Patents by Inventor Jae-Hyuk Im

Jae-Hyuk Im 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: 20120007573
    Abstract: A power-up signal generation circuit includes a power-up signal generator configured to enable a power-up signal when a level of an external power voltage is higher than a target level, and a target level controller configured to change the target level in response to a current consumption signal indicating a current consumption of a system including the power-up signal generation circuit.
    Type: Application
    Filed: September 14, 2010
    Publication date: January 12, 2012
    Inventors: Sang-Mook OH, Jae-Hyuk Im
  • Publication number: 20110291639
    Abstract: A semiconductor integrated circuit includes an internal reference voltage generation unit configured to generate an internal reference voltage; a high voltage generation unit configured to pump an external driving voltage based on the internal reference voltage applied from the internal reference voltage generation unit, and generate a high voltage having a specified level; and a reference voltage transfer unit configured to generate a test reference voltage from a reference voltage in a package test mode to correspond to a change in a driving operation of the external driving voltage applied from outside, and monitor and force the internal reference voltage.
    Type: Application
    Filed: November 16, 2010
    Publication date: December 1, 2011
    Applicant: Hynix Semiconductor Inc.
    Inventors: Kang Seol LEE, Jae Hyuk Im
  • Patent number: 7978003
    Abstract: There is an internal voltage generating circuit for providing a stable high voltage by making a response time short. The internal voltage generating circuit includes a charge pump unit for generate a high voltage being higher than an external voltage in response to pumping control signals and a supply driving control signal; a pumping control signal generating unit for outputting the pumping control signals to the charge pump unit based on a driving signal; and a supply driving control unit for receiving the driving signal to generate the supply driving control signal to the charge pump unit.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 12, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kang-Seol Lee, Jae-Hyuk Im
  • Patent number: 7948303
    Abstract: An internal voltage generating circuit is capable of controlling an amount of charge pumping according to an external power supply voltage. The internal voltage generating circuit includes a periodic signal generating unit configured to control generation of periodic signals according to a level of an external power supply voltage, and a pumping unit driven according to the periodic signals generated by the periodic signal generating unit.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: May 24, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Jae-Hyuk Im
  • Patent number: 7936207
    Abstract: An internal voltage generating circuit includes an internal voltage generating unit configured to generate an internal voltage that corresponds to a target voltage level by driving an internal voltage terminal with an external power supply voltage, and current sinking unit configured to adjust leakage current introduced to the internal voltage terminal in response to the external power supply voltage.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: May 3, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Jae-Hyuk Im
  • Patent number: 7924646
    Abstract: A fuse monitoring circuit for a semiconductor memory device includes a fuse repair unit including a plurality of fuses each programmed with at least one repair address, configured to receive a fuse reset signal and to output a plurality of fuse state signals each corresponding to a connection state of one of the fuses, a fuse monitoring unit configured to receive a monitoring enable signal and to output a plurality of fuse state monitoring signals each corresponding to a corresponding one of the fuse state signals, each of the fuse state signals corresponding to one of a plurality of addresses, and an output unit configured to receive an output control signal and to output the fuse state monitoring signals to an output pad.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: April 12, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Hyuk Im, Jae-Il Kim
  • Patent number: 7915745
    Abstract: A multi-port memory device includes a first package ball out region in which a plurality of balls for a serial I/O interface part are arranged; and a second package ball out region in which a plurality of balls for a dynamic random access memory (DRAM) part are arranged.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: March 29, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Hyuk Im, Chang-Ho Do
  • Patent number: 7903479
    Abstract: A semiconductor memory device includes a charge pumping circuit, a level sensor, an oscillator, and a pumping control signal generator. The charge pumping circuit performs a negative-pumping operation to an external power in order to generate an internal voltage having a level lower than the external power. The level sensor senses a level of the internal voltage corresponding to a level of an adjusted reference voltage during a refresh mode. The oscillator generates a period signal in response to a sensing signal of the level sensor. The pumping control signal generator controls the operation of the charge pumping circuit in response to the period signal.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 8, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Jae-Hyuk Im
  • Patent number: 7898891
    Abstract: A semiconductor memory device includes a charge pumping circuit, a level sensor, an oscillator, and a pumping control signal generator. The charge pumping circuit performs a negative-pumping operation to an external power in order to generate an internal voltage having a level lower than the external power. The level sensor senses a level of the internal voltage corresponding to a level of an adjusted reference voltage during a refresh mode. The oscillator generates a period signal in response to a sensing signal of the level sensor. The pumping control signal generator controls the operation of the charge pumping circuit in response to the period signal.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 1, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Jae-Hyuk Im
  • Publication number: 20100308901
    Abstract: An internal voltage generating circuit is capable of controlling an amount of charge pumping according to an external power supply voltage. The internal voltage generating circuit includes a periodic signal generating unit configured to control generation of periodic signals according to a level of an external power supply voltage, and a pumping unit driven according to the periodic signals generated by the periodic signal generating unit.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 9, 2010
    Inventor: Jae-Hyuk Im
  • Patent number: 7839200
    Abstract: Semiconductor device and data outputting method of the same includes an on die thermal sensor (ODTS) configured to output temperature information by detecting an internal temperature of the semiconductor device and an output driver configured to control a slew rate depending on the temperature information and output data.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: November 23, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Hyuk Im, Kee-Teok Park
  • Patent number: 7826296
    Abstract: A fuse monitoring circuit for a semiconductor device includes a repair fuse unit including a number of fuses to which a repair address is programmed, and configured to output fuse state signals corresponding to the connection states of the respective fuses in response to a fuse initialization signal. A serial fuse monitoring unit is configured to output a fuse state monitoring signal corresponding to each fuse state signal selected by an applied address in response to a serial monitoring test mode signal. Also, a parallel fuse monitoring unit is configured to output a repair monitoring signal by comparing an applied address and the repair address in response to a parallel monitoring test mode signal. An output unit is configured to output the fuse state monitoring signal and the repair monitoring signal to an output pad in response to an output control signal.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: November 2, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Il Kim, Jae-Hyuk Im
  • Patent number: 7787322
    Abstract: The multi-port memory device includes a mode input/output controller for receiving a flag signal and generating a self-refresh entry signal and a self-refresh escape signal, a refresh interval signal generator for providing a self-refresh interval signal notifying a self-refresh interval in response to the self-refresh entry signal and the self-refresh escape signal, a refresh cycle signal generator for periodically generating a cycle-pulse signal during an activation of the self-refresh interval signal, an internal refresh signal generator for producing an internal refresh signal in response to the self-refresh entry signal and the cycle-pulse signal, and an internal address counter for generating an internal address in response to the internal refresh signal.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: August 31, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Hyuk Im, Chang-Ho Do
  • Patent number: 7772916
    Abstract: An internal voltage generator of a semiconductor device consumes relatively small amount of driving current and generates a stable internal voltage with relatively small voltage level variation. The semiconductor device includes an oscillator configured to generate an oscillation signal in response to an input signal, wherein the oscillation signal oscillates with a first period and oscillates with a second period longer than the first period during a predetermined latter section, and an internal circuit configured to perform a predetermined operation in response to the oscillation signal.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: August 10, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Jae-Hyuk Im
  • Publication number: 20100135057
    Abstract: A multi-port memory device includes a first package ball out region in which a plurality of balls for a serial I/O interface part are arranged; and a second package ball out region in which a plurality of balls for a dynamic random access memory (DRAM) part are arranged.
    Type: Application
    Filed: February 2, 2010
    Publication date: June 3, 2010
    Inventors: Jae-Hyuk IM, Chang-Ho Do
  • Patent number: 7729184
    Abstract: Provided is a memory device that can detect a mismatch in a bit line sense amp, wherein the memory device includes a sense amp drive unit for selectively supplying a pull-up drive voltage or a pull-down drive voltage to a bit line sense amp in response to a sensing test signal provided from outside.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: June 1, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Hyuk Im, Chang-Ho Do
  • Publication number: 20100109762
    Abstract: An internal voltage generating circuit includes an internal voltage generating unit configured to generate an internal voltage that corresponds to a target voltage level by driving an internal voltage terminal with an external power supply voltage, and current sinking unit configured to adjust leakage current introduced to the internal voltage terminal in response to the external power supply voltage.
    Type: Application
    Filed: December 24, 2008
    Publication date: May 6, 2010
    Inventor: Jae-Hyuk IM
  • Patent number: 7687924
    Abstract: A multi-port memory device includes a first package ball out region in which a plurality of balls for a serial I/O interface part are arranged; and a second package ball out region in which a plurality of balls for a dynamic random access memory (DRAM) part are arranged.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 30, 2010
    Assignee: Hynix Semiconductor, Inc.
    Inventors: Jae-Hyuk Im, Chang-Ho Do
  • Publication number: 20100073078
    Abstract: There is an internal voltage generating circuit for providing a stable high voltage by making a response time short. The internal voltage generating circuit includes a charge pump unit for generate a high voltage being higher than an external voltage in response to pumping control signals and a supply driving control signal; a pumping control signal generating unit for outputting the pumping control signals to the charge pump unit based on a driving signal; and a supply driving control unit for receiving the driving signal to generate the supply driving control signal to the charge pump unit.
    Type: Application
    Filed: December 3, 2009
    Publication date: March 25, 2010
    Inventors: Kang-Seol LEE, Jae-Hyuk Im
  • Patent number: 7672184
    Abstract: A semiconductor memory device includes a level feedback circuit and a refresh signal generator. The level feedback circuit outputs a bulk voltage applied to a cell transistor as a feedback signal. The refresh signal generator generates an internal refresh signal for driving a refresh operation at predetermined intervals during a self refresh mode. A period of the internal refresh signal is adjusted according to a voltage level of the feedback signal.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 2, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Hyuk Im, Chang-Ho Do