Patents by Inventor Ho-cheol Jang

Ho-cheol Jang 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: 11936318
    Abstract: Charging system and method using a motor driving system are proposed. The charging system includes a battery, an inverter to which D.C. power stored in the battery is applied, including a plurality of legs each including two switching elements, a motor including a plurality of coils of which first ends are respectively connected to connection nodes of the switching elements of each of the plurality of legs, and second ends are connected to each other to form a neutral point, and an inverter driving part configured to control switching of the switching elements, so that switching speeds of the switching elements are different for each mode of a motor driving mode and a charging mode so as to change magnitude of charging voltage supplied to the neutral point of the motor and to output the charging voltage to the battery.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: March 19, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Ji Woong Jang, Sang Cheol Shin, Yoo Jong Lee, Ki Jong Lee, Ho Tae Chun
  • Patent number: 11922962
    Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: March 5, 2024
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Seungkwon Beack, Tae Jin Lee, Min Je Kim, Kyeongok Kang, Dae Young Jang, Jeongil Seo, Jin Woo Hong, Chieteuk Ahn, Ho Chong Park, Young-cheol Park
  • Publication number: 20230197775
    Abstract: A semiconductor device having a super junction and a method of manufacturing the semiconductor device capable of obtaining a high breakdown voltage are provided, whereby charge balance of the super junction is further accurately controlled in the semiconductor device that is implemented by an N-type pillar and a P-type pillar. The semiconductor device includes a semiconductor substrate; and a blocking layer including a first conductive type pillar and a second conductive type pillar that extend in a vertical direction on the semiconductor substrate and that are alternately arrayed in a horizontal direction, wherein, in the blocking layer, a density profile of a first conductive type dopant may be uniform in the horizontal direction, and the density profile of the first conductive type dopant may vary in the vertical direction.
    Type: Application
    Filed: February 15, 2023
    Publication date: June 22, 2023
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jae-gil LEE, Jin-myung KIM, Kwang-won LEE, Kyoung-deok KIM, Ho-cheol JANG
  • Patent number: 11588016
    Abstract: A semiconductor device having a super junction and a method of manufacturing the semiconductor device capable of obtaining a high breakdown voltage are provided, whereby charge balance of the super junction is further accurately controlled in the semiconductor device that is implemented by an N-type pillar and a P-type pillar. The semiconductor device includes a semiconductor substrate; and a blocking layer including a first conductive type pillar and a second conductive type pillar that extend in a vertical direction on the semiconductor substrate and that are alternately arrayed in a horizontal direction, wherein, in the blocking layer, a density profile of a first conductive type dopant may be uniform in the horizontal direction, and the density profile of the first conductive type dopant may vary in the vertical direction.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: February 21, 2023
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jae-gil Lee, Jin-myung Kim, Kwang-won Lee, Kyoung-deok Kim, Ho-cheol Jang
  • Publication number: 20230047928
    Abstract: In a method for controlling an operation of a sphere type shifting apparatus, and according to an exemplary embodiment of the present disclosure, it is possible to prevent a sphere mechanism from being separated from a rotation completion location upon rotation operation of the sphere mechanism including a shifting unit provided on a hemispherical one side thereof and a design unit provided on a hemispherical other side thereof, preventing occurrence of clearance of the sphere mechanism, and to terminate an operation of a motor as necessary when the sphere mechanism cannot reach the rotation completion location due to sticking thereof or foreign substances stuck thereto upon rotation operation of the sphere mechanism, preventing damage to parts.
    Type: Application
    Filed: June 6, 2022
    Publication date: February 16, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Min Gi SONG, Ki Young SONG, Hee En ZOO, Yong Min CHAE, Ho Cheol JANG
  • Publication number: 20220005924
    Abstract: A semiconductor device having a super junction and a method of manufacturing the semiconductor device capable of obtaining a high breakdown voltage are provided, whereby charge balance of the super junction is further accurately controlled in the semiconductor device that is implemented by an N-type pillar and a P-type pillar. The semiconductor device includes a semiconductor substrate; and a blocking layer including a first conductive type pillar and a second conductive type pillar that extend in a vertical direction on the semiconductor substrate and that are alternately arrayed in a horizontal direction, wherein, in the blocking layer, a density profile of a first conductive type dopant may be uniform in the horizontal direction, and the density profile of the first conductive type dopant may vary in the vertical direction.
    Type: Application
    Filed: September 16, 2021
    Publication date: January 6, 2022
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jae-gil LEE, Jin-myung KIM, Kwang-won LEE, Kyoung-deok KIM, Ho-cheol JANG
  • Patent number: 11133379
    Abstract: A semiconductor device having a super junction and a method of manufacturing the semiconductor device capable of obtaining a high breakdown voltage are provided, whereby charge balance of the super junction is further accurately controlled in the semiconductor device that is implemented by an N-type pillar and a P-type pillar. The semiconductor device includes a semiconductor substrate; and a blocking layer including a first conductive type pillar and a second conductive type pillar that extend in a vertical direction on the semiconductor substrate and that are alternately arrayed in a horizontal direction, wherein, in the blocking layer, a density profile of a first conductive type dopant may be uniform in the horizontal direction, and the density profile of the first conductive type dopant may vary in the vertical direction.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: September 28, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jae-gil Lee, Jin-myung Kim, Kwang-won Lee, Kyoung-deok Kim, Ho-cheol Jang
  • Publication number: 20200127088
    Abstract: A semiconductor device having a super junction and a method of manufacturing the semiconductor device capable of obtaining a high breakdown voltage are provided, whereby charge balance of the super junction is further accurately controlled in the semiconductor device that is implemented by an N-type pillar and a P-type pillar. The semiconductor device includes a semiconductor substrate; and a blocking layer including a first conductive type pillar and a second conductive type pillar that extend in a vertical direction on the semiconductor substrate and that are alternately arrayed in a horizontal direction, wherein, in the blocking layer, a density profile of a first conductive type dopant may be uniform in the horizontal direction, and the density profile of the first conductive type dopant may vary in the vertical direction.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jae-gil LEE, Jin-myung KIM, Kwang-won LEE, Kyoung-deok KIM, Ho-cheol JANG
  • Publication number: 20170179225
    Abstract: A semiconductor device having a super junction and a method of manufacturing the semiconductor device capable of obtaining a high breakdown voltage are provided, whereby charge balance of the super junction is further accurately controlled in the semiconductor device that is implemented by an N-type pillar and a P-type pillar. The semiconductor device includes a semiconductor substrate; and a blocking layer including a first conductive type pillar and a second conductive type pillar that extend in a vertical direction on the semiconductor substrate and that are alternately arrayed in a horizontal direction, wherein, in the blocking layer, a density profile of a first conductive type dopant may be uniform in the horizontal direction, and the density profile of the first conductive type dopant may vary in the vertical direction.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 22, 2017
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Jae-gil LEE, Jin-myung KIM, Kwang-won LEE, Kyoung-deok KIM, Ho-cheol JANG
  • Patent number: 9070713
    Abstract: A power semiconductor device includes: a drain region of a first conductive type; a drift region of a first conductive type formed on the drain region; a first body region of a second conductive type formed below an upper surface of the drift region; a second body region of a second conductive type formed below the upper surface of the drift region and in the first body region; a third body region of a second conductive type formed by protruding downwards from a lower end of the first body region; a source region of a first conductive type formed below the upper surface of the drift region and in the first body region; and a gate insulating layer formed on channel regions of the first body region and on the drift region between the first body regions.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: June 30, 2015
    Assignee: Fairchild Korea Semiconductor Ltd.
    Inventors: Jin-myung Kim, Se-woong Oh, Jae-gil Lee, Young-chul Choi, Ho-cheol Jang
  • Publication number: 20140141584
    Abstract: A power semiconductor device includes: a drain region of a first conductive type; a drift region of a first conductive type formed on the drain region; a first body region of a second conductive type formed below an upper surface of the drift region; a second body region of a second conductive type formed below the upper surface of the drift region and in the first body region; a third body region of a second conductive type formed by protruding downwards from a lower end of the first body region; a source region of a first conductive type formed below the upper surface of the drift region and in the first body region; and a gate insulating layer formed on channel regions of the first body region and on the drift region between the first body regions.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: FAIRCHILD KOREA SEMICONDUCTOR LTD.
    Inventors: Jin-myung KIM, Se-woong OH, Jae-gil LEE, Young-chul CHOI, Ho-cheol JANG
  • Patent number: 8716085
    Abstract: A method of fabricating a high-voltage semiconductor device includes the following steps: providing a semiconductor layer; forming a plurality of trenches in the semiconductor layer to define a plurality of pillars of a first conductivity type in the semiconductor layer between adjacent trenches, wherein the trenches extend from a top surface of the semiconductor layer toward a bottom surface of the semiconductor layer; forming a charge compensation layer of a second conductivity type over at least sidewalls of each trench to a predetermined thickness thereby forming a groove in each trench; and substantially filling each groove with a charge compensation plug of the first conductivity type.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: May 6, 2014
    Assignee: Fairchild Korea Semiconductor, Ltd.
    Inventors: Jae-gil Lee, Chang-wook Kim, Ho-cheol Jang, Chong-man Yun
  • Patent number: 8674402
    Abstract: A power semiconductor device includes: a drain region of a first conductive type; a drift region of a first conductive type formed on the drain region; a first body region of a second conductive type formed below an upper surface of the drift region; a second body region of a second conductive type formed below the upper surface of the drift region and in the first body region; a third body region of a second conductive type formed by protruding downwards from a lower end of the first body region; a source region of a first conductive type formed below the upper surface of the drift region and in the first body region; and a gate insulating layer formed on channel regions of the first body region and on the drift region between the first body regions.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: March 18, 2014
    Assignee: Fairchild Korea Semiconductor Ltd.
    Inventors: Jin-myung Kim, Se-woong Oh, Jae-gil Lee, Young-chul Choi, Ho-cheol Jang
  • Publication number: 20120299094
    Abstract: A semiconductor device having a super junction and a method of manufacturing the semiconductor device capable of obtaining a high breakdown voltage are provided, whereby charge balance of the super junction is further accurately controlled in the semiconductor device that is implemented by an N-type pillar and a P-type pillar. The semiconductor device includes a semiconductor substrate; and a blocking layer including a first conductive type pillar and a second conductive type pillar that extend in a vertical direction on the semiconductor substrate and that are alternately arrayed in a horizontal direction, wherein, in the blocking layer, a density profile of a first conductive type dopant may be uniform in the horizontal direction, and the density profile of the first conductive type dopant may vary in the vertical direction.
    Type: Application
    Filed: January 19, 2012
    Publication date: November 29, 2012
    Inventors: Jae-gil LEE, Jin-myung KIM, Kwang-won LEE, Kyoung-deok KIM, Ho-cheol JANG
  • Publication number: 20120261715
    Abstract: A power semiconductor device includes: a drain region of a first conductive type; a drift region of a first conductive type formed on the drain region; a first body region of a second conductive type formed below an upper surface of the drift region; a second body region of a second conductive type formed below the upper surface of the drift region and in the first body region; a third body region of a second conductive type formed by protruding downwards from a lower end of the first body region; a source region of a first conductive type formed below the upper surface of the drift region and in the first body region; and a gate insulating layer formed on channel regions of the first body region and on the drift region between the first body regions.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 18, 2012
    Inventors: Jin-myung KIM, Se-woong OH, Jae-gil LEE, Young-chul CHOI, Ho-cheol JANG
  • Publication number: 20120161274
    Abstract: A superjunction semiconductor device includes an edge p pillar, an active region, and a termination region. The edge p pillar has a rectangular ring shape with rounded corners. The edge p pillar has an outer region surrounding the active region and an inner region on in the sides of the active region. The active region has active p pillars and active n pillars having vertical stripe shapes. The active p pillars and the active n pillars are alternately arranged horizontally in the active region. The termination region includes termination n pillars and termination p pillars alternately arranged around the edge p pillar.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 28, 2012
    Applicant: Fairchild Korea Semiconductor Ltd.
    Inventors: Jae-gil Lee, Jin-young Jung, Ho-cheol Jang, Chong-man Yun
  • Patent number: 8084815
    Abstract: A superjunction semiconductor device includes an edge p pillar, an active region, and a termination region. The edge p pillar has a rectangular ring shape with rounded corners surrounding the active region. The active region includes an active n region and active p pillars having vertical stripe shapes disposed at regular intervals in the active n region. The top and bottom ends of the active p pillars are separated from the edge p pillar. The termination region includes termination n pillars and termination p pillars alternately arranged around the edge p pillar. Surplus p charges that are not used to balance the quantity of p charges and the quantity of n charges among p charges included in the upper and lower parts of the edge p pillar are eliminated or n charges are supplemented to balance the quantity of p charges and the quantity of n charges.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: December 27, 2011
    Assignee: Fairchild Korea Semiconductor Ltd.
    Inventors: Jae-gil Lee, Jin-young Jung, Ho-cheol Jang, Chong-man Yun
  • Publication number: 20110097864
    Abstract: A method of fabricating a high-voltage semiconductor device includes the following steps: providing a semiconductor layer; forming a plurality of trenches in the semiconductor layer to define a plurality of pillars of a first conductivity type in the semiconductor layer between adjacent trenches, wherein the trenches extend from a top surface of the semiconductor layer toward a bottom surface of the semiconductor layer; forming a charge compensation layer of a second conductivity type over at least sidewalls of each trench to a predetermined thickness thereby forming a groove in each trench; and substantially filling each groove with a charge compensation plug of the first conductivity type.
    Type: Application
    Filed: January 5, 2011
    Publication date: April 28, 2011
    Inventors: Jae-gil Lee, Chang-wook Kim, Ho-cheol Jang, Chong-man Yun
  • Patent number: D973030
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: December 20, 2022
    Assignee: DONG WOON ANATECH CO., LTD
    Inventors: Yu-Hwang Lee, Jung-Hyun Eum, Ho-Cheol Jang
  • Patent number: D989013
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: June 13, 2023
    Assignee: DONG WOON ANATECH CO., LTD
    Inventors: Yu-Hwang Lee, Jung-Hyun Eum, Ho-Cheol Jang