Patents by Inventor Jong-Man Im

Jong-Man 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).

  • Patent number: 11428718
    Abstract: A semiconductor device includes a period defining block suitable for generating a period defining signal corresponding to a predetermined test time period based on a test mode signal and one or more command signals; and a monitoring block suitable for generating a monitoring signal corresponding to an oscillation signal during the test time period based on the period defining signal.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: August 30, 2022
    Assignee: SK hynix Inc
    Inventors: Yu-Ri Lim, Jong-Man Im
  • Patent number: 11328763
    Abstract: A semiconductor memory device includes a common driver suitable for generating a preliminary driving signal according to a voltage at a first node; and a plurality of individual drivers suitable for providing a core voltage to a sense amplifying circuit of a corresponding one of a plurality of cell mats, according to the preliminary driving signal, wherein each of the individual drivers includes: a level shifting circuit suitable for outputting a main driving signal by shifting a level of the preliminary driving signal when a corresponding mat select signal and a pull-up driving signal are activated; a pull-up driver suitable for driving a pull-up power line with the core voltage according to the main driving signal; and a switch suitable for coupling the first node to the pull-up power line when the corresponding mat select signal and the pull-up driving signal are activated.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 10, 2022
    Assignee: SK hynix Inc.
    Inventor: Jong Man Im
  • Publication number: 20210366533
    Abstract: A semiconductor memory device includes a common driver suitable for generating a preliminary driving signal according to a voltage at a first node; and a plurality of individual drivers suitable for providing a core voltage to a sense amplifying circuit of a corresponding one of a plurality of cell mats, according to the preliminary driving signal, wherein each of the individual drivers includes: a level shifting circuit suitable for outputting a main driving signal by shifting a level of the preliminary driving signal when a corresponding mat select signal and a pull-up driving signal are activated; a pull-up driver suitable for driving a pull-up power line with the core voltage according to the main driving signal; and a switch suitable for coupling the first node to the pull-up power line when the corresponding mat select signal and the pull-up driving signal are activated.
    Type: Application
    Filed: September 30, 2020
    Publication date: November 25, 2021
    Inventor: Jong Man IM
  • Patent number: 10763838
    Abstract: A semiconductor device includes a voltage adjust circuit suitable for generating an adjusting voltage according to a counting signal; an oscillating circuit operable by an oscillating control signal, and suitable for outputting an operational clock signal whose frequency is controlled by the adjusting voltage; a pumping circuit suitable for generating an internal voltage by pumping a source voltage according to the operational clock signal; and a counting circuit suitable for generating the counting signal by counting the operational clock signal according to the oscillating control signal.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: September 1, 2020
    Assignee: SK hynix Inc.
    Inventor: Jong-Man Im
  • Publication number: 20200186138
    Abstract: A semiconductor device includes a voltage adjust circuit suitable for generating an adjusting voltage according to a counting signal; an oscillating circuit operable by an oscillating control signal, and suitable for outputting an operational clock signal whose frequency is controlled by the adjusting voltage; a pumping circuit suitable for generating an internal voltage by pumping a source voltage according to the operational clock signal; and a counting circuit suitable for generating the counting signal by counting the operational clock signal according to the oscillating control signal.
    Type: Application
    Filed: June 13, 2019
    Publication date: June 11, 2020
    Inventor: Jong-Man IM
  • Publication number: 20190317139
    Abstract: A semiconductor device includes a period defining block suitable for generating a period defining signal corresponding to a predetermined test time period based on a test mode signal and one or more command signals; and a monitoring block suitable for generating a monitoring signal corresponding to an oscillation signal during the test time period based on the period defining signal.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Inventors: Yu-Ri LIM, Jong-Man IM
  • Patent number: 10359451
    Abstract: A semiconductor device includes a period defining block suitable for generating a period defining signal corresponding to a predetermined test time period based on a test mode signal and one or more command signals; and a monitoring block suitable for generating a monitoring signal corresponding to an oscillation signal during the test time period based on the period defining signal.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 23, 2019
    Assignee: SK hynix Inc.
    Inventors: Yu-Ri Lim, Jong-Man Im
  • Patent number: 9793009
    Abstract: A repair information storage circuit may include a fuse block, a controller, and a fuse latch array. The fuse block provides a boot-up enable signal and repair information. The controller generates a voltage control signal in response to the boot-up enable signal. The fuse latch array stores repair information provided from the fuse block. The voltage control signal, which is used as a bulk bias of a transistor formed in the fuse latch array, is adjustable.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: October 17, 2017
    Assignee: SK hynix Inc.
    Inventors: Woong Kyu Choi, Jong Man Im, Jun Cheol Park
  • Patent number: 9690317
    Abstract: A semiconductor device includes: an internal voltage generation block suitable for generating an internal voltage based on first and second external voltages whose power-up sections are different from each other; and a control block suitable for fixing the internal voltage to a predetermined voltage level during a control section including a first power-up section of the first external voltage and a second power-up section of the second external voltage.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: June 27, 2017
    Assignee: SK Hynix Inc.
    Inventors: Jong-Man Im, Jun-Cheol Park
  • Publication number: 20170131330
    Abstract: A semiconductor device includes a period defining block suitable for generating a period defining signal corresponding to a predetermined test time period based on a test mode signal and one or more command signals; and a monitoring block suitable for generating a monitoring signal corresponding to an oscillation signal during the test time period based on the period defining signal.
    Type: Application
    Filed: March 30, 2016
    Publication date: May 11, 2017
    Inventors: Yu-Ri LIM, Jong-Man IM
  • Publication number: 20160241141
    Abstract: A voltage generator may include: an internal voltage generation unit suitable for generating an internal voltage by pumping an external voltage in response to a pumping cycle signal; and a capacitance adjusting unit comprising a capacitive element which receives and transmits the pumping cycle signal to the internal voltage generation unit, and is suitable for adjusting a capacitance of the capacitive element based on the external voltage.
    Type: Application
    Filed: June 18, 2015
    Publication date: August 18, 2016
    Inventors: Jong-Man IM, Woong-Kyu CHOI
  • Publication number: 20160202718
    Abstract: A voltage generation circuit includes a plurality of voltage generation units each configured to include an internal voltage with a reference voltage, generate a detection signal based on a comparison result between the internal voltage and the reference voltage, and adjust the level of the internal voltage in response to an oscillation signal, a control unit configured to generate an oscillation control signal in response to the detection signals, an oscillator configured to generate the oscillation signal in response to the oscillation control signal, and a selective output unit configured to selectively supply the oscillation signal to one or more of the plurality of voltage generation units in response to the detection signals.
    Type: Application
    Filed: March 22, 2016
    Publication date: July 14, 2016
    Inventor: Jong Man IM
  • Publication number: 20160196881
    Abstract: A repair information storage circuit may include a fuse block, a controller, and a fuse latch array. The fuse block provides a boot-up enable signal and repair information. The controller generates a voltage control signal in response to the boot-up enable signal. The fuse latch array stores repair information provided from the fuse block. The voltage control signal, which is used as a bulk bias of a transistor formed in the fuse latch array, is adjustable.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Inventors: Woong Kyu CHOI, Jong Man IM, Jun Cheol PARK
  • Publication number: 20160179125
    Abstract: A semiconductor device includes: an internal voltage generation block suitable for generating an internal voltage based on first and second external voltages whose power-up sections are different from each other; and a control block suitable for fixing the internal voltage to a predetermined voltage level during a control section including a first power-up section of the first external voltage and a second power-up section of the second external voltage.
    Type: Application
    Filed: April 28, 2015
    Publication date: June 23, 2016
    Inventors: Jong-Man IM, Jun-Cheol PARK
  • Patent number: 9324459
    Abstract: A repair information storage circuit may include a fuse block, a controller, and a fuse latch array. The fuse block provides a boot-up enable signal and repair information. The controller generates a voltage control signal in response to the boot-up enable signal. The fuse latch array stores repair information provided from the fuse block. The voltage control signal, which is used as a bulk bias of a transistor formed in the fuse latch array, is adjustable.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: April 26, 2016
    Assignee: SK hynix Inc.
    Inventors: Woong Kyu Choi, Jong Man Im, Jun Cheol Park
  • Patent number: 9323276
    Abstract: A voltage generation circuit includes a plurality of voltage generation units each configured to include an internal voltage with a reference voltage, generate a detection signal based on a comparison result between the internal voltage and the reference voltage, and adjust the level of the internal voltage in response to an oscillation signal, a control unit configured to generate an oscillation control signal in response to the detection signals, an oscillator configured to generate the oscillation signal in response to the oscillation control signal, and a selective output unit configured to selectively supply the oscillation signal to one or more of the plurality of voltage generation units in response to the detection signals.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: April 26, 2016
    Assignee: SK HYNIX INC.
    Inventor: Jong Man Im
  • Publication number: 20150364166
    Abstract: A semiconductor device includes: a sense amplification block suitable for sensing and amplifying a data loaded on a pair of data lines based on a pull-up driving voltage supplied through a pull-up power source line and a pull-down driving voltage supplied through a pull-down power source line; and a voltage supply block suitable for supplying a first high voltage as the pull-up driving voltage to the pull-up power source line and a first low voltage as the pull-down driving voltage to the pull-down power source line in a first mode, and supplying the first high voltage as the pull-up driving voltage to the pull-up power source line and a second low voltage having a voltage level lower than a voltage level of the first low voltage as the pull-down driving voltage to the pull-down power source line during an initial period of a second mode which is a subsequent mode of the first mode.
    Type: Application
    Filed: October 29, 2014
    Publication date: December 17, 2015
    Inventors: Jong-Man IM, Sung-Soo CHI
  • Patent number: 9093174
    Abstract: A refresh control circuit of a semiconductor apparatus includes a variable delay unit configured to delay a signal that is activated quickest among a plurality of row address strobe signals activated at a predetermined time interval by a predetermined time, and to generate a preliminary pulse signal, and a piled delay unit configured to delay the preliminary pulse signal by various times, and to generate a plurality of refresh period pulse signals that are sequentially activated.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 28, 2015
    Assignee: Sk Hynix Inc.
    Inventor: Jong Man Im
  • Publication number: 20140126311
    Abstract: A refresh control circuit of a semiconductor apparatus includes a variable delay unit configured to delay a signal that is activated quickest among a plurality of row address strobe signals activated at a predetermined time interval by a predetermined time, and to generate a preliminary pulse signal, and a piled delay unit configured to delay the preliminary pulse signal by various times, and to generate a plurality of refresh period pulse signals that are sequentially activated.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 8, 2014
    Applicant: SK HYNIX INC.
    Inventor: Jong man IM
  • Publication number: 20140062445
    Abstract: A voltage generation circuit includes a plurality of voltage generation units each configured to include an internal voltage with a reference voltage, generate a detection signal based on a comparison result between the internal voltage and the reference voltage, and adjust the level of the internal voltage in response to an oscillation signal, a control unit configured to generate an oscillation control signal in response to the detection signals, an oscillator configured to generate the oscillation signal in response to the oscillation control signal, and a selective output unit configured to selectively supply the oscillation signal to one or more of the plurality of voltage generation units in response to the detection signals.
    Type: Application
    Filed: December 11, 2012
    Publication date: March 6, 2014
    Applicant: SK HYNIX INC.
    Inventor: Jong Man IM