Patents by Inventor In O. Kim

In O. Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System for coloring a partially colored design in an alternating phase shift mask
    Patent number: 7687207
    Abstract: A method of designing an alternating phase shifting mask for projecting an image of an integrated circuit design. Phase units are binary colorable within each unit of the hierarchical circuit design, e.g., cell, an array, a net, or array of nets and/or cells, the phase shapes. The assignment of phases or colors within a hierarchical unit will be correctly binary colored to satisfy the lithographic, manufacturability and other design rules, referred to collectively as coloring rules. During assembly with other units, the coloring of phases in a hierarchical unit may change (e.g., be reversed or flipped), but the correct binary colorability of a hierarchical unit is preserved, which simplifies assembly of the integrated circuit layout.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: March 30, 2010
    Assignee: International Business Machines Corporation
    Inventors: Ioana Graur, Young O. Kim, Mark A. Lavin, Lars W. Liebmann
  • MEMS MIRROR, MIRROR SCANNER, OPTICAL SCANNING UNIT AND IMAGE FORMING APPARATUS INCLUDING THE OPTICAL SCANNING UNIT
    Publication number: 20100046054
    Abstract: Disclosed are several embodiments of a micro-electro-mechanical systems (MEMS) mirror and a mirror scanner employing the same. An optical scanning unit employing such mirror scanner and an image forming apparatus including the optical scanning unit are also disclosed. The MEMS mirror may include a movable unit, which may in turn include a mirror portion and a magnet frame portion. The mirror portion may have mirror surfaces on the face surface(s) thereof. The magnet frame portion may include an opening into which a magnet is received. The MEMS mirror may also include a first fixing end and a second fixing end, to which the moving unit may be elastically supported by one or more elastic members that allows oscillating or pivoting movement of the moving unit.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 25, 2010
    Applicant: SAMSUNG ELECTRONICS CO.,
    Inventors: Hee-Moon JEONG, Jin-Ho LEE, Jun-O KIM, Jong-Chul CHOI
  • Sense amplifier, semiconductor memory device including the same, and data sensing method
    Patent number: 7652942
    Abstract: A sense amplifier includes a reference signal providing unit and an internal sense amplification unit. The reference signal providing unit provides a reference bit line signal in response to a reference control signal. The internal sense amplification unit receives the reference bit line signal and data signals that correspond to the data. The received signals are provided through bit lines connected to the memory cell array. The internal sense amplification unit senses the received reference bit line signal and the data signals and amplifies the sensed signals. The sense amplifier senses data stored in memory cells connected to dummy bit lines of the outmost memory cell array of a semiconductor memory device such that the memory cells that are not used can be used. Accordingly, the design area and cost of the semiconductor memory device can be reduced.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: January 26, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myeong-o Kim, Yun-sang Lee
  • Semiconductor memory device
    Patent number: 7643364
    Abstract: A semiconductor memory device including a bit line sense amplifier for amplifying a voltage corresponding to a charge stored in a capacitor of a memory cell and outputting an amplified voltage and an I/O sense amplifier for receiving the output of the bit line sense amplifier, amplifying a voltage level of the output and outputting an amplified voltage level is disclosed.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: January 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Cheol Lee, Myeong-O Kim
  • Heat exchanger
    Publication number: 20090294113
    Abstract: Disclosed is a heat exchanger. The heat exchanger includes a plurality of plates superimposed on one another, and a plurality of heat transfer fins formed on the plurality of plates, and shaped into an airfoil, wherein a channel of a fluid between the superimposed plates is formed to perform a heat exchange.
    Type: Application
    Filed: April 17, 2009
    Publication date: December 3, 2009
    Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KOREA HYDRO & NUCLEAR POWER CO., LTD.
    Inventors: Jae-Eun Cha, Seong-O Kim, Dong-Eok Kim, Moo-Hwan Kim
  • Sense amplifier circuit of semiconductor memory device and method of operating the same
    Patent number: 7570529
    Abstract: A sense amplifier circuit of a semiconductor memory device and a method of operating the same, in which the sense amplifier circuit includes a bit line sense amplifier connected with a bit line to sense and amplify a signal of the bit line, and a calibration circuit calibrating a voltage level of the bit line based on a logic threshold value of the bit line sense amplifier. The bit line sense amplifier senses and amplifies the signal of the bit line after the voltage level of the bit line is calibrated. The bit line sense amplifier may include a 2-stage cascade latch, which includes a first inverter having an input terminal connected with the bit line; and a second inverter which has an input terminal connected with an output terminal of the first inverter and an output terminal connected with the bit line and is enabled/disabled in response to a sensing control signal.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: August 4, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myeong-O Kim, Soo-Hwan Kim, Jong-Cheol Lee
  • Multi-band front end module
    Publication number: 20090161294
    Abstract: A multi-band front end module and a method of manufacturing the multi-band front end module. The method may include forming a first circuit pattern on one side of an insulation layer, stacking a dielectric layer over the one side of the insulation layer, and forming a second circuit pattern on the dielectric layer in correspondence with the first circuit pattern such that at least one of a capacitor and an inductor is implemented. An embodiment of the invention allows the positioning of various passive elements while maintaining a compact size for the multi-band front end module.
    Type: Application
    Filed: June 23, 2008
    Publication date: June 25, 2009
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyung-O Kim, Tae-Eui Kim
  • AC, RF or pulse excited microdischarge device and array
    Publication number: 20090128031
    Abstract: An AC, rf, or pulse-excited microdischarge device and array are provide by the invention. A preferred array includes a substrate. A plurality of microdischarge cavities that contain discharge medium are in the substrate. A transparent layer seals the discharge medium in the microdischarge cavites. Electrodes stimulate the discharge medium. The microdischarge cavities are physically isolated from the electrodes by dielectric and arranged relative to the electrodes such that ac, rf, or pulsed excitation applied to the electrodes stimulates plasma excitation of the discharge medium. The microdischarge cavities are sized to produce plasma within the microdischarge cavities.
    Type: Application
    Filed: September 4, 2007
    Publication date: May 21, 2009
    Inventors: J. Gary Eden, Ju Gao, Sung-o Kim
  • Decay heat removal system for liquid metal reactor
    Patent number: 7526057
    Abstract: A decay heat removal system for a liquid metal reactor in which a decay heat exchanger (DHX) is installed concentrically with an intermediate heat exchanger (IHX) in the same cylinder which separates the DHX and IHX from the reactor pool fluid, and serves to remove the reactor core decay heat. The cylinder surrounds the IHX and DHX, and has an open top portion protruding out of the level of the fluid in a hot pool, a bottom portion connected to a cold pool and a guide pipe for allowing the passage of the fluid from the hot pool into the IHX. The decay heat removal system can remove decay heat immediately after occurrence of an accident, thereby improving the safety of a nuclear plant.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: April 28, 2009
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Yoon Sub Sim, Seong O. Kim, Won Dae Jeon
  • Passive safety-grade decay-heat removal method and decay-heat removal system for LMR with pool direct heat cooling process
    Patent number: 7522693
    Abstract: A direct pool cooling type passive safety grade decay heat removal method and system for removing core decay heat in a pool type liquid metal reactor when a normal heat removal system breaks down. In the liquid metal reactor comprising a reactor vessel, the interior of which is partitioned into a hot pool above a core and a cold pool around the core so that liquid level difference between the hot pool and the cold pool is maintained by a primary pumping head under normal steady-state conditions, is disposed at least one circular vertical tube in such a manner that the sodium in the circular vertical tube is maintained with the same liquid level as the liquid level of the sodium in the cold pool.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: April 21, 2009
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Jae-Hyuk Eoh, Yoon-Sub Sim, Seong-O Kim, Dohee Hahn
  • Microplasma devices excited by interdigitated electrodes
    Patent number: 7511426
    Abstract: A preferred embodiment microplasma device includes first and second substrates. An electrode array is disposed on the first substrate. Cavities are formed in the second substrate by laser micromachining, etching, or by chemical (wet or dry) etching and the second substrate is overlaid on the electrode array. The inter-electrode spacing and electrode width are set so that each cavity has at least one pair of electrodes underneath it to excite a microplasma discharge in the cavity. A need to precisely register the two substrates is avoided.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: March 31, 2009
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: J. Gary Eden, Sung-O Kim
  • 2-AXIS DRIVING ELECTROMAGNETIC SCANNER
    Publication number: 20090080049
    Abstract: A 2-axis driving electromagnetic scanner, having a structure in which a mirror is separated from a driving unit and directly driven, is provided. The electromagnetic scanner includes: an outer driving unit which is capable of rotating around a first axis; an inner driving unit which is suspended from the outer driving unit so as to rotate around a second axis perpendicular to the first axis; and a stage which is located on an upper surface of the inner driving unit so as to rotate together with the inner driving unit. In the electromagnetic scanner, the stage is connected to the inner driving unit by a link unit protruding from a center of a lower surface of the stage.
    Type: Application
    Filed: March 11, 2008
    Publication date: March 26, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-chul KO, Jun-o Kim, Jin-woo Cho, Hee-moon Jeong, Woo-hyek Choi
  • Vertical comb actuator radio frequency micro-electro-mechanical system switch
    Patent number: 7501911
    Abstract: A vertical comb actuator radio frequency (RF) micro-electro-mechanical system (MEMS) switch. The RF MEMS switch includes a substrate; first and second signal lines spaced at a predetermined interval from each other and deposited on an upper surface of the substrate; an actuator positioned over the first and second signal lines when viewed from the upper surface of the substrate and spaced at a predetermined interval from the first and second signal lines; and a fixing portion positioned over the actuator when viewed from the upper surface of the substrate, wherein the fixing portion permits the actuator to come in contact with the first and second signal lines when a predetermined driving voltage is applied. Thus, it is possible to prevent the actuator from sticking to the substrate. In addition, the RF MEMS switch can be operated with a low voltage and insertion loss and power loss can be reduced.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: March 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-tack Hong, Seok-chul Yun, Seok-mo Chang, Sang-wook Kwon, Che-heung Kim, Jong-seok Kim, Hee-moon Jeong, Sang-hun Lee, Jun-o Kim, In-sang Song
  • METHOD OF PRECHARGING LOCAL INPUT/OUTPUT LINE AND SEMICONDUCTOR MEMORY DEVICE USING THE METHOD
    Publication number: 20090040853
    Abstract: A method and semiconductor memory device for precharging a local input/output line. The semiconductor memory device, which may have an open bit line structure, transmits data through local input/output lines that are coupled to bit lines of first to n-th memory cell array blocks (n being a natural number). The semiconductor memory device may include a precharge unit configured to generate a plurality of precharge signals and a controller configured to control precharging of the at least one local input/output line responsive to block information corresponding to activation of at least one of the memory cell array blocks and responsive to at least one of the precharge signals.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myeong-O KIM, Byung-Chul KIM, Yong-Gyu CHU
  • Speckle reduction laser and laser display apparatus having the same
    Patent number: 7489714
    Abstract: A speckle reduction laser and a laser display apparatus having the speckle reduction laser are provided. The speckle reduction laser includes a semiconductor unit that comprises an active layer and emits laser light through a first side surface thereof by resonating light generated from the active layer, and a vibration mirror unit disposed adjacent to a second side surface of the semiconductor unit. The laser further includes a mirror, and the resonance of the laser light is generated between the first side surface of the semiconductor unit and the mirror, and a resonance mode of the laser light is changed according to the vibration of the mirror.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: February 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-hwa Park, Kyoung-ho Ha, Jun-o Kim, Yong-kweun Mun
  • METHOD OF FABRICATING IMAGE DEVICE HAVING CAPACITOR AND IMAGE DEVICE FABRICATED THEREBY
    Publication number: 20080305572
    Abstract: There are provided a method of fabricating an image device having a capacitor and an image device fabricated thereby. The method comprises preparing a substrate having a pixel region and a peripheral circuit region. A lower electrode containing silicon is formed on the substrate of the peripheral circuit region. A capacitor dielectric layer is formed by sequentially stacking a first dielectric layer and a second dielectric layer on the lower electrode, and the first dielectric layer and the second dielectric layer have a different dielectric constant from each other. In this case, one of the first and second dielectric layers is a dielectric layer grown from a material layer formed thereunder and has a lower dielectric constant than that of the other. An upper electrode is formed on the capacitor dielectric layer.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 11, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Sub YOU, Dae-Han YOO, Yong-Woo HYUNG, Jae-Jong HAN, Bi-O KIM, Gil-Hwan SON
  • MEMS switch and manufacturing method thereof
    Patent number: 7446634
    Abstract: A MEMS switch including a substrate at least one fixed electrode formed on top of the substrate and at least one restoring electrode formed on top of the substrate and formed at a lateral surface of the fixed electrode. At least one signal line is formed on top of the substrate and has a switching contact part. A movable electrode is distantly connected from the top of the substrate at a predetermined space via an elastic connector on the substrate and at least one contact member formed on a bottom surface of the movable electrode or on a bottom surface of the elastic connector for attachment to or detachment from the switching contact part. At least one pivot boss is formed on either the bottom surface of the movable electrode or on the top of the substrate.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: November 4, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-moon Jeong, Sang-wook Kwon, Che-heung Kim, Jong-seok Kim, Jun-o Kim, Young-tack Hong, In-sang Song, Sang-hun Lee
  • System for Coloring a Partially Colored Design in an Alternating Phase Shift Mask
    Publication number: 20080244503
    Abstract: A method of designing an alternating phase shifting mask for projecting an image of an integrated circuit design. Phase units are binary colorable within each unit of the hierarchical circuit design, e.g., cell, an array, a net, or array of nets and/or cells, the phase shapes. The assignment of phases or colors within a hierarchical unit will be correctly binary colored to satisfy the lithographic, manufacturability and other design rules, referred to collectively as coloring rules. During assembly with other units, the coloring of phases in a hierarchical unit may change (e.g., be reversed or flipped), but the correct binary colorability of a hierarchical unit is preserved, which simplifies assembly of the integrated circuit layout.
    Type: Application
    Filed: May 15, 2008
    Publication date: October 2, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ioana Graur, Young O. Kim, Mark A. Lavin, Lars W. Liebmann
  • Decay Heat Removal System for Liquid Metal Reactor
    Publication number: 20080219397
    Abstract: A decay heat removal system for a liquid metal reactor in which a decay heat exchanger (DHX) is installed concentrically with an intermediate heat exchanger (IHX) in the same cylinder which separates the DHX and IHX from the reactor pool fluid, and serves to remove the reactor core decay heat. The cylinder surrounds the IHX and DHX, and has an open top portion protruding out of the level of the fluid in a hot pool, a bottom portion connected to a cold pool and a guide pipe for allowing the passage of the fluid from the hot pool into the IHX. The decay heat removal system can remove decay heat immediately after occurrence of an accident, thereby improving the safety of a nuclear plant.
    Type: Application
    Filed: October 29, 2007
    Publication date: September 11, 2008
    Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KOREA HYDRO & NUCLEAR POWER CO., LTD.
    Inventors: Yoon Sub Sim, Seong O. Kim, Won Dae Jeon
  • RF MEMS switch having asymmetrical spring rigidity
    Patent number: 7420444
    Abstract: An RF MEMS switch having asymmetrical spring rigidity. The RF MEMS switch has supporting members spaced apart in a certain interval on a substrate, a membrane being a motion member suspended by plural spring members extended on both sides of the membrane, and a bottom electrode being a contact surface on an upper surface of the substrate facing a bottom surface of the membrane, wherein the plural spring members placed on opposite sides of the membrane have asymmetrical rigidity, and a portion of the membrane on a side of stronger spring rigidity is first separated from the contact surface when the RF MEMS switch is turned off. The present invention has an advantage of easy separation of the switch from the contact surface, when the switch is turned off, due to the different rigidity of the springs located on the sides of the membrane.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: September 2, 2008
    Assignee: Samsung Electronics CO., Ltd.
    Inventors: Jun-o Kim, Sang-wook Kwon, Che-heung Kim, Jong-seok Kim, Hee-moon Jeong, Young-tack Hong, Sang-hun Lee