公开(公告)号：US20050264909A1

公开(公告)日：2005-12-01

申请号：US11176414

申请日：2005-07-06

申请人： Hae Jung Lee ,  Sang Lee ,  Keung Cho

发明人： Hae Jung Lee ,  Sang Lee ,  Keung Cho

IPC分类号： G11B21/02 ,  G11B5/00 ,  G11B5/02 ,  G11B5/455

CPC分类号： G11B5/455 ,  G11B2005/0008

摘要： The invention includes a testing method which may be applied to at least one writer in a disk drive during the self-test phase to generate write parameters, focused on the Over Shoot Control (OSC) of the write current parameter to improve the reliability of write operations by that writer. The Minimum OSC is used for write operations in normal temperatures. The Optimum OSC is used for a first lower temperature range, preferably between essentially 15 degrees Centigrade and essentially 5 degrees Centigrade. The Maximum OSC is preferred below essentially 5 degrees Centigrade. The Minimum OSC should preferably guarantee both an Adjacent Track Write (ATW) criteria, as well as guarantee a Write Induced Instability (WII) criteria. The invention includes the write parameter collection, as well as the disk drive containing the generated write parameter collection. The invention also includes the method of using that write parameter collection to control a writer while writing to tracks belonging to the radial zone collection and program systems implementing the invention's methods.

摘要翻译： 本发明包括测试方法，其可以在自检阶段期间应用于磁盘驱动器中的至少一个写入器以产生写入参数，其集中在写入当前参数的过拍控制（OSC）上，以提高写入的可靠性 作家的作业。 最低OSC用于正常温度下的写入操作。 最佳OSC用于第一较低温度范围，优选在基本上15摄氏度和基本上5摄氏度之间。 最高OSC优选低于基本上5摄氏度。 最小OSC应优选保证相邻轨道写入（ATW）标准，并保证写入诱发不稳定（WII）标准。 本发明包括写入参数集合以及包含生成的写入参数集合的磁盘驱动器。 本发明还包括使用该写入参数集来控制写入器同时写入属于径向区域集合的轨道和实现本发明方法的程序系统的方法。

公开(公告)号：US07253978B2

公开(公告)日：2007-08-07

申请号：US11176414

申请日：2005-07-06

申请人： Hae Jung Lee ,  Sang Lee ,  Keung Youn Cho

发明人： Hae Jung Lee ,  Sang Lee ,  Keung Youn Cho

IPC分类号： G11B27/36

CPC分类号： G11B5/455 ,  G11B2005/0008

摘要： The invention includes a testing method which may be applied to at least one writer in a disk drive during the self-test phase to generate write parameters, focused on the Over Shoot Control (OSC) of the write current parameter to improve the reliability of write operations by that writer. The Minimum OSC is used for write operations in normal temperatures. The Optimum OSC is used for a first lower temperature range, preferably between essentially 15 degrees Centigrade and essentially 5 degrees Centigrade. The Maximum OSC is preferred below essentially 5 degrees Centigrade. The Minimum OSC should preferably guarantee both an Adjacent Track Write (ATW) criteria, as well as guarantee a Write Induced Instability (WII) criteria. The invention includes the write parameter collection, as well as the disk drive containing the generated write parameter collection. The invention also includes the method of using that write parameter collection to control a writer while writing to tracks belonging to the radial zone collection and program systems implementing the invention's methods.

摘要翻译： 本发明包括测试方法，其可以在自检阶段期间应用于磁盘驱动器中的至少一个写入器以产生写入参数，其集中在写入当前参数的过拍控制（OSC）上，以提高写入的可靠性 作家的作业。 最低OSC用于正常温度下的写入操作。 最佳OSC用于第一较低温度范围，优选在基本上15摄氏度和基本上5摄氏度之间。 最高OSC优选低于基本上5摄氏度。 最小OSC应优选保证相邻轨道写入（ATW）标准，并保证写入诱发不稳定（WII）标准。 本发明包括写入参数集合以及包含生成的写入参数集合的磁盘驱动器。 本发明还包括使用该写入参数集来控制写入器同时写入属于径向区域集合的轨道和实现本发明方法的程序系统的方法。

公开(公告)号：US07089649B2

公开(公告)日：2006-08-15

申请号：US10256553

申请日：2002-09-26

申请人： Geng Wang ,  Hae Jung Lee ,  Keung Youn Cho ,  Sang Lee

发明人： Geng Wang ,  Hae Jung Lee ,  Keung Youn Cho ,  Sang Lee

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3136 ,  G11B5/012 ,  G11B5/455 ,  G11B5/4806 ,  G11B5/4833 ,  G11B5/484 ,  Y10T29/49025 ,  Y10T29/49027 ,  Y10T29/49028 ,  Y10T29/49032 ,  Y10T29/49036

摘要： Thermal pole tip protrusion is caused by materials in and around head slider expanding during write operations till they protrude, leading to contact with the rotating disk surface, altering the flying height and often wearing down part of the disk surface. While well known that read-write heads expand during writing, the inventors who recognized this situation's significance, particularly as flying height decreases and data rates increase, both required for high areal density disk drives. The inventors realized that they could detect the problem at the spin stand level by testing head gimbal assemblies to reliably, and inexpensively, predict the tendency for thermal pole tip protrusion. This leads to selection of head gimbal assemblies, which do not have the thermal pole tip protrusion tendency. The selected head gimbal assemblies have better reliability, as do actuators and disk drives made with the selected head gimbal assemblies.

摘要翻译： 热敏头尖突起由写入操作期间头部滑块内和周围的材料引起，直到它们突出，导致与旋转盘表面接触，改变飞行高度并经常磨损盘表面的一部分。 虽然众所周知，读写头在写入期间扩展，但是认识到这种情况的重要性的发明人，特别是当高密度磁盘驱动器都需要飞行高度降低和数据速率增加时。 本发明人意识到，它们可以通过测试头万向架组件可靠且廉价地预测热极尖端突起的趋势来检测旋转台水平的问题。 这导致了不具有热极尖突起倾向的头万向节组件的选择。 所选择的头万向架组件具有更好的可靠性，与使用所选择的头万向架组件制造的致动器和磁盘驱动器一样。

公开(公告)号：US06975475B2

公开(公告)日：2005-12-13

申请号：US10294115

申请日：2002-11-14

申请人： Hae Jung Lee ,  Sang Lee ,  Keung Youn Cho

发明人： Hae Jung Lee ,  Sang Lee ,  Keung Youn Cho

IPC分类号： A45F5/00 ,  A45F5/10 ,  B65G7/12 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B20/10 ,  G11B20/18 ,  G11B27/36

CPC分类号： B65G7/12 ,  G11B5/012 ,  G11B5/02 ,  G11B20/10009 ,  G11B20/1816 ,  G11B27/36 ,  G11B2005/0013 ,  G11B2020/10898 ,  G11B2220/20

摘要： The invention includes a testing method which may be applied to at least one writer in a disk drive during the self-test phase to generate write parameters, focused on the Over Shoot Control (OSC) of the write current parameter to improve the reliability of write operations by that writer. The Minimum OSC is used for write operations in normal temperatures. The Optimum OSC is used for a first lower temperature range, preferably between essentially 15° Centigrade and essentially 5° Centigrade. The Maximum OSC is preferred below essentially 5° C. The Minimum OSC should preferably guarantee both an Adjacent Track Write (ATW) criteria, as well as guarantee a Write Induced Instability (WII) criteria. The invention includes the write parameter collection, as well as the disk drive containing the generated write parameter collection. The invention also includes the method of using that write parameter collection to control a writer while writing to tracks belonging to the radial zone collection and program systems implementing the invention's methods.

摘要翻译： 本发明包括测试方法，其可以在自检阶段期间应用于磁盘驱动器中的至少一个写入器以产生写入参数，其集中在写入当前参数的过拍控制（OSC）上，以提高写入的可靠性 作家的作业。 最低OSC用于正常温度下的写入操作。 最佳OSC用于第一较低的温度范围，优选在15摄氏度和基本上5摄氏度之间。 最小OSC优选低于基本上5°C。最小OSC应优选地保证相邻轨道写入（ATW）标准，以及保证写入诱发不稳定性（WII）标准。 本发明包括写入参数集合以及包含生成的写入参数集合的磁盘驱动器。 本发明还包括使用该写入参数集来控制写入器同时写入属于径向区域集合的轨道和实现本发明方法的程序系统的方法。

公开(公告)号：US06791780B2

公开(公告)日：2004-09-14

申请号：US09978904

申请日：2001-10-15

申请人： Hae Jung Lee ,  Sang Lee ,  Keung Youn Cho ,  Ken Bovatsek

发明人： Hae Jung Lee ,  Sang Lee ,  Keung Youn Cho ,  Ken Bovatsek

IPC分类号： G11B503

CPC分类号： G11B5/012 ,  G11B5/035 ,  G11B20/10009 ,  G11B27/3027 ,  G11B27/36 ,  G11B2005/0013

摘要： The present invention is a method and system to optimize a write channel in a hard disk drive. The method comprises providing a disk having a at least one side with a plurality of tracks, and selecting a target track from the plurality of tracks. Data is written at least once on a predetermined plurality of tracks adjacent to either side of the target track and on the target track. Data is also written a predetermined number of times on tracks immediately adjacent to the target track. Data written on the predetermined plurality of tracks adjacent to either side of the target track and on the target track is then read. The process then determines if a number of errors on the tracks is greater than a predetermined criteria, if so, a write current value of the write channel is decreased, otherwise the write current value is increased.

摘要翻译： 本发明是一种优化硬盘驱动器中的写入通道的方法和系统。 该方法包括提供具有多个轨迹的至少一个侧面的盘，以及从多个轨迹中选择目标轨迹。 在与目标轨道的任一侧相邻的预定多个轨道上和目标轨迹上至少写入一次数据。 在与目标轨迹相邻的轨迹上也写入预定次数的数据。 然后读取写入到与目标轨道的任一侧相邻的预定多个轨道上的数据和目标轨道上的数据。 然后，该过程确定磁道上的多个错误是否大于预定标准，如果是，则写入通道的写入当前值减小，否则写入电流值增加。

公开(公告)号：US08139308B2

公开(公告)日：2012-03-20

申请号：US12108679

申请日：2008-04-24

申请人： Young-Shin Kim ,  Hae Jung Lee ,  Chang-Hwan Lee

发明人： Young-Shin Kim ,  Hae Jung Lee ,  Chang-Hwan Lee

IPC分类号： G11B21/02

CPC分类号： G11B5/6064 ,  G11B5/607

摘要： A method of controlling a flying height of a magnetic head of a hard disk drive includes calculating a corrected flying on demand (FOD) voltage to correct a difference between a measured flying height measured by applying a burn-in FOD voltage corresponding to a target flying height and a burn-in flying height in a reference FOD voltage profile corresponding to the burn-in FOD voltage, using the reference FOD voltage profile, in the reference FOD voltage profile that is a profile of a second signal for calculating the flying height of the magnetic head with respect to a first signal for calculating an FOD voltage that allows an end of the magnetic head to thermally expand and protrude when applied to a heater included in the magnetic head, and applying an applied FOD voltage obtained by applying the corrected FOD voltage, to the burn-in FOD voltage, to control the flying height of the magnetic head. Thus, the reliability in the read/write operation can be improved and performance of the hard disk drive can be improved.

摘要翻译： 一种控制硬盘驱动器的磁头的飞行高度的方法包括计算校正的飞行点数（FOD）电压，以校正通过应用与目标飞行相对应的老化FOD电压测量的测量飞行高度之间的差异 在参考FOD电压分布中使用参考FOD电压分布，该参考FOD电压曲线是用于计算飞行高度的第二个信号的曲线，该参考FOD电压曲线对应于老化FOD电压的参考FOD电压曲线中的高度和老化飞行高度 所述磁头相对于用于计算FOD电压的第一信号，所述第一信号允许当施加到包括在所述磁头中的加热器时磁头的端部热膨胀和突出，以及施加通过应用校正的FOD而获得的施加的FOD电压 电压，到老化的FOD电压，以控制磁头的飞行高度。 因此，可以提高读/写操作的可靠性，并且可以提高硬盘驱动器的性能。

公开(公告)号：US20110242707A1

公开(公告)日：2011-10-06

申请号：US13079054

申请日：2011-04-04

申请人： Yong-Bae YOON ,  Hae Jung Lee

发明人： Yong-Bae YOON ,  Hae Jung Lee

IPC分类号： G11B5/23 ,  G11B21/24

CPC分类号： G11B5/3116 ,  G11B5/012 ,  G11B5/1871 ,  G11B5/23

摘要： A hard disk drive includes a magnetic head to write data to a disk by magnetizing the disk using a leakage magnetic flux that leaks in a disk direction through a write gap provided between a write pole to apply a magnetic field to the disk and a shield provided separately from the write pole, and an actuator arm allowing the magnetic head to pivot over the disk. In the hard disk drive, the write gap is asymmetrically formed to a left and a right with respect to a center axis line of the write pole according to a movement direction of the magnetic head when the magnetic head pivots over the disk.

摘要翻译： 硬盘驱动器包括磁头，用于通过使用漏磁通来磁盘来写数据到磁盘，所述泄漏磁通通过设置在写磁极之间的写入间隙而提供磁盘，该写入间隙设置在磁盘上并提供屏蔽 与写入极分开，以及允许磁头枢转在盘上的致动器臂。 在硬盘驱动器中，当磁头枢转在盘上时，根据磁头的移动方向，写入间隙相对于写入极的中心轴线向左和向右不对称地形成。

公开(公告)号：US09825047B2

公开(公告)日：2017-11-21

申请号：US13587612

申请日：2012-08-16

申请人： Sung Yoon Cho ,  Hae Jung Lee ,  Byung Soo Park ,  Eun Mi Kim

发明人： Sung Yoon Cho ,  Hae Jung Lee ,  Byung Soo Park ,  Eun Mi Kim

IPC分类号： H01L23/52 ,  H01L27/11526 ,  H01L27/11548 ,  H01L27/11556 ,  H01L27/11573 ,  H01L27/11575 ,  H01L27/11582

CPC分类号： H01L27/11526 ,  H01L27/11548 ,  H01L27/11556 ,  H01L27/11573 ,  H01L27/11575 ,  H01L27/11582

摘要： A non-volatile memory device according to an aspect of the present disclosure includes a substrate, a plurality of word lines stacked over the substrate and having a stepwise pattern, wherein the plurality of word lines each have a pad region, and a plurality of contact plugs coupled to the respective pad regions of the word lines, wherein a width of a pad region of a first one of the plurality of word lines is greater than a width of a pad region of a second word line lower than the first word line.

公开(公告)号：US07957086B2

公开(公告)日：2011-06-07

申请号：US12031943

申请日：2008-02-15

申请人： Chang-Hwan Lee ,  Hae Jung Lee

发明人： Chang-Hwan Lee ,  Hae Jung Lee

IPC分类号： G11B5/02

CPC分类号： G11B5/6064 ,  G11B5/607

摘要： A method of controlling a flying height of a magnetic head of a hard disk drive apparatus includes producing a reference FOD (flying on demand) voltage profile defining a relationship between the flying height of the magnetic head and an FOD voltage at a measured temperature, wherein an end of the magnetic head thermally expands and protrudes when the FOD voltage is applied to a heater included in the magnetic head and setting the reference FOD voltage profile that is corrected using a reference maximum flying height of the magnetic head that is preset at room temperature, as an applied FOD voltage profile to control the flying height of the magnetic head.

摘要翻译： 一种控制硬盘驱动装置的磁头的飞行高度的方法包括产生定义磁头的飞行高度与测量温度下的FOD电压之间关系的参考FOD（随需飞行）电压分布，其中 当将FOD电压施加到包括在磁头中的加热器时，磁头的端部热膨胀并突出，并且使用预设在室温下的磁头的参考最大飞行高度来设置校正的参考FOD电压分布 作为应用的FOD电压分布来控制磁头的飞行高度。

公开(公告)号：US20080198497A1

公开(公告)日：2008-08-21

申请号：US12031943

申请日：2008-02-15

申请人： Chang-Hwan Lee ,  Hae Jung Lee

发明人： Chang-Hwan Lee ,  Hae Jung Lee

IPC分类号： G11B5/02

CPC分类号： G11B5/6064 ,  G11B5/607

摘要： A method of controlling a flying height of a magnetic head of a hard disk drive apparatus includes producing a reference FOD (flying on demand) voltage profile defining a relationship between the flying height of the magnetic head and an FOD voltage at a measured temperature, wherein an end of the magnetic head thermally expands and protrudes when the FOD voltage is applied to a heater included in the magnetic head and setting the reference FOD voltage profile that is corrected using a reference maximum flying height of the magnetic head that is preset at room temperature, as an applied FOD voltage profile to control the flying height of the magnetic head.

摘要翻译： 一种控制硬盘驱动装置的磁头的飞行高度的方法包括产生定义磁头的飞行高度与测量温度下的FOD电压之间关系的参考FOD（随需飞行）电压分布，其中 当将FOD电压施加到包括在磁头中的加热器时，磁头的端部热膨胀并突出，并且使用预设在室温下的磁头的参考最大飞行高度来设置校正的参考FOD电压分布 作为应用的FOD电压分布来控制磁头的飞行高度。