公开(公告)号：KR1020090097366A

公开(公告)日：2009-09-16

申请号：KR1020080022452

申请日：2008-03-11

Applicant: 재단법인서울대학교산학협력재단

Inventor： 최석봉

IPC: G11B5/00 ,  G11B9/02 ,  G11C11/15

CPC classification number: G11C11/161 ,  G11C11/1659 ,  G11C11/1675 ,  G11C11/15 ,  G11C19/0841 ,  G11C2213/77

Abstract: A current driven magnetic domain wall movement memory device, an operating method and a forming method thereof are provided to improve the moving speed of magnetic domain wall by arranging a data storage pattern including a ferromagnetic material and a junction pattern of non-magnetic conductive material. A current driven magnetic domain wall movement memory device comprises a data storage pattern(110) including unit regions(113) arranged on a substrate and a ferromagnetic material, and a junction pattern(120) made of non-magnetic conductor and progressing in contact with the data storage pattern. The amount of conductive electron of the data storage pattern is increased by the contact between the data storage pattern and the junction pattern. The mean free path by the thermal motion of conductive electron of the data storage pattern is greater than the total thickness of the data storage pattern and the junction pattern.

Abstract translation: 提供电流驱动磁畴壁移动存储装置，其操作方法及其形成方法，通过布置包括铁磁材料和非磁性导电材料的结型图案的数据存储图案来提高磁畴壁的移动速度。 电流驱动的磁畴壁移动存储装置包括数据存储图案（110），其包括布置在基板上的单位区域（113）和铁磁材料，以及由非磁性导体制成并且与 数据存储模式。 数据存储模式的导电电子数量通过数据存储模式和结型式之间的接触而增加。 通过数据存储模式的导电电子的热运动的平均自由程大于数据存储模式和结型式的总厚度。

公开(公告)号：KR100937737B1

公开(公告)日：2010-01-19

申请号：KR1020080022452

申请日：2008-03-11

Applicant: 재단법인서울대학교산학협력재단

Inventor： 최석봉

IPC: G11B5/00 ,  G11B9/02 ,  G11C11/15

CPC classification number: G11C11/161 ,  G11C11/1659 ,  G11C11/1675

Abstract: 본 발명은 전류인가 자벽이동 기억 장치, 그 동작 방법, 및 그 형성 방법을 제공한다. 이 장치는 기판 상에 배치된 복수의 단위영역을 포함하는 정보저장패턴, 및 정보저장패턴과 접촉하여 진행하는 접합패턴을 포함한다. 상기 정보저장 패턴은 강자성체를 포함하고, 상기 접합패턴은 비자성 도전체이다.
전류인가, 자벽이동, 자벽, 자구, 비휘발성 이동성 정보 저장 장치

公开(公告)号：KR1020090032424A

公开(公告)日：2009-04-01

申请号：KR1020070097665

申请日：2007-09-28

Applicant: 재단법인서울대학교산학협력재단 ,  삼성전자주식회사

Inventor： 최석봉 ,  문경웅

IPC: H01F7/06

Abstract: A method for stabilizing a current of an electromagnet and a method for reducing a stabilizing time are provided to prevent a current hopping phenomenon generated in changing a current supplied to an electromagnet. An electric condenser is parallel connected to an electromagnet in order to prevent a hopping phenomenon of an electromagnet current generated according to a change of a current supplied to the electromagnet. A change of a current of a power supply supplied to the electromagnet is successively controlled. A current value flowing to the electromagnet is changed according to a control of an output value of the power supply. A capacitance of the electric condenser is reduced according to a control of the output value of the power supply. A current value flowing to the electromagnet is controlled.

Abstract translation: 提供一种用于稳定电磁体的电流的方法和用于减少稳定时间的方法，以防止在改变提供给电磁体的电流时产生的电流跳变现象。 电容器与电磁体并联连接，以防止根据供给电磁铁的电流的变化而产生的电磁体电流的跳跃现象。 依次控制供给电磁铁的电源电流的变化。 流向电磁体的电流值根据电源的输出值的控制而变化。 电容器的电容根据电源的输出值的控制而减小。 控制流向电磁体的电流值。

公开(公告)号：KR1020090032426A

公开(公告)日：2009-04-01

申请号：KR1020070097668

申请日：2007-09-28

Applicant: 재단법인서울대학교산학협력재단 ,  삼성전자주식회사

Inventor： 최석봉 ,  김갑진

IPC: G01J11/00

Abstract: A quadrant photodiode and a noise elimination method thereof are provided to obtain pure optical AC signal by minimizing the noise quadrant photodiode by the oscillation of the optical system through signal modulation. An optical measurement system using a quadrant photodiode comprises X-axis differential signal of AC current measured in the quadrant photodiode, Y-axis differential signal of AC current and the sum signal of AC current are processed through signal modulation so that pure signal is obtained. The signal modulation removes signal with the signal change by X-axis or Y-axis vibration due to oscillation of the optical system, or with the signal change by the focus shift according to the movement of an objective lens.

Abstract translation: 提供象限光电二极管及其噪声消除方法，以通过信号调制使光学系统的振荡使噪声象限光电二极管最小化来获得纯光AC信号。 使用象限光电二极管的光学测量系统包括在象限光电二极管中测量的交流电流的X轴差分信号，通过信号调制处理交流电流的Y轴差分信号和AC信号的和信号，从而获得纯信号。 信号调制通过由于光学系统的振荡而由X轴或Y轴振动引起的信号变化的信号，或者根据物镜的移动使信号随着焦点偏移而变化。