Patents by Inventor Won-Joo Yun

Won-Joo Yun 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: 11922996
    Abstract: A semiconductor device may include one or more output drivers. An output driver may be adjusted for impedance matching by applying a body voltage to one or more transistors of the output driver. In some examples, the body voltage applied may be based on a comparison between a reference voltage and a voltage at an external terminal. In some examples, the semiconductor device may include a calibration circuit that includes a comparator and an up/down counter that, based on a signal from the comparator, generates a code indicating the body voltage to be applied. The body voltage may be applied by a voltage generator in some examples.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: March 5, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Hyunui Lee, Won Joo Yun
  • Patent number: 11886376
    Abstract: An apparatus including reconfigurable interface circuits and associated systems and methods are disclosed herein. An reconfigurable interface circuit may include an output buffer and an input buffer coupled to a connector for respectively generating and receiving signals. The reconfigurable interface circuit may include a control circuit configured to control operation of the input and output buffers along with additional circuits to selectively implement one or more from a set of selectable communication settings.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: January 30, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Won Joo Yun, Sang-Hoon Shin
  • Publication number: 20240030171
    Abstract: Implementations described herein relate to various structures, integrated assemblies, and memory devices. In some implementations, a semiconductor package may include a substrate having a first plurality of substrate bond pads and a second plurality of substrate bond pads, and a semiconductor die having a first plurality of die bond pads and a second plurality of die bond pads. Each die bond pad, included in the first plurality of die bond pads, may be connected to a corresponding substrate bond pad, included in the first plurality of substrate bond pads, using bump bonding, and each die bond pad, included in the second plurality of die bond pads, may be connected to a corresponding substrate bond pad, included in the second plurality of substrate bond pads, using wire bonding.
    Type: Application
    Filed: July 20, 2022
    Publication date: January 25, 2024
    Inventors: Youngkwon JO, Won Joo YUN
  • Patent number: 11855812
    Abstract: A keeper device is used in a hybrid loop unrolled DFE circuit to selectively output signals from equalizers corresponding to a specific possibility of the values of the previous bit (e.g., logical high or logical low) when DFE technique is not used. Those equalizers corresponding to possibilities other than the specific possibility of the values of the previous bit are disabled in the hybrid loop unrolled DFE circuit. As such, the hybrid loop unrolled DFE circuit saves power when the DFE technique is not used since only a portion of the total equalizers in the hybrid loop unrolled DFE circuit are powered.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: December 26, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Jennifer E. Taylor, Won Joo Yun
  • Publication number: 20230395105
    Abstract: Systems and methods that may enable alignment of a receiver enable signal with one or more clocking signals. By aligning the receiver operations with the one or more clocking signals, a likelihood of a false or incorrect data capture may be reduced, which may improve operation of a memory system. Reducing a likelihood of incorrect data capture may increase an accuracy of a distortion correction operation of a decision feedback equalizer (DFE).
    Type: Application
    Filed: June 2, 2022
    Publication date: December 7, 2023
    Inventors: William C. Waldrop, Won Joo Yun
  • Publication number: 20230362040
    Abstract: A keeper device is used in a hybrid loop unrolled DFE circuit to selectively output signals from equalizers corresponding to a specific possibility of the values of the previous bit (e.g., logical high or logical low) when DFE technique is not used. Those equalizers corresponding to possibilities other than the specific possibility of the values of the previous bit are disabled in the hybrid loop unrolled DFE circuit. As such, the hybrid loop unrolled DFE circuit saves power when the DFE technique is not used since only a portion of the total equalizers in the hybrid loop unrolled DFE circuit are powered.
    Type: Application
    Filed: May 4, 2022
    Publication date: November 9, 2023
    Inventors: Jennifer E. Taylor, Won Joo Yun
  • Patent number: 11789835
    Abstract: Test input/output speed conversion and related apparatuses and methods are disclosed. An apparatus includes a glue circuit and a BIST circuit for core circuitry of an integrated circuit device. The, the BIST circuit includes a test interface, one or more inputs, and one or more outputs. The BIST circuit is configured to operate at a first speed. The glue circuit is configured to interface with the test interface, the one or more inputs, and the one or more outputs of the BIST circuit. The glue circuit is configured to convert between second speed test interface signals and second speed input/output signals operating at a second speed and first speed test interface signals and first speed input/output signals operating at the first speed. The second speed is different from the first speed.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 17, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Sang-Hoon Shin, Won Joo Yun, Rajesh H. Kariya
  • Patent number: 11677537
    Abstract: The present application is directed to signal delay control and related apparatuses, systems, and methods. An apparatus includes delay elements and control circuitry electrically connected to the delay elements. The delay elements are configured to receive skewed data signals and delay codes indicating delay quantities. The delay elements are also configured to provide delayed data signals delayed relative to the skewed data signals by the delay quantities. The control circuitry is configured to provide the delay codes, which are selected to reduce a timing skew of the delayed data signals relative to a timing skew of the skewed data signals. A system includes a first device, a second device including the apparatus, and transmission lines electrically connected between the first device and the second device. A method includes calibrating the delay codes.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: June 13, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Hyunui Lee, Won Joo Yun, Baekkyu Choi
  • Publication number: 20230110208
    Abstract: A semiconductor device may include one or more output drivers. An output driver may be adjusted for impedance matching by applying a body voltage to one or more transistors of the output driver. In some examples, the body voltage applied may be based on a comparison between a reference voltage and a voltage at an external terminal. In some examples, the semiconductor device may include a calibration circuit that includes a comparator and an up/down counter that, based on a signal from the comparator, generates a code indicating the body voltage to be applied. The body voltage may be applied by a voltage generator in some examples.
    Type: Application
    Filed: October 4, 2021
    Publication date: April 13, 2023
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: HYUNUI LEE, WON JOO YUN
  • Patent number: 11619964
    Abstract: Methods for improving timing in memory devices are disclosed. A method may include sampling a command signal according to a clock signal to obtain standard-timing commands. The method may also include sampling the command signal according to an adjusted clock signal to obtain time-adjusted commands. The method may also include comparing the standard-timing commands and the time-adjusted commands. The method may also include determining an improved timing for the clock signal based on the comparison of the standard-timing commands and the time-adjusted commands. The method may also include adjusting the clock signal based on the improved timing. Associated systems and methods are also disclosed.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: April 4, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Hyunui Lee, Won Joo Yun
  • Publication number: 20230051183
    Abstract: An apparatus including reconfigurable interface circuits and associated systems and methods are disclosed herein. An reconfigurable interface circuit may include an output buffer and an input buffer coupled to a connector for respectively generating and receiving signals. The reconfigurable interface circuit may include a control circuit configured to control operation of the input and output buffers along with additional circuits to selectively implement one or more from a set of selectable communication settings.
    Type: Application
    Filed: August 10, 2021
    Publication date: February 16, 2023
    Inventors: Won Joo Yun, Sang-Hoon Shin
  • Publication number: 20230025173
    Abstract: Methods for improving timing in memory devices are disclosed. A method may include sampling a command signal according to a clock signal to obtain standard-timing commands. The method may also include sampling the command signal according to an adjusted clock signal to obtain time-adjusted commands. The method may also include comparing the standard-timing commands and the time-adjusted commands. The method may also include determining an improved timing for the clock signal based on the comparison of the standard-timing commands and the time-adjusted commands. The method may also include adjusting the clock signal based on the improved timing. Associated systems and methods are also disclosed.
    Type: Application
    Filed: July 26, 2021
    Publication date: January 26, 2023
    Inventors: Hyunui Lee, Won Joo Yun
  • Publication number: 20220303111
    Abstract: The present application is directed to signal delay control and related apparatuses, systems, and methods. An apparatus includes delay elements and control circuitry electrically connected to the delay elements. The delay elements are configured to receive skewed data signals and delay codes indicating delay quantities. The delay elements are also configured to provide delayed data signals delayed relative to the skewed data signals by the delay quantities. The control circuitry is configured to provide the delay codes, which are selected to reduce a timing skew of the delayed data signals relative to a timing skew of the skewed data signals. A system includes a first device, a second device including the apparatus, and transmission lines electrically connected between the first device and the second device. A method includes calibrating the delay codes.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 22, 2022
    Inventors: Hyunui Lee, Won Joo Yun, Baekkyu Choi
  • Publication number: 20220164269
    Abstract: Test input/output speed conversion and related apparatuses and methods are disclosed. An apparatus includes a glue circuit and a BIST circuit for core circuitry of an integrated circuit device. The, the BIST circuit includes a test interface, one or more inputs, and one or more outputs. The BIST circuit is configured to operate at a first speed. The glue circuit is configured to interface with the test interface, the one or more inputs, and the one or more outputs of the BIST circuit. The glue circuit is configured to convert between second speed test interface signals and second speed input/output signals operating at a second speed and first speed test interface signals and first speed input/output signals operating at the first speed. The second speed is different from the first speed.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 26, 2022
    Inventors: Sang-Hoon Shin, Won Joo Yun, Rajesh H. Kariya
  • Publication number: 20210288843
    Abstract: Continuous time linear equalization devices are disclosed. A continuous time linear equalization device may include a first circuit including a first differential amplification element coupled to a first adjustable source degeneration element. The continuous time linear equalization device may also include a second circuit having an input coupled to an output of the first circuit and including a second differential amplification element coupled to a second adjustable source degeneration element. Systems are also disclosed.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 16, 2021
    Inventors: Won Joo Yun, Jennifer E. Taylor
  • Patent number: 10908212
    Abstract: A semiconductor memory device includes first bumps positioned along a first direction; second bumps positioned in parallel to the first bumps along the first direction; first registers connected with the first bumps; and second registers connected with the second bumps. The first registers and the second registers are sequentially connected and form a shift register.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: February 2, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunui Lee, Hye-Seung Yu, Won-Joo Yun
  • Patent number: 10680593
    Abstract: A delay locked loop circuit includes a duty detector configured to detect a duty cycle of a clock signal, and to determine whether to perform a coarse duty cycle correction based on the detected duty, and a delay locked loop core. The delay locked loop core is configured to selectively perform the coarse duty cycle correction for the clock signal according to the determination of the duty detector, perform a coarse lock for the clock signal during a first time period different from a second time period in which the coarse duty cycle correction is performed, and perform a fine duty cycle correction and a fine lock for the clock signal.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 9, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Kyeom Kim, Won-Joo Yun, SukYong Kang, Ho-Jun Chang
  • Patent number: 10651156
    Abstract: A memory package includes a plurality of memory chips stacked on a package substrate. A logic chip is disposed between the plurality of memory chips and the package substrate. The logic chip is configured to control the plurality of memory chips through a plurality of vias passing through the plurality of memory chips. An intermediate chip is connected to the plurality of vias. The intermediate chip is disposed between the plurality of memory chips and the logic chip, and is configured to select at least a subset of the plurality of vias as a data transmission path between the logic chip and the plurality of memory chips, based on a data transmission rate of the logic chip.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: May 12, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hye Seung Yu, Won Joo Yun, Hyun Ui Lee
  • Patent number: 10509070
    Abstract: Disclosed are a method and a device for detecting a short circuit between adjacent micro-bumps. The method includes setting outputs of a pull-up driver and a pull-down driver of a data output circuit connected with a micro-bump to be suitable for a test type and determining whether a short circuit is generated.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: December 17, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Joo Yun, Sukyong Kang, Hye-Seung Yu, Hyunui Lee
  • Publication number: 20190271742
    Abstract: A semiconductor memory device includes first bumps positioned along a first direction; second bumps positioned in parallel to the first bumps along the first direction; first registers connected with the first bumps; and second registers connected with the second bumps. The first registers and the second registers are sequentially connected and form a shift register.
    Type: Application
    Filed: October 24, 2018
    Publication date: September 5, 2019
    Inventors: Hyunui Lee, Hye-Seung Yu, Won-Joo Yun