公开(公告)号：US08559279B2

公开(公告)日：2013-10-15

申请号：US11984478

申请日：2007-11-19

Applicant: Sung-chul Lee ,  Sung-hoon Choa ,  Kwang-seok Kim

Inventor： Sung-chul Lee ,  Sung-hoon Choa ,  Kwang-seok Kim

IPC: G11B11/00

CPC classification number: G11C11/15 ,  G11C19/0841

Abstract: A data storage device using magnetic domain wall motion may include a first magnetic layer having a plurality of magnetic domains. A second magnetic layer may be connected to the first magnetic layer, and a connection layer may be disposed between the first and second magnetic layers. A resistive magnetic layer may be disposed between each of the first and second magnetic layers and the connection layer. Accordingly, when current is supplied to the data storage device to move a magnetic domain wall, the leakage of current in a connection between the magnetic layers may be reduced or prevented, thus conserving power.

Abstract translation: 使用磁畴壁运动的数据存储装置可以包括具有多个磁畴的第一磁性层。 第二磁性层可以连接到第一磁性层，并且连接层可以设置在第一和第二磁性层之间。 电阻性磁性层可以设置在第一和第二磁性层和连接层中的每一个之间。 因此，当向数据存储装置提供电流以移动磁畴壁时，可以减少或防止磁层之间的连接中的电流泄漏，从而节省功率。

公开(公告)号：US20130175646A1

公开(公告)日：2013-07-11

申请号：US13549901

申请日：2012-07-16

Applicant: Kwang-seok Kim ,  Sung-chul Lee

Inventor： Kwang-seok Kim ,  Sung-chul Lee

IPC: H01L29/82 ,  G11B5/66 ,  H01F41/14 ,  G11B5/65

CPC classification number: H01L43/02 ,  B82Y40/00 ,  G11C11/161 ,  G11C11/1675 ,  H01F10/30 ,  H01F10/3254 ,  H01F10/3286 ,  H01F41/302 ,  H01L27/228 ,  H01L43/08 ,  H01L43/12

Abstract: Magnetic structures, methods of forming the same, and memory devices including a magnetic structure, include a magnetic layer, and a stress-inducing layer on a first surface of the magnetic layer, a non-magnetic layer on a second surface of the magnetic layer. The stress-inducing layer is configured to induce a compressive stress in the magnetic layer. The magnetic layer has a lattice structure compressively strained due to the stress-inducing layer.

公开(公告)号：US08427247B2

公开(公告)日：2013-04-23

申请号：US12801710

申请日：2010-06-22

Applicant: Sung-chul Lee ,  Sun-ae Seo ,  Young-jin Cho ,  Ung-hwan Pi ,  Kwang-seok Kim ,  Ji-young Bae

Inventor： Sung-chul Lee ,  Sun-ae Seo ,  Young-jin Cho ,  Ung-hwan Pi ,  Kwang-seok Kim ,  Ji-young Bae

IPC: H03B5/18

CPC classification number: H03B15/006

Abstract: An oscillator includes: a plurality of free layers and a non-magnetic layer disposed between the plurality of free layers. Each of the plurality of free layers has perpendicular magnetic anisotropy or in-plane magnetic anisotropy. Magnetization directions of the free layers are periodically switched such that a signal within a given frequency band oscillates.

Abstract translation: 振荡器包括：多个自由层和设置在多个自由层之间的非磁性层。 多个自由层中的每一个具有垂直的磁各向异性或面内磁各向异性。 定期切换自由层的磁化方向，使给定频带内的信号振荡。

公开(公告)号：US08406029B2

公开(公告)日：2013-03-26

申请号：US12658859

申请日：2010-02-16

Applicant: Ho-jung Kim ,  Chul-woo Park ,  Sang-beom Kang ,  Jong-wan Kim ,  Hyun-ho Choi ,  Young-pil Kim ,  Sung-chul Lee

Inventor： Ho-jung Kim ,  Chul-woo Park ,  Sang-beom Kang ,  Jong-wan Kim ,  Hyun-ho Choi ,  Young-pil Kim ,  Sung-chul Lee

IPC: G11C19/00

CPC classification number: G11C19/0808 ,  G11C11/14 ,  G11C19/0841

Abstract: In a memory device and in a method for controlling a memory device, the memory device comprises a magnetic structure that stores information in a plurality of domains of the magnetic structure. A read unit reads information from at least one of the plurality of domains of the magnetic structure by applying a read current to the magnetic structure. A position detector unit compares the information read by a read current from the read unit from multiple domains of the plurality of domains of the magnetic structure to identify the presence of an expected information pattern at select domains of the plurality of domains.

Abstract translation: 在存储器装置和用于控制存储器件的方法中，存储器件包括将结构存储在磁性结构的多个域中的磁性结构。 读取单元通过向磁性结构施加读取电流来从磁性结构的多个域中的至少一个域读取信息。 位置检测器单元将来自读取单元的读取电流读取的信息与磁性结构的多个域的多个域进行比较，以识别多个域的选定域处的预期信息模式的存在。

公开(公告)号：US08325436B2

公开(公告)日：2012-12-04

申请号：US12155187

申请日：2008-05-30

Applicant: Chang-won Lee ,  Sun-ae Seo ,  Young-Jin Cho ,  Sung-chul Lee

Inventor： Chang-won Lee ,  Sun-ae Seo ,  Young-Jin Cho ,  Sung-chul Lee

IPC: G11B5/02

CPC classification number: G11C19/0808 ,  G11C11/161 ,  G11C11/1673 ,  G11C11/1675

Abstract: Information storage devices using magnetic domain wall movement, methods of operating the same, and methods of manufacturing the same are provided. An information storage device includes a first magnetic layer, a heating unit and a magnetic field applying unit. The heating unit heats a first region of the first magnetic layer. The magnetic field applying unit applies a magnetic field to the first region to form a magnetic domain. A wall of the magnetic domain is moved by a current applied to the first magnetic layer.

Abstract translation: 提供使用磁畴壁移动的信息存储装置，其操作方法及其制造方法。 信息存储装置包括第一磁性层，加热单元和磁场施加单元。 加热单元加热第一磁性层的第一区域。 磁场施加单元向第一区域施加磁场以形成磁畴。 通过施加到第一磁性层的电流使磁畴的壁移动。

公开(公告)号：US20120257484A1

公开(公告)日：2012-10-11

申请号：US13297713

申请日：2011-11-16

Applicant: Sung-chul Lee ,  Seung-hoon Han ,  In-kyeong Yoo

Inventor： Sung-chul Lee ,  Seung-hoon Han ,  In-kyeong Yoo

IPC: G11B13/08 ,  G02B6/00

CPC classification number: G11C13/06 ,  G02B5/008 ,  G02F2203/10

Abstract: An optical element and an information storage device including the same. The optical element may include an optical waveguide structure for transforming circularly polarized light into plasmon and transmitting the plasmon. The optical waveguide structure may emit a circularly polarized plasmonic field. The optical element may be used in an information storage device. For example, the information storage device may include a recording medium and a recording element for recording information on the recording medium, and the recording element may include the optical element. The information may be recorded on the recording medium by using the circularly polarized plasmonic field generated by the optical element.

Abstract translation: 光学元件和包括该元件的信息存储装置。 光学元件可以包括用于将圆偏振光转换成等离子体并传输等离子体的光波导结构。 光波导结构可以发射圆偏振等离子体场。 光学元件可以用在信息存储装置中。 例如，信息存储装置可以包括用于在记录介质上记录信息的记录介质和记录元件，并且记录元件可以包括光学元件。 信息可以通过使用由光学元件产生的圆偏振等离子体场来记录在记录介质上。

公开(公告)号：US08254164B2

公开(公告)日：2012-08-28

申请号：US12289484

申请日：2008-10-29

Applicant: Sung-chul Lee ,  Kwang-seok Kim ,  Ung-hwan Pi ,  Ji-young Bae ,  Sun-ae Seo

Inventor： Sung-chul Lee ,  Kwang-seok Kim ,  Ung-hwan Pi ,  Ji-young Bae ,  Sun-ae Seo

IPC: G11C11/14 ,  H01L43/02

CPC classification number: G11C19/0841 ,  G11C11/161 ,  G11C11/1659 ,  G11C11/1673 ,  G11C11/1675 ,  G11C19/0808

Abstract: Provided may be a semiconductor device using magnetic domain wall movement. The semiconductor device may include a magnetic track having a plurality of magnetic domains and a thermal conductive insulating layer configured to contact the magnetic track. The thermal conductive insulating layer may prevent or reduce the magnetic track from being heated due to a current supplied to the magnetic track.

Abstract translation: 提供可以是使用磁畴壁运动的半导体器件。 半导体器件可以包括具有多个磁畴的磁道和被配置为接触磁道的导热绝缘层。 导热绝缘层可以防止或减少由于提供给磁道的电流而导致的磁道被加热。

公开(公告)号：US20120126904A1

公开(公告)日：2012-05-24

申请号：US13208061

申请日：2011-08-11

Applicant: Sung-chul Lee ,  Ung-hwan Pi ,  Kee-won Kim ,  Kwang-seok Kim

Inventor： Sung-chul Lee ,  Ung-hwan Pi ,  Kee-won Kim ,  Kwang-seok Kim

IPC: H03K3/03 ,  B32B38/08 ,  H03B1/00 ,  B05D5/12

CPC classification number: H03B15/006 ,  H01L27/22

Abstract: Oscillators and methods of manufacturing and operating an oscillator are provided, the oscillators include a base free layer having a variable magnetization direction, and at least one oscillation unit on the base free layer. The oscillation unit may include a free layer element contacting the base free layer and having a width less than a width of the base free layer, a pinned layer element separated from the free layer element, and a separation layer element between the free layer element and the pinned layer element. A plurality of oscillation units may be arranged on the base free layer.

Abstract translation: 提供振荡器和制造和操作振荡器的方法，所述振荡器包括具有可变磁化方向的基底自由层和在所述基底自由层上的至少一个振荡单元。 振荡单元可以包括与基底自由层接触并具有小于基底自由层的宽度的自由层元件，与自由层元件分离的钉扎层元件，以及在自由层元件和 固定层元素。 多个振荡单元可以布置在基底自由层上。

公开(公告)号：US08164852B2

公开(公告)日：2012-04-24

申请号：US12142903

申请日：2008-06-20

Applicant: Hoo-san Lee ,  Hoon-sang Oh ,  Sung-chul Lee

Inventor： Hoo-san Lee ,  Hoon-sang Oh ,  Sung-chul Lee

IPC: G11B5/11 ,  G11B5/147

CPC classification number: G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315

Abstract: A magnetic head and a recording apparatus employing the same are provided. The magnetic head includes a recording member, a field inducing member inducing a magnetic field to the recording member, a shield member having the same direction of magnetization as the recording member in a recording operation, and a return path member forming a magnetic path with the recording member.

Abstract translation: 提供一种磁头和采用该磁头的记录装置。 磁头包括记录部件，引起磁记录部件的磁场的场诱导部件，在记录动作中具有与记录部件相同的磁化方向的屏蔽部件，以及与该记录部件形成磁路的返回路径部件 录音成员

公开(公告)号：US08130530B2

公开(公告)日：2012-03-06

申请号：US12591774

申请日：2009-12-01

Applicant: Ung-hwan Pi ,  Young-soo Park ,  Sun-ae Seo ,  Young-jin Cho ,  Sung-chul Lee ,  Ji-young Bae

Inventor： Ung-hwan Pi ,  Young-soo Park ,  Sun-ae Seo ,  Young-jin Cho ,  Sung-chul Lee ,  Ji-young Bae

IPC: G11C19/00

CPC classification number: G11C19/0841 ,  G11C11/161 ,  G11C11/1673 ,  G11C11/1675

Abstract: Provided are information storage devices using movement of magnetic domain walls and methods of operating information storage devices. An information storage device includes a magnetic track and an operating unit. The magnetic track includes a plurality of magnetic domains separated by magnetic domain walls. The size of the operating unit is sufficient to cover at least two adjacent magnetic domains. And, the operating unit may be configured to write/read information to/from a single magnetic domain as well as a plurality of magnetic domains of the magnetic track.

Abstract translation: 提供了使用磁畴壁移动的信息存储装置和操作信息存储装置的方法。 信息存储装置包括磁道和操作单元。 磁道包括由磁畴壁分开的多个磁畴。 操作单元的尺寸足以覆盖至少两个相邻的磁畴。 并且，操作单元可以被配置为向/从单个磁畴以及磁道的多个磁畴写入/读取信息。