Patents by Inventor Kwang-Joo Lee

Kwang-Joo Lee 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: 20190326226
    Abstract: There are provided an adhesive film for a semiconductor including: a conductive layer containing at least one metal selected from the group consisting of copper, nickel, cobalt, iron, stainless steel (SUS), and aluminum, and having a thickness of 0.05 ?m or more; and an adhesive layer formed on at least one surface of the conductive layer and including a (meth)acrylate-based resin, a curing agent, and an epoxy resin, and a semiconductor device including the above-mentioned adhesive film.
    Type: Application
    Filed: November 15, 2017
    Publication date: October 24, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hee Jung KIM, Nu Ri NA, Young Kook KIM, Kwang Joo LEE
  • 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
  • Publication number: 20190189304
    Abstract: The present invention relates to a method for manufacturing an insulating layer which can minimize the degree of warpage caused by polymer shrinkage at the time of curing and secure the stability of a semiconductor chip located therein, and a method for manufacturing a semiconductor package using an insulating layer obtained from the manufacturing method of the insulating layer.
    Type: Application
    Filed: July 2, 2018
    Publication date: June 20, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Woo Jae JEONG, You Jin KYUNG, Byung Ju CHOI, Bo Yun CHOI, Kwang Joo LEE, Min Su JEONG
  • 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
  • Patent number: 10253223
    Abstract: The present invention relates to a semiconductor device including: a first semiconductor element fixed onto an adherend by flip-chip connection; an adhesive layer for embedding a space between the adherend and the first semiconductor element and embedding the first semiconductor element; and a second semiconductor element connected to the first semiconductor element via the adhesive layer, wherein the adhesive layer has a predetermined melt viscosity and thixotropic index.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 9, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hak Kim, Hee Jung Kim, Se Ra Kim, Kwang Joo Lee, Seung Hee Nam, Young Kook Kim
  • Publication number: 20190080820
    Abstract: The present invention relates to a heating element and a method for manufacturing same, and more specifically, a heating element and a method for manufacturing same is provided, the heating element comprising: an adhesive film; and a conductive heating pattern provided on the adhesive film, wherein the adhesive film has a rate of adhesive force reduction due to an external stimulus of at least 30% with respect to the adhesive force thereof prior to the application of an external stimulus.
    Type: Application
    Filed: December 23, 2016
    Publication date: March 14, 2019
    Inventors: Ji Eun MYUNG, Sera KIM, Jooyeon KIM, Chang Yoon LIM, Seung Heon LEE, Mun Seop SONG, Kwang Joo LEE, Ji Young HWANG
  • Publication number: 20190043748
    Abstract: The present invention relates to an adhesive resin composition for a semiconductor, including: a (meth)acrylate-based resin including a (meth)acrylate-based repeating unit containing an epoxy-based functional group and a (meth)acrylate-based repeating unit containing an aromatic functional group, the (meth)acrylate-based resin having a hydroxyl equivalent weight of 0.15 eq/kg or less; a curing agent including a phenol resin having a softening point of 100° C. or higher; and an epoxy resin, wherein the content of a (meth)acrylate-based functional group containing an aromatic functional group in the (meth)acrylate-based resin is 2 to 40% by weight, an adhesive film for a semiconductor including the above adhesive resin composition for a semiconductor, a dicing die bonding film including an adhesive layer including the adhesive film for a semiconductor, and a method for dicing a semiconductor wafer using the dicing die bonding film.
    Type: Application
    Filed: September 22, 2017
    Publication date: February 7, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hee Jung KIM, Jung Hak KIM, Kwang Joo LEE
  • Publication number: 20180265758
    Abstract: The present invention relates to an adhesive film having a thixotropic index at 110° C. of 1.5 to 7.5, which is used for fixing a first semiconductor device and a second semiconductor device, a ratio of an area of said first semiconductor device to an area of said second semiconductor device being 0.65 or less, a method for preparing a semiconductor device using the adhesive film, and a semiconductor device.
    Type: Application
    Filed: September 23, 2016
    Publication date: September 20, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hak KIM, Hee Jung KIM, Se Ra KIM, Kwang Joo LEE, Young Kook KIM, Seung Hee NAM
  • Publication number: 20180261576
    Abstract: The present invention relates to a semiconductor device and a method of manufacturing a semiconductor device, and more particularly, to a semiconductor device capable of reducing the uppermost semiconductor chip damage and stably performing wire bonding even if an excessive force is applied during a die bonding process or a wire bonding process, and a method for manufacturing the semiconductor device.
    Type: Application
    Filed: November 4, 2016
    Publication date: September 13, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Jung Hak Kim, Hee Jung Kim, Se Ra Kim, Jung Ho Jo, Kwang Joo Lee, Seung Hee Nam, Young Kook Kim
  • Publication number: 20180237663
    Abstract: The present invention relates to a semiconductor device including: a first semiconductor element formed on an adherend; and an adhesive film for embedding the first semiconductor element, wherein the adhesive film satisfies a predetermined ratio between a melt viscosity and a weight loss ratio at a high temperature.
    Type: Application
    Filed: March 28, 2017
    Publication date: August 23, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hak KIM, Hee Jung KIM, Seung Hee NAM, Kwang Joo LEE, Se Ra KIM, Young Kook KIM
  • Publication number: 20180237667
    Abstract: The present invention relates to a semiconductor device including: a first semiconductor element fixed onto an adherend by flip-chip connection; an adhesive layer for embedding a space between the adherend and the first semiconductor element and embedding the first semiconductor element; and a second semiconductor element connected to the first semiconductor element via the adhesive layer, wherein the adhesive layer has a predetermined melt viscosity and thixotropic index.
    Type: Application
    Filed: March 31, 2017
    Publication date: August 23, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hak KIM, Hee Jung KIM, Se Ra KIM, Kwang Joo LEE, Seung Hee NAM, Young Kook KIM
  • Patent number: 9953945
    Abstract: The present invention relates to an adhesive resin composition for bonding semiconductors, including: a (meth)acrylate-based resin including more than 17% by weight of (meth)acrylate-based repeating units containing epoxy-based functional groups; an epoxy resin having a softening point of more than 70° C.; and a phenol resin having a softening point of more than 105° C., wherein the weight ratio of the (meth)acrylate-based resin is 0.48 to 0.65 relative to the total weight of the (meth)acrylate-based resin, the epoxy resin, and the phenol resin, an adhesive film for semiconductors obtained from the resin composition, a dicing die-bonding film including an adhesive layer that includes the adhesive film for semiconductors, a semiconductor wafer including the dicing die-bonding film, and a dicing method for the semiconductor wafer using the dicing die-bonding film.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 24, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Hee Jung Kim, Jung Hak Kim, Se Ra Kim, Kwang Joo Lee
  • Patent number: 9880467
    Abstract: The present invention relates to a photo-curable and thermo-curable resin composition which can form a DFSR having micro unevenness on the surface without a separate treatment such as plasma treatment and the like and a DFSR. The photo-curable and thermo-curable resin composition includes an acid-modified oligomer having a carboxyl group (—COOH) and a photo-curable unsaturated functional group; a polyimide-based resin; a photo-polymerizable monomer having two or more photo-curable unsaturated functional groups; a thermo-curable binder having a thermo-curable functional group; and a photoinitiator.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: January 30, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Min Su Jeong, Byung Ju Choi, Woo Jae Jeong, Bo Yun Choi, Kwang Joo Lee
  • Patent number: 9865480
    Abstract: The present invention relates to an under-fill dam with high detection probability that is composed of a dry film solder resist and provided in the form of a fence around a chip device in order to prevent leaks of an under-fill material filled in a gap between a substrate and the chip device.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: January 9, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Byung-Ju Choi, Woo-Jae Jeong, Bo-Yun Choi, Kwang-Joo Lee, Min-Su Jeong
  • 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
  • Patent number: 9788434
    Abstract: The present invention relates to a preparation method for a dry film solder resist (DFSR) capable of forming the DFSR having fine unevenness on a surface by a more simplified method, and a film laminate used therein. The preparation method for a dry film solder resist includes forming a predetermined photo-curable and heat-curable resin composition on a transparent carrier film having a surface on which a fine unevenness having an average roughness (Ra) of 200 nm to 2 ?m is formed; laminating the resin composition on a substrate to form a laminated structure in which the substrate, the resin composition, and the transparent carrier film are sequentially formed; exposing the resin composition and delaminating the transparent carrier film; and alkaline-developing the resin composition in a non-exposure part and performing heat-curing.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: October 10, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Min Su Jeong, You Jin Kyung, Byung Ju Choi, Woo Jae Jeong, Bo Yun Choi, Kwang Joo Lee, Se Jin Ku
  • Patent number: 9778566
    Abstract: Provided are a photocurable and thermocurable resin composition including: an acid-modified oligomer including an iminocarbonate-based compound containing a carboxyl group and a photocurable unsaturated functional group; a photopolymerizable monomer having two or more photocurable unsaturated functional groups; a thermocurable binder having a thermally curable functional group; a functional filler including one or more selected from the group consisting of carbon allotrope particles having a ceramic compound bound to a surface thereof and heat radiating ceramic particles; and a photoinitiator, and a dry film solder resist manufactured therefrom.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 3, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Byung Ju Choi, You Jin Kyung, Woo Jae Jeong, Bo Yun Choi, Kwang Joo Lee, Min Su Jeong
  • Patent number: 9761476
    Abstract: The present invention relates to a dicing film including: a substrate film; and a cohesive layer, wherein a storage modulus of the cohesive layer at 30° C. is 3*105 to 4*106 Pa, and the cohesive layer has a degree of cross-linking of 80% to 99%, a dicing die-bonding film including the dicing film, and a dicing method of a semiconductor wafer using the dicing die-bonding film.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: September 12, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Se Ra Kim, Jung Ho Jo, Young Kook Kim, Hee Jung Kim, Kwang Joo Lee, Jung Hak Kim, Seung Hee Nam
  • Publication number: 20170233610
    Abstract: The present invention relates to an adhesive film for a semiconductor that can more easily bury unevenness such as through wires of a semiconductor substrate or a wire attached to a semiconductor chip and the like, and yet can be applied to various cutting methods without specific limitations to realize excellent cuttability, thus improving reliability and efficiency of a semiconductor packaging process.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 17, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Hee Jung KIM, Se Ra KIM, Jung Hak KIM, Seung Hee NAM, Jung Ho JO, Kwang Joo LEE, Young Kook KIM