk that has a characteristic along-the-track spot size less than the along-the-track length of the gaps between the nondata blocks in the synchronization fields and servo sectors. A sensor provides an output signal in response to radiation from the nondata blocks and gaps in the synchronization fields and servo sectors as the disk rotates to control the timing of the magnetic write field applied to the data islands and to control the positioning of the read/write head on the data tracks.
摘要翻译：热辅助记录（TAR）位图案介质（BPM）磁记录磁盘驱动器使用同步磁场的光学检测来进行读/写头定位的伺服扇区的写入同步和光学检测。同步场和伺服扇区通常径向延伸穿过数据轨道，并且被图案化成沿轨道方向上的间隙分开的离散非平面块。近场传感器（NFT）将激光辐射引导到盘上并在盘上产生功率吸收曲线，其具有小于轨道光斑尺寸的特征，该尺寸小于非数据块之间的间隙的沿着轨道长度在同步领域和伺服领域。传感器响应于来自非数据块的辐射和同步场和伺服扇区中的间隙而提供输出信号，因为盘旋转以控制施加到数据岛的磁写入场的定时，并且控制读/ 在数据轨上写头。

5. 发明申请

US20120082015A1 THERMALLY-ASSISTED RECORDING (TAR) PATTERNED-MEDIA DISK DRIVE WITH OPTICAL DETECTION OF WRITE SYNCHRONIZATION AND SERVO FIELDS 有权
标题翻译：热辅助记录（TAR）图形媒体磁盘驱动器，具有写入同步和伺服字段的光学检测
公开(公告)号：US20120082015A1
公开(公告)日：2012-04-05
申请号：US12898381
申请日：2010-10-05
申请人： Michael Konrad Grobis , Manfred Ernst Schabes , Barry Cushing Stipe
发明人： Michael Konrad Grobis , Manfred Ernst Schabes , Barry Cushing Stipe
IPC分类号： G11B11/00
CPC分类号： G11B5/59677 , G11B5/012 , G11B5/59616 , G11B5/746 , G11B2005/0021
摘要： A thermally-assisted recording (TAR) bit-patterned-media (BPM) magnetic recording disk drive uses optical detection of synchronization fields for write synchronization and optical detection of servo sectors for read/write head positioning. The synchronization fields and servo sectors extend generally radially across the data tracks and are patterned into discrete nondata blocks separated by gaps in the along-the-track direction. A near-field transducer (NFT) directs laser radiation to the disk and generates a power absorption profile on the disk that has a characteristic along-the-track spot size less than the along-the-track length of the gaps between the nondata blocks in the synchronization fields and servo sectors. A sensor provides an output signal in response to radiation from the nondata blocks and gaps in the synchronization fields and servo sectors as the disk rotates to control the timing of the magnetic write field applied to the data islands and to control the positioning of the read/write head on the data tracks.
摘要翻译：热辅助记录（TAR）位图案介质（BPM）磁记录磁盘驱动器使用同步磁场的光学检测来进行读/写头定位的伺服扇区的写入同步和光学检测。同步场和伺服扇区通常径向延伸穿过数据轨道，并且被图案化成沿轨道方向上的间隙分开的离散非平面块。近场传感器（NFT）将激光辐射引导到盘上并在盘上产生功率吸收曲线，其具有小于轨道光斑尺寸的特征，该尺寸小于非数据块之间的间隙的沿着轨道长度在同步领域和伺服领域。传感器响应于来自非数据块的辐射和同步场和伺服扇区中的间隙而提供输出信号，因为盘旋转以控制施加到数据岛的磁写入场的定时，并且控制读/ 在数据轨上写头。

6. 发明授权

US09147423B2 Method for improving a patterned perpendicular magnetic recording disk with annealing 有权
标题翻译：用于退火的图案化垂直磁记录盘的改进方法
公开(公告)号：US09147423B2
公开(公告)日：2015-09-29
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： B44C1/22 , H01L21/00 , G11B5/82 , G11B5/855 , C22C19/07 , C22C1/02
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。

7. 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。

8. 发明授权

US08625229B2 Servo control in a patterned-media magnetic recording disk drive using a reference table 有权
标题翻译：使用参考表在图形媒体磁记录磁盘驱动器中进行伺服控制
公开(公告)号：US08625229B2
公开(公告)日：2014-01-07
申请号：US13492880
申请日：2012-06-10
申请人： Thomas R. Albrecht , Michael Konrad Grobis
发明人： Thomas R. Albrecht , Michael Konrad Grobis
IPC分类号： G11B21/02 , G11B5/09 , G11B5/596
CPC分类号： G11B5/5965 , G11B5/59666
摘要： A patterned-media magnetic recording disk drive has head positioning servo sectors on the disk that do not contain special patterns but merely use the same type of dots that are used for data. The “data” dots in angularly spaced sectors of the data tracks function as the servo sectors and are denoted as D-servo regions. The D-servo regions extend across an annular band of the disk, which may be a bootstrap band for self-servowriting. The dots in the annular band are randomly magnetized so that each track in each D-servo region provides a generally random readback signal at the data frequency. The precise radial and circumferential position of the read/write head within a D-servo region is determined by comparing the readback signal with a set of reference signal waveforms from a look-up reference table and finding the reference signal waveform that matches the readback signal.
摘要翻译：图形介质磁记录磁盘驱动器在磁盘上具有不包含特殊图案的头部定位伺服扇区，但仅使用与数据相同类型的点。数据轨道的角度间隔扇区中的“数据”点用作伺服扇区，并被表示为D伺服区域。 D伺服区域延伸穿过盘的环形带，其可以是用于自伺服驱动的自举带。环形带中的点被随机磁化，使得每个D伺服区域中的每个轨道在数据频率处提供大致随机的回读信号。通过将读回信号与来自查找参考表的一组参考信号波形进行比较并找到与回读信号相匹配的参考信号波形来确定读/写头在D伺服区域内的精确径向和圆周位置。

9. 发明授权

US08048546B2 Perpendicular magnetic recording disk with ordered nucleation layer and method for making the disk 有权
标题翻译：具有有序成核层的垂直磁记录盘及其制造方法
公开(公告)号：US08048546B2
公开(公告)日：2011-11-01
申请号：US12639975
申请日：2009-12-16
申请人： Thomas R Albrecht , Michael Konrad Grobis , Ernesto E. Marinero , Hal J. Rosen , Ricardo Ruiz
发明人： Thomas R Albrecht , Michael Konrad Grobis , Ernesto E. Marinero , Hal J. Rosen , Ricardo Ruiz
IPC分类号： G11B5/66
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/65 , G11B5/7325 , G11B5/743 , G11B5/82
摘要： A continuous-media perpendicular magnetic recording disk with an oxide-containing granular Co alloy recording layer (RL) having minimal grain size dispersion has an ordered nucleation layer (ONL) formed below RL. The ONL has ordered nucleation sites arranged in a generally repetitive pattern. The nucleation sites are generally surrounded by non-nucleation regions of a different material than the nucleation sites. The Co-alloy grains of the subsequently deposited RL grow on the nucleation sites and the oxide of the RL become generally segregated on the non-nucleation regions. The ordered nucleation sites may be formed of a Ru-containing material and the non-nucleation regions may be formed of an oxide. The ONL is formed by nanoimprint lithography, preferably by a master mold fabricated with a method using self-assembling block copolymers for creating periodic nanometer scale features.
摘要翻译：具有最小晶粒尺寸分散体的具有含氧化物的颗粒状钴合金记录层（RL）的连续介质垂直磁记录盘具有形成在RL以下的有序成核层（ONL）。 ONL已经订购了以一般重复模式排列的成核位点。成核位点通常被与成核位点不同的材料的非成核区包围。随后沉积的RL的Co合金晶粒生长在成核位点，并且RL的氧化物通常在非成核区域上分离。有序的成核位点可以由含Ru的材料形成，并且非成核区域可以由氧化物形成。 ONL由纳米压印光刻形成，优选通过使用自组装嵌段共聚物制备周期性纳米尺度特征的方法制造的母模。

10. 发明授权

US08755142B2 Magnetic recording disk drive with method for data preservation during high track misregistration (TMR) environment 有权
标题翻译：磁记录磁盘驱动器，用于高跟踪配准（TMR）环境下的数据保存方法
公开(公告)号：US08755142B2
公开(公告)日：2014-06-17
申请号：US13528794
申请日：2012-06-20
申请人： Michael Konrad Grobis , Manfred Ernst Schabes
发明人： Michael Konrad Grobis , Manfred Ernst Schabes
IPC分类号： G11B5/54
CPC分类号： G11B19/045 , G11B5/596
摘要： A hard disk drive (HDD) has a high track misregistration (TMR) mode of writing data. If the position error signal (PES) from the servo positioning information exceeds a first write inhibit threshold (WI-1), writing is not inhibited but a high TMR mode of operation is enabled. In high TMR mode, prior to writing data to the target track, the data on the adjacent tracks is read and stored in a buffer. The data to be written to the target track is also stored in the buffer, and is flagged to indicate that the data needs to be written. The data is then written to the target track. However, if during writing the PES exceeds a second threshold (WI-2), then the data from the adjacent encroached track in the buffer is flagged for writing and the process repeated with the encroached track set as the target track.
摘要翻译：硬盘驱动器（HDD）具有写入数据的高轨迹重合失调（TMR）模式。如果来自伺服定位信息的位置误差信号（PES）超过第一写入禁止阈值（WI-1），则不禁止写入，而是能够进行高TMR操作模式。在高TMR模式中，在将数据写入目标轨迹之前，相邻轨道上的数据被读取并存储在缓冲器中。要写入目标轨道的数据也存储在缓冲区中，并被标记以指示数据需要写入。然后将数据写入目标轨道。然而，如果在写入期间PES超过第二阈值（WI-2），则来自缓冲器中的相邻被侵入轨道的数据被标记为写入，并且以侵入的轨道设置为目标轨道重复该过程。

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