Patents by Inventor Byeong-Chan Choi

Byeong-Chan Choi 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: 20240096557
    Abstract: A capacitor component includes a body having a first surface and a second surface opposing each other and including a multilayer structure in which a plurality of dielectric layers are stacked and first and second internal electrodes are alternately disposed with respective dielectric layers interposed therebetween and exposed to the first surface and the second surface, respectively, first and second metal layers covering the first surface and the second surface and connected to the first and second internal electrodes, respectively, first and second ceramic layers covering the first and second metal layers, and first and second external electrodes covering the first and second ceramic layers and connected to the first and second metal layers to be electrically connected to the first and second internal electrodes, respectively.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 21, 2024
    Inventors: Sung Hyun CHO, Byeong Chan KWON, Yong Jin YUN, Ki Pyo HONG, Jae Yeol CHOI
  • Patent number: 11693564
    Abstract: An apparatus includes a storage area signal generation circuit configured to generate a storage area signal when performing an internal information storage operation and an external information storage operation; and an information storage circuit configured to receive internal failure information, stored in the apparatus, based on the storage area signal and store the received internal failure information as failure information in a set storage capacity, and store external failure information, applied from outside the apparatus, as the failure information in a variable storage capacity.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: July 4, 2023
    Assignee: SK hynix Inc.
    Inventor: Byeong Chan Choi
  • Publication number: 20220229563
    Abstract: An apparatus includes a storage area signal generation circuit configured to generate a storage area signal when performing an internal information storage operation and an external information storage operation; and an information storage circuit configured to receive internal failure information, stored in the apparatus, based on the storage area signal and store the received internal failure information as failure information in a set storage capacity, and store external failure information, applied from outside the apparatus, as the failure information in a variable storage capacity.
    Type: Application
    Filed: May 25, 2021
    Publication date: July 21, 2022
    Applicant: SK hynix Inc.
    Inventor: Byeong Chan CHOI
  • Publication number: 20220001463
    Abstract: Provided are a hole machining apparatus for an optical film, comprising: a clamping part for fixing a plurality of optical films in stacked laminated state; and a machining part for performing a hole operation on a predetermined region of the plurality of optical films so as to sequentially pass through the optical films along the laminated direction in a state where the optical films are fixed to the clamping part, wherein upon the hole operation, the machining part comprises a drill part provided to perform a primary hole machining operation and a bite unit provided to perform a secondary hole operation in the primary hole operation region. Also provided is a hole machining method for an optical film, comprising clamping a plurality of laminated optical films at a predetermined pressure in the hole machining apparatus.
    Type: Application
    Filed: October 21, 2019
    Publication date: January 6, 2022
    Inventors: Seong Yong WE, Sung Wook HWANG, Bum Seung LIM, Byeong Chan CHOI, Seul Ki PARK, Ye Jin MUN, Woo Yong SONG, Zi Shuo ZHANG
  • Patent number: 11145351
    Abstract: A semiconductor device includes an error check and scrub (ECS) command generation circuit and an ECS control circuit. The ECS command generation circuit is configured to generate an ECS command by controlling a speed of a first counting operation that is performed based on a refresh command or a bank refresh command, according to a temperature and a refresh mode of the semiconductor device, or is configured to generate the ECS command by performing a second counting operation based on a periodic signal. The ECS control circuit is configured to sequentially generate an ECS active command, an ECS read command, an ECS write command, an ECS pre-charge command, and an end signal based on the ECS command. The refresh mode includes a fine granularity refresh (FGR) mode, and the temperature includes a high temperature that is a temperature above a certain temperature.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: October 12, 2021
    Assignee: SK hynix Inc.
    Inventors: Jung Ho Lim, Byeong Chan Choi
  • Publication number: 20210142848
    Abstract: A semiconductor device includes an error check and scrub (ECS) command generation circuit and an ECS control circuit. The ECS command generation circuit is configured to generate an ECS command by controlling a speed of a first counting operation that is performed based on a refresh command or a bank refresh command, according to a temperature and a refresh mode of the semiconductor device, or is configured to generate the ECS command by performing a second counting operation based on a periodic signal. The ECS control circuit is configured to sequentially generate an ECS active command, an ECS read command, an ECS write command, an ECS pre-charge command, and an end signal based on the ECS command. The refresh mode includes a fine granularity refresh (FGR) mode, and the temperature includes a high temperature that is a temperature above a certain temperature.
    Type: Application
    Filed: August 3, 2020
    Publication date: May 13, 2021
    Applicant: SK hynix Inc.
    Inventors: Jung Ho LIM, Byeong Chan CHOI
  • Patent number: 9514849
    Abstract: A semiconductor memory device includes a first fuse set block including a fuse array for storing first repair information, and a control block configured to store second repair information in a first mode, and generate an output control signal when input addresses applied from an external source and the second repair information are the same, in a second mode, wherein the first fuse set block enables a first match signal for accessing a first redundancy memory cell when the stored first repair information and the input addresses are the same, and disables the first match signal in response to the output control signal.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: December 6, 2016
    Assignee: SK Hynix Inc.
    Inventors: Jung-Taek You, Byeong-Chan Choi
  • Publication number: 20160300627
    Abstract: A semiconductor memory device includes a first fuse set block including a fuse array for storing first repair information, and a control block configured to store second repair information in a first mode, and generate an output control signal when input addresses applied from an external source and the second repair information are the same, in a second mode, wherein the first fuse set block enables a first match signal for accessing a first redundancy memory cell when the stored first repair information and the input addresses are the same, and disables the first match signal in response to the output control signal.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 13, 2016
    Inventors: Jung-Taek YOU, Byeong-Chan CHOI
  • Publication number: 20150357051
    Abstract: A semiconductor memory device includes: a memory cell array region having a plurality of normal cell lines and a plurality of repair cell lines; a plurality of normal cell line selection units suitable for selecting the plurality of normal cell lines, respectively, in response to a local address; a plurality of repair cell line selection units suitable for selecting the plurality of repair cell lines, respectively, in place of normal cell line selection units corresponding to fail information of the local address; a fuse driving unit comprising a fuse array in which the fail information is programmed, suitable for disabling the normal cell line selection units corresponding to the fail information, and enabling normal cell line selection units unrelated to the fail information; and an address determination unit suitable for controlling the plurality of repair cell line selection units based on the fail information.
    Type: Application
    Filed: August 19, 2015
    Publication date: December 10, 2015
    Inventors: Doo-Chan LEE, Byeong-Chan CHOI, One-Gyun NA
  • Publication number: 20150357052
    Abstract: A semiconductor memory device includes: a memory cell array region having a plurality of normal cell lines and a plurality of repair cell lines; a plurality of normal cell line selection units suitable for selecting the plurality of normal cell lines, respectively, in response to a local address; a plurality of repair cell line selection units suitable for selecting the plurality of repair cell lines, respectively, in place of normal cell line selection units corresponding to fail information of the local address; a fuse driving unit comprising a fuse array in which the fail information is programmed, suitable for disabling the normal cell line selection units corresponding to the fail information, and enabling normal cell line selection units unrelated to the fail information; and an address determination unit suitable for controlling the plurality of repair cell line selection units based on the fail information.
    Type: Application
    Filed: August 19, 2015
    Publication date: December 10, 2015
    Inventors: Doo-Chan LEE, Byeong-Chan CHOI, One-Gyun NA
  • Patent number: 9142325
    Abstract: A semiconductor memory device includes: a memory cell array region having a plurality of normal cell lines and a plurality of repair cell lines; a plurality of normal cell line selection units suitable for selecting the plurality of normal cell lines, respectively, in response to a local address; a plurality of repair cell line selection units suitable for selecting the plurality of repair cell lines, respectively, in place of normal cell line selection units corresponding to fail information of the local address; a fuse driving unit comprising a fuse array in which the fail information is programmed, suitable for disabling the normal cell line selection units corresponding to the fail information, and enabling normal cell line selection units unrelated to the fail information; and an address determination unit suitable for controlling the plurality of repair cell line selection units based on the fail information.
    Type: Grant
    Filed: December 15, 2013
    Date of Patent: September 22, 2015
    Assignee: SK Hynix Inc.
    Inventors: Doo-Chan Lee, Byeong-Chan Choi, One-Gyun Na
  • Publication number: 20150098286
    Abstract: A semiconductor memory device includes: a memory cell array region having a plurality of normal cell lines and a plurality of repair cell lines; a plurality of normal cell line selection units suitable for selecting the plurality of normal cell lines, respectively, in response to a local address; a plurality of repair cell line selection units suitable for selecting the plurality of repair cell lines, respectively, in place of normal cell line selection units corresponding to fail information of the local address; a fuse driving unit comprising a fuse array in which the fail information is programmed, suitable for disabling the normal cell line selection units corresponding to the fail information, and enabling normal cell line selection units unrelated to the fail information; and an address determination unit suitable for controlling the plurality of repair cell line selection units based on the fail information.
    Type: Application
    Filed: December 15, 2013
    Publication date: April 9, 2015
    Applicant: SK hynix Inc.
    Inventors: Doo-Chan LEE, Byeong-Chan CHOI, One-Gyun NA
  • Patent number: 8891325
    Abstract: A word line driving circuit includes, inter alia: a word line driving signal generator, a main word line enable signal controller, and a sub word line driver. The word line driving signal generator activates a word line boosting signal, a pre-main word line enable signal, and a word line off signal in response to an active signal and a precharge signal. The main word line enable signal controller receives the pre-main word line enable signal and outputs it as the main word line enable signal in response to a main word line test mode signal. The sub word line driver uses the word line boosting signal as a driving voltage, and drives a sub word line in response to the main word line enable signal and the word line off signal.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: November 18, 2014
    Assignee: SK Hynix Inc.
    Inventors: Byeong Chan Choi, Gyung Tae Kim
  • Publication number: 20130215697
    Abstract: A word line driving circuit includes, inter alia: a word line driving signal generator, a main word line enable signal controller, and a sub word line driver. The word line driving signal generator activates a word line boosting signal, a pre-main word line enable signal, and a word line off signal in response to an active signal and a precharge signal. The main word line enable signal controller receives the pre-main word line enable signal and outputs it as the main word line enable signal in response to a main word line test mode signal. The sub word line driver uses the word line boosting signal as a driving voltage, and drives a sub word line in response to the main word line enable signal and the word line off signal.
    Type: Application
    Filed: September 3, 2012
    Publication date: August 22, 2013
    Applicant: SK HYNIX INC.
    Inventors: Byeong Chan CHOI, Gyung Tae KIM
  • Patent number: 8339885
    Abstract: Various embodiments of a data transfer circuit of a semiconductor apparatus are disclosed. In one exemplary embodiment, the data transfer circuit may include a first data line, a second data line, a first transfer unit configured to amplify data on the first data line in response to a first control signal and transfer amplified data to the second data line, and a second transfer unit configured to electrically connect the first data line to the second data line in response to a second control signal.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: December 25, 2012
    Assignee: SK Hynix Inc.
    Inventor: Byeong Chan Choi
  • Publication number: 20120002492
    Abstract: Various embodiments of a data transfer circuit of a semiconductor apparatus are disclosed. In one exemplary embodiment, the data transfer circuit may include a first data line, a second data line, a first transfer unit configured to amplify data on the first data line in response to a first control signal and transfer amplified data to the second data line, and a second transfer unit configured to electrically connect the first data line to the second data line in response to a second control signal.
    Type: Application
    Filed: December 16, 2010
    Publication date: January 5, 2012
    Applicant: Hynix Semiconductor Inc.
    Inventor: Byeong Chan CHOI
  • Patent number: 8027205
    Abstract: A semiconductor memory device includes a strobe signal generator for receiving a write command and generating a write strobe signal that defines an activation period variably according to an operation frequency, and a data transfer unit for transferring data from an external device to an internal data line in response to the write strobe signal.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: September 27, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Byeong-Chan Choi
  • Publication number: 20100165759
    Abstract: A semiconductor memory device includes a strobe signal generator for receiving a write command and generating a write strobe signal that defines an activation period variably according to an operation frequency, and a data transfer unit for transferring data from an external device to an internal data line in response to the write strobe signal.
    Type: Application
    Filed: June 23, 2009
    Publication date: July 1, 2010
    Inventor: Byeong-Chan Choi