公开(公告)号：US07758981B2

公开(公告)日：2010-07-20

申请号：US11782664

申请日：2007-07-25

申请人： Thomas R. Albrecht

发明人： Thomas R. Albrecht

IPC分类号： G11B5/66

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/82

摘要： A method for making a master disk to be used for nanoimprinting patterned-media magnetic recording disks uses sidewall lithography. In one implementation, the master disk substrate has a first pattern of concentric rings formed on it by sidewall lithography, followed by a second pattern of generally radially-directed pairs of parallel lines, also formed by sidewall lithography, with the pairs of parallel lines intersecting the rings. An etching process is then performed, using the upper pattern as an etch mask, to remove unprotected portions of the underlying concentric rings. This leaves a pattern of pillars on the substrate, which then serve as an etch mask for an etching process that etches unprotected portions of the master disk substrate. The resulting master disk then has pillars of substrate material arranged in a pattern of concentric rings and generally radially-directed pairs of parallel lines.

摘要翻译： 用于制造用于纳米压印图案化介质磁记录盘的母盘的方法使用侧壁光刻。 在一个实施方案中，母盘基板具有通过侧壁光刻在其上形成的同心环的第一图案，随后是也通过侧壁光刻形成的大致径向定向的一对平行线的第二图案，并且所述平行线对相交 戒指。 然后使用上部图案作为蚀刻掩模进行蚀刻工艺，以去除下面的同心环的未受保护的部分。 这在衬底上留下了柱状图案，其然后用作用于蚀刻母盘衬底的未受保护部分的蚀刻工艺的蚀刻掩模。 所得到的母盘然后具有以同心环和大体上径向指向的平行线对图案布置的基底材料柱。

公开(公告)号：US07675703B2

公开(公告)日：2010-03-09

申请号：US11759959

申请日：2007-06-08

申请人： Thomas R. Albrecht ,  David Timothy Flynn ,  Richard Leo Galbraith ,  Michael Anthony Moser ,  Bruce Alexander Wilson ,  Xiao Z. Wu

发明人： Thomas R. Albrecht ,  David Timothy Flynn ,  Richard Leo Galbraith ,  Michael Anthony Moser ,  Bruce Alexander Wilson ,  Xiao Z. Wu

IPC分类号： G11B5/09

CPC分类号： G11B5/09 ,  G11B5/746 ,  G11B20/10009 ,  G11B20/10222 ,  G11B20/1403 ,  G11B2020/1281 ,  G11B2220/2516

摘要： A system and method accurately clocks write data to the discrete data blocks in a patterned media disk drive. The precise time intervals between successive timing marks in the data tracks are measured by a timing mark detector that counts the integer number of write clock cycles between successive timing marks and the fractional part of a write clock cycle by detecting the phase difference between a timing mark and a reference signal. The resulting timing error is output to a write clock compensator. The write clock is capable of generating equally spaced primary phases and phases intermediate the primary phases. The compensator includes a phase rotator that controls which write clock phase is selected for output. The value in a phase register of the compensator is used to control the phase rotator to advance or retard the write clock phase, and thus to adjust its frequency and phase so as to be synchronized for writing to the data blocks.

摘要翻译： 系统和方法将写入数据精确地记录在图案化媒体盘驱动器中的离散数据块上。 通过定时标记检测器来测量数据轨道中连续定时标记之间的精确时间间隔，该定时标记检测器通过检测定时标记之间的相位差来计数连续定时标记与写入时钟周期的小数部分之间的写入时钟周期的整数， 和参考信号。 所产生的定时误差被输出到写时钟补偿器。 写时钟能够产生相等间隔的初级相和主相之间的相位。 补偿器包括一个相位旋转器，用于控制哪个写入时钟相位被选择用于输出。 补偿器的相位寄存器中的值用于控制相位旋转器提前或延迟写时钟相位，并因此调整其频率和相位，以便同步写入数据块。

公开(公告)号：US07675699B2

公开(公告)日：2010-03-09

申请号：US11852252

申请日：2007-09-07

申请人： Thomas R. Albrecht

发明人： Thomas R. Albrecht

IPC分类号： G11B5/09

CPC分类号： G11B5/59633 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3967 ,  G11B5/743 ,  G11B5/746 ,  G11B5/82 ,  G11B2005/0002

摘要： A patterned-media magnetic recording disk has data islands arranged into concentric data tracks and the data tracks arranged into radially-spaced annular zones, with each zone having an inside-diameter (ID) perimeter and an outside-diameter (OD) perimeter and at least one annular nondata region near one of its perimeters. Each zone includes generally radially-directed synchronization (sync) marks that extend from the zone ID perimeter to the zone OD perimeter so as to extend into the annular nondata region or regions of the zone. In the disk drive that uses the patterned-media disks the read head and write head have an effective radial offset relative to one another, so the write head may be on a data track near a zone perimeter when the read head is located in a nondata region. The read head detects the sync marks that extend into the nondata region so that the write head can be synchronized with the data islands in the data track.

摘要翻译： 图形介质磁记录盘具有排列成同心数据轨道的数据岛和布置成径向间隔的环形区域的数据轨道，每个区域具有内径（ID）周长和外径（OD）周长 在其周边的一个附近的至少一个环形非圆形区域。 每个区域包括从区域ID周边延伸到区域OD周边的大体上径向定向的同步（sync）标记，以便延伸到区域的环形非区域或区域中。 在使用图案化介质盘的磁盘驱动器中，读头和写头相对于彼此具有有效的径向偏移，因此当读头位于非数据位时，写头可以在区周边附近的数据轨道上 地区。 读取头检测延伸到非数据区域的同步标记，使得写入头可以与数据轨道中的数据岛同步。

公开(公告)号：US07652839B2

公开(公告)日：2010-01-26

申请号：US11740289

申请日：2007-04-26

申请人： Thomas R. Albrecht ,  Zvonimir Z. Bandic

发明人： Thomas R. Albrecht ,  Zvonimir Z. Bandic

IPC分类号： G11B21/02

CPC分类号： G11B5/865 ,  B82Y10/00 ,  G11B5/59655 ,  G11B5/59688 ,  G11B5/743 ,  G11B5/82

摘要： A magnetic recording disk in a disk drive has identical pre-patterned servo patterns on its front and back surfaces. The servo patterns on each disk surface are pre-patterned with a single master template, resulting in the identical pattern on each disk surface. The servo sectors on the two disk surfaces can form identical patterns of angularly spaced arcuate-shaped lines or straight lines that extend radially across the data tracks. However, because the lines on at least one of the disk surfaces do not replicate the path of the recording head, the sampling rate of the servo sectors on that surface is not constant but varies with radial position of the head. To accommodate this, the disk drive's servo control system calculates a timing adjustment from an estimate of the radial position of the head and uses this timing adjustment to adjust the time to open a time window to allow detection of the servo sectors.

摘要翻译： 磁盘驱动器中的磁记录盘在其前表面和后表面上具有相同的预图案化伺服图案。 每个磁盘表面上的伺服图案都用单个主模板预先图案化，从而在每个磁盘表面上形成相同的图案。 两个磁盘表面上的伺服扇区可以形成相同的角度间隔的弓形线或沿着数据轨道径向延伸的直线。 然而，由于至少一个盘表面上的线不复制记录头的路径，所以在该表面上的伺服扇区的采样率不是恒定的，而是随着磁头的径向位置而变化。 为了适应这一点，磁盘驱动器的伺服控制系统根据头部的径向位置的估计来计算定时调整，并且使用该定时调整来调整打开时间窗口的时间以允许检测伺服扇区。

公开(公告)号：US20090308837A1

公开(公告)日：2009-12-17

申请号：US12141062

申请日：2008-06-17

申请人： Thomas R. Albrecht ,  Ricardo Ruiz

发明人： Thomas R. Albrecht ,  Ricardo Ruiz

IPC分类号： B44C1/22

CPC分类号： G11B5/855

摘要： The invention is a method for making a master mold to be used for nanoimprinting patterned-media magnetic recording disks. The method uses conventional optical or e-beam lithography to form a pattern of generally radial stripes on a substrate, with the stripes being grouped into annular zones or bands. A block copolymer material is deposited on the pattern, resulting in guided self-assembly of the block copolymer into its components to multiply the generally radial stripes into generally radial lines of alternating block copolymer components. The radial lines of one of the components are removed and the radial lines of the remaining component are used as an etch mask to etch the substrate. Conventional lithography is used to form concentric rings over the generally radial lines. After etching and resist removal, the master mold has pillars arranged in circular rings, with the rings grouped into annular bands.

摘要翻译： 本发明是用于制造用于纳米压印图案化介质磁记录盘的母模的方法。 该方法使用常规光学或电子束光刻在基底上形成大致径向条纹的图案，其中条纹被分组成环形区域或条带。 嵌段共聚物材料沉积在图案上，导致嵌段共聚物引导自组装成其组分，以将大致径向的条带乘以交替的嵌段共聚物组分的大致径向线。 除去其中一个部件的径向线，并且将其余部件的径向线用作蚀刻掩模以蚀刻基板。 常规光刻用于在大致径向线上形成同心环。 在蚀刻和抗蚀剂去除之后，主模具有布置成圆形环的柱，其中环被分组成环形带。

公开(公告)号：US20090029191A1

公开(公告)日：2009-01-29

申请号：US11782664

申请日：2007-07-25

申请人： Thomas R. Albrecht

发明人： Thomas R. Albrecht

IPC分类号： G11B5/712 ,  B05D5/00 ,  B44C1/22

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/82

摘要： A method for making a master disk to be used for nanoimprinting patterned-media magnetic recording disks uses sidewall lithography. In one implementation, the master disk substrate has a first pattern of concentric rings formed on it by sidewall lithography, followed by a second pattern of generally radially-directed pairs of parallel lines, also formed by sidewall lithography, with the pairs of parallel lines intersecting the rings. An etching process is then performed, using the upper pattern as an etch mask, to remove unprotected portions of the underlying concentric rings. This leaves a pattern of pillars on the substrate, which then serve as an etch mask for an etching process that etches unprotected portions of the master disk substrate. The resulting master disk then has pillars of substrate material arranged in a pattern of concentric rings and generally radially-directed pairs of parallel lines.

摘要翻译： 用于制造用于纳米压印图案化介质磁记录盘的母盘的方法使用侧壁光刻。 在一个实施方案中，母盘基板具有通过侧壁光刻在其上形成的同心环的第一图案，随后是也通过侧壁光刻形成的大致径向定向的一对平行线的第二图案，并且所述平行线对相交 戒指。 然后使用上部图案作为蚀刻掩模进行蚀刻工艺，以去除下面的同心环的未受保护的部分。 这在衬底上留下了柱状图案，其然后用作用于蚀刻母盘衬底的未受保护部分的蚀刻工艺的蚀刻掩模。 所得到的母盘然后具有以同心环和大体上径向指向的平行线对图案布置的基底材料柱。

公开(公告)号：US20080304173A1

公开(公告)日：2008-12-11

申请号：US11759959

申请日：2007-06-08

申请人： Thomas R. Albrecht ,  David Timothy Flynn ,  Richard Leo Galbraith ,  Michael Anthony Moser ,  Bruce Alexander Wilson ,  Xiao Z. Wu

发明人： Thomas R. Albrecht ,  David Timothy Flynn ,  Richard Leo Galbraith ,  Michael Anthony Moser ,  Bruce Alexander Wilson ,  Xiao Z. Wu

IPC分类号： G11B5/09

CPC分类号： G11B5/09 ,  G11B5/746 ,  G11B20/10009 ,  G11B20/10222 ,  G11B20/1403 ,  G11B2020/1281 ,  G11B2220/2516

摘要： A system and method accurately clocks write data to the discrete data blocks in a patterned media disk drive. The precise time intervals between successive timing marks in the data tracks are measured by a timing mark detector that counts the integer number of write clock cycles between successive timing marks and the fractional part of a write clock cycle by detecting the phase difference between a timing mark and a reference signal. The resulting timing error is output to a write clock compensator. The write clock is capable of generating equally spaced primary phases and phases intermediate the primary phases. The compensator includes a phase rotator that controls which write clock phase is selected for output. The value in a phase register of the compensator is used to control the phase rotator to advance or retard the write clock phase, and thus to adjust its frequency and phase so as to be synchronized for writing to the data blocks.

摘要翻译： 系统和方法将写入数据精确地记录在图案化媒体盘驱动器中的离散数据块上。 通过定时标记检测器来测量数据轨道中连续定时标记之间的精确时间间隔，该定时标记检测器通过检测定时标记之间的相位差来计数连续定时标记与写入时钟周期的小数部分之间的写入时钟周期的整数， 和参考信号。 所产生的定时误差被输出到写时钟补偿器。 写时钟能够产生相等间隔的初级相和主相之间的相位。 补偿器包括一个相位旋转器，用于控制哪个写入时钟相位被选择用于输出。 补偿器的相位寄存器中的值用于控制相位旋转器提前或延迟写时钟相位，并因此调整其频率和相位，以便同步写入数据块。

公开(公告)号：US06914752B2

公开(公告)日：2005-07-05

申请号：US10400210

申请日：2003-03-26

申请人： Thomas R. Albrecht ,  Francis Chee-Shuen Lee ,  Charles Mathew Mate ,  Tzong-Shii Pan ,  Robert N. Payne

发明人： Thomas R. Albrecht ,  Francis Chee-Shuen Lee ,  Charles Mathew Mate ,  Tzong-Shii Pan ,  Robert N. Payne

IPC分类号： G11B17/32 ,  G11B5/48 ,  G11B5/58 ,  G11B21/21 ,  G11B5/60

CPC分类号： G11B5/58 ,  G11B5/4826 ,  G11B5/4833

摘要： A magnetic recording disk drive achieves continuous contact recording with a head-suspension assembly that compensates for the moment generated from an adhesive force between the head carrier or slider and the disk. The slider pivot point, which is the point where the load force is applied to the flexure that supports the slider, is located closer to the front end of the slider than the net force applied by the air-bearing surface of the slider when the disk is rotating at its operational speed. This assures that the net air-bearing force generates a moment about the pivot point to partially counteract the flexure moment and the moment generated from the adhesive force between the disk and the slider's contact pad.

摘要翻译： 磁记录盘驱动器通过头悬挂组件实现连续接触记录，该组合补偿从头托架或滑块与盘之间的粘合力产生的力矩。 滑块枢转点，其是负载力被施加到支撑滑块的挠曲件的点，位于比由滑块的空气轴承表面施加的净力更靠近滑块的前端的位置，当盘 正在以其运行速度旋转。 这确保净空气轴承力围绕枢转点产生力矩，以部分地抵消弯曲力矩和由盘和滑块的接触垫之间的粘合力产生的力矩。

公开(公告)号：USRE35514E

公开(公告)日：1997-05-20

申请号：US325997

申请日：1994-10-19

申请人： Thomas R. Albrecht ,  Moris-Musa Dovek ,  Michael D. Kirk ,  Sang-Il Park

发明人： Thomas R. Albrecht ,  Moris-Musa Dovek ,  Michael D. Kirk ,  Sang-Il Park

IPC分类号： G01Q20/02 ,  G01Q40/00 ,  G01Q70/02 ,  H01J37/20 ,  H01J40/14

CPC分类号： G01Q40/00 ,  B82Y35/00 ,  G01Q70/02 ,  Y10S977/868

摘要： A scanning force microscope having a sensor head and a base wherein a moveable sample holder is housed in the base and is positioned relative to a probe housed in the sensor head, such sample being monitored by an optical deflection detection system. The detection system is configured to provide direct visual observation of the probe with respect to the sample. The mirror of the detection system is mounted in a cut away portion of a sphere and defines the axis of rotation of a kinematic mount, such providing ease of fine adjustment of the detection system. The sensor head is in communication with the base by a stage kinematic mount, such providing ease of position adjustment of the sensor head with respect to the base.

摘要翻译： 一种扫描力显微镜，其具有传感器头和基座，其中可移动的样品保持器容纳在基座中并且相对于容纳在传感器头中的探针定位，该样品由光学偏转检测系统监测。 检测系统被配置为提供相对于样品的探针的直接目视观察。 检测系统的镜子安装在球体的切除部分中并且限定运动学座架的旋转轴线，从而提供了检测系统的微调。 传感器头通过平台运动学支架与基座连通，从而提供传感头相对于底座的位置调节的便利性。

公开(公告)号：US5399232A

公开(公告)日：1995-03-21

申请号：US179756

申请日：1994-01-07

申请人： Thomas R. Albrecht ,  Shinya Akamine ,  Thomas E. Carver ,  Mark J. Zdeblick

发明人： Thomas R. Albrecht ,  Shinya Akamine ,  Thomas E. Carver ,  Mark J. Zdeblick

IPC分类号： B81C1/00 ,  G01Q70/10 ,  G01Q70/14 ,  G01Q70/16 ,  H01L21/306 ,  H01L21/603

CPC分类号： G01Q60/38 ,  B82Y35/00 ,  G01Q70/10 ,  G01Q70/14 ,  G01Q70/16

摘要： A dielectric cantilever arm stylus with an integrally formed pyramidal tip is provided. The tip is molded in a pyramidal pit etched in a later-removed (100) silicon substrate. An integrally-formed cantilever arm is also formed as the tip is being formed. Various thin film materials form the cantilever arm and the tip. In one embodiment of the invention, the dielectric is silicon nitride. The cantilever arm is anodically bonded to a glass block.

摘要翻译： 提供具有整体形成的金字塔形尖端的介电悬臂臂触针。 尖端被模制在蚀刻在稍后去除的（100）硅衬底中的金字塔形坑中。 当尖端正在形成时，也形成一体形成的悬臂。 各种薄膜材料形成悬臂和尖端。 在本发明的一个实施例中，电介质是氮化硅。 悬臂被阳极结合到玻璃块上。