Patents by Inventor Tae Yeon Seong

Tae Yeon Seong 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: 11961750
    Abstract: A magnetic transfer apparatus includes: a magnetomotive force source providing magnetic flux, a first magnetic flux distribution circuit connected to one end of the magnetomotive force source, having a single input terminal and a plurality of output terminals, and distributing the magnetic flux, and a second magnetic flux distribution circuit connected to the other end of the magnetomotive force source, having a single output terminal and a plurality of input terminals, and collecting the distributed magnetic flux. The output terminals of the first magnetic flux distribution circuit are disposed to be adjacent to each other to form a pair with the input terminals of the second magnetic flux distribution circuit.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: April 16, 2024
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Tae-Yeon Seong, Da-Hoon Lee, Jong-Ho Kim
  • Publication number: 20220406946
    Abstract: Disclosed are a multilayer-channel thin-film transistor and a method of fabricating the same. More particularly, a multilayer-channel thin-film transistor, including: a first channel layer formed on a substrate; a first source electrode and first drain electrode formed on the first channel layer; a first gate insulating film formed on the first channel layer, the first source electrode and the first drain electrode; a gate electrode formed on the first gate insulating film; a second gate insulating film formed on the gate electrode; a second channel layer formed on the second gate insulating film; and a second source electrode and second drain electrode formed on the second channel layer, wherein the first source electrode and the second source electrode are electrically connected to each other through a source electrode connection part, and the first drain electrode and the second drain electrode are electrically connected to each other through a drain electrode connection part is disclosed.
    Type: Application
    Filed: November 18, 2020
    Publication date: December 22, 2022
    Inventors: Tae Yeon SEONG, Kwang Ro YUN
  • Publication number: 20220246458
    Abstract: A magnetic transfer apparatus includes: a magnetomotive force source providing magnetic flux, a first magnetic flux distribution circuit connected to one end of the magnetomotive force source, having a single input terminal and a plurality of output terminals, and distributing the magnetic flux, and a second magnetic flux distribution circuit connected to the other end of the magnetomotive force source, having a single output terminal and a plurality of input terminals, and collecting the distributed magnetic flux. The output terminals of the first magnetic flux distribution circuit are disposed to be adjacent to each other to form a pair with the input terminals of the second magnetic flux distribution circuit.
    Type: Application
    Filed: November 29, 2021
    Publication date: August 4, 2022
    Inventors: Tae-Yeon SEONG, Da-Hoon LEE, Jong-Ho KIM
  • Publication number: 20210391501
    Abstract: Disclosed is a group III-V compound-based micro light-emitting diode that includes an optimized passivation layer, and thus, is capable of reducing leakage current in a micro light-emitting diode. More particularly, the micro light-emitting diode includes a passivation layer that includes first and second passivation layers formed using different deposition methods, thereby being capable of efficiently reducing leakage current of sidewalls and thus improving the efficiency of a micro light-emitting diode.
    Type: Application
    Filed: November 30, 2020
    Publication date: December 16, 2021
    Inventors: Tae Yeon SEONG, Da Hoon LEE
  • Patent number: 10403791
    Abstract: A vertical light-emitting diode device and a method of fabricating the same are provided. The device may include a conductive substrate serving as a p electrode, a p-type GaN layer provided on the conductive substrate, an active layer provided on the p-type GaN layer, an n-type GaN layer provided on the active layer, an n electrode pattern provided on the n-type GaN layer, a metal oxide structure filling a plurality of holes formed in the n-type GaN layer, and a seed layer provided on bottom surfaces of the holes and used to as a seed in a crystal growth process of the metal oxide structure.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: September 3, 2019
    Assignee: Korea University Research and Business Foundation
    Inventors: Tae Yeon Seong, Ki Seok Kim, Sung-joo Song
  • Patent number: 10333026
    Abstract: Provided are a lateral light emitting diode device and a method for fabricating the same. The lateral light emitting diode device includes a substrate; an n-type GaN layer disposed on the substrate; an activation layer disposed on the n-type GaN layer; a p-type GaN layer disposed on the activation layer, a plurality of holes being formed in the p-type GaN layer; a current spreading layer disposed on the p-type GaN layer; a p-electrode disposed on the current spreading layer; a seed layer disposed on bottom surfaces of the plurality of holes; metal oxide structures grown on the seed layer in a crystalline state to fill the plurality of holes; and an n-electrode disposed on the n-type GaN layer exposed by removing portions of the current spreading layer, the p-type GaN layer, the activation layer, and the n-type GaN layer.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: June 25, 2019
    Assignee: Korea University Research and Business Foundation
    Inventors: Tae Yeon Seong, Ki Seok Kim, Sung-joo Song
  • Patent number: 10263157
    Abstract: A light-emitting diode device may include a conductive substrate, a metal reflection layer provided on the conductive substrate, a transparent insulating layer provided on the metal reflection layer, an n ohmic contact plug provided in a lower portion of each of through holes formed in the transparent insulating layer, an n-type gallium arsenide (GaAs) plug provided in an upper portion of the through hole, an n cladding layer provided on the transparent insulating layer, an active layer provided on the n cladding layer, a p cladding layer provided on the active layer, a p-type GaP window layer provided on the p cladding layer, a p ohmic contact pattern provided on the p-type GaP window layer, a transparent conductive metal oxide pattern provided on the p ohmic contact layer, and a p electrode pad provided on the transparent conductive metal oxide.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: April 16, 2019
    Assignee: Korea University Research and Business Foundation
    Inventors: Tae Yeon Seong, Dae-Hyun Kim, Byoungjun Choi
  • Patent number: 10181550
    Abstract: A lateral light emitting diode device includes: a substrate; an n-type GaN layer disposed on the substrate; an activation layer disposed on the n-type GaN layer; a p-type GaN layer disposed on the activation layer; a current spreading layer disposed on the p-type GaN layer; a p-electrode disposed on the current spreading layer; a MESA region formed by removing portions of the current spreading layer, the p-type GaN layer, the activation layer, and the n-type GaN layer; a transparent window layer disposed on the n-type GaN layer in the entire or part of the MESA region; a plurality of contact plugs which is in contact with the n-type GaN layer through the transparent window layer; and an n-electrode disposed on the transparent window layer to connect the plurality of contact plugs to each other.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: January 15, 2019
    Assignee: Korea University Research and Business Foundation
    Inventors: Tae Yeon Seong, Ki Seok Kim, Hwan Kyo Kim, Dae-Hyun Kim
  • Patent number: 10177279
    Abstract: Provided are a horizontal light emitting diode (LED) device and a method for fabricating the same. The horizontal LED device includes a sapphire substrate; an n-type GaN layer disposed on the sapphire substrate; an activation layer disposed on the n-type GaN layer; a p-type GaN layer disposed on the activation layer; a current spreading layer disposed on the p-type GaN layer; a p-electrode disposed on the current spreading layer; a plurality of holes exposing the n-type GaN layer through the current spreading layer, the p-type GaN layer, and activation layer; and an n-electrode disposed on the exposed n-type GaN layer and being in ohmic contact with the exposed n-type GaN layer at a plurality of positions on bottom surfaces of the plurality of holes.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: January 8, 2019
    Assignee: Korea University Research and Business Foundation
    Inventors: Tae Yeon Seong, Ki Seok Kim, Junyong Jin
  • Patent number: 9978911
    Abstract: Provided is a GaN light-emitting diode (LED) device. The LED device may include a substrate, an n-type GaN layer on the substrate, an active layer on the n-type GaN layer, a p-type GaN layer on the active layer, a current spreading layer including a transparent conductive metal oxide material on the p-type GaN layer, a plurality of upper current injection electrodes provided on the current spreading layer to be spaced apart from each other, an upper electrode pattern extending to cover the upper current injection electrodes, and an upper electrode pad electrically connected to the upper electrode pattern. The upper electrode pattern may include first and second upper electrode patterns, which are sequentially stacked and are a silver or silver alloy thin layer and a transparent conductive metal oxide thin layer, respectively.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: May 22, 2018
    Assignee: Korea University Research and Business Foundation
    Inventors: Tae Yeon Seong, Jee-Yun Lee, Dae-Hyun Kim, Ki Seok Kim
  • Publication number: 20180026162
    Abstract: A light-emitting diode device may include a conductive substrate, a metal reflection layer provided on the conductive substrate, a transparent insulating layer provided on the metal reflection layer, an n ohmic contact plug provided in a lower portion of each of through holes formed in the transparent insulating layer, an n-type gallium arsenide (GaAs) plug provided in an upper portion of the through hole, an n cladding layer provided on the transparent insulating layer, an active layer provided on the n cladding layer, a p cladding layer provided on the active layer, a p-type GaP window layer provided on the p cladding layer, a p ohmic contact pattern provided on the p-type GaP window layer, a transparent conductive metal oxide pattern provided on the p ohmic contact layer, and a p electrode pad provided on the transparent conductive metal oxide.
    Type: Application
    Filed: June 21, 2017
    Publication date: January 25, 2018
    Applicant: Korea University Research and Business Foundation
    Inventors: Tae Yeon SEONG, Dae-Hyun KIM, Byoungjun CHOI
  • Publication number: 20180019378
    Abstract: A lateral light emitting diode device includes: a substrate; an n-type GaN layer disposed on the substrate; an activation layer disposed on the n-type GaN layer; a p-type GaN layer disposed on the activation layer; a current spreading layer disposed on the p-type GaN layer; a p-electrode disposed on the current spreading layer; a MESA region formed by removing portions of the current spreading layer, the p-type GaN layer, the activation layer, and the n-type GaN layer; a transparent window layer disposed on the n-type GaN layer in the entire or part of the MESA region; a plurality of contact plugs which is in contact with the n-type GaN layer through the transparent window layer; and an n-electrode disposed on the transparent window layer to connect the plurality of contact plugs to each other.
    Type: Application
    Filed: June 20, 2017
    Publication date: January 18, 2018
    Applicant: Korea University Research and Business Foundation
    Inventors: Tae Yeon SEONG, Ki Seok KIM, Hwan Kyo KIM, Dae-Hyun KIM
  • Publication number: 20180006188
    Abstract: Provided are a lateral light emitting diode device and a method for fabricating the same. The lateral light emitting diode device includes a substrate; an n-type GaN layer disposed on the substrate; an activation layer disposed on the n-type GaN layer; a p-type GaN layer disposed on the activation layer, a plurality of holes being formed in the p-type GaN layer; a current spreading layer disposed on the p-type GaN layer; a p-electrode disposed on the current spreading layer; a seed layer disposed on bottom surfaces of the plurality of holes; metal oxide structures grown on the seed layer in a crystalline state to fill the plurality of holes; and an n-electrode disposed on the n-type GaN layer exposed by removing portions of the current spreading layer, the p-type GaN layer, the activation layer, and the n-type GaN layer.
    Type: Application
    Filed: June 21, 2017
    Publication date: January 4, 2018
    Applicant: Korea University Research and Business Foundation
    Inventors: Tae Yeon SEONG, Ki Seok KIM, Sung-joo SONG
  • Publication number: 20180006191
    Abstract: A vertical light-emitting diode device and a method of fabricating the same are provided. The device may include a conductive substrate serving as a p electrode, a p-type GaN layer provided on the conductive substrate, an active layer provided on the p-type GaN layer, an n-type GaN layer provided on the active layer, an n electrode pattern provided on the n-type GaN layer, a metal oxide structure filling a plurality of holes formed in the n-type GaN layer, and a seed layer provided on bottom surfaces of the holes and used to as a seed in a crystal growth process of the metal oxide structure.
    Type: Application
    Filed: June 21, 2017
    Publication date: January 4, 2018
    Applicant: Korea University Research and Business Foundation
    Inventors: Tae Yeon SEONG, Ki Seok KIM, Sung-joo SONG
  • Publication number: 20170358714
    Abstract: Provided is a GaN light-emitting diode (LED) device. The LED device may include a substrate, an n-type GaN layer on the substrate, an active layer on the n-type GaN layer, a p-type GaN layer on the active layer, a current spreading layer including a transparent conductive metal oxide material on the p-type GaN layer, a plurality of upper current injection electrodes provided on the current spreading layer to be spaced apart from each other, an upper electrode pattern extending to cover the upper current injection electrodes, and an upper electrode pad electrically connected to the upper electrode pattern. The upper electrode pattern may include first and second upper electrode patterns, which are sequentially stacked and are a silver or silver alloy thin layer and a transparent conductive metal oxide thin layer, respectively.
    Type: Application
    Filed: May 30, 2017
    Publication date: December 14, 2017
    Applicant: Korea University Research and Business Foundation
    Inventors: Tae Yeon SEONG, Jee-Yun LEE, Dae-Hyun KIM, Ki Seok KIM
  • Publication number: 20170352784
    Abstract: Provided are a horizontal light emitting diode (LED) device and a method for fabricating the same. The horizontal LED device includes a sapphire substrate; an n-type GaN layer disposed on the sapphire substrate; an activation layer disposed on the n-type GaN layer; a p-type GaN layer disposed on the activation layer; a current spreading layer disposed on the p-type GaN layer; a p-electrode disposed on the current spreading layer; a plurality of holes exposing the n-type GaN layer through the current spreading layer, the p-type GaN layer, and activation layer; and an n-electrode disposed on the exposed n-type GaN layer and being in ohmic contact with the exposed n-type GaN layer at a plurality of positions on bottom surfaces of the plurality of holes.
    Type: Application
    Filed: May 30, 2017
    Publication date: December 7, 2017
    Applicant: Korea University Research and Business Foundation
    Inventors: Tae Yeon SEONG, Ki Seok KIM, Junyong JIN
  • Patent number: 9224910
    Abstract: A method may be provided for preparing a semiconductor light-emitting device. The method may include: preparing a first wafer in which a semiconductor multi-layered light-emitting structure is disposed on an upper part of an initial substrate; preparing a second wafer which is a supporting substrate; bonding the second wafer on an upper part of the first wafer; separating the initial substrate of the first wafer from a result of the bonding; and fabricating a single-chip by severing a result of the passivation. Other embodiments may be provided.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: December 29, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Tae Yeon Seong
  • Patent number: 8946745
    Abstract: The present invention is related to a supporting substrate for manufacturing vertically-structured semiconductor light emitting device and a vertically-structured semiconductor light emitting device using the same, which minimize damage and breaking of a multi-layered light-emitting structure thin film separated from a sapphire substrate during the manufacturing process, thereby improving the whole performance of the semiconductor light emitting device.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: February 3, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Tae Yeon Seong
  • Patent number: 8932890
    Abstract: The present invention relates to a vertical-structure semiconductor light emitting device and a production method thereof, more specifically, to a vertical-structure semiconductor light emitting device having a high-performance heat sink support comprising a thick metal film or metal foil. The vertical-structure semiconductor light emitting element produced in accordance with the present invention constitutes a highly reliable light emitting element with absolutely no thermal or mechanical damage since it has the high performance heatsink support and so suffers not fine micro-cracking and can be freely subjected to heat treatment and to post-processing including of a side-surface passivation thin film.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: January 13, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Tae Yeon Seong
  • Publication number: 20140377895
    Abstract: A method may be provided for preparing a semiconductor light-emitting device. The method may include: preparing a first wafer in which a semiconductor multi-layered light-emitting structure is disposed on an upper part of an initial substrate; preparing a second wafer which is a supporting substrate; bonding the second wafer on an upper part of the first wafer; separating the initial substrate of the first wafer from a result of the bonding; and fabricating a single-chip by severing a result of the passivation. Other embodiments may be provided.
    Type: Application
    Filed: September 10, 2014
    Publication date: December 25, 2014
    Inventor: Tae Yeon SEONG