Patents by Inventor Joong-Mo HWANG

Joong-Mo HWANG 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).

  • Manufacturing method for printed circuit board
    Patent number: 10893613
    Abstract: A manufacturing method for a printed circuit board includes: transferring roughness of a metal film to an insulating layer by laminating the metal film on the insulating layer, the metal film having the roughness formed on one surface thereof and having a discrete metal layer laminated thereon; exposing a surface of the insulating layer, on which the roughness is transferred, by removing the metal film; processing the surface of the insulating layer having the roughness formed thereon with an acidic solution; and forming a circuit pattern on the insulating layer by a plating process.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: January 12, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong-Guk Kim, Chul-Min Lee, Sung-Jun Park, Dong-Chul Shin, Chang-Jae Lee, Seon-Hye Kim, Joong-Mo Hwang, Sim-Hwan Park, Myung-Gun Chong, Tae-Wook Jung
  • MANUFACTURING METHOD FOR PRINTED CIRCUIT BOARD
    Publication number: 20180153043
    Abstract: A manufacturing method for a printed circuit board includes: transferring roughness of a metal film to an insulating layer by laminating the metal film on the insulating layer, the metal film having the roughness formed on one surface thereof and having a discrete metal layer laminated thereon; exposing a surface of the insulating layer, on which the roughness is transferred, by removing the metal film; processing the surface of the insulating layer having the roughness formed thereon with an acidic solution; and forming a circuit pattern on the insulating layer by a plating process.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 31, 2018
    Applicant: Samsung Electro-Mechanics Co., Ltd
    Inventors: Jong-Guk KIM, Chul-Min LEE, Sung-Jun PARK, Dong-Chul SHIN, Chang-Jae LEE, Seon-Hye KIM, Joong-Mo HWANG, Sim-Hwan PARK, Myung-Gun CHONG, Tae-Wook JUNG