Patents by Inventor Jun Gi Choi

Jun Gi Choi 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).

  • Publication number: 20150035374
    Abstract: A wireless power transmission/reception system includes a wireless power transmission circuit and a wireless power reception circuit. The wireless power transmission circuit includes an oscillator, a DC-AC converter that converts a direct current to an alternating current and is turned on/off in response to a control signal, a power transmission coil that transmits AC power, a signal reception coil, and a signal receiver that transfers the control signal to the DC-AC converter. The wireless power reception circuit includes a power reception coil, a rectifier that converts an alternating current to a direct current and is turned on or off in response to the control signal, an control signal generator that generates the control signal, a signal transmission coil, and a signal transmitter that transmits the control signal through the signal transmission coil.
    Type: Application
    Filed: January 3, 2014
    Publication date: February 5, 2015
    Applicants: Soongsil University Foundation of University- Industry Cooperation, SK HYNIX INC
    Inventors: Chang-Kun PARK, Chang-Hyun LEE, Suk-Hyeon YOON, Hyung-Jun CHO, Jun-Gi CHOI, Jin-Ho YOO
  • Patent number: 8748888
    Abstract: A semiconductor integrated circuit includes a multi-chip package having a plurality of semiconductor chips. The semiconductor integrated circuit includes a signal line; and a signal loading compensation section in a semiconductor chip among the plurality of semiconductor chips, configured to apply a designed signal loading to the signal line in response to activation of a test signal. Here, the designed signal loading has a value corresponding to a signal loading component of another semiconductor chip among the plurality of semiconductor chips to the signal line.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: June 10, 2014
    Assignee: SK Hynix Inc.
    Inventors: Jeong Woo Lee, Hyung Dong Lee, Jun Gi Choi, Sang Hoon Shin, Xiang Hua Cui
  • Publication number: 20140063993
    Abstract: A system for repairing a plurality of semiconductor chips each comprising a data storage region including electric fuses connected to the data storage regions of the plurality of semiconductor chips, a defect determination unit configured to read the data of a chip that is actually accessed and the data of an idle chip in the data storage regions, compare the actually accessed and read data with the data of the idle chip, and detect a defect based on a result of the comparison, a storage unit configured to store the defective position of the defect according to a result of the defect determination unit, and a repair unit configured to repair the defect through an E fuse connected to the position of the defect using a reset signal.
    Type: Application
    Filed: December 19, 2012
    Publication date: March 6, 2014
    Applicant: SK HYNIX INC.
    Inventors: Jun Gi CHOI, Choong Man JUNG
  • Patent number: 8581369
    Abstract: A semiconductor wafer includes at least one chip formed on a substrate, and a scribe line region surrounding the chip. The chip includes a device formation region, and a chip boundary region surrounding the device formation region and formed between the device formation region and the scribe line region. The chip boundary region includes a guard ring structure which physically separates the device formation region from the scribe line region. The guard ring structure includes a signal transfer element which transfers an electric signal between the device formation region and the scribe line region.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 12, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jun-Gi Choi, Jong-Chern Lee
  • Patent number: 8563430
    Abstract: A semiconductor integrated circuit includes: a semiconductor chip; a through-chip via passing through a conductive pattern disposed in the semiconductor chip and cutting the conductive pattern; and an insulation pattern disposed on an outer circumference surface of the through-chip via to insulate the conductive pattern from the through-chip via.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: October 22, 2013
    Assignee: SK hynix Inc.
    Inventors: Sang-Jin Byeon, Jun-Gi Choi
  • Patent number: 8477521
    Abstract: A fuse circuit includes a plurality of fuse cells, an amplification unit, and a plurality of registers. The amplification unit is configured to sequentially amplify data stored in the fuse cells. The registers are configured to sequentially store data amplified by the amplification unit.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: July 2, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kwi-Dong Kim, Jun-Gi Choi
  • Patent number: 8421520
    Abstract: A fuse circuit includes an electric fuse coupled to a first voltage source; a low resistance unit coupled to the electric fuse and having a junction which is capable of breaking down; and a switching unit coupled between the low resistance unit and a second voltage source.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 16, 2013
    Assignee: SK Hynix Inc.
    Inventor: Jun Gi Choi
  • Publication number: 20130009285
    Abstract: A semiconductor wafer includes at least one chip formed on a substrate, and a scribe line region surrounding the chip. The chip includes a device formation region, and a chip boundary region surrounding the device formation region and formed between the device formation region and the scribe line region. The chip boundary region includes a guard ring structure which physically separates the device formation region from the scribe line region. The guard ring structure includes a signal transfer element which transfers an electric signal between the device formation region and the scribe line region.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Inventors: Jun-Gi Choi, Jong-Chern Lee
  • Patent number: 8350362
    Abstract: A semiconductor integrated circuit includes: a semiconductor chip; a through-chip via passing through a conductive pattern disposed in the semiconductor chip and cutting the conductive pattern; and an insulation pattern disposed on an outer circumference surface of the through-chip via to insulate the conductive pattern from the through-chip via.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: January 8, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sang-Jin Byeon, Jun-Gi Choi
  • Patent number: 8314476
    Abstract: A semiconductor wafer includes at least one chip formed on a substrate, and a scribe line region surrounding the chip. The chip includes a device formation region, and a chip boundary region surrounding the device formation region and formed between the device formation region and the scribe line region. The chip boundary region includes a guard ring structure which physically separates the device formation region from the scribe line region. The guard ring structure includes a signal transfer element which transfers an electric signal between the device formation region and the scribe line region.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: November 20, 2012
    Assignee: Hynix Semiconductor, Inc.
    Inventors: Jun-Gi Choi, Jong-Chern Lee
  • Patent number: 8300496
    Abstract: A semiconductor memory apparatus includes a clock control unit configured to receive a first clock when an enable signal is activated and generate a second clock which has a cycle closer in length to a target clock cycle than the first clock; a DLL input clock generation unit configured to output one of the first clock and the second clock as a DLL input clock according to a DLL select signal; and an address/command input clock generation unit configured to output one of the first clock and the second clock as an AC input clock according to the enable signal.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: October 30, 2012
    Assignee: SK Hynix Inc.
    Inventors: Tae Sik Yun, Hyung Dong Lee, Jun Gi Choi, Sang Jin Byeon, Sang Hoon Shin
  • Patent number: 8232619
    Abstract: Provided is a semiconductor integrated circuit. The semiconductor integrated circuit comprises: a pair of interconnections; a fuse connecting the pair of interconnections; and one or more heat dissipation patterns connecting the pair of interconnections and are disposed around the fuse.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: July 31, 2012
    Assignee: SK Hynix Inc.
    Inventors: Young Hee Yoon, Jun Gi Choi, Sang Hoon Shin
  • Patent number: 8217434
    Abstract: A semiconductor package capable of being efficiently stacked and a method of manufacturing the same is presented. The semiconductor package includes a semiconductor chip, an insulation layer, and a through-electrode. The semiconductor chip has a first surface and a second surface, a circuit section in the semiconductor chip, an internal circuit pattern electrically connected to the circuit section, and a through-hole that passes through the internal circuit pattern and through the first and second surfaces. The insulation layer is on a through-hole of the semiconductor chip and has an opening which exposes the internal circuit pattern which was exposed by the through-hole. The through-electrode is in the through-hole and electrically coupled to the internal circuit pattern which is exposed through the opening of the insulation layer.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: July 10, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Ho Young Son, Jun Gi Choi, Seung Taek Yang
  • Publication number: 20120157015
    Abstract: A semiconductor device includes an interface pad, and an antenna formed to surround the interface pad. The semiconductor device may further include a buffer configured to receive a first input signal applied to the interface pad, a driver configured to output a first output signal to the interface pad a receiver configured to receive a second input signal transferred to the antenna, and a transmitter configured to output a second output signal to the antenna.
    Type: Application
    Filed: March 15, 2011
    Publication date: June 21, 2012
    Inventors: Jun-Gi CHOI, Jeong-Ho CHO, Hyung-Jun CHO
  • Patent number: 8203387
    Abstract: The present invention discloses a circuit providing a power for a sense amplifier that stabilizes a power voltage supplied to the sense amplifier by compensating a noise generated in the power voltage when the sense amplifier operates with an selectively generated decoupling noise. The circuit providing a power for a sense amplifier includes a sense amplifying circuit sensing and amplifying data loaded on a bit line with a first power. A power supplying unit provides the first power to the sense amplifying circuit. A decoupling unit generates a decoupling noise with a second power and provides the decoupling noise to the first power voltage. The decoupling noise is maintained for a period including a time point of an operation of the sense amplifying circuit and a predetermined time thereafter.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: June 19, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Jun Gi Choi
  • Patent number: 8183898
    Abstract: A voltage supply apparatus includes a power noise sensing unit, a voltage selecting unit, a first power voltage supply unit and a second power voltage supply unit. The power noise sensing unit senses noise from first and second powers and outputs a power noise sensing signal. The voltage selecting unit outputs first and second driving signals in response to a voltage-supply-enable-signal and the power noise sensing signal. The first power voltage supply unit applies a voltage of the first power in response to the first and second driving signals. The second power voltage supply unit applies a voltage of the second power in response to the first and second driving signals.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: May 22, 2012
    Assignee: Hynix Semiconductor
    Inventors: Yoon-Jae Shin, Jun-Gi Choi
  • Publication number: 20120092947
    Abstract: A fuse circuit includes a plurality of fuse cells, an amplification unit, and a plurality of registers. The amplification unit is configured to sequentially amplify data stored in the fuse cells. The registers are configured to sequentially store data amplified by the amplification unit.
    Type: Application
    Filed: December 29, 2010
    Publication date: April 19, 2012
    Inventors: Kwi-Dong KIM, Jun-Gi CHOI
  • Publication number: 20120057413
    Abstract: A semiconductor memory apparatus includes a clock control unit configured to receive a first clock when an enable signal is activated and generate a second clock which has a cycle closer in length to a target clock cycle than the first clock; a DLL input clock generation unit configured to output one of the first clock and the second clock as a DLL input clock according to a DLL select signal; and an address/command input clock generation unit configured to output one of the first clock and the second clock as an AC input clock according to the enable signal.
    Type: Application
    Filed: November 18, 2010
    Publication date: March 8, 2012
    Applicant: Hynix Semiconductor Inc.
    Inventors: Tae Sik YUN, Hyung Dong Lee, Jun Gi Choi, Sang Jin Byeon, Sang Hoon Shin
  • Publication number: 20110291229
    Abstract: A semiconductor integrated circuit includes: a semiconductor chip; a through-chip via passing through a conductive pattern disposed in the semiconductor chip and cutting the conductive pattern; and an insulation pattern disposed on an outer circumference surface of the through-chip via to insulate the conductive pattern from the through-chip via.
    Type: Application
    Filed: July 7, 2010
    Publication date: December 1, 2011
    Inventors: Sang-Jin BYEON, Jun-Gi Choi
  • Publication number: 20110272790
    Abstract: A semiconductor wafer includes at least one chip formed on a substrate, and a scribe line region surrounding the chip. The chip includes a device formation region, and a chip boundary region surrounding the device formation region and formed between the device formation region and the scribe line region. The chip boundary region includes a guard ring structure which physically separates the device formation region from the scribe line region. The guard ring structure includes a signal transfer element which transfers an electric signal between the device formation region and the scribe line region.
    Type: Application
    Filed: July 9, 2010
    Publication date: November 10, 2011
    Inventors: Jun-Gi Choi, Jong-Chern Lee