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1. 发明授权

US07509728B1 Method for adjusting head-to-disk spacing in a disk drive 有权
标题翻译：调整磁盘驱动器中磁盘间距的方法
公开(公告)号：US07509728B1
公开(公告)日：2009-03-31
申请号：US11101298
申请日：2005-04-07
申请人： Erhard Schreck , Francis P. Crimi , Duc Bahn , Thao Anh Nguyen , Kazuhiro Saito , Donald J. Brunnett , Andrew LeFebvre , Scott Hughes , Brian Strom , Michael Mallary , Hyunchul Shim , Bruce C. Schardt
发明人： Erhard Schreck , Francis P. Crimi , Duc Bahn , Thao Anh Nguyen , Kazuhiro Saito , Donald J. Brunnett , Andrew LeFebvre , Scott Hughes , Brian Strom , Michael Mallary , Hyunchul Shim , Bruce C. Schardt
IPC分类号： G11B21/02
CPC分类号： G11B27/36 , G11B5/3133 , G11B5/40 , G11B5/6064 , G11B19/048 , G11B2220/2516 , Y10T29/49025 , Y10T29/49036
摘要： A method for manufacturing a first disk drive includes incorporating a first storage disk having a first storage surface, and a first slider having a first read/write head and a slider mover into the first disk drive. Further, the first read/write head is movably positioned a first head-to-disk spacing relative to the first storage surface. The method also includes determining an incremental power level necessary to be delivered to a second slider mover of a second slider having a second read/write head to adjust a second head-to-disk spacing relative to a second storage surface by a predetermined increment. In addition, the method includes adjusting a first head-to-disk spacing by directing an operational power level to the first slider mover. The operational power level is derived from the incremental power level. The step of determining an incremental power level can include directing power to the second slider mover and detecting approximately when a portion of the second slider first contacts the second storage surface. Moreover, the step of adjusting can be performed during one or more manufacturing operations of the first disk drive.
摘要翻译：一种用于制造第一盘驱动器的方法，包括：将具有第一存储表面的第一存储盘和具有第一读/写头和滑块移动器的第一滑块结合到第一盘驱动器中。此外，第一读/写头相对于第一存储表面可移动地定位成第一头对盘间隔。该方法还包括确定必须传送到具有第二读/写头的第二滑块的第二滑块移动器所需的增量功率水平，以相对于第二存储表面调整第二头 - 盘间隔预定增量。此外，该方法包括通过将操作功率电平引导到第一滑块移动器来调整第一头对盘间隔。运行功率电平是从增量功率电平得出的。确定增量功率水平的步骤可以包括将功率引导到第二滑块移动器，并且大体上检测第二滑块的一部分是否首先接触第二存储表面。此外，可以在第一盘驱动器的一个或多个制造操作期间执行调整步骤。

2. 发明授权

US07362534B1 System for detecting a change in head-to-disk contact status in a disk drive 有权
标题翻译：用于检测磁盘驱动器中磁盘到磁盘接触状态变化的系统
公开(公告)号：US07362534B1
公开(公告)日：2008-04-22
申请号：US11101112
申请日：2005-04-07
申请人： Erhard Schreck , Francis P. Crimi , Jingbo Yu , Michael Mallary , Scott Hughes , Duc Bahn , Mark Heimbaugh , Kazuhiro Saito , Andrew LeFebvre , Joerg Ferber , Xiaoping Hu , Douglas J. Krajnovich , Chris Hawks , Donald J Brunnett , Bruce C Schardt
发明人： Erhard Schreck , Francis P. Crimi , Jingbo Yu , Michael Mallary , Scott Hughes , Duc Bahn , Mark Heimbaugh , Kazuhiro Saito , Andrew LeFebvre , Joerg Ferber , Xiaoping Hu , Douglas J. Krajnovich , Chris Hawks , Donald J Brunnett , Bruce C Schardt
IPC分类号： G11B21/02 , G11B5/596 , G11B5/58
CPC分类号： G11B5/5526 , G11B5/3136 , G11B5/54
摘要： A disk drive includes a rotatable storage disk, an actuator motor, a slider that magnetically interacts with the storage disk, and a drive circuitry. A portion of the slider moves between a first position wherein the slider does not contact the storage disk and a second position wherein the slider contacts the storage disk. The drive circuitry can detect when the position of the slider changes between these positions. In one embodiment, the drive circuitry monitors off-track movement of the slider to detect when the slider has moved between these positions. The drive circuitry can also current that is directed to the actuator motor that is used to compensate for off-track movement to detect when the slider moves between these positions. In yet another embodiment, the drive circuitry monitors a rotational velocity of the storage disk to detect approximately when the slider moves between these positions.
摘要翻译：磁盘驱动器包括可旋转存储盘，致动器马达，与存储盘磁性相互作用的滑块和驱动电路。滑块的一部分在滑块不接触存储盘的第一位置和滑块接触存储盘的第二位置之间移动。驱动电路可以检测滑块的位置何时在这些位置之间变化。在一个实施例中，驱动电路监视滑块的偏离轨迹运动，以检测滑块何时在这些位置之间移动。驱动电路还可以引导到致动器马达的电流，该电流用于补偿离轨运动以检测滑块何时在这些位置之间移动。在另一个实施例中，驱动电路监视存储盘的旋转速度，以便在滑块在这些位置之间移动时大致检测。

3. 发明授权

US07310194B1 System for monitoring and dynamically adjusting head-to-disk spacing in a disk drive 失效
标题翻译：用于监视和动态调整磁盘驱动器中磁盘间距的系统
公开(公告)号：US07310194B1
公开(公告)日：2007-12-18
申请号：US11101089
申请日：2005-04-07
申请人： Bruce C. Schardt , Erhard Schreck , Jingbo Yu , Michael Mallary , Scott Hughes , Duc Banh , Kazuhiro Saito , Donald J Brunnett , Tim Glassburn , Chris Hawks , Thao Anh Nguyen , Andrew LeFebvre , Joerg Ferber , Richard K. Oswald , Brian Strom
发明人： Bruce C. Schardt , Erhard Schreck , Jingbo Yu , Michael Mallary , Scott Hughes , Duc Banh , Kazuhiro Saito , Donald J Brunnett , Tim Glassburn , Chris Hawks , Thao Anh Nguyen , Andrew LeFebvre , Joerg Ferber , Richard K. Oswald , Brian Strom
IPC分类号： G11B21/02
CPC分类号： G11B5/6029 , G11B5/3133 , G11B5/455 , G11B5/5534 , G11B5/607
摘要： A disk drive includes a drive housing, a storage disk, a slider and a drive circuitry. The slider magnetically interacts with the storage disk, and includes a read/write head that is positioned to have an actual head-to-disk spacing greater than zero nanometers during rotation of the storage disk. The drive circuitry can determine and/or monitor the actual head-to-disk spacing at any time during the operation of the disk drive based on an amplitude or a change in the amplitude of a signal such as a variable gain amplifier signal. In one embodiment, the slider includes a slider mover that receives current via the drive circuitry and causes a deformation of a portion of the slider to change the head-to-disk spacing based on the amplitude of the signal. In another embodiment, the read/write head moves during substantially consistent rotational velocity of the storage disk from a first actual head-to-disk spacing equal to approximately zero nanometers, to a second actual head-to-disk spacing that is greater than zero nanometers based on a desired amplitude of the signal.
摘要翻译：磁盘驱动器包括驱动器壳体，存储盘，滑块和驱动电路。该滑块与存储盘磁性地相互作用，并且包括读/写头，其被定位成在存储盘旋转期间具有大于零纳米的实际头到盘间距。驱动电路可以基于诸如可变增益放大器信号的信号的振幅或振幅的变化来确定和/或监视磁盘驱动器的操作期间的任何时间的实际磁头到磁盘间距。在一个实施例中，滑块包括滑块移动器，其通过驱动电路接收电流，并且导致滑块的一部分的变形，以基于信号的幅度来改变头对盘间隔。在另一个实施例中，读/写头在存储盘的基本一致的旋转速度从等于大约零纳米的第一实际磁头到磁盘间隔移动到大于零的第二实际磁头到磁盘间隔基于信号的期望幅度的纳米。

4. 发明授权

US07375915B1 Disk drive that varies the power to a slider mover during transitions between drive operations 有权
标题翻译：磁盘驱动器可在驱动器操作过渡期间改变滑块移动器的电源
公开(公告)号：US07375915B1
公开(公告)日：2008-05-20
申请号：US11101088
申请日：2005-04-07
申请人： Erhard Schreck , Joerg Ferber , Michael Mallary , Anthony R. Hurtado , Chris Hawks , Scott Hughes
发明人： Erhard Schreck , Joerg Ferber , Michael Mallary , Anthony R. Hurtado , Chris Hawks , Scott Hughes
IPC分类号： G11B5/596
CPC分类号： G11B5/6064 , G11B5/3133 , G11B5/607
摘要： A disk drive for storing data includes a drive housing, a storage disk that is rotatably coupled to the drive housing, a slider assembly positioned near the storage disk, and a drive circuitry. The slider assembly includes a head that interacts with the storage disk during a data transfer operation and a slider mover. The drive circuitry directs a first power level to slider mover to maintain the head at a first HtD spacing, and a second power level to the slider mover to maintain the head at a second HtD spacing, and a variable, transition power to the slider mover during a transition between the first power level being directed to the slider mover and the second power level being directed to the slider mover. The transition power is tailored to rapidly move the head between the HtD spacings.
摘要翻译：用于存储数据的磁盘驱动器包括驱动器壳体，可旋转地联接到驱动器壳体的存储盘，位于存储盘附近的滑块组件和驱动电路。滑动器组件包括在数据传送操作期间与存储盘相互作用的头部和滑块移动器。驱动电路将第一功率电平引导到滑块移动器以将头部保持在第一HtD间隔，并且将滑块移动器的第二功率电平维持在第二HtD间隔的头部，以及向滑块移动器的可变过渡功率在所述第一功率水平被引导到所述滑块移动器和所述第二功率水平之间的转换期间被引导到所述滑块移动器。过渡功率被定制为在HtD间距之间快速移动头部。

5. 发明授权

US08649249B1 Printing magnetic pattern onto disk 有权
标题翻译：将磁性图案打印到磁盘上
公开(公告)号：US08649249B1
公开(公告)日：2014-02-11
申请号：US11220068
申请日：2005-08-31
申请人： Erhard Schreck , David Fowler , Michael Mallary
发明人： Erhard Schreck , David Fowler , Michael Mallary
IPC分类号： G11B9/00 , G11B7/00
CPC分类号： G11B5/59688 , G11B5/59655 , G11B5/743 , G11B5/855 , G11B5/865
摘要： A novel method and apparatus is provided for printing magnetic patterns using heat assisted magnetic recording (HAMR). The apparatus includes an array of probes that is arranged in a predetermined pattern, such as a servo pattern. The array of probes is brought into contact, or near-contact, with a magnetic recording medium that has been bulk erased substantially along an initialization direction. Each probe is energized so as to heat its respective contacted (or near-contacted) region of the recording medium above a threshold temperature. An external magnetic field is applied to the heated regions in a direction that is substantially opposite from the initialization direction. The strength of the external magnetic field is chosen to be greater than the coercivity of the recording medium at the threshold temperature, but less than the coercivity of the recording medium at room temperature. As a result, only magnetizations in the heated regions become aligned with the external field.
摘要翻译：提供了一种使用热辅助磁记录（HAMR）打印磁图案的新颖方法和装置。该装置包括以预定图案布置的诸如伺服图案的探针阵列。探针的阵列与已经大体沿着初始化方向被大量擦除的磁记录介质接触或接近接触。每个探针被通电，以将其各自接触的（或近接触）的区域加热到高于阈值温度。外部磁场沿与初始化方向大致相反的方向施加到加热区域。选择外部磁场的强度大于在阈值温度下记录介质的矫顽力，但小于记录介质在室温下的矫顽力。结果，只有加热区域中的磁化才能与外界对准。

6. 发明授权

US08365393B1 Manufacturing methods for write heads with floating side shields 有权
标题翻译：具有浮动侧屏蔽的写头的制造方法
公开(公告)号：US08365393B1
公开(公告)日：2013-02-05
申请号：US12510349
申请日：2009-07-28
申请人： Mourad Benakli , Michael Mallary
发明人： Mourad Benakli , Michael Mallary
IPC分类号： G11B5/187 , C23C14/22
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/3116 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： Methods for manufacturing a magnetic head for a disk drive. The methods include the steps of depositing a first non-magnetic spacer layer, depositing a plating seed layer on the first non-magnetic spacer layer and plating at least one side shield and a pole tip layer on the plating seed layer, each of the at least one side shield and the pole tip layer separated by a trench. Then the method includes depositing a first non-magnetic material in the trench using ion-beam assisted deposition and planarizing using a chemical-mechanical polishing step.
摘要翻译：制造磁盘驱动器的磁头的方法。所述方法包括以下步骤：沉积第一非磁性间隔层，在第一非磁性间隔层上沉积电镀种子层，并在电镀种子层上镀覆至少一个侧屏蔽和极尖层，至少一个侧面屏蔽和由沟槽隔开的极尖层。然后，该方法包括使用离子束辅助沉积和使用化学机械抛光步骤平坦化在沟槽中沉积第一非磁性材料。

7. 发明授权

US08243389B2 Write fringing reduction for recording media 失效
标题翻译：为记录媒体写出边缘缩小
公开(公告)号：US08243389B2
公开(公告)日：2012-08-14
申请号：US12967927
申请日：2010-12-14
申请人： Mourad Benakli , Michael Mallary
发明人： Mourad Benakli , Michael Mallary
IPC分类号： G11B5/667 , G11B5/82
CPC分类号： G11B5/667 , G11B5/82 , G11B5/855
摘要： A recording media design having discrete track recording structure where the trenches between tracks are filled with a soft magnetic material is provided. The soft magnetic material provides a low magnetic impedance path to the soft underlayer such that fringe fields from the write head are conducted to the soft underlayer without having a negative effect such as adjacent track erasure. A method of manufacturing the media includes a nano-imprint step and ion milling out the data layer to create the trenches. A B2O3 material allows the data layer to be ion milled out without redeposition bridging the B2O3 layer thus preventing lift off of the mask. The trenches are then filled by ion deposition with the layers of ferromagnetic material separated by an anti-ferromagnetic coupling that causes the flux to be conducted to the soft underlayer and remnant flux to rotate within the island and not into adjacent tracks.
摘要翻译：提供了具有离散轨道记录结构的记录介质设计，其中轨道之间的沟槽被软磁材料填充。软磁材料提供到软底层的低磁阻抗路径，使得来自写头的边缘场被传导到软底层，而不会产生诸如相邻轨道擦除的负面影响。制造介质的方法包括纳米压印步骤和离子铣出数据层以产生沟槽。 B2O3材料允许将数据层离子研磨而不再沉积B2O3层，从而防止掩模剥离。然后通过离子沉积来填充沟槽，铁磁材料层通过反铁磁耦合分开，这导致通量被引导到软底层，剩余通量在岛内旋转而不进入相邻的轨道。

8. 发明授权

US07618721B1 Master for printing servo patterns 有权
标题翻译：主机打印伺服模式
公开(公告)号：US07618721B1
公开(公告)日：2009-11-17
申请号：US11096519
申请日：2005-04-01
申请人： Michael Mallary
发明人： Michael Mallary
IPC分类号： G11B5/66
CPC分类号： C23C28/00 , B82Y10/00 , C23C28/021 , C23C28/023 , C23C28/321 , C23C28/322 , C23C28/34 , C23C28/345 , G11B5/743 , G11B5/855 , G11B5/865 , Y10T428/1164 , Y10T428/1171
摘要： A master is provided for use in a magnetic printing process. Illustratively, the master is used for printing servo patterns on a magnetic recording medium. The master includes a substrate on which a magnetic underlayer material is disposed. A second magnetic material is disposed over the magnetic underlayer material so as to form a plurality of teeth adapted for use in the magnetic printing process. The teeth may be formed in the second material by an additive or subtractive process. Further, the dimensions of the teeth may be selected to optimize use of the master in a magnetic printing process on perpendicular media.
摘要翻译：提供用于磁性印刷工艺的主机。说明性地，主机用于在磁记录介质上打印伺服图案。主机包括其上设置有磁性底层材料的基板。第二磁性材料设置在磁性底层材料上方，以便形成适于在磁性印刷过程中使用的多个齿。齿可以通过添加或减色法在第二材料中形成。此外，可以选择齿的尺寸以在垂直介质上的磁性印刷工艺中优化主体的使用。

9. 发明授权

US07573683B1 Write heads with floating side shields and manufacturing methods 有权
标题翻译：用浮动边屏蔽和制造方法写头
公开(公告)号：US07573683B1
公开(公告)日：2009-08-11
申请号：US11483408
申请日：2006-07-06
申请人： Mourad Benakli , Michael Mallary
发明人： Mourad Benakli , Michael Mallary
IPC分类号： G11B5/127
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/3116 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： A write head for a media drive suited for perpendicularly recording data in adjacent magnetic recording media, the media having a magnetic recording layer and a soft underlayer (SUL). The write head has a pole tip, a write yoke connected to the pole tip, a write return yoke, a write shield, one or more conductive coils surrounding the write yoke, and one or more side shields disposed in close proximity to the pole tip. The write return yoke connects to the write yoke on one end and the write shield on a different end. The one or more side shields are separated from the pole tip and write shields by a non-magnetic material and therefore are “floating” and not directly coupled to the write shield or pole tip.
摘要翻译：适用于在相邻磁记录介质中垂直记录数据的媒体驱动器的写头，所述介质具有磁记录层和软底层（SUL）。写头具有极尖，连接到极尖的写磁轭，写入返回磁轭，写入屏蔽，围绕写入磁轭的一个或多个导电线圈以及设置在极尖附近的一个或多个侧屏蔽。写入返回磁轭在一端连接到写磁轭，而在另一端连接写屏蔽。一个或多个侧面屏蔽件与极尖分离，并由非磁性材料写入屏蔽，因此“浮动”并且不直接耦合到写入屏蔽或极尖。

10. 发明授权

US07477470B2 Controlling head flying height based on head heater resistance 有权
标题翻译：基于头部加热器电阻控制头部飞行高度
公开(公告)号：US07477470B2
公开(公告)日：2009-01-13
申请号：US11705295
申请日：2007-02-12
申请人： Michael Leis , Michael Mallary
发明人： Michael Leis , Michael Mallary
IPC分类号： G11B21/21 , G11B5/60
CPC分类号： G11B5/6064 , G11B5/607
摘要： A fly height controller measures electrical resistance of a heater element attached to a read/write head as an indication of head temperature and associated flying height relative to a data storage disk, and responds to the measured resistance of the heater element by varying a fly height adjustment signal applied to the heater element to change the temperature of the head and its resulting flying height.
摘要翻译：飞行高度控制器测量附接到读/写头的加热器元件的电阻，作为相对于数据存储盘的头部温度和相关联的飞行高度的指示，并且通过改变飞行高度来响应加热器元件的测量电阻调节信号施加到加热器元件以改变头部的温度及其产生的飞行高度。

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