Patents by Inventor Sung Wook Chun

Sung Wook Chun 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: 20240136618
    Abstract: An aluminum pouch film for a secondary battery is disclosed. The aluminum pouch film includes an aluminum film layer; an outer resin layer deposited on one surface of the aluminum film layer; and an inner resin layer deposited on the other surface of the aluminum film layer, wherein the inner resin layer comprises a polyolefin resin, an ethylene vinyl alcohol copolymer (EVOH) and a maleic anhydride polypropylene (MAHPP) resin.
    Type: Application
    Filed: December 10, 2021
    Publication date: April 25, 2024
    Applicant: SBTL ADVANCED MATERALS CO., LTD.
    Inventors: Jun Ho SHIM, Sang Wook CHUN, Sung II PARK, Pill Gyu JANG, Soon Sik LEE
  • 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: 20240079688
    Abstract: An aluminum pouch film for a secondary battery is disclosed. The aluminum pouch film contains an aluminum film layer; an outer resin layer laminated on one surface of the aluminum film layer; and an inner resin layer laminated on the other surface of the aluminum film layer. The inner resin layer contains a polyolefin resin, an ethylene vinyl alcohol copolymer (EVOH) and an ionomer resin.
    Type: Application
    Filed: December 10, 2021
    Publication date: March 7, 2024
    Applicant: SBTL ADVANCED MATERIALS CO., LTD.
    Inventors: Jun Ho SHIM, Sang Wook CHUN, Sung II PARK, PillGyu JANG, SoonSik LEE
  • 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
  • Patent number: 11028495
    Abstract: Provided is a method for producing a porous copper foil. The method includes forming a release layer on a metal carrier, growing copper islands on the metal carrier formed with the release layer by electroless copper plating, forming a porous copper thin layer by copper electroplating, and peeling off the porous copper thin layer from the release layer.
    Type: Grant
    Filed: March 18, 2018
    Date of Patent: June 8, 2021
    Assignee: YMT CO., LTD.
    Inventors: Sung Wook Chun, Ik Beom Kim, Seon Gi Jeon, Dae Hoon Lee, Youn Bong Kang, Jun Mo Hong, Hyeong Gyu 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
  • Publication number: 20180282890
    Abstract: Provided is a method for producing a porous copper foil. The method includes forming a release layer on a metal carrier, growing copper islands on the metal carrier formed with the release layer by electroless copper plating, forming a porous copper thin layer by copper electroplating, and peeling off the porous copper thin layer from the release layer.
    Type: Application
    Filed: March 18, 2018
    Publication date: October 4, 2018
    Inventors: Sung Wook Chun, Ik Beom Kim, Seon Gi Jeon, Dae Hoon Lee, Youn Bong Kang, Jun Mo Hong, Hyeong Gyu Park
  • Patent number: 9758889
    Abstract: One embodiment of the present disclosure provides a method for producing a substrate formed with a copper thin layer. The method includes providing a carrier, forming a separation-inducing layer on the surface of the carrier, forming a copper thin layer on the separation-inducing layer, and bonding a core to the copper thin layer.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: September 12, 2017
    Assignee: YMT CO., LTD.
    Inventor: Sung Wook Chun
  • Publication number: 20150327364
    Abstract: One embodiment of the present disclosure provides a method for producing a substrate formed with a copper thin layer. The method includes providing a carrier, forming a separation-inducing layer on the surface of the carrier, forming a copper thin layer on the separation-inducing layer, and bonding a core to the copper thin layer.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 12, 2015
    Applicant: YMT CO., LTD.
    Inventor: Sung Wook CHUN
  • Patent number: 8759986
    Abstract: Provided is a substrate structure including: a base substrate on which a conductive pattern is formed; a first plating layer covering the conductive pattern; and a second plating layer covering the first plating layer, wherein the first plating layer includes an electroless reduction plating layer.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: June 24, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chul Min Lee, Won Hyung Park, Kyung Jin Heo, Dek Gin Yang, Jin Su Yeo, Sung Wook Chun
  • Publication number: 20140098504
    Abstract: Disclosed is an electroplating method for printed circuit board. The method includes: providing a printed circuit board including a circuit pattern, a pad part on which components are mounted, a terminal part for electrical connection to an external device, and a connector part; masking the portion of the printed circuit board other than the terminal part and the connector part; dipping the printed circuit board in a nickel-tungsten alloy plating solution including a water-soluble nickel compound, a water-soluble tungsten compound, a complexing agent, and a ductility improver; forming a nickel-tungsten alloy plated layer on each of the exposed portions of the terminal part and the connector part by direct-current (DC) electroplating; and forming a gold-containing plated layer on the nickel-tungsten alloy plated layer by DC electroplating.
    Type: Application
    Filed: November 16, 2012
    Publication date: April 10, 2014
    Applicant: YMT CO., LTD.
    Inventors: Sung-Wook CHUN, Jung Il Kim, Young Kuk Kim
  • Publication number: 20120171432
    Abstract: Provided is a substrate structure including: a base substrate on which a conductive pattern is formed; a first plating layer covering the conductive pattern; and a second plating layer covering the first plating layer, wherein the first plating layer includes an electroless reduction plating layer.
    Type: Application
    Filed: November 10, 2011
    Publication date: July 5, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Chul Min Lee, Won Hyung Park, Kyung Jin Heo, Dek Gin Yang, Jin Su Yeo, Sung Wook Chun
  • Publication number: 20100155108
    Abstract: The present invention relates to an electroless nickel plating solution composition, a flexible printed circuit board and a manufacturing method thereof, and more particularly, to an electroless nickel plating solution composition, a flexible printed circuit board and a manufacturing method thereof capable of simultaneously satisfying plating characteristics respectively required for a pad unit and external connection units of the flexible printed circuit board by forming a nickel plating layer having a vertical growth structure with the electroless nickel plating solution composition including a water-soluble nickel compound, a reducing agent, a complexing agent and a vertical growth inducer.
    Type: Application
    Filed: May 28, 2009
    Publication date: June 24, 2010
    Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., YMT CO., LTD.
    Inventors: Chul Min Lee, Sung Wook Chun, Dek Gin Yang, Kyung Jin Heo, Young Ho Lee, Dong-Gi An
  • Publication number: 20030194485
    Abstract: Disclosed is an aqueous alloy plating solution for surface treatment of a modular PCB. The plating solution comprises 1-30 wt % of an organic acid having at least one sulfonic acid group (—SO3H), 0.1-20 wt % of a complexing agent, 0.1-15 wt % of a thio-compound having at least one —S—, 0.05-5 wt % of a water soluble gold compound, 0.001-1 wt % of a water soluble silver compound and 0.1-10 wt % of a sequestering agent, based upon the weight of the plating solution. According to this invention, all plating properties required for the modular PCB are obtained through a single plating process, instead of the conventional double plating process.
    Type: Application
    Filed: April 7, 2003
    Publication date: October 16, 2003
    Inventors: Byoung-Ho Rhee, Dek-Gin Yang, Dong-Gi An, Chul-Min Lee, Tae-Kyu Kwak, Sung-Yong Her, Sung-Wook Chun, Myong-Chul Shin, Sang-Wook Chun