公开(公告)号：US07881002B2

公开(公告)日：2011-02-01

申请号：US11946074

申请日：2007-11-28

申请人： Hoo-san Lee ,  Hyun-jei Kim ,  Sung-hoon Choa ,  Hoon-sang Oh

发明人： Hoo-san Lee ,  Hyun-jei Kim ,  Sung-hoon Choa ,  Hoon-sang Oh

IPC分类号： G11B5/02

CPC分类号： G11B5/02 ,  G11B2005/001

摘要： Provided is a method of increasing recording density and a control apparatus for increasing the recording density. The method includes applying a recording current corresponding to a recording signal to a magnetic head of a hard disc drive (HDD), and limiting a current value being applied to the magnetic head to a critical value when the recording current reaches the critical value. In the method, a rising time is reduced by using an overshoot recording current and the recording current is limited to a critical value when an actual recording current reaches the critical value. Thus, write track widths (WTWs) can be reduced at a low recording frequency, thereby increasing tracks per inch (TPI).

摘要翻译： 提供了增加记录密度的方法和用于提高记录密度的控制装置。 该方法包括将对应于记录信号的记录电流施加到硬盘驱动器（HDD）的磁头，并且当记录电流达到临界值时将施加到磁头的电流值限制为临界值。 在该方法中，通过使用过冲记录电流来降低上升时间，并且当实际记录电流达到临界值时，记录电流被限制在临界值。 因此，可以在低记录频率下减小写轨道宽度（WTW），从而增加每英寸轨迹（TPI）。

公开(公告)号：US20090002875A1

公开(公告)日：2009-01-01

申请号：US12018430

申请日：2008-01-23

申请人： Hoo-san Lee ,  Hoon-sang Oh ,  Sung-hoon Choa

发明人： Hoo-san Lee ,  Hoon-sang Oh ,  Sung-hoon Choa

IPC分类号： G11B5/596 ,  B05D5/12

CPC分类号： G11B5/59655 ,  G11B5/59688

摘要： A magnetic recording medium and a method of fabricating the same are provided. The magnetic recording medium in which a position for magnetic recording is patterned with a magnetic material, includes a magnetic recording layer which includes a data area having a plurality of data tracks, and a servo area having a servo burst for following the data tracks, wherein the servo burst includes a plurality of bursts disposed in a zigzag structure along a downtrack direction, and each of the bursts includes a plurality of burst pieces having different coercivities from each other. The magnetic recording medium is subjected to two servo-recording processes, so that a signal similar to an alternative signal written in a burst having a burst pattern used in a related art continuous medium can be obtained.

摘要翻译： 提供了一种磁记录介质及其制造方法。 其中用磁性材料构图磁记录位置的磁记录介质包括磁记录层，该磁记录层包括具有多个数据磁道的数据区，以及具有用于跟随数据磁道的伺服脉冲串的伺服区，其中 伺服脉冲串包括沿着下行方向以锯齿形结构设置的多个脉冲串，并且每个脉冲串包括彼此具有不同矫顽力的多个脉冲片。 对磁记录介质进行两次伺服记录处理，从而可以获得类似于在现有技术的连续介质中使用的具有突发图案的突发中写入的备选信号的信号。

公开(公告)号：US07885026B2

公开(公告)日：2011-02-08

申请号：US12018430

申请日：2008-01-23

申请人： Hoo-san Lee ,  Hoon-sang Oh ,  Sung-hoon Choa

发明人： Hoo-san Lee ,  Hoon-sang Oh ,  Sung-hoon Choa

IPC分类号： G11B5/09

CPC分类号： G11B5/59655 ,  G11B5/59688

摘要： A magnetic recording medium and a method of fabricating the same are provided. The magnetic recording medium in which a position for magnetic recording is patterned with a magnetic material, includes a magnetic recording layer which includes a data area having a plurality of data tracks, and a servo area having a servo burst for following the data tracks, wherein the servo burst includes a plurality of bursts disposed in a zigzag structure along a downtrack direction, and each of the bursts includes a plurality of burst pieces having different coercivities from each other. The magnetic recording medium is subjected to two servo-recording processes, so that a signal similar to an alternative signal written in a burst having a burst pattern used in a related art continuous medium can be obtained.

摘要翻译： 提供了一种磁记录介质及其制造方法。 其中用磁性材料构图磁记录位置的磁记录介质包括磁记录层，该磁记录层包括具有多个数据磁道的数据区，以及具有用于跟随数据磁道的伺服脉冲串的伺服区，其中 伺服脉冲串包括沿着下行方向以锯齿形结构设置的多个脉冲串，并且每个脉冲串包括彼此具有不同矫顽力的多个脉冲片。 对磁记录介质进行两次伺服记录处理，从而可以获得类似于在现有技术的连续介质中使用的具有突发图案的突发中写入的备选信号的信号。

公开(公告)号：US20130064918A1

公开(公告)日：2013-03-14

申请号：US13621204

申请日：2012-09-15

申请人： Hae-sung Kim ,  Hyoung-soo Ko ,  Seung-bum Hong ,  Jin-seung Sohn ,  Sung-hoon Choa ,  Chee-kheng Lim

发明人： Hae-sung Kim ,  Hyoung-soo Ko ,  Seung-bum Hong ,  Jin-seung Sohn ,  Sung-hoon Choa ,  Chee-kheng Lim

IPC分类号： B29C59/00

CPC分类号： G03F1/14 ,  B29C59/002 ,  B82Y10/00 ,  B82Y40/00 ,  G03F7/0002 ,  Y10T428/24917

摘要： A nano imprint master and a method of manufacturing the same are provided. The method includes: implanting conductive metal ions into a substrate including quartz to form a conductive layer inside the quartz substrate; coating a resist on the quartz substrate in which the conductive layer is formed, to form a resist coating layer; exposing the resist coating layer to an electron beam to form micropatterns; etching the quartz substrate by using the resist coating layer, in which the micropatterns are formed, as a mask; and removing the resist coating layer to obtain a master in which micropatterns are formed.

公开(公告)号：US08339829B2

公开(公告)日：2012-12-25

申请号：US13064894

申请日：2011-04-25

申请人： Chee-kheng Lim ,  Eun-hyoung Cho ,  Sung-hoon Choa

发明人： Chee-kheng Lim ,  Eun-hyoung Cho ,  Sung-hoon Choa

IPC分类号： G11C19/00

CPC分类号： G11C11/14 ,  G11C19/0808 ,  Y10S977/933 ,  Y10S977/935

摘要： An information storage device using movement of magnetic domain walls includes a writing magnetic layer having a magnetic domain wall. A stack structure is formed on the writing magnetic layer. The stack structure includes a connecting magnetic layer and an information storing magnetic layer stacked sequentially. The information storage device also includes a reader for reading information stored in the information storing magnetic layer.

摘要翻译： 使用磁畴壁移动的信息存储装置包括具有磁畴壁的书写磁性层。 在写磁层上形成堆叠结构。 堆叠结构包括依次堆叠的连接磁性层和存储磁性层的信息。 信息存储装置还包括用于读取存储在信息存储磁性层中的信息的读取器。

公开(公告)号：US07864556B2

公开(公告)日：2011-01-04

申请号：US11987925

申请日：2007-12-06

申请人： Chee-kheng Lim ,  Sung-hoon Choa

发明人： Chee-kheng Lim ,  Sung-hoon Choa

IPC分类号： G11C19/00

CPC分类号： G11C19/0808 ,  Y10S977/933

摘要： Example embodiments may provide magnetic domain information storage devices with trenches and a method of manufacturing the information storage device. Example embodiment information storage devices may include a magnetic layer on a substrate having a plurality of magnetic domains and a power unit for moving magnetic domain walls. Magnetic layers may be parallel to the substrate, and a plurality of trenches in the magnetic layer may be perpendicular to the substrate. Portions of a lower surface of the magnetic layer corresponding to trenches may protrude downward.

摘要翻译： 示例性实施例可以提供具有沟槽的磁畴信息存储设备和制造信息存储设备的方法。 示例性实施例信息存储设备可以包括在具有多个磁畴的基板上的磁性层和用于移动磁畴壁的功率单元。 磁性层可以平行于衬底，并且磁性层中的多个沟槽可以垂直于衬底。 对应于沟槽的磁性层的下表面的部分可以向下突出。

公开(公告)号：US20080152794A1

公开(公告)日：2008-06-26

申请号：US11980353

申请日：2007-10-31

申请人： Chee-kheng Lim ,  Eun-hyoung Cho ,  Sung-hoon Choa

发明人： Chee-kheng Lim ,  Eun-hyoung Cho ,  Sung-hoon Choa

IPC分类号： B05D5/00 ,  G11B5/82

CPC分类号： G11C11/14 ,  G11C19/0808 ,  Y10S977/933 ,  Y10S977/935

摘要： An information storage device using movement of magnetic domain walls includes a writing magnetic layer having a magnetic domain wall. A stack structure is formed on the writing magnetic layer. The stack structure includes a connecting magnetic layer and an information storing magnetic layer stacked sequentially. The information storage device also includes a reader for reading information stored in the information storing magnetic layer.

摘要翻译： 使用磁畴壁移动的信息存储装置包括具有磁畴壁的书写磁性层。 在写磁层上形成堆叠结构。 堆叠结构包括依次堆叠的连接磁性层和存储磁性层的信息。 信息存储装置还包括用于读取存储在信息存储磁性层中的信息的读取器。

公开(公告)号：US20080137395A1

公开(公告)日：2008-06-12

申请号：US11764432

申请日：2007-06-18

申请人： In-jun Hwang ,  Young-jin Cho ,  Sung-hoon Choa ,  Kee-won Kim ,  Kwang-seok Kim

发明人： In-jun Hwang ,  Young-jin Cho ,  Sung-hoon Choa ,  Kee-won Kim ,  Kwang-seok Kim

IPC分类号： G11C19/00

CPC分类号： G11C11/15 ,  G11C19/0808 ,  G11C19/0841

摘要： Provided are a data storage device using magnetic domain wall movement and a method of operating the data storage device. The data storage device includes a first magnetic layer for writing data having two magnetic domains magnetized in opposite directions to each other and a second magnetic layer for storing data formed on at least one side of the first magnetic layer. The data storage device may further include a data recording device connected to both ends of the first magnetic layer and the end of the second magnetic layer which is not adjacent to the first magnetic layer, a read head formed a predetermined distance from the end of the second magnetic layer which is not adjacent to the first magnetic layer, and a current detector connected to the read head and the data recording device.

摘要翻译： 提供了使用磁畴壁移动的数据存储装置和操作数据存储装置的方法。 数据存储装置包括用于写入具有彼此相反方向磁化的两个磁畴的数据的第一磁性层和用于存储形成在第一磁性层的至少一侧上的数据的第二磁性层。 数据存储装置还可以包括连接到第一磁性层的两端和不与第一磁性层相邻的第二磁性层的端部的数据记录装置，从头部的端部形成预定距离的读取头 与第一磁性层不相邻的第二磁性层和连接到读取头和数据记录装置的电流检测器。

公开(公告)号：US20080109182A1

公开(公告)日：2008-05-08

申请号：US11828516

申请日：2007-07-26

申请人： Dong-ki Min ,  Sung-hoon Choa ,  Seung-bum Hong

发明人： Dong-ki Min ,  Sung-hoon Choa ,  Seung-bum Hong

IPC分类号： G01C25/00

CPC分类号： H04N5/349

摘要： A method and apparatus for calibrating a position of an image sensor, and a method of detecting the position of an image sensor are provided. The method of calibrating the position of an image sensor includes: obtaining first image information corresponding to a first position of the image sensor and obtaining second image information corresponding to a second position of the image sensor, calculating cross-correlation values between the obtained first image information and second image information; determining whether or not the calculated cross-correlation values are symmetrical; setting a driving power value of the image sensor for moving the image sensor the distance between the first position to the second position as a reference driving power value for moving the image sensor one-pixel distance, if it is determined that the cross-correlation values are not symmetrical; and calibrating the position of the image sensor by using the set driving power value.

摘要翻译： 提供了用于校准图像传感器的位置的方法和装置以及检测图像传感器的位置的方法。 校准图像传感器的位置的方法包括：获得与图像传感器的第一位置相对应的第一图像信息，并获得与图像传感器的第二位置对应的第二图像信息，计算所获得的第一图像之间的互相关值 信息和第二图像信息; 确定所计算的互相关值是否对称; 设置图像传感器的驱动功率值，用于将图像传感器的距离移动到第一位置与第二位置之间，作为用于使图像传感器移动一像素距离的基准驱动功率值，如果确定互相关值 不对称 并使用设定的驱动功率值来校准图像传感器的位置。

公开(公告)号：US20050009315A1

公开(公告)日：2005-01-13

申请号：US10784144

申请日：2004-02-23

申请人： Woon-bae Kim ,  Sung-hoon Choa ,  Min-seog Choi

发明人： Woon-bae Kim ,  Sung-hoon Choa ,  Min-seog Choi

IPC分类号： B81C1/00 ,  B81B3/00 ,  B81B7/00 ,  H01L21/00 ,  H01L21/44 ,  H01L21/4763 ,  H01L21/60 ,  H01L23/10 ,  H01L23/12

CPC分类号： B81B7/0006 ,  H01L2924/0002 ,  H01L2924/00

摘要： A method for manufacturing micro electro-mechanical systems includes forming an insulation layer on an upper surface of a semiconductor substrate, forming a structure layer on an upper surface of the insulation layer and etching the structure layer, forming an under bump metal on a predetermined position of an upper surface of the structure layer, forming a via hole in a glass substrate corresponding to the position of the under bump metal and in a shape such that the via hole is larger in diameter at an upper surface of the glass substrate than at a lower surface of the glass substrate, wherein the glass substrate is bonded to the upper surface of the structure layer and creates a vacuum chamber that protects a structure of the structure layer, and arranging a solder ball in the via hole and bonding the solder ball to the under bump metal.

摘要翻译： 一种制造微电子机械系统的方法，包括在半导体衬底的上表面上形成绝缘层，在绝缘层的上表面上形成结构层并蚀刻结构层，在预定位置上形成凹凸金属 所述结构层的上表面在对应于所述凸块下金属的位置的玻璃基板中形成通孔，并且所述通孔在所述玻璃基板的上表面处的直径比在 玻璃基板的下表面，其中玻璃基板结合到结构层的上表面，并且形成保护结构层的结构的真空室，并且在通孔中布置焊球并将焊球接合到 下凸块金属。