公开(公告)号：US20130161587A1

公开(公告)日：2013-06-27

申请号：US13475098

申请日：2012-05-18

Applicant: Wenxu Xianyu ,  Chang-youl Moon ,  Jeong-yub Lee ,  Chang-seung Lee

Inventor： Wenxu Xianyu ,  Chang-youl Moon ,  Jeong-yub Lee ,  Chang-seung Lee

IPC: H01L29/16 ,  H01L29/786 ,  H01L21/336

CPC classification number: H01L29/78684 ,  H01L27/1266 ,  H01L29/1606 ,  H01L29/66045 ,  H01L29/66742 ,  H01L29/78603

Abstract: A graphene device may include a channel layer including graphene, a first electrode and second electrode on a first region and second region of the channel layer, respectively, and a capping layer covering the channel layer and the first and second electrodes. A region of the channel layer between the first and second electrodes is exposed by an opening in the capping layer. A gate insulating layer may be on the capping layer to cover the region of the channel layer, and a gate may be on the gate insulating layer.

公开(公告)号：US08045318B2

公开(公告)日：2011-10-25

申请号：US12652948

申请日：2010-01-06

Applicant: Seung-tae Choi ,  Ji-hyuk Lim ,  Woon-bae Kim ,  Eun-seok Park ,  Jeong-yub Lee

Inventor： Seung-tae Choi ,  Ji-hyuk Lim ,  Woon-bae Kim ,  Eun-seok Park ,  Jeong-yub Lee

IPC: H01G5/00

CPC classification number: H01G5/0132

Abstract: A tunable capacitor using an electrowetting phenomenon includes a first electrode; a second electrode which is spaced apart from the first electrode and faces the first electrode; a fluidic channel which is disposed between the first electrode and the second electrode; a first insulating layer which is disposed between the first electrode and the fluidic channel; and a conductive fluid which is disposed in the fluidic channel and moves along the fluidic channel when a direct current (DC) potential difference occurs between the first and second electrodes. Accordingly, it is possible to fabricate the tunable capacitor with the simplified fabrication process, good reliability and durability, and no restriction on the tuning range.

Abstract translation: 使用电润湿现象的可调谐电容器包括第一电极; 第二电极，与第一电极间隔开并面向第一电极; 设置在第一电极和第二电极之间的流体通道; 布置在第一电极和流体通道之间的第一绝缘层; 以及当在第一和第二电极之间发生直流（DC）电位差时，布置在流体通道中并沿着流体通道移动的导电流体。 因此，可以以简化的制造工艺，良好的可靠性和耐久性制造可调电容器，并且对调谐范围没有限制。

公开(公告)号：US07095299B2

公开(公告)日：2006-08-22

申请号：US10854332

申请日：2004-05-27

Applicant: Jeong Yub Lee ,  Jang Ho Park

Inventor： Jeong Yub Lee ,  Jang Ho Park

IPC: H03H3/08 ,  H03H9/64

CPC classification number: H03H9/14541 ,  H03H3/08 ,  H03H9/02929 ,  H03H9/02937 ,  Y10T29/42

Abstract: In a fabrication method of a SAW device, a first conductive layer, an etch-stop layer made of conductive material and a second conductive layer are formed one atop another in order on a piezoelectric ceramic substrate. A mask is provided on a first portion of the second conductive layer corresponding to a first SAW filter. A second portion of the second conductive layer corresponding to a second SAW filter is selectively removed using the mask. The mask is removed and a photoresist pattern used for forming electrodes of the SAW filters is provided on the first portion of the second conductive layer corresponding to the first SAW filter region and on a first portion of the etch-stop layer corresponding to the second SAW filter region. The first and second conductive layers and the etch-stop layer are selectively removed using the photoresist pattern, and the photoresist pattern is then removed.

Abstract translation: 在SAW器件的制造方法中，在压电陶瓷衬底上依次形成第一导电层，由导电材料制成的蚀刻停止层和第二导电层。 在与第一SAW滤波器对应的第二导电层的第一部分上设置掩模。 使用掩模选择性地去除与第二SAW滤波器对应的第二导电层的第二部分。 去除掩模，并且在与第一SAW滤波器区域相对应的第二导电层的第一部分上和在对应于第二SAW滤波器区域的蚀刻停止层的第一部分上提供用于形成SAW滤波器的电极的光致抗蚀剂图案 过滤器区域。 使用光致抗蚀剂图案选择性地去除第一和第二导电层和蚀刻停止层，然后除去光致抗蚀剂图案。

公开(公告)号：US08482860B2

公开(公告)日：2013-07-09

申请号：US13161651

申请日：2011-06-16

Applicant: Seung-wan Lee ,  Woon-bae Kim ,  Kyu-dong Jung ,  Jeong-yub Lee

Inventor： Seung-wan Lee ,  Woon-bae Kim ,  Kyu-dong Jung ,  Jeong-yub Lee

IPC: G02B1/06 ,  G02B3/12

CPC classification number: C08L83/04 ,  C08G77/04 ,  G02B3/14 ,  G02B7/028

Abstract: A varifocal lens structure and a method of manufacturing the same, the varifocal lens structure including: a frame having a fluid chamber filled with an optical fluid and formed of polymethylsiloxane (PDMS) containing a predetermined fluid; a transparent cover disposed on a top surface of the frame so as to cover the fluid chamber; a transparent elastic membrane disposed on a bottom surface of the frame so as to form a lower wall of the fluid chamber; and an actuator disposed on the elastic membrane.

Abstract translation: 一种变焦透镜结构及其制造方法，所述变焦透镜结构包括：具有填充有光学流体并由含有预定流体的聚甲基硅氧烷（PDMS）形成的流体室的框架; 透明盖，其设置在所述框架的上表面上以覆盖所述流体室; 透明弹性膜，其设置在所述框架的底面上，以形成所述流体室的下壁; 以及设置在弹性膜上的致动器。

公开(公告)号：US20100110606A1

公开(公告)日：2010-05-06

申请号：US12652948

申请日：2010-01-06

Applicant: Seung-tae CHOI ,  Ji-hyuk Lim ,  Woon-bae Kim ,  Eun-seok Park ,  Jeong-yub Lee

Inventor： Seung-tae CHOI ,  Ji-hyuk Lim ,  Woon-bae Kim ,  Eun-seok Park ,  Jeong-yub Lee

IPC: H01G5/01

CPC classification number: H01G5/0132

Abstract: A tunable capacitor using an electrowetting phenomenon includes a first electrode; a second electrode which is spaced apart from the first electrode and faces the first electrode; a fluidic channel which is disposed between the first electrode and the second electrode; a first insulating layer which is disposed between the first electrode and the fluidic channel; and a conductive fluid which is disposed in the fluidic channel and moves along the fluidic channel when a direct current (DC) potential difference occurs between the first and second electrodes. Accordingly, it is possible to fabricate the tunable capacitor with the simplified fabrication process, good reliability and durability, and no restriction on the tuning range.

Abstract translation: 使用电润湿现象的可调谐电容器包括第一电极; 第二电极，与第一电极间隔开并面向第一电极; 设置在第一电极和第二电极之间的流体通道; 布置在第一电极和流体通道之间的第一绝缘层; 以及当在第一和第二电极之间发生直流（DC）电位差时，布置在流体通道中并沿着流体通道移动的导电流体。 因此，可以以简化的制造工艺，良好的可靠性和耐久性制造可调电容器，并且对调谐范围没有限制。

公开(公告)号：US20100046004A1

公开(公告)日：2010-02-25

申请号：US12487688

申请日：2009-06-19

Applicant: Jeong-yub Lee ,  Seung-wan Lee ,  Woon-bae Kim ,  Seung-tae Choi

Inventor： Jeong-yub Lee ,  Seung-wan Lee ,  Woon-bae Kim ,  Seung-tae Choi

IPC: G01B11/24 ,  G02B3/12

CPC classification number: G01B11/25 ,  G02B3/14 ,  G02B26/004

Abstract: A pattern projecting apparatus usable with a three-dimensional imaging apparatus includes a light generator which emits a light beam, and a pattern adjusting unit disposed in front of the light generator. The pattern adjusting unit forms a projection pattern on an object, and adjusts a focus of the light beam emitted from the light generator.

Abstract translation: 可用于三维成像设备的图案投影设备包括发射光束的光发生器和布置在光发生器前面的图案调整单元。 图案调整单元在物体上形成投影图案，并且调节从光发生器发射的光束的焦点。

公开(公告)号：US07619837B2

公开(公告)日：2009-11-17

申请号：US12036316

申请日：2008-02-25

Applicant: Seung-tae Choi ,  Tae-sang Park ,  Jeong-yub Lee ,  Jong-oh Kwon ,  Che-heung Kim ,  Seung-wan Lee ,  Woon-bae Kim

Inventor： Seung-tae Choi ,  Tae-sang Park ,  Jeong-yub Lee ,  Jong-oh Kwon ,  Che-heung Kim ,  Seung-wan Lee ,  Woon-bae Kim

IPC: G02B7/02

CPC classification number: G02B7/08

Abstract: A varifocal optical device is provided. The varifocal optical device includes an optical lens, an actuator unit connected with the optical lens and having two areas that are bending-deformed in opposite directions to each other when a voltage is applied thereto, and a supporting unit to support the actuator unit, so that a focus of the optical lens is varied by the bending deformation when the voltage is applied to the actuator unit. Thereby, a driving displacement of the varifocal optical lens can be maximized.

Abstract translation: 提供变焦光学装置。 变焦光学装置包括光学透镜，与光学透镜连接的致动器单元，并且当施加电压时具有彼此相反方向弯曲变形的两个区域，以及支撑单元以支撑致动器单元，因此 当将电压施加到致动器单元时，光学透镜的焦点因弯曲变形而变化。 从而可以使变焦光学透镜的驱动位移最大化。

公开(公告)号：US20090147371A1

公开(公告)日：2009-06-11

申请号：US12053110

申请日：2008-03-21

Applicant: Jeong-yub LEE ,  Seung-wan LEE ,  Seung-tae CHOI ,  Woon-bae KIM ,  Jae-ho YOU ,  Che-heung KIM

Inventor： Jeong-yub LEE ,  Seung-wan LEE ,  Seung-tae CHOI ,  Woon-bae KIM ,  Jae-ho YOU ,  Che-heung KIM

IPC: G02B3/12 ,  B05D1/00 ,  B05D3/00

CPC classification number: G02B3/14

Abstract: A liquid optical lens which changes a focus due to a change in a shape of a translucent elastic membrane according to a change in a fluid pressure of a lens chamber and a manufacturing method thereof are provided. The liquid optical lens forms a dampproof coating membrane on the translucent elastic membrane to prevent a fluid from permeating through the translucent elastic membrane and a swelling phenomenon of the translucent elastic membrane.

Abstract translation: 提供一种液晶光学透镜，其根据透镜室的流体压力的变化而改变由于透光性弹性膜的形状的变化而产生的焦点及其制造方法。 液体光学透镜在半透明弹性膜上形成防潮涂层膜，以防止流体渗透半透明弹性膜和半透明弹性膜的膨胀现象。

公开(公告)号：US09405045B2

公开(公告)日：2016-08-02

申请号：US13210751

申请日：2011-08-16

Applicant: Jeong-Yub Lee ,  Kyu-Dong Jung ,  Seung-Wan Lee ,  Woon-Bae Kim

Inventor： Jeong-Yub Lee ,  Kyu-Dong Jung ,  Seung-Wan Lee ,  Woon-Bae Kim

IPC: G02B1/06 ,  G02B3/14 ,  G02B7/02

CPC classification number: G02B3/14 ,  G02B7/028

Abstract: An optical apparatus such as a varifocal fluidic lens is provided. Optical apparatus includes a spacer frame, optical fluid, an elastic membrane, an actuator, an actuator frame, and a thermally deformable frame. Spacer frame defines an internal space including a lens portion and a driving portion that connect to each other, and the driving portion is disposed to surround the lens portion disposed in the center area of the internal space. Optical fluid is filled in the internal space defined by the spacer frame. The elastic membrane is attached on a surface of the spacer frame, to cover a side of the internal space, and the thermally deformable plate is attached on the other surface of the spacer frame, to cover the other side of the internal space. The thermally deformable plate deforms to increase or decrease a volume of the internal space according to a change in temperature.

Abstract translation: 提供了诸如变焦透镜的光学装置。 光学装置包括间隔框架，光学流体，弹性膜，致动器，致动器框架和热变形框架。 间隔框架限定了包括彼此连接的透镜部分和驱动部分的内部空间，并且驱动部分设置成围绕设置在内部空间的中心区域中的透镜部分。 光学流体填充在由间隔框架限定的内部空间中。 弹性膜附着在间隔框架的表面上以覆盖内部空间的一侧，并且热变形板附接在间隔框架的另一个表面上，以覆盖内部空间的另一侧。 根据温度变化，热变形板变形以增加或减小内部空间的体积。

公开(公告)号：US08921220B2

公开(公告)日：2014-12-30

申请号：US13599980

申请日：2012-08-30

Applicant: Xianyu Wenxu ,  Jeong-Yub Lee ,  Chang -youl Moon ,  Yong-Young Park ,  Woo Young Yang ,  Jae-Joon Oh ,  In-Jun Hwang

Inventor： Xianyu Wenxu ,  Jeong-Yub Lee ,  Chang -youl Moon ,  Yong-Young Park ,  Woo Young Yang ,  Jae-Joon Oh ,  In-Jun Hwang

IPC: H01L21/28 ,  H01L21/3205

CPC classification number: H01L21/268 ,  H01L21/28575 ,  H01L21/3245 ,  H01L29/2003 ,  H01L29/452 ,  H01L29/517 ,  H01L29/66462

Abstract: A method for forming a selective ohmic contact for a Group III-nitride heterojunction structured device may include forming a conductive layer and a capping layer on an epitaxial substrate including at least one Group III-nitride heterojunction layer and having a defined ohmic contact region, the capping layer being formed on the conductive layer or between the conductive layer and the Group III-nitride heterojunction layer in one of the ohmic contact region and non-ohmic contact region, and applying at least one of a laser annealing process and an induction annealing process on the substrate at a temperature of less than or equal to about 750° C. to complete the selective ohmic contact in the ohmic contact region.

Abstract translation: 用于形成用于III族氮化物异质结结构器件的选择性欧姆接触的方法可包括在包括至少一个III族氮化物异质结层并且具有限定的欧姆接触区域的外延衬底上形成导电层和覆盖层， 覆盖层形成在导电层之间或在欧姆接触区域和非欧姆接触区域之一的导电层和III族氮化物异质结层之间，并且施加激光退火工艺和感应退火工艺中的至少一个 在小于或等于约750℃的温度下在衬底上完成欧姆接触区域中的选择性欧姆接触。