Patents by Inventor Kwang-Hoon Oh

Kwang-Hoon Oh 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: 20240393705
    Abstract: Disclosed is a substrate processing apparatus in which weight of a buffer module may be reduced compared to the apparatus in the related art.
    Type: Application
    Filed: April 18, 2024
    Publication date: November 28, 2024
    Applicant: SEMES CO., LTD.
    Inventors: Sang Hyun PARK, Seung Hwan LEE, Su Jin AHN, Geon Yup LIM, Jin Ki SHIN, Dong Hoon KANG, Hyun Soo KIM, Kwang Soo KIM, Chang Suk OH, Young Jun LEE
  • Patent number: 12138913
    Abstract: Provided are a control unit that predicts the life of an inkjet head unit and maximizes its life to be used, and a substrate treating apparatus including the same. The control unit performs maintenance of an inkjet head unit for discharging a substrate treatment liquid onto a substrate and comprises a count module for counting the number of discharges for each nozzle of the inkjet head unit, a comparison module for comparing the number of discharges with a reference value to determine whether the number of discharges is equal to or greater than the reference value, and an evaluation module for evaluating whether a life of the inkjet head unit has reached a usable life based on whether the number of discharges of each nozzle is equal to or greater than the reference value.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: November 12, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Yeon Chul Song, Myeong Jun Lim, Kwang Sup Kim, Jong Min Lee, Jun Ho Oh, Ji Hoon Yoo, Young Ho Park
  • Patent number: 12123903
    Abstract: A static electricity visualization apparatus capable of visually identifying a measured level of static electricity is provided.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: October 22, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Jun Ho Oh, Kwang Sup Kim, Jae Hong Kim, Kyung Hun Jang, Young Ho Park, Jong Min Lee, Yeon Chul Song, Sang Min Ha, Ji Hoon Yoo, Myeong Jun Lim
  • Patent number: 12090510
    Abstract: Provided is a method for preparing a silica layer, comprising bringing to gelation a precursor layer formed from a precursor composition comprising a silica precursor, an acid catalyst and a surfactant.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: September 17, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Taek Oh, Chang Hoon Sin, Kwang Seung Park, Moon Soo Park
  • Patent number: 12087848
    Abstract: Power semiconductor device with reduced loss and manufacturing method the same disclosed. Power semiconductor device include a first drift region of a first conductivity type, a second drift region of the first conductivity type formed by epitaxially growing on the first drift region and a plurality of buried ion regions of a second conductivity type formed to be buried in the second drift region.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: September 10, 2024
    Assignee: TRINNO TECHNOLOGY CO., LTD.
    Inventors: Kwang Hoon Oh, Soo Seong Kim, Jin Young Jung, Chongman Yun
  • Publication number: 20240234508
    Abstract: Silicon carbide power semiconductor device having uniform channel length and manufacturing method thereof disclosed. The power semiconductor device includes a drift region of a first conductivity type, a plurality of body regions of a second conductivity type, being formed to be spaced apart from each other with a preset WS in a horizontal direction in an upper region of the drift region, a JFET region of the first conductivity type and a low-resistance region of the first conductivity type, being formed in a separation space between adjacent body regions to contact their side surfaces with the adjacent body regions and a source region of the first conductivity type, being formed in a surface region in the body region in contact with the low-resistance region to be spaced apart from the low-resistance region by a preset channel length.
    Type: Application
    Filed: February 1, 2023
    Publication date: July 11, 2024
    Inventors: Kwang Hoon OH, Jin Young Jung, Soo Seong Kim
  • Publication number: 20240136402
    Abstract: Silicon carbide power semiconductor device having uniform channel length and manufacturing method thereof disclosed. The power semiconductor device includes a drift region of a first conductivity type, a plurality of body regions of a second conductivity type, being formed to be spaced apart from each other with a preset WS in a horizontal direction in an upper region of the drift region, a JFET region of the first conductivity type and a low-resistance region of the first conductivity type, being formed in a separation space between adjacent body regions to contact their side surfaces with the adjacent body regions and a source region of the first conductivity type, being formed in a surface region in the body region in contact with the low-resistance region to be spaced apart from the low-resistance region by a preset channel length.
    Type: Application
    Filed: February 1, 2023
    Publication date: April 25, 2024
    Inventors: Kwang Hoon OH, Jin Young Jung, Soo Seong Kim
  • Publication number: 20230411511
    Abstract: Power semiconductor device with dual shield structure in silicon carbide and manufacturing method thereof disclosed.
    Type: Application
    Filed: January 30, 2023
    Publication date: December 21, 2023
    Inventors: Kwang Hoon OH, Soo Seong KIM, Chongman YUN
  • Publication number: 20230317837
    Abstract: Power semiconductor device with reduced loss and manufacturing method the same disclosed. Power semiconductor device include a first drift region of a first conductivity type, a second drift region of the first conductivity type formed by epitaxially growing on the first drift region and a plurality of buried ion regions of a second conductivity type formed to be buried in the second drift region.
    Type: Application
    Filed: July 25, 2022
    Publication date: October 5, 2023
    Inventors: Kwang Hoon OH, Soo Seong KIM, Jin Young JUNG, Chongman YUN
  • Publication number: 20230215938
    Abstract: Power semiconductor device capable of controlling slope of current and voltage during dynamic switching disclosed. The power semiconductor device may include a semiconductor substrate and a cell array being consisted of a plurality of transistor cells on an active area, wherein each of the plurality of transistor cells may include an emitter region, a body region, a contact region and a gate region, wherein non-uniform threshold voltages may be respectively set in the plurality of transistor cells constituting the cell array, wherein a gate signal may be applied to each of the plurality of transistor cells through an input/output unit, wherein the input/output unit may include a first gate signal path configured for supplying a gate charging current to the gate regions in each of the plurality of transistor cells and a second gate signal path configured for discharging a gate discharging current from the gate region.
    Type: Application
    Filed: June 8, 2022
    Publication date: July 6, 2023
    Inventors: Kwang Hoon OH, Junyoung CHOI, Jin Young JUNG, Soo Seong KIM, Chongman YUN
  • Publication number: 20220173744
    Abstract: A hybrid comparator includes an analog signal combiner and a dynamic latch. The analog signal combiner is configured to receive an input analog signal and an input reference signal, and generate an analog output signal by combining the input analog signal and the input reference signal. The dynamic latch is configured to receive the analog output signal and a clock signal, and generate a digital output signal.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 2, 2022
    Inventors: Soonseob LEE, Kwang Seok HAN, Jong Chan HA, Ilhyun CHO, Heewon SUH, Hyunbae JIN, You Ho LEEM, Seunghun LEE, Kwang Hoon OH
  • Patent number: 8269304
    Abstract: A MOS-gate power semiconductor device includes: a main device area including an active area and an edge termination area; and an auxiliary device area horizontally formed outside the main device area so as to include one or more diodes. Accordingly, it is possible to protect a circuit from an overcurrent and thus to prevent deterioration and/or destruction of a device due to the overcurrent.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: September 18, 2012
    Assignee: Trinno Technology Co., Ltd.
    Inventors: Kwang-Hoon Oh, Byoung-Ho Choo, Soo-Seong Kim, Chong-Man Yun
  • Publication number: 20110169080
    Abstract: A charge-balance power device and a method of manufacturing the charge-balance power device are provided. The charge-balance power device includes: a charge-balance body region in which one or more first conductive type pillars as a first conductive type impurity region and one or more second conductive type pillars as a second conductive type impurity region are arranged; a first conductive type epitaxial layer that is formed on the charge-balance body region; and a transistor region that is formed in the first conductive type epitaxial layer. With this invention, it is possible to form the same charge-balance body region regardless of the structure of the transistor region formed on the top side of wafer.
    Type: Application
    Filed: December 14, 2010
    Publication date: July 14, 2011
    Inventors: Chong-Man YUN, Soo-Seong Kim, Kwang-Hoon Oh
  • Publication number: 20110062490
    Abstract: A MOS-gate power semiconductor device includes: a main device area including an active area and an edge termination area; and an auxiliary device area horizontally formed outside the main device area so as to include one or more diodes. Accordingly, it is possible to protect a circuit from an overcurrent and thus to prevent deterioration and/or destruction of a device due to the overcurrent.
    Type: Application
    Filed: February 12, 2010
    Publication date: March 17, 2011
    Inventors: Kwang-Hoon OH, Byoung-Ho Choo, Soo-Seong Kim, Chong-Man Yun
  • Publication number: 20110049563
    Abstract: A MOS-gate power semiconductor device is provided which includes: one or more P-type wells formed under one or more of a gate metal electrode and a gate bus line and electrically connected to an emitter metal electrode; and one or more N-type wells formed in the P-type well and electrically connected to one or more of the gate metal electrode and the gate bus line. According to this configuration, it is possible to suppress deterioration and/or destruction of a device due to an overcurrent.
    Type: Application
    Filed: February 3, 2010
    Publication date: March 3, 2011
    Inventors: Kwang-Hoon Oh, Byoung-Ho Choo, Soo-Seong Kim, Chong-Man Yun
  • Patent number: 7645659
    Abstract: Provided are a power semiconductor device using a silicon substrate as a FS layer and a method of manufacturing the same. A semiconductor substrate of a first conductivity type is prepared. An epitaxial layer is grown on one surface of the semiconductor substrate. Here, the epitaxial layer is doped at a concentration lower than that of the semiconductor substrate and is intended to be used as a drift region. A base region of a second conductivity type is formed in a predetermined region of the epitaxial layer. An emitter region of the first conductivity type is formed in a predetermined region of the base region. A gate electrode with a gate insulating layer is formed on the base region between the emitter region and the drift region of the epitaxial layer. A rear surface of the semiconductor substrate is ground to reduce the thickness of the semiconductor substrate, thereby setting an FS region of the first conductivity type.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: January 12, 2010
    Assignee: Fairchild Korea Semiconductor, Ltd.
    Inventors: Chong-man Yun, Kwang-hoon Oh, Kyu-hyun Lee, Young-chull Kim
  • Publication number: 20070120215
    Abstract: Provided are a power semiconductor device using a silicon substrate as a FS layer and a method of manufacturing the same. A semiconductor substrate of a first conductivity type is prepared. An epitaxial layer is grown on one surface of the semiconductor substrate. Here, the epitaxial layer is doped at a concentration lower than that of the semiconductor substrate and is intended to be used as a drift region. A base region of a second conductivity type is formed in a predetermined region of the epitaxial layer. An emitter region of the first conductivity type is formed in a predetermined region of the base region. A gate electrode with a gate insulating layer is formed on the base region between the emitter region and the drift region of the epitaxial layer. A rear surface of the semiconductor substrate is ground to reduce the thickness of the semiconductor substrate, thereby setting an FS region of the first conductivity type.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Chong-man Yun, Kwang-hoon Oh, Kyu-hyun Lee, Young-chull Kim
  • Patent number: 6833568
    Abstract: An MOS transistor in the surface of a semiconductor substrate (180) of a first conductivity type, which has a grid of isolations (171) in the surface, each grid unit surrounding a rectangular semiconductor island (102). Each island contains three parallel regions of the opposite conductivity type: the center region (104) is operable as the transistor drain and the two other regions (103 and 105), abutting the isolations, are operable as transistor sources. Transistor gates (106 and 107) are between the parallel regions, completing the formation of two transistors having one common drain. Electrical contacts (108) are placed on both source regions and the drain region. The source contacts are placed so that the spacing (120) between each contact and its respective isolation is at least twice as large as the spacing (121) between each contact and the gate.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: December 21, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Charvaka Duvvury, Kwang-Hoon Oh
  • Publication number: 20040178453
    Abstract: An MOS transistor in the surface of a semiconductor substrate (180) of a first conductivity type, which has a grid of isolations (171) in the surface, each grid unit surrounding a rectangular semiconductor island (102). Each island contains three parallel regions of the opposite conductivity type: the center region (104) is operable as the transistor drain and the two other regions (103 and 105), abutting the isolations, are operable as transistor sources. Transistor gates (106 and 107) are between the parallel regions, completing the formation of two transistors having one common drain. Electrical contacts (108) are placed on both source regions and the drain region. The source contacts are placed so that the spacing (120) between each contact and its respective isolation is at least twice as large as the spacing (121) between each contact and the gate.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 16, 2004
    Inventors: Charvaka Duvvury, Kwang-Hoon Oh
  • Patent number: 6781204
    Abstract: An MOS transistor in the surface of a semiconductor substrate (180) of a first conductivity type, which has a grid of isolations (171) in the surface, each grid unit surrounding a rectangular substrate island (102). Each island contains two parallel regions of the opposite conductivity type: one region (174) is operable as the transistor drain and the other region (173) is operable as the transistor drain, each region abutting the isolation. A transistor gate (105) is between the parallel regions, completing the formation of a transistor. Electrical contacts (106) are placed on the source region (173) so that the spacing (120) between each contact and the adjacent isolation is at least twice as large as the spacing (121) between each contact and the gate. A plurality of these islands are interconnected to form a multi-finger MOS transistor.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: August 24, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Charvaka Duvvury, Kwang-Hoon Oh