Patents by Inventor Bok-Rim Ko

Bok-Rim Ko 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: 11170871
    Abstract: A semiconductor apparatus may include a degradation detection circuit and a circuit block. The degradation detection circuit may detect a degradation occurred in a semiconductor apparatus and generate degradation information. The circuit block may include at least one transistor configured to receive a variable bias voltage and a variable gate voltage.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: November 9, 2021
    Assignee: SK hynix Inc.
    Inventors: Woongrae Kim, Bok Rim Ko, Keun Soo Song
  • Patent number: 11081205
    Abstract: A semiconductor apparatus may include a degradation detection circuit and a circuit block. The degradation detection circuit may detect a degradation occurred in a semiconductor apparatus and generate degradation information. The circuit block may include at least one transistor configured to receive a variable bias voltage and a variable gate voltage.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: August 3, 2021
    Assignee: SK hynix Inc.
    Inventors: Woongrae Kim, Bok Rim Ko, Keun Soo Song
  • Publication number: 20200219583
    Abstract: A semiconductor apparatus may include a degradation detection circuit and a circuit block. The degradation detection circuit may detect a degradation occurred in a semiconductor apparatus and generate degradation information. The circuit block may include at least one transistor configured to receive a variable bias voltage and a variable gate voltage.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Applicant: SK hynix Inc.
    Inventors: Woongrae KIM, Bok Rim KO, Keun Soo SONG
  • Publication number: 20200219584
    Abstract: A semiconductor apparatus may include a degradation detection circuit and a circuit block. The degradation detection circuit may detect a degradation occurred in a semiconductor apparatus and generate degradation information. The circuit block may include at least one transistor configured to receive a variable bias voltage and a variable gate voltage.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Applicant: SK hynix Inc.
    Inventors: Woongrae KIM, Bok Rim KO, Keun Soo SONG
  • Patent number: 10629287
    Abstract: A semiconductor apparatus may include a degradation detection circuit and a circuit block. The degradation detection circuit may detect a degradation occurred in a semiconductor apparatus and generate degradation information. The circuit block may include at least one transistor configured to receive a variable bias voltage and a variable gate voltage.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: April 21, 2020
    Assignee: SK hynix Inc.
    Inventors: Woongrae Kim, Bok Rim Ko, Keun Soo Song
  • Publication number: 20200082862
    Abstract: A semiconductor package includes a first semiconductor chip and a second semiconductor chip. The first semiconductor chip has a first pad region located at a first region of the first semiconductor chip and a second pad region located at a second region of the first semiconductor chip. The second semiconductor chip has a third pad region located at a first region of the second semiconductor chip and a fourth pad region located at a second region of the second semiconductor chip. The second semiconductor chip is stacked on the first semiconductor chip to be offset in a first lateral direction relative to the first semiconductor chip.
    Type: Application
    Filed: December 13, 2018
    Publication date: March 12, 2020
    Applicant: SK hynix Inc.
    Inventors: Woongrae KIM, Bok Rim KO, Ki Up KIM, Yoo Jong LEE
  • Patent number: 10326446
    Abstract: A semiconductor apparatus may include a logic circuit, a power gating circuit and a power gating control system. The logic circuit may operate by receiving a first power supply voltage and a second power supply voltage, and may retain an output signal at a predetermined logic value during a standby operation of the semiconductor apparatus. The power gating circuit may apply the first power supply voltage and the second power supply voltage to the logic circuit when a gating control signal is in an enabled state. The power gating control system may test whether the output signal of the logic circuit retains the predetermined logic value when the power gating circuit is turned off, and may generate the gating control signal based on a test result and an operation mode of the semiconductor apparatus.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: June 18, 2019
    Assignee: SK hynix Inc.
    Inventors: Woongrae Kim, Bok Rim Ko, A Ram Rim
  • Publication number: 20180337676
    Abstract: A semiconductor apparatus may include a logic circuit, a power gating circuit and a power gating control system. The logic circuit may operate by receiving a first power supply voltage and a second power supply voltage, and may retain an output signal at a predetermined logic value during a standby operation of the semiconductor apparatus. The power gating circuit may apply the first power supply voltage and the second power supply voltage to the logic circuit when a gating control signal is in an enabled state. The power gating control system may test whether the output signal of the logic circuit retains the predetermined logic value when the power gating circuit is turned off, and may generate the gating control signal based on a test result and an operation mode of the semiconductor apparatus.
    Type: Application
    Filed: December 4, 2017
    Publication date: November 22, 2018
    Applicant: SK hynix Inc.
    Inventors: Woongrae KIM, Bok Rim KO, A Ram RIM
  • Patent number: 10134484
    Abstract: A semiconductor system includes a controller and a semiconductor device. The controller outputs a burn-in test signal, a clock signal and command/address signals. The semiconductor device enters a first test mode if the burn-in test signal is inputted. The semiconductor device enters a second test mode according to a level combination of the command/address signals in synchronization with the clock signal after the semiconductor device enters the first test mode. The semiconductor device enters a third test mode according to an other level combination of the command/address signals in synchronization with the clock signal after the semiconductor device enters the second test mode.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: November 20, 2018
    Assignee: SK hynix Inc.
    Inventors: Myung Kyun Kwak, Bok Rim Ko
  • Publication number: 20180322938
    Abstract: A semiconductor apparatus may include a degradation detection circuit and a circuit block. The degradation detection circuit may detect a degradation occurred in a semiconductor apparatus and generate degradation information. The circuit block may include at least one transistor configured to receive a variable bias voltage and a variable gate voltage.
    Type: Application
    Filed: December 18, 2017
    Publication date: November 8, 2018
    Applicant: SK hynix Inc.
    Inventors: Woongrae KIM, Bok Rim KO, Keun Soo SONG
  • Patent number: 9696750
    Abstract: The semiconductor device includes a command generator, an information signal storage unit, a termination signal generator and a code generator. The command generator generates a mode register write command signal, a start command signal and a termination command signal from external command signals. The information signal storage unit extracts information signals from the external command signals to store the information signals and output the information signals. The termination signal generator generates a termination signal in response to the information signals. The code generator generates code signals to control a timing of a control signal.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 4, 2017
    Assignee: SK hynix Inc.
    Inventor: Bok Rim Ko
  • Patent number: 9600424
    Abstract: Semiconductor chips are provided. The semiconductor chip includes a first data pad, a first data strobe pad and a second data pad sequentially arrayed from a command address pad in a first direction. In addition, the semiconductor chip includes a third data pad, a second data strobe pad and a fourth data pad sequentially arrayed from the command address pad in a second direction. Data are inputted and outputted through the first and fourth data pads or through the second and third data pads in a predetermined bit organization. Related semiconductor chip packages and semiconductor systems are also provided.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 21, 2017
    Assignee: SK hynix Inc.
    Inventors: Bok Rim Ko, Dong Kyun Kim
  • Patent number: 9576627
    Abstract: A semiconductor device includes a flag signal generating circuit, a reference voltage generating circuit, and a first buffer. The flag signal generating circuit generates a flag signal based on an internal command and a training control code which are extracted from an external signal. The reference voltage generating circuit receives a set code based on the flag signal, an input control code and an output control code, and generates a reference voltage whose level is set based on the set code. The first buffer buffers the external signal based on the reference voltage to generate an internal signal, and generates a calibration code from the internal signal based on the flag signal to output the calibration code.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: February 21, 2017
    Assignee: SK HYNIX INC.
    Inventor: Bok Rim Ko
  • Publication number: 20160372171
    Abstract: A semiconductor device includes a flag signal generating circuit, a reference voltage generating circuit, and a first buffer. The flag signal generating circuit generates a flag signal based on an internal command and a training control code which are extracted from an external signal. The reference voltage generating circuit receives a set code based on the flag signal, an input control code and an output control code, and generates a reference voltage whose level is set based on the set code. The first buffer buffers the external signal based on the reference voltage to generate an internal signal, and generates a calibration code from the internal signal based on the flag signal to output the calibration code.
    Type: Application
    Filed: October 16, 2015
    Publication date: December 22, 2016
    Inventor: Bok Rim KO
  • Publication number: 20160306381
    Abstract: The semiconductor device includes a command generator, an information signal storage unit, a termination signal generator and a code generator. The command generator generates a mode register write command signal, a start command signal and a termination command signal from external command signals. The information signal storage unit extracts information signals from the external command signals to store the information signals and output the information signals. The termination signal generator generates a termination signal in response to the information signals. The code generator generates code signals to control a timing of a control signal.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventor: Bok Rim KO
  • Publication number: 20160291082
    Abstract: A semiconductor system includes a controller and a semiconductor device. The controller outputs a burn-in test signal, a clock signal and command/address signals. The semiconductor device enters a first test mode if the burn-in test signal is inputted. The semiconductor device enters a second test mode according to a level combination of the command/address signals in synchronization with the clock signal after the semiconductor device enters the first test mode. The semiconductor device enters a third test mode according to an other level combination of the command/address signals in synchronization with the clock signal after the semiconductor device enters the second test mode.
    Type: Application
    Filed: July 24, 2015
    Publication date: October 6, 2016
    Inventors: Myung Kyun KWAK, Bok Rim KO
  • Patent number: 9412434
    Abstract: Semiconductor systems are provided. A semiconductor system may include a first semiconductor device and a second semiconductor device. The first semiconductor device may output a command and a power supply voltage. The second semiconductor device may generate pulses of a reset signal for an initialization operation and pulses of an auto-refresh signal for an auto-refresh operation in response to a first reset command generated in response to the command after the power supply voltage reaches a target voltage level. The second semiconductor device may generate the pulses of the reset signal in response to a second reset command generated in response to the command.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: August 9, 2016
    Assignee: SK hynix Inc.
    Inventors: Bok Rim Ko, Haeng Seon Chae
  • Patent number: 9412468
    Abstract: The semiconductor device includes a flag signal generator, a reference voltage generator and a first buffer. The flag signal generator generates a flag signal in response to an internal command and an information code. The reference voltage generator receives a set code in response to the flag signal, and generates a reference voltage having a voltage level regulated according to the set code. The first buffer buffers the external signal in response to the reference voltage to generate an internal signal, and generates a calibration code in response to the flag signal.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: August 9, 2016
    Assignee: SK hynix Inc.
    Inventor: Bok Rim Ko
  • Patent number: 9405313
    Abstract: The semiconductor device includes a command generator, an information signal storage unit, a termination signal generator and a code generator. The command generator generates a mode register write command signal, a start command signal and a termination command signal from external command signals. The information signal storage unit extracts information signals from the external command signals to store the information signals and output the information signals. The termination signal generator generates a termination signal in response to the information signals. The code generator generates code signals to control a timing of a control signal.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: August 2, 2016
    Assignee: SK hynix Inc.
    Inventor: Bok Rim Ko
  • Patent number: 9336844
    Abstract: A semiconductor device includes a clock shifter configured to shift an active control signal by a predetermined number of clocks and output a shift signal according to a test signal; a command selection block configured to select any one of the active control signal and the shift signal according to the test signal, and output an active command signal; an active control block configured to control an active state of a bank active signal according to the active command signal; and an address latch block configured to latch an internal address according to the active command signal and the active control signal, and output a row address to a core region.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 10, 2016
    Assignee: Sk hynix Inc.
    Inventors: Duck Hwa Hong, Bok Rim Ko, Sang Il Park