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51. 发明授权

US08094418B2 Vertically stacked DFH heater design for protrusion shape control 有权
标题翻译：垂直堆叠DFH加热器设计用于突起形状控制
公开(公告)号：US08094418B2
公开(公告)日：2012-01-10
申请号：US12080276
申请日：2008-04-02
申请人： Erhard Schreck , Kowang Liu
发明人： Erhard Schreck , Kowang Liu
IPC分类号： G11B5/39 , G11B5/56
CPC分类号： G11B5/1278 , B82Y10/00 , B82Y25/00 , G11B5/3116 , G11B5/3136 , G11B5/3909 , G11B5/3912 , G11B5/3967 , G11B5/6064
摘要： A vertically stacked DFH design in a read/write head is disclosed that allows independent control of write gap protrusion and read gap protrusion. A first heater is formed in an insulation layer proximate to a sensor in a read head. A second heater is formed in a second insulation layer proximate to the write pole tip in a main pole layer. The two heaters are connected in series or in parallel through leads to a power source that activates the heaters. In one embodiment, the heaters have a fixed resistance ratio. Preferably, there are two drivers in the power source so that a first power can be applied to the first heater and a second power can be applied to the second heater to enable an adjustment of reader protrusion/writer protrusion or gamma ratio. Fast reader and writer actuation is achieved and low power consumption is realized.
摘要翻译：公开了一种读/写头中的垂直堆叠DFH设计，其允许对间隙突出和读取间隙突出的独立控制。第一加热器形成在接近读取头中的传感器的绝缘层中。第二加热器形成在主极层中靠近写磁极尖端的第二绝缘层中。两个加热器通过引线串联或并联连接到激活加热器的电源。在一个实施例中，加热器具有固定的电阻比。优选地，在电源中有两个驱动器，使得可以将第一功率施加到第一加热器，并且可以将第二功率施加到第二加热器以使得能够调整读取器突出/写入器突出或伽马比率。实现了快速的读写器驱动，实现了低功耗。

52. 发明授权

US08059496B1 Magnetic core plasmon antenna with recessed plasmon layer 有权
标题翻译：具有凹陷等离子体层的磁芯等离子体天线
公开(公告)号：US08059496B1
公开(公告)日：2011-11-15
申请号：US12804232
申请日：2010-07-16
申请人： Yuchen Zhou , Xuhui Jin , Kenichi Takano , Moris Dovek , Tobias Maletzky , Erhard Schreck , Joe Smyth
发明人： Yuchen Zhou , Xuhui Jin , Kenichi Takano , Moris Dovek , Tobias Maletzky , Erhard Schreck , Joe Smyth
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/1278 , G11B5/3116 , G11B5/6088 , G11B2005/0021
摘要： Various embodiments of a TAMR head having a magnetic core antenna (MCA) with a recessed plasmon layer are disclosed. An end of the plasmon layer is separated from the ABS by a magnetic layer that transmits the plasmon mode from the plasmon layer and transmits magnetic flux from an adjacent main pole layer. Both of the MCA and magnetic layer may have a triangular shape from an ABS view. There may be a non-magnetic separation layer between the MCA magnetic core and the main pole. Furthermore, a magnetic shield may be included with a side at the ABS, a side facing an end of a waveguide that transmits electromagnetic radiation to the MCA, and a side facing an edge of the plasmon layer. The recessed plasmon layer allows an improved overlay of the thermal heating spot on the magnetic field gradient at the magnetic medium that provides better TAMR performance.
摘要翻译：公开了具有带凹陷等离子体层的磁芯天线（MCA）的TAMR磁头的各种实施例。等离子体激元层的一端通过从等离子体激元层传输等离子体模式的磁层与ABS分离，并从相邻的主极层传输磁通量。从ABS观点来看，MCA和磁性层都可以具有三角形形状。在MCA磁芯和主极之间可能存在非磁性分离层。此外，在ABS的一侧可以包括磁屏蔽，面向朝向MCA的电磁辐射的波导的端部的一侧以及面向等离子体层的边缘的一侧。凹入的等离子体膜层允许在磁介质上的磁场梯度上的热加热点的改进的叠加，从而提供更好的TAMR性能。

53. 发明授权

US08023218B2 Electric field assisted magnetic recording 有权
标题翻译：电场辅助磁记录
公开(公告)号：US08023218B2
公开(公告)日：2011-09-20
申请号：US12313796
申请日：2008-11-25
申请人： Yuchen Zhou , Kowang Liu , Kunliang Zhang , Erhard Schreck
发明人： Yuchen Zhou , Kowang Liu , Kunliang Zhang , Erhard Schreck
IPC分类号： G11B5/02
CPC分类号： G11B5/1278 , G11B2005/001
摘要： We describe a system for electric field assisted magnetic recording where a recordable magnetic medium includes a magnetic recording layer of high coercivity and vertical magnetic anisotropy that is adjacent to an electrostrictive layer which can be placed in a state of stress by a electric field or which is already pre-stressed and which pre-stress can be turned into strain by an electric field. When the magnetic medium is acted on simultaneously by a magnetic writing field and an electric field, the stress in the electrostrictive layer is transferred to a magnetostrictive layer which is the magnetic recording layer by itself or is coupled to the magnetic recording layer, whereupon the magnetic recording layer is made more isotropic and more easily written upon. Residual stresses in the electrostrictive layer can then be removed by an additional electric field of opposite sign to the stress-producing field.
摘要翻译：我们描述了一种用于电场辅助磁记录的系统，其中可记录磁介质包括与矫顽力层相邻的具有高矫顽力和垂直磁各向异性的磁记录层，该电致伸缩层可通过电场置于应力状态，已经预应力，哪些预应力可以通过电场变成应变。当磁介质由磁场和电场同时作用时，电致伸缩层中的应力自身转移到作为磁记录层的磁致伸缩层，或耦合到磁记录层，由此磁性记录层变得更加各向同性，更容易写入。电致伸缩层中的残余应力然后可以通过与应力产生场相反的附加电场来去除。

54. 发明申请

US20100321820A1 Nano-lithography with rotating target and servo-positioned tip 有权
标题翻译：具有旋转目标和伺服定位尖端的纳米光刻
公开(公告)号：US20100321820A1
公开(公告)日：2010-12-23
申请号：US12080278
申请日：2008-04-02
申请人： Yuchen Zhou , Erhard Schreck , David Hu
发明人： Yuchen Zhou , Erhard Schreck , David Hu
IPC分类号： G11B5/52
CPC分类号： G11B5/59633 , B82Y10/00 , G11B5/314 , G11B5/59638 , G11B5/743 , G11B5/82 , G11B5/855 , G11B9/1409
摘要： The preferred embodiments of the present invention are devices and processes for producing high resolution lithography or pattern formation on the nanometer scale, using a voltage-biased probe that is slider-mounted along with, or separate from but linked to, a magnetic read head within a HDD mechanism. The probe is guided and positioned over a target layer by the motion of the read head which is, itself, guided by signals from servo tracks on a magnetic layer that activate an electromechanical servomechanism within the HDD. An electric field produced by the probe is capable of modifying the surface of the target layer over which the probe flies either directly, or by current induced or thermally induced effects. Targets such as amorphous or crystalline silicon can be hydrogen passivated and the electric field will produce oxidized or anodized lines with nanometer resolution.
摘要翻译：本发明的优选实施例是使用电压偏置探针来生产高分辨率光刻或图形形成的装置和工艺，所述电压偏置探针与所述磁读取头一起滑动安装，或与之相连， HDD机制。探头通过读取头的运动被引导和定位在目标层上，该读取头本身由在激活HDD内的机电伺服机构的磁性层上的来自伺服磁道的信号引导。由探针产生的电场能够直接改变探针在其上飞行的目标层的表面，或者通过电流感应或热诱导效应。诸如非晶体或晶体硅的靶可以被氢钝化，并且电场将产生具有纳米分辨率的氧化或阳极化线。

55. 发明申请

US20090251828A1 Vertically stacked DFH heater design for protrusion shape control 有权
标题翻译：垂直堆叠DFH加热器设计用于突起形状控制
公开(公告)号：US20090251828A1
公开(公告)日：2009-10-08
申请号：US12080276
申请日：2008-04-02
申请人： Erhard Schreck , Kowang Liu
发明人： Erhard Schreck , Kowang Liu
IPC分类号： G11B5/33
CPC分类号： G11B5/1278 , B82Y10/00 , B82Y25/00 , G11B5/3116 , G11B5/3136 , G11B5/3909 , G11B5/3912 , G11B5/3967 , G11B5/6064
摘要： A vertically stacked DFH design in a read/write head is disclosed that allows independent control of write gap protrusion and read gap protrusion. A first heater is formed in an insulation layer proximate to a sensor in a read head. A second heater is formed in a second insulation layer proximate to the write pole tip in a main pole layer. The two heaters are connected in series or in parallel through leads to a power source that activates the heaters. In one embodiment, the heaters have a fixed resistance ratio. Preferably, there are two drivers in the power source so that a first power can be applied to the first heater and a second power can be applied to the second heater to enable an adjustment of reader protrusion/writer protrusion or gamma ratio. Fast reader and writer actuation is achieved and low power consumption is realized.
摘要翻译：公开了一种读/写头中的垂直堆叠DFH设计，其允许对间隙突出和读取间隙突出的独立控制。第一加热器形成在接近读取头中的传感器的绝缘层中。第二加热器形成在主极层中靠近写磁极尖端的第二绝缘层中。两个加热器通过引线串联或并联连接到激活加热器的电源。在一个实施例中，加热器具有固定的电阻比。优选地，在电源中有两个驱动器，使得可以将第一功率施加到第一加热器，并且可以向第二加热器施加第二功率以使得能够调整读取器突出/写入器突出或伽马比率。实现了快速的读写器驱动，实现了低功耗。

56. 发明申请

US20090059410A1 Frictional heat assisted recording 有权
公开(公告)号：US20090059410A1
公开(公告)日：2009-03-05
申请号：US11899003
申请日：2007-08-30
申请人： Bernhard Knigge , Jia-Yang Juang , Erhard Schreck
发明人： Bernhard Knigge , Jia-Yang Juang , Erhard Schreck
IPC分类号： G11B5/02
CPC分类号： G11B5/3136 , G11B5/607 , G11B2005/001 , G11B2005/0021
摘要： In a method for writing data to a disk drive, a selected portion of a surface of a rotating disk of the disk drive is contacted with a designated contact region of a slider. An aspect of the contact is controlled to regulate frictional heating of the selected portion such that a magnetic field required to write data to the selected portion is reduced to a level which permits writing of data in the selected portion. Data is written on a frictionally heated track in the selected portion.

57. 发明授权

US07443634B2 Asymmetrical storage disk for a disk drive 有权
标题翻译：用于磁盘驱动器的不对称存储磁盘
公开(公告)号：US07443634B2
公开(公告)日：2008-10-28
申请号：US11799653
申请日：2007-05-02
申请人： Erhard Schreck , Yanning Liu
发明人： Erhard Schreck , Yanning Liu
IPC分类号： G11B5/82 , G11B25/04
CPC分类号： G11B5/7315 , G11B5/7325 , G11B5/82 , G11B5/8404
摘要： A storage disk for a hard disk drive includes a homogeneously-formed body region, a first side region and a second side region. The body region includes a first body side and a second body side opposite the first body side. The first side region is secured to the first body side and the second side region is secured to the second body side. In one embodiment, the first side region is adapted to store data and the second side region is not adapted to store data. The first side region includes a plurality of layers formed from different materials relative to one another. The first side region has a first density that is different than a second density of the second side region. In one embodiment, the first side region has a mass that is different than a mass of the second side region. In an alternative embodiment, the first side region has a thickness that is different than a thickness of the second side region.
摘要翻译：用于硬盘驱动器的存储盘包括均匀形成的体区，第一侧区和第二侧区。身体区域包括与第一身体侧相对的第一主体侧和第二主体侧。第一侧区域被固定到第一主体侧，并且第二侧部区域被固定到第二主体侧。在一个实施例中，第一侧区适于存储数据，而第二侧区不适于存储数据。第一侧区域包括由不同材料相对于彼此形成的多个层。第一侧区域具有与第二侧区域的第二密度不同的第一密度。在一个实施例中，第一侧区具有与第二侧区的质量不同的质量。在替代实施例中，第一侧区具有不同于第二侧区的厚度的厚度。

58. 发明申请

US20070253110A1 Asymmetrical storage disk for a disk drive 有权
标题翻译：用于磁盘驱动器的不对称存储磁盘
公开(公告)号：US20070253110A1
公开(公告)日：2007-11-01
申请号：US11799653
申请日：2007-05-02
申请人： Erhard Schreck , Yanning Liu
发明人： Erhard Schreck , Yanning Liu
IPC分类号： G11B5/82 , G11B5/84
CPC分类号： G11B5/7315 , G11B5/7325 , G11B5/82 , G11B5/8404
摘要： A storage disk for a hard disk drive includes a homogeneously-formed body region, a first side region and a second side region. The body region includes a first body side and a second body side opposite the first body side. The first side region is secured to the first body side and the second side region is secured to the second body side. In one embodiment, the first side region is adapted to store data and the second side region is not adapted to store data. The first side region includes a plurality of layers formed from different materials relative to one another. The first side region has a first density that is different than a second density of the second side region. In one embodiment, the first side region has a mass that is different than a mass of the second side region. In an alternative embodiment, the first side region has a thickness that is different than a thickness of the second side region.
摘要翻译：用于硬盘驱动器的存储盘包括均匀形成的体区，第一侧区和第二侧区。身体区域包括与第一身体侧相对的第一主体侧和第二主体侧。第一侧区域被固定到第一主体侧，并且第二侧部区域被固定到第二主体侧。在一个实施例中，第一侧区适于存储数据，而第二侧区不适于存储数据。第一侧区域包括由不同材料相对于彼此形成的多个层。第一侧区域具有与第二侧区域的第二密度不同的第一密度。在一个实施例中，第一侧区具有与第二侧区的质量不同的质量。在替代实施例中，第一侧区具有不同于第二侧区的厚度的厚度。

59. 发明授权

US07245452B1 Disk drive with altitude detection via analysis of non-repeatable runout components 有权
标题翻译：磁盘驱动器通过分析不可重复的跳动组件进行高度检测
公开(公告)号：US07245452B1
公开(公告)日：2007-07-17
申请号：US11256299
申请日：2005-10-21
申请人： Timothy A. Riener , Erhard Schreck
发明人： Timothy A. Riener , Erhard Schreck
IPC分类号： G11B21/02 , G11B5/58 , G11B5/596
CPC分类号： G11B5/59627
摘要： A controller for a disk drive measures track misregistration, extracts non-repeatable runout from measured track misregistration, determines one or more components of non-repeatable runout at various radial locations of a disk, and compares the determined components to known values at different altitudes to determine an operating altitude of a disk drive.
摘要翻译：用于磁盘驱动器的控制器测量磁道重合失调，从测量磁道重合失准中提取不可重复的跳动，确定磁盘各个径向位置处的不可重复跳动的一个或多个组件，并将确定的组件与不同高度处的已知值进行比较确定磁盘驱动器的工作高度。

60. 发明授权

US07095201B1 Method and apparatus for providing a user selectable start-up current in a disk drive 有权
标题翻译：用于在盘驱动器中提供用户可选择的启动电流的方法和装置
公开(公告)号：US07095201B1
公开(公告)日：2006-08-22
申请号：US09973791
申请日：2001-10-09
申请人： Erhard Schreck , Mark Heimbaugh
发明人： Erhard Schreck , Mark Heimbaugh
IPC分类号： G05B11/01
CPC分类号： G11B5/5521 , G11B19/02
摘要： A method and apparatus for providing a user selectable start-up current in a disk drive are provided. A user may select a relatively high start-up current to provide a relatively fast start-up time in a disk drive. Alternatively, the user may select a relatively low maximum current draw by the hard drive to enable a relatively low power, low cost power supply to be used in connection with the hard drive, for use with applications in which a relatively long start-up time is acceptable. In connection with applications in which a low cost power supply is to be used, the maximum current drawn by the disk drive may be limited to the amount of current required by the disk drive during seek operations.
摘要翻译：提供了一种用于在盘驱动器中提供用户可选择的启动电流的方法和装置。用户可以选择相对较高的启动电流以在磁盘驱动器中提供相对快速的启动时间。或者，用户可以通过硬盘驱动器选择相对较低的最大电流消耗，以使得能够与硬盘驱动器结合使用相对低功率，低成本的电源，以便与其中相对长的启动时间是可以接受的关于要使用低成本电源的应用，磁盘驱动器吸取的最大电流可能被限制在磁盘驱动器在寻找操作期间所需的电流量。

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