Patents by Inventor Bo-Mook Chung

Bo-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
  • Publication number: 20240015885
    Abstract: The present invention relates to a metal foil having a rough surface, a carrier-attached metal foil including the metal foil, and a printed circuit board manufactured using the metal foil. The rough surface is naturally formed during formation of the metal foil. The formation of the rough surface allows the metal foil to have a high adhesive strength to an insulating resin substrate and enables the manufacture of a printed circuit board with improved efficiency.
    Type: Application
    Filed: December 10, 2021
    Publication date: January 11, 2024
    Inventors: Sung Wook CHUN, Bo Mook CHUNG, Dea Geun KIM, Myong Hwan PARK, Nak Eun KO, Ju Yong SIM
  • Publication number: 20230203693
    Abstract: The present invention relates to a surface modifier for electrolytic nickel plating including at least one carboxyl group-containing compound and a nickel electroplating solution including the surface modifier. The use of the nickel electroplating solution according to the present invention enables efficient formation of a plated nickel layer with high surface roughness and mattness even without performing strong electrolysis, unlike in the prior art.
    Type: Application
    Filed: March 22, 2021
    Publication date: June 29, 2023
    Inventors: Sung Wook CHUN, Bo Mook CHUNG, Dea Geun KIM, Jong II Kim, Jinseok KANG
  • Publication number: 20230020180
    Abstract: The present invention relates to a carrier foil-attached metal foil including a release layer having a specific composition and structure, a method of manufacturing the carrier foil-attached metal foil, and a laminate for forming a printed circuit board including the carrier foil-attached metal foil. The laminate for forming a printed circuit board according to the present invention comprises the carrier foil-attached metal foil, so that a defect rate can be minimized.
    Type: Application
    Filed: October 15, 2020
    Publication date: January 19, 2023
    Inventors: Hyun Woo JEON, Bo Mook CHUNG, Sung Wook CHUN
  • Patent number: 11499233
    Abstract: Provided is a plating lamination technology for providing a highly adhesive inner layer of a printed circuit board. The plating lamination technology is effective in providing an electroless plated laminate, including a non-etched/low-roughness pretreated laminate or a low-roughness copper foil, and a printed circuit board including the plated laminate.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: November 15, 2022
    Assignee: YMT CO., LTD.
    Inventors: Sung Wook Chun, Bo Mook Chung, Myong Whan Park
  • Publication number: 20210017650
    Abstract: Provided is a plating lamination technology for providing a highly adhesive inner layer of a printed circuit board. The plating lamination technology is effective in providing an electroless plated laminate, including a non-etched/low-roughness pretreated laminate or a low-roughness copper foil, and a printed circuit board including the plated laminate.
    Type: Application
    Filed: October 14, 2019
    Publication date: January 21, 2021
    Inventors: Sung Wook CHUN, Bo Mook CHUNG, Myong Whan PARK
  • Patent number: 9249319
    Abstract: The present invention relates to a liquid additive for etching silicon nitride and silicon oxide layers, a metal ink including the same for forming silicon solar cell electrodes and a method for manufacturing silicon solar cell electrodes. More particularly, it relates to a liquid additive including metal nitrate, metal acetate, or hydrates thereof and a metal ink for forming silicon solar cell electrodes, mixed with the liquid additive and a metal. Further, it relates to a method for manufacturing silicon solar cell electrodes comprising a one-step non-contact printing for etching of a silicon nitride layer or silicon oxide layer and forming electrodes.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: February 2, 2016
    Assignee: Korea University Research and Business Foundation
    Inventors: Joo-Youl Huh, Hyun-Gang Kim, Bo-Mook Chung, Sung-Bin Cho
  • Publication number: 20110318870
    Abstract: The present invention relates to a liquid additive for etching silicon nitride and silicon oxide layers, a metal ink including the same for forming silicon solar cell electrodes and a method for manufacturing silicon solar cell electrodes. More particularly, it relates to a liquid additive including metal nitrate, metal acetate, or hydrates thereof and a metal ink for forming silicon solar cell electrodes, mixed with the liquid additive and a metal. Further, it relates to a method for manufacturing silicon solar cell electrodes comprising a one-step non-contact printing for etching of a silicon nitride layer or silicon oxide layer and forming electrodes.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 29, 2011
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Joo-Youl Huh, Hyun-Gang Kim, Bo-Mook Chung, Sung-Bin Cho