Patents by Inventor Sung Mook Chung

Sung Mook Chung 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: 20240140905
    Abstract: The present invention relates to a leveler capable of efficiently filling the inside of via holes formed during the manufacturing process of a printed circuit board, and an electroplating composition comprising the same. When via holes on a substrate are filled with the electroplating composition according to the present invention, the via holes can be filled in a relatively short time while minimizing the formation of dimples or voids.
    Type: Application
    Filed: June 27, 2023
    Publication date: May 2, 2024
    Inventors: Dea Geun KIM, Sung Wook CHUN, Bo Mook CHUNG, Nak Eun KO
  • Publication number: 20240132441
    Abstract: The present invention relates to a leveling agent and an electrolytic composition comprising the same. When the via hole in the substrate is filled with the electrolytic composition according to the present invention, the via hole can be filled within a relatively short time while minimizing the formation of dimples or voids.
    Type: Application
    Filed: July 29, 2022
    Publication date: April 25, 2024
    Inventors: Sung Wook CHUN, Bo Mook CHUNG, Dea Geun KIM, Nak Eun KO, Ju Yong SIM
  • Publication number: 20240138075
    Abstract: The present invention relates to a release layer for a metal foil with carrier and a metal foil with carrier including the release layer. The release layer is designed for easy removal of the carrier and includes one or more nitrogenous heterocyclic compounds and one or more inorganic compounds containing at least one metal selected from the group consisting of nickel, molybdenum, cobalt, phosphorus, manganese, and iron.
    Type: Application
    Filed: December 10, 2021
    Publication date: April 25, 2024
    Inventors: Sung Wook CHUN, Bo Mook CHUNG, Dea Geun KIM, Myong Hwan PARK, Nak Eun KO, Ju Young SIM
  • Publication number: 20240133039
    Abstract: The present invention relates to a leveling agent and an electrolytic composition comprising the same. When the via hole in the substrate is filled with the electrolytic composition according to the present invention, the via hole can be filled within a relatively short time while minimizing the formation of dimples or voids.
    Type: Application
    Filed: July 29, 2022
    Publication date: April 25, 2024
    Inventors: Sung Wook CHUN, Bo Mook CHUNG, Dea Geun KIM, Nak Eun KO, Ju Yong SIM
  • Patent number: 8809857
    Abstract: Provided are a thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer and a method of fabricating the same. The thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer exhibits significantly improved mobility and increased stability at a high temperature.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: August 19, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Seok Cheong, Sung Mook Chung, Jun Yong Bak
  • Publication number: 20140008650
    Abstract: Provided are a thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer and a method of fabricating the same. The thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer exhibits significantly improved mobility and increased stability at a high temperature.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 9, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Woo Seok CHEONG, Sung Mook CHUNG, Jun Yong BAK
  • Patent number: 8572546
    Abstract: Methods of modeling a transistor are provided. The method includes the steps of (a) extracting reference mobility values of a channel layer of a transistor including a gate electrode, a source region and a drain region using a reference gate voltage, a reference drain current and a reference drain voltage, (b) fitting a mobility function including model parameters on the reference mobility values to extract the model parameters, and (c) putting the extracted model parameters into a drain current modeling function to calculate a drain current flowing through the channel layer between the drain region and the source region under a bias condition defined by an arbitrary gate voltage applied to the gate electrode and an arbitrary drain voltage applied to the drain region. Related apparatuses are also provided.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: October 29, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jaeheon Shin, Woo-Seok Cheong, Chi-Sun Hwang, Sung Mook Chung
  • Patent number: 8563356
    Abstract: Provided are a thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer and a method of fabricating the same. The thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer exhibits significantly improved mobility and increased stability at a high temperature.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: October 22, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Seok Cheong, Sung Mook Chung, Jun Yong Bak
  • Publication number: 20120298985
    Abstract: Provided are a thin film transistor able to increase or maximize productivity and production yield, and a method of fabricating the same. The method of fabricating the thin film transistor includes forming a gate electrode on a substrate, forming a gate insulating layer on the gate electrode, forming an active layer formed of an amorphous oxide semiconductor on the gate insulating layer, and respectively forming a source electrode and a drain electrode on both sides of the active layer above the gate electrode. The amorphous oxide semiconductor of the active layer may be doped with a metal oxide dielectric.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 29, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Mook CHUNG, Woo-Seok Cheong, Jaeheon Shin, Chan Hwa Hong
  • Publication number: 20120297351
    Abstract: Methods of modeling a transistor are provided. The method includes the steps of (a) extracting reference mobility values of a channel layer of a transistor including a gate electrode, a source region and a drain region using a reference gate voltage, a reference drain current and a reference drain voltage, (b) fitting a mobility function including model parameters on the reference mobility values to extract the model parameters, and (c) putting the extracted model parameters into a drain current modeling function to calculate a drain current flowing through the channel layer between the drain region and the source region under a bias condition defined by an arbitrary gate voltage applied to the gate electrode and an arbitrary drain voltage applied to the drain region. Related apparatuses are also provided.
    Type: Application
    Filed: February 13, 2012
    Publication date: November 22, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jaeheon SHIN, Woo-Seok Cheong, Chi-Sun Hwang, Sung Mook Chung
  • Publication number: 20120032186
    Abstract: Provided is a white organic light emitting device (OLED), including: a first electrode formed on a substrate; a hole transport layer formed on the first electrode; an emission layer formed on the hole transport layer; an electron transport layer formed on the emission layer; and an color control layer formed on at least one of the hole transport layer, the emission layer and the electron transport layer, and emitting green and/or red by energy transfer from the emission layer. The white OLED emits red, green and blue light with high efficiency, has excellent color reproducibility and a high color reproduction index.
    Type: Application
    Filed: September 22, 2011
    Publication date: February 9, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jeong Ik LEE, Hye Yong CHU, Lee Mi DO, Sang Hee PARK, Chi Sun HWANG, Yong Suk YANG, Sung Mook CHUNG
  • Patent number: 8071434
    Abstract: Provided is a method of fabricating a thin film transistor including source and drain electrodes, a novel channel layer, a gate insulating layer, and a gate electrode, which are formed on a substrate. The method includes the steps of forming the channel layer using an oxide semiconductor doped with boron; and patterning the channel layer. The channel layer formed is an oxide semiconductor thin film doped with boron. The electrical characteristics and high temperature stability of the thin film transistor are improved remarkably.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: December 6, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Seok Cheong, Sung Mook Chung, Min Ki Ryu, Chi Sun Hwang, Hye Yong Chu
  • Publication number: 20110140097
    Abstract: Provided are a thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer and a method of fabricating the same. The thin film transistor in which an oxide semiconductor combined with a nitride containing boron or aluminum is applied to a channel layer exhibits significantly improved mobility and increased stability at a high temperature.
    Type: Application
    Filed: September 21, 2010
    Publication date: June 16, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Woo Seok CHEONG, Sung Mook Chung, Jun Yong Bak
  • Patent number: 7952273
    Abstract: An organic light emitting diode (OLED) device is provided. The OLED device includes: a substrate; an anode formed on the substrate; a first organic thin layer formed on the anode; an organic emission layer formed on the first organic thin layer; a second organic thin layer formed on the organic emission layer; and a cathode formed on the second organic thin layer, wherein the first and second organic thin layers are formed in a single layer or a multi-layer, and at least a part of the first or second organic thin layer is doped with or formed of an insulator. The OLED device provides excellent durability, long life-time, and increased luminous efficiency by balanced charge injection caused by doping or stacking the insulator into or on the organic thin layer.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: May 31, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Lee Mi Do, Kyu Ha Baek, Jeong Ik Lee, Yong Suk Yang, Sung Mook Chung, Hye Yong Chu, Sang Hee Park, Chi Sun Hwang
  • Publication number: 20100187552
    Abstract: Provided are a hybrid white organic light emitting diode (OLED) and a method of fabricating the same. A HOMO level difference between a fluorescent emission layer and an electron transport layer in an organic emission layer (OLED) becomes higher than that between the other layers or a LUMO level difference between a fluorescent emission layer and a hole transport layer is higher than that between the other layers, so that a recombination region is restricted to a part of an emission layer to obtain high-efficiency fluorescent light emission. In addition, triplet excitons that are not used in a fluorescent emission layer are transferred to an auxiliary emission layer formed to be spaced apart from a recombination region by a predetermined distance to emit light in a different color from the fluorescent emission layer, so that both singlet and triplet excitons formed in the OLED are used to obtain high-efficiency white light emission.
    Type: Application
    Filed: August 21, 2008
    Publication date: July 29, 2010
    Applicant: Electronic and Telecommunications Research Institute
    Inventors: Jeong Ik Lee, Hye Yong Chu, Sung Mook Chung, Lee Mi Do, Sang Hee Park, Chi Sun Hwang
  • Publication number: 20100155716
    Abstract: Provided are a thin film transistor, to which a boron-doped oxide semiconductor thin film is applied as a channel layer, and a method of fabricating the same. The thin film transistor includes source and drain electrodes, a channel layer, a gate insulating layer, and a gate electrode, which are formed on a substrate. The channel layer is an oxide semiconductor thin film doped with boron. Therefore, it is possible to remarkably improve electrical characteristics and high temperature stability of the thin film transistor.
    Type: Application
    Filed: September 16, 2009
    Publication date: June 24, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Woo Seok CHEONG, Sung Mook CHUNG, Min Ki RYU, Chi Sun HWANG, Hye Yong CHU
  • Publication number: 20100006837
    Abstract: Provided are a composition for an oxide semiconductor thin film, a field effect transistor using the same and a method of fabricating the field effect transistor. The composition includes an aluminum oxide, a zinc oxide, an indium oxide and a tin oxide. The thin film formed of the composition is in amorphous phase. The field effect transistor having an active layer formed of the composition can have an improved electrical characteristic and be fabricated by a low temperature process.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 14, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Doo Hee Cho, Sang Hee Park, Chi Sun Hwang, Hye Yong Chu, Kyoung Ik Cho, Shin Hyuk Yang, Chun Won Byun, Eun Suk Park, Oh Sang Kwon, Min Ki Ryu, Jae Heon Shin, Woo Seok Cheong, Sung Mook Chung, Jeong Ik Lee
  • Publication number: 20080136321
    Abstract: An organic light emitting diode (OLED) device is provided. The OLED device includes: a substrate; an anode formed on the substrate; a first organic thin layer formed on the anode; an organic emission layer formed on the first organic thin layer; a second organic thin layer formed on the organic emission layer; and a cathode formed on the second organic thin layer, wherein the first and second organic thin layers are formed in a single layer or a multi-layer, and at least a part of the first or second organic thin layer is doped with or formed of an insulator. The OLED device provides excellent durability, long life-time, and increased luminous efficiency by balanced charge injection caused by doping or stacking the insulator into or on the organic thin layer.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 12, 2008
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Lee Mi DO, Kyu Ha Baek, Jeong Ik Lee, Yong Suk Yang, Sung Mook Chung, Hye Yong Chu, Sang Hee Park, Chi Sun Hwang
  • Patent number: 7337089
    Abstract: Provided is an apparatus for measuring a picture and a lifetime of a display panel including: a chamber having at least one display panel for measurement disposed therein, and for uniformly maintaining temperature and humidity conditions of an inner portion; at least one camera installed in the chamber to obtain image signals of the display panel; a bias supply and measurement part for providing pulse bias voltage and current required to measure depending on control signals, and measuring the voltage and current to convert into digital data when the display panel is driven; a converter for converting the image signals obtained through the camera into digital data; and a control and data processing part for generating parameters by receiving the digital data from the bias supply and measurement part and the converter, and analyzing a lifetime of the display panel using the parameters.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: February 26, 2008
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Suk Yang, Hye Yong Chu, Jeong Ik Lee, Ji Young Oh, Sang Hee Park, Chi Sun Hwang, Lee Mi Do, Sung Mook Chung, Mi Kyung Kim
  • Publication number: 20060049768
    Abstract: Provided is an apparatus for measuring a picture and a lifetime of a display panel including: a chamber having at least one display panel for measurement disposed therein, and for uniformly maintaining temperature and humidity conditions of an inner portion; at least one camera installed in the chamber to obtain image signals of the display panel; a bias supply and measurement part for providing pulse bias voltage and current required to measure depending on control signals, and measuring the voltage and current to convert into digital data when the display panel is driven; a converter for converting the image signals obtained through the camera into digital data; and a control and data processing part for generating parameters by receiving the digital data from the bias supply and measurement part and the converter, and analyzing a lifetime of the display panel using the parameters.
    Type: Application
    Filed: July 7, 2005
    Publication date: March 9, 2006
    Inventors: Yong Suk Yang, Hye Yong Chu, Jeong Ik Lee, Ji Young Oh, Sang Hee Park, Chi Sun Hwang, Lee Mi Do, Sung Mook Chung, Mi Kyung Kim