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).

  • Patent number: 12065595
    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: Grant
    Filed: April 11, 2019
    Date of Patent: August 20, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Sera Kim, Ji Ho Han, Mi Jang, Kwang Joo Lee
  • Publication number: 20240254372
    Abstract: An adhesive composition for a semiconductor process, a film for a semiconductor process comprising the same, and a method for manufacturing a semiconductor package using the same are provided. The adhesive composition provides the film for a semiconductor process having excellent adhesion reliability to a wafer even during a process of debonding a carrier from the wafer.
    Type: Application
    Filed: July 29, 2022
    Publication date: August 1, 2024
    Inventors: Hee SONG, Ji Ho HAN, Kwang Joo LEE
  • Patent number: 12024654
    Abstract: The present disclosure relates to a non-conductive film comprising an adhesive layer containing a low molecular weight epoxy resin; and a tacky layer containing a predetermined composition, and a method for manufacturing a semiconductor laminate using the non-conductive film.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: July 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Eun Yeong Kim, You Jin Kyung, Kwang Joo Lee, Ji Ho Han, Bora Yeon, Mi Jang
  • Patent number: 12006308
    Abstract: The present disclosure relates to a polymer compound having a specific structure, including an acrylic resin having a functional group capable of mutual hydrogen bonding with an acrylic resin having imidazole, a resin composition for bonding semiconductors including a thermoplastic resin; a thermosetting resin; a curing agent; and the polymer compound having a specific structure, and an adhesive film for semiconductor produced using the same.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 11, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Youngsam Kim, Junghak Kim, Ju Hyeon Kim, Kwang Joo Lee
  • Patent number: 11993731
    Abstract: The present disclosure relates to an adhesive composition for semiconductor circuit connection and an adhesive film containing the same. The adhesive composition for semiconductor circuit connection according to the present disclosure can exhibit excellent adhesive strength during thermal compression bonding of a semiconductor circuit, and minimize a warpage of wafer caused by stacking of semiconductor circuits.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 28, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Junghak Kim, You Jin Kyung, Kwang Joo Lee, Minsu Jeong, Ju Hyeon Kim, Youngsam Kim
  • Patent number: 11939494
    Abstract: A technical problem to be achieved by the present disclosure is to provide an adhesive resin composition for a conductor, which contains inorganic fillers having different average particle diameters and has enhanced thermal conductivity as a result of controlling the content of the inorganic fillers, and an adhesive film for a semiconductor produced using the same.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: March 26, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jong Min Jang, Byoung Ju Choi, Kwang Joo Lee, Yu Lin Sun
  • Patent number: 11932784
    Abstract: The present invention provides an adhesive composition for a dicing tape, which may prevent the success rate of chip pick-up from decreasing due to an oxygen inhibition phenomenon occurring in a dicing process, and a dicing tape including the same. The adhesive composition for a dicing tape includes an adhesive binder, a singlet oxygen scavenger, a photosensitizer, and a photoinitiator.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: March 19, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Da Ae Kim, Ji Ho Han, Kwang Joo Lee, Eun Yeong Kim, Mi Jang
  • Patent number: 11879075
    Abstract: The present invention relates to a resin composition for bonding semiconductors including two types of curing catalyst mixtures together with a heat dissipation filler in which a specific functional group is introduced onto the surface, an adhesive film for semiconductor produced therefrom, a dicing die bonding film and a method for dicing a semiconductor wafer.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: January 23, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Wanjung Kim, Jong Min Jang, Byung Ju Choi, Kwang Joo Lee
  • Patent number: 11834415
    Abstract: The present disclosure relates to an adhesive resin composition for bonding semiconductors, including: a thermoplastic resin; a thermosetting resin; a curing agent; and a compound having a specific structure, and an adhesive film for semiconductors including the same.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 5, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Ju Hyeon Kim, Junghak Kim, Seunghee Nam, Kwang Joo Lee
  • Publication number: 20230295388
    Abstract: The present invention relates to an epoxy resin composition for molding a semiconductor having excellent heat resistance and mechanical properties and also having improved visibility while having a low coefficient of thermal expansion and thus exhibiting improved warpage characteristics, and a molding film and a semiconductor package using such an epoxy resin composition for molding a semiconductor.
    Type: Application
    Filed: May 25, 2023
    Publication date: September 21, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Minsu JEONG, You Jin KYUNG, Byung Ju CHOI, Woo Jae JEONG, Kwang Joo LEE, Eunbyurl CHO
  • Patent number: 11760907
    Abstract: The present disclosure relates to an adhesive film for a semiconductor and a dicing die-bonding film the same, and particularly, to an adhesive film for a semiconductor, which may reduce electromagnetic interference generated in a semiconductor package by including a polymer matrix in which a magnetic filler including a core and a coating layer formed on the surface of the core is dispersed, and a dicing die-bonding film including the same.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: September 19, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jong Min Jang, Kwang Joo Lee, Yu Lin Sun
  • Patent number: 11702520
    Abstract: The present invention relates to an epoxy resin composition for molding a semiconductor having excellent heat resistance and mechanical properties and also having improved visibility while having a low coefficient of thermal expansion and thus exhibiting improved warpage characteristics, and a molding film and a semiconductor package using such an epoxy resin composition for molding a semiconductor.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: July 18, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Minsu Jeong, You Jin Kyung, Byung Ju Choi, Woo Jae Jeong, Kwang Joo Lee, Eunbyurl Cho
  • Patent number: 11702571
    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: Grant
    Filed: March 28, 2019
    Date of Patent: July 18, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Sera Kim, Ji Ho Han, Kwang Joo Lee
  • Publication number: 20230220153
    Abstract: The present disclosure relates to a curing agent, an adhesive composition for a semiconductor device containing the curing agent, the adhesive composition exhibiting excellent adhesive strength and having excellent reliability because of being inhibited from cracking, an adhesive film for a semiconductor device, and a semiconductor package including the same.
    Type: Application
    Filed: April 16, 2021
    Publication date: July 13, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Seung Hee NAM, Kwang Joo LEE, Jung Hak KIM, Eun Byurl CHO, Young Sam KIM
  • Publication number: 20230174834
    Abstract: The present invention relates to an adhesive composition for a semiconductor and an adhesive film for a semiconductor including a cured product thereof, and in particular, to an adhesive composition for a semiconductor capable of removing voids occurring between an adherend and an adhesive and reducing bleed-out, and an adhesive film for a semiconductor including a cured product thereof.
    Type: Application
    Filed: October 20, 2020
    Publication date: June 8, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Eun Bum KIM, Kwang Joo LEE, Jung Hak KIM, Ju Hyeon KIM, Yoon Sun JANG
  • Publication number: 20230051048
    Abstract: Disclosed are an apparatus and a method for separating a semiconductor chip disposed on a base member via an adhesive member from the base member. The method includes: a step of providing a push member on a side of the base member opposite to a side on which the semiconductor chip is disposed and moving the push member in a direction adjacent to the semiconductor chip; and a step of separating the semiconductor chip, moved together with the push member, from the base member through a pick-up unit. The adhesive member and the push member are each magnetized such that repulsive forces act on each other.
    Type: Application
    Filed: February 4, 2021
    Publication date: February 16, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Eun Bum KIM, Ju Hyeon KIM, Kwang Joo LEE, Jung Hak KIM, Yoon Sun JANG
  • Patent number: 11527503
    Abstract: The present disclosure relates to a method for manufacturing a semiconductor package including vacuum-laminating a non-conductive film on a substrate on which a plurality of through silicon vias are provided and bump electrodes are formed, and then performing UV irradiation, wherein an increase in melt viscosity before and after UV irradiation can be adjusted to 30% or less, whereby a bonding can be performed without voids during thermo-compression bonding, and resin-insertion phenomenon between solders can be prevented, fillets can be minimized and reliability can be improved.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: December 13, 2022
    Assignee: LG CHEM, LTD.
    Inventors: You Jin Kyung, Minsu Jeong, Kwang Joo Lee
  • Patent number: 11515245
    Abstract: The present invention relates to a method for manufacturing an insulating layer for a semiconductor package which can improve reliability and have excellent heat resistance by removing pores generated in the insulating layer during manufacture of an insulating layer for a semiconductor package using magnetic characteristics, and an insulating layer for a semiconductor package obtained using the method for manufacturing the insulating layer for a semiconductor package.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: November 29, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Minsu Jeong, You Jin Kyung, Byung Ju Choi, Woo Jae Jeong, Kwang Joo Lee, Eunbyurl Cho
  • Patent number: 11479699
    Abstract: The present invention relates to an adhesive film for a semiconductor, including: a first layer including an adhesive binder and a heat-dissipating filler; and a second layer including an adhesive binder and a magnetic filler, which is formed on at least one surface of the first layer, wherein the adhesive film has a predetermined composition for the adhesive binder included in each of the first layer and the second layer.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 25, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jong Min Jang, Heejung Kim, Kwang Joo Lee
  • Patent number: 11466178
    Abstract: A back grinding tape including a hard coating layer, an intermediate layer including a polyurethane-based resin, and an adhesive layer provided has an excellent water resistance, thus easily protecting patterns, and has an excellent adhesion between each layer, and thus each layer is not separated in the process of removing the tape, such that the back grinding tape is suitable for a back grinding process.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: October 11, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Eun Yeong Kim, Sera Kim, Kwang Joo Lee, Sang Hwan Kim, Sung Chan Park, Mi Seon Yoon