Patents by Inventor Ji Ho HAN

Ji Ho HAN 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: 20210171802
    Abstract: An adhesive sheet for temporary fixation which may have excellent heat resistance to exhibit a sufficient adhesive force even though it undergoes a high temperature process during a process of manufacturing a semiconductor device and may also exhibit a sufficient reduction of the adhesive force by photocuring during the step of peeling off, and a method of manufacturing a semiconductor device using the same, are provided.
    Type: Application
    Filed: March 28, 2019
    Publication date: June 10, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Sera KIM, Ji Ho HAN, Kwang Joo LEE
  • Publication number: 20210155831
    Abstract: The present invention provides an adhesive composition that exhibits excellent adhesive force, and can be easily separated by photocuring during a peeling step, in which foaming and lifting are not generated even after a high temperature process.
    Type: Application
    Filed: June 17, 2019
    Publication date: May 27, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Mi JANG, Sera KIM, Ji Ho HAN, Kwang Joo LEE, Bora YEON, Kwang Su SEO
  • Publication number: 20210032501
    Abstract: The present disclosure relates to an adhesive sheet for temporary attachment which is excellent in heat resistance and can realize sufficient adhesive strength even when being subjected to a high temperature process during the semiconductor production process, and can exhibit a sufficient reduction in adhesive strength due to photocuring in a peeling step, and a method for producing a semiconductor device using the same.
    Type: Application
    Filed: April 11, 2019
    Publication date: February 4, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Sera KIM, Ji Ho HAN, Mi JANG, Kwang Joo LEE
  • Publication number: 20200211889
    Abstract: The present invention relates to a dicing die-bonding film including: a substrate; an antistatic layer formed on the substrate and including an aliphatic or alicyclic polyurethane resin and a conductive filler; a cohesive layer formed on the antistatic layer; and an adhesive layer formed on the cohesive layer, and a dicing method of a semiconductor wafer using the dicing die-bonding film.
    Type: Application
    Filed: August 30, 2018
    Publication date: July 2, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Ji Ho HAN, Se Ra KIM, Mun Seop SONG, Kwang Joo LEE, Yeong Im YU
  • Patent number: 10338020
    Abstract: The present invention relates to a method for measuring metal ion permeability of a polymer film, comprising the steps of: applying a voltage to the polymer film at a temperature of 5° C. to 250° C., while one side of the polymer film is brought into contact with an electrolyte comprising metal ions, an organic solvent and an aqueous solvent; and measuring the change rate of resistance or change rate of current of the polymer film according to time, after the voltage is applied, and a device for measuring metal ion permeability of a polymer film used therefor.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 2, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hak Kim, Young Kook Kim, Kwang Joo Lee, Hee Jung Kim, Se Ra Kim, Jung Ho Jo, Seung Hee Nam, Ji Ho Han
  • Patent number: 10324016
    Abstract: The present invention relates to a method for measuring metal ion permeability of a polymer film, comprising the steps of applying a voltage to the polymer film, while at least one side of the polymer film is brought into contact with an electrolyte comprising metal ions, an organic solvent and an aqueous solvent; and measuring the change rate of resistance or change rate of current of the polymer film according to time, after the voltage is applied, and a device for measuring metal ion permeability of a polymer film used therefor.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Young Kook Kim, Jung Hak Kim, Hee Jung Kim, Se Ra Kim, Jung Ho Jo, Kwang Joo Lee, Seung Hee Nam, Ji Ho Han
  • Publication number: 20170336315
    Abstract: The present invention relates to a method for measuring metal ion permeability of a polymer film, comprising the steps of applying a voltage to the polymer film, while at least one side of the polymer film is brought into contact with an electrolyte comprising metal ions, an organic solvent and an aqueous solvent; and measuring the change rate of resistance or change rate of current of the polymer film according to time, after the voltage is applied, and a device for measuring metal ion permeability of a polymer film used therefor.
    Type: Application
    Filed: January 29, 2016
    Publication date: November 23, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Young Kook KIM, Jung Hak KIM, Hee Jung KIM, Se Ra KIM, Jung Ho JO, Kwang Joo LEE, Seung Hee NAM, Ji Ho HAN
  • Publication number: 20170328851
    Abstract: The present invention relates to a method for measuring metal ion permeability of a polymer film, comprising the steps of: applying a voltage to the polymer film at a temperature of 5° C. to 250° C., while one side of the polymer film is brought into contact with an electrolyte comprising metal ions, an organic solvent and an aqueous solvent; and measuring the change rate of resistance or change rate of current of the polymer film according to time, after the voltage is applied, and a device for measuring metal ion permeability of a polymer film used therefor.
    Type: Application
    Filed: January 29, 2016
    Publication date: November 16, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hak KIM, Young Kook KIM, Kwang Joo LEE, Hee Jung KIM, Se Ra KIM, Jung Ho JO, Seung Hee NAM, Ji Ho HAN