Patents by Inventor Kee Teok Park

Kee Teok Park 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: 11699481
    Abstract: A stacked memory device includes a plurality of lower word lines extending in a first direction, a bit line positioned over the plurality of the lower word lines and extending in a second direction intersecting with the first direction, and a plurality of upper word lines positioned over the bit line and extending in the first direction. The stacked memory device also includes a plurality of lower memory cells including a lower capacitor and a lower switching element between the lower word lines and the bit line. The stacked memory device further includes a plurality of upper memory cells including an upper capacitor and an upper switching element between the bit line and the upper word lines.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: July 11, 2023
    Assignee: SK hynix Inc.
    Inventor: Kee Teok Park
  • Publication number: 20220343971
    Abstract: A stacked memory device includes a plurality of lower word lines extending in a first direction, a bit line positioned over the plurality of the lower word lines and extending in a second direction intersecting with the first direction, and a plurality of upper word lines positioned over the bit line and extending in the first direction. The stacked memory device also includes a plurality of lower memory cells including a lower capacitor and a lower switching element between the lower word lines and the bit line. The stacked memory device further includes a plurality of upper memory cells including an upper capacitor and an upper switching element between the bit line and the upper word lines.
    Type: Application
    Filed: July 11, 2022
    Publication date: October 27, 2022
    Applicant: SK hynix Inc.
    Inventor: Kee Teok PARK
  • Patent number: 11386950
    Abstract: A stacked memory device includes a plurality of lower word lines extending in a first direction, a bit line positioned over the plurality of the lower word lines and extending in a second direction intersecting with the first direction, and a plurality of upper word lines positioned over the bit line and extending in the first direction. The stacked memory device also includes a plurality of lower memory cells including a lower capacitor and a lower switching element between the lower word lines and the bit line. The stacked memory device further includes a plurality of upper memory cells including an upper capacitor and an upper switching element between the bit line and the upper word lines.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: July 12, 2022
    Assignee: SK hynix Inc.
    Inventor: Kee Teok Park
  • Publication number: 20220044725
    Abstract: A stacked memory device includes a plurality of lower word lines extending in a first direction, a bit line positioned over the plurality of the lower word lines and extending in a second direction intersecting with the first direction, and a plurality of upper word lines positioned over the bit line and extending in the first direction. The stacked memory device also includes a plurality of lower memory cells including a lower capacitor and a lower switching element between the lower word lines and the bit line. The stacked memory device further includes a plurality of upper memory cells including an upper capacitor and an upper switching element between the bit line and the upper word lines.
    Type: Application
    Filed: January 15, 2021
    Publication date: February 10, 2022
    Applicant: SK hynix Inc.
    Inventor: Kee Teok PARK
  • Patent number: 10176856
    Abstract: A semiconductor memory apparatus may be provided. The semiconductor memory apparatus may include a row decoder configured to generate one or more row decoding signals based on a plurality of row addresses. The semiconductor memory apparatus may include a column decoder configured to generate one or more column decoding signals based on a plurality of column addresses.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: January 8, 2019
    Assignee: SK hynix Inc.
    Inventor: Kee Teok Park
  • Publication number: 20180108411
    Abstract: A resistive memory apparatus may include a memory cell array and a selective write circuit. The memory cell array may include a plurality of resistive memory cells coupled between a plurality of word lines and a plurality of bit lines. The selective write circuit may determine whether or not to perform a pre-read/comparison operation for a memory cell on which a next write operation is scheduled to be performed, based on a logic level of input data provided for a write operation. The selective write circuit may control the write operation for the memory cell array according to a determination result of the pre-read/comparison operation.
    Type: Application
    Filed: March 28, 2017
    Publication date: April 19, 2018
    Applicant: SK hynix Inc.
    Inventor: Kee Teok PARK
  • Patent number: 9947404
    Abstract: A resistive memory apparatus may include a memory cell array and a selective write circuit. The memory cell array may include a plurality of resistive memory cells coupled between a plurality of word lines and a plurality of bit lines. The selective write circuit may determine whether or not to perform a pre-read/comparison operation for a memory cell on which a next write operation is scheduled to be performed, based on a logic level of input data provided for a write operation. The selective write circuit may control the write operation for the memory cell array according to a determination result of the pre-read/comparison operation.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: April 17, 2018
    Assignee: SK hynix Inc.
    Inventor: Kee Teok Park
  • Publication number: 20180053541
    Abstract: A semiconductor memory apparatus may be provided. The semiconductor memory apparatus may include a row decoder configured to generate one or more row decoding signals based on a plurality of row addresses. The semiconductor memory apparatus may include a column decoder configured to generate one or more column decoding signals based on a plurality of column addresses.
    Type: Application
    Filed: August 17, 2017
    Publication date: February 22, 2018
    Applicant: SK hynix Inc.
    Inventor: Kee Teok Park
  • Patent number: 9564888
    Abstract: A voltage generation apparatus may include an external voltage sensing circuit configured to generate a first start signal and a second start signal by sensing the magnitude of a first external voltage and the magnitude of a second external voltage. The voltage generation apparatus may include an internal voltage sensing circuit configured to generate a voltage generation signal by comparing an internal voltage with a target voltage. The voltage generation apparatus may include a voltage pumping circuit configured to be activated in response to the first start signal, configured to perform a pumping operation based on the voltage generation signal, and configured to generate the internal voltage. The voltage generation apparatus may include a voltage regulating circuit configured to be activated in response to the first and second start signals, and configured to generate the internal voltage based on the voltage generation signal.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: February 7, 2017
    Assignee: SK HYNIX INC.
    Inventors: Hyun Ju Ham, Kee Teok Park, Hyung Sik Won
  • Publication number: 20160164513
    Abstract: A voltage generation apparatus may include an external voltage sensing circuit configured to generate a first start signal and a second start signal by sensing the magnitude of a first external voltage and the magnitude of a second external voltage. The voltage generation apparatus may include an internal voltage sensing circuit configured to generate a voltage generation signal by comparing an internal voltage with a target voltage. The voltage generation apparatus may include a voltage pumping circuit configured to be activated in response to the first start signal, configured to perform a pumping operation based on the voltage generation signal, and configured to generate the internal voltage. The voltage generation apparatus may include a voltage regulating circuit configured to be activated in response to the first and second start signals, and configured to generate the internal voltage based on the voltage generation signal.
    Type: Application
    Filed: May 12, 2015
    Publication date: June 9, 2016
    Inventors: Hyun Ju HAM, Kee Teok PARK, Hyung Sik WON
  • Patent number: 9251912
    Abstract: A semiconductor memory device comprising a memory cell array with a plurality of word lines, first and second dummy word lines, and a dummy word line driver suitable for separately driving the first and second dummy word lines for a wafer burn-in test where the word lines are driven by group.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: February 2, 2016
    Assignee: SK Hynix Inc.
    Inventors: Hyun-Sung Lee, Kee-Teok Park
  • Publication number: 20150155054
    Abstract: A semiconductor memory device comprising a memory cell array with a plurality of word lines, first and second dummy word lines, and a dummy word line driver suitable for separately driving the first and second dummy word lines for a wafer burn-in test where the word lines are driven by group.
    Type: Application
    Filed: May 16, 2014
    Publication date: June 4, 2015
    Applicant: SK hynix Inc.
    Inventors: Hyun-Sung LEE, Kee-Teok PARK
  • Patent number: 9036435
    Abstract: The semiconductor apparatus includes a reference delay value check unit configured to receive a source signal and delay the source signal to generate a reference delay signal; a process delay value check unit configured to receive the source signal and delay the source signal to generate a process delay signal; and a signal generation unit configured to receive the reference delay signal and the process delay signal, receive an input signal, and variably delay the input signal based on the reference delay signal and the process delay signal to generate an output signal.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 19, 2015
    Assignee: SK Hynix Inc.
    Inventors: Heat Bit Park, Kee Teok Park
  • Patent number: 8867282
    Abstract: A semiconductor apparatus with an open bit line structure includes a memory bank including a plurality of memory cell blocks and dummy mats, in which a plurality of bit lines are formed, a bit line sense amplifier configured to be arranged between the plurality of memory cell blocks and the dummy mats, compare a voltage difference between a bit line and a complementary bit line, and amplify the difference, and a dummy word line driving unit configured to selectively activate a dummy word line of the dummy mat in response to a test mode.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: October 21, 2014
    Assignee: SK Hynix Inc.
    Inventors: Tae Sik Yun, Kee Teok Park
  • Publication number: 20140062523
    Abstract: A semiconductor apparatus includes a chip containing a plurality of through-vias, a test voltage input unit, and a test result reception unit. The test voltage input unit applies a test voltage to one of the plurality of through-vias. The test result reception unit receives an output signal outputted from one or more of the plurality of through-vias.
    Type: Application
    Filed: December 19, 2012
    Publication date: March 6, 2014
    Applicant: SK HYNIX INC.
    Inventors: Chun Seok JEONG, Kee Teok PARK
  • Publication number: 20130315015
    Abstract: The semiconductor apparatus includes a reference delay value check unit configured to receive a source signal and delay the source signal to generate a reference delay signal; a process delay value check unit configured to receive the source signal and delay the source signal to generate a process delay signal; and a signal generation unit configured to receive the reference delay signal and the process delay signal, receive an input signal, and variably delay the input signal based on the reference delay signal and the process delay signal to generate an output signal.
    Type: Application
    Filed: August 1, 2013
    Publication date: November 28, 2013
    Applicant: SK hynix Inc.
    Inventors: Heat Bit PARK, Kee Teok PARK
  • Patent number: 8526251
    Abstract: The semiconductor apparatus includes a reference delay value check unit configured to receive a source signal and delay the source signal to generate a reference delay signal; a process delay value check unit configured to receive the source signal and delay the source signal to generate a process delay signal; and a signal generation unit configured to receive the reference delay signal and the process delay signal, receive an input signal, and variably delay the input signal based on the reference delay signal and the process delay signal to generate an output signal.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: September 3, 2013
    Assignee: SK Hynix Inc.
    Inventors: Heat Bit Park, Kee Teok Park
  • Patent number: 8331190
    Abstract: A semiconductor memory device includes a clock synchronizing unit for receiving a first power voltage through a first power voltage terminal, and an additional power voltage providing unit for additionally providing a second power voltage to the first power voltage terminal for a predetermined period after leaving a power down mode.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 11, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sun-Hyuck Yon, Kee-Teok Park
  • Publication number: 20120218835
    Abstract: A semiconductor apparatus with an open bit line structure includes a memory bank including a plurality of memory cell blocks and dummy mats, in which a plurality of bit lines are formed, a bit line sense amplifier configured to be arranged between the plurality of memory cell blocks and the dummy mats, compare a voltage difference between a bit line and a complementary bit line, and amplify the difference, and a dummy word line driving unit configured to selectively activate a dummy word line of the dummy mat in response to a test mode.
    Type: Application
    Filed: December 28, 2011
    Publication date: August 30, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Tae Sik YUN, Kee Teok PARK
  • Publication number: 20120105124
    Abstract: The semiconductor apparatus includes a reference delay value check unit configured to receive a source signal and delay the source signal to generate a reference delay signal; a process delay value check unit configured to receive the source signal and delay the source signal to generate a process delay signal; and a signal generation unit configured to receive the reference delay signal and the process delay signal, receive an input signal, and variably delay the input signal based on the reference delay signal and the process delay signal to generate an output signal.
    Type: Application
    Filed: December 16, 2010
    Publication date: May 3, 2012
    Applicant: Hynix Semiconductor Inc.
    Inventors: Heat Bit PARK, Kee Teok Park