Patents by Inventor Kyung-Tae Wi

Kyung-Tae Wi 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: 8101527
    Abstract: The present invention relates to a dicing film having an adhesive film for dicing a wafer and a die adhesive film, which are used for manufacturing a semiconductor package, and a method of manufacturing a semiconductor package using the same. More particularly, the present invention relates to a dicing film wherein a shrinkage release film is inserted between an adhesive film for dicing a wafer and a die adhesive film so that the die adhesive film and a die can be easily separated from the adhesive film for dicing a wafer when picking up a semiconductor die, and a method of manufacturing a semiconductor package using the same.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: January 24, 2012
    Assignee: LG Innotek Co. Ltd.
    Inventors: Joon Mo Seo, Hyuk Soo Moon, Cheol Jong Han, Jong Geol Lee, Kyung Tae Wi
  • Patent number: 7968977
    Abstract: The present invention relates to a dicing film having an adhesive film for dicing a wafer and a die adhesive film, which are used for manufacturing a semiconductor package, and a method of manufacturing a semiconductor package using the same. More particularly, the present invention relates to a dicing film wherein a shrinkage release film is inserted between an adhesive film for dicing a wafer and a die adhesive film so that the die adhesive film and a die can be easily separated from the adhesive film for dicing a wafer when picking up a semiconductor die, and a method of manufacturing a semiconductor package using the same.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: June 28, 2011
    Assignee: LG Innotek Co., Ltd.
    Inventors: Joon Mo Seo, Hyuk Soo Moon, Cheol Jong Han, Jong Geol Lee, Kyung Tae Wi
  • Publication number: 20100197078
    Abstract: The present invention relates to a dicing film having an adhesive film for dicing a wafer and a die adhesive film, which are used for manufacturing a semiconductor package, and a method of manufacturing a semiconductor package using the same. More particularly, the present invention relates to a dicing film wherein a shrinkage release film is inserted between an adhesive film for dicing a wafer and a die adhesive film so that the die adhesive film and a die can be easily separated from the adhesive film for dicing a wafer when picking up a semiconductor die, and a method of manufacturing a semiconductor package using the same.
    Type: Application
    Filed: April 12, 2010
    Publication date: August 5, 2010
    Applicant: LG Cable LTD.
    Inventors: Joon Mo Seo, Hyuk Soo Moon, Cheol Jong Han, Jong Geol Lee, Kyung Tae Wi
  • Patent number: 7768141
    Abstract: A dicing die attachment film includes a die attachment layer attached to one surface of a semiconductor wafer; a dicing film layer attached to a dicing die that is used for cutting the semi-conductor wafer into die units; and an intermediate layer laminated between the die attachment layer and the dicing film layer. The intermediate layer has a modulus of 100 to 3000 MPa, which is greater than a modulus of the die attachment layer and the dicing film layer.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: August 3, 2010
    Assignee: LG Innotek Co., Ltd.
    Inventors: Joon-Mo Seo, Byoung-Un Kang, Kyung-Tae Wi, Jae-Hoon Kim, Tae-Hyun Sung, Soon-Young Hyun, Byoung-Kwang Lee, Chan-Young Choi
  • Publication number: 20100087067
    Abstract: A method for packaging a semiconductor is provided to allow uniform coating of a die attachment paste, shorten a B-staging time, and improve die pick-up characteristics and die attachment characteristics. This method includes preparing a die attachment paste with a viscosity of 1,500 to 100,000 cps; rotating a wafer and applying the die attachment paste to an upper surface of the wafer into a predetermined thickness; and B-staging the paste applied on the wafer. This method makes it possible to reduce costs by substituting for WBL (Wafer Backside Lamination) film, uniformly apply a die attachment paste to a wafer, freely control a thickness of applied die attachment paste by adjusting viscosity and dosage of discharged paste and a speed of a spin coater, and also shorten a process time by decreasing a B-staging time.
    Type: Application
    Filed: October 25, 2007
    Publication date: April 8, 2010
    Inventors: Joon-Mo Seo, Byoung-Un Kang, Kyung-Tae Wi, Jae-Hoon Kim, Tae-Hyun Sung, Soon-Young Hyun
  • Publication number: 20090198013
    Abstract: An adhesive film for semiconductor is disclosed. The present invention provides an adhesive film for semiconductor used in semiconductor packaging, comprising an adhesive layer, wherein the adhesive layer has surface tension of 19 to 52 erg/cm at 60 ° C. Accordingly, the adhesive film for semiconductor according to the present invention may prevent bubbles from being formed between the adhesive film and a supporting member by controlling surface tension in an optimum condition, and also obtain higher reliability in use of the adhesive film in the semi-conductor packaging by controlling tackiness and adhesive force in an optimum condition.
    Type: Application
    Filed: October 31, 2005
    Publication date: August 6, 2009
    Inventors: Dong-Cheon Shin, Byoung-Un Kang, Tae-Hyun Sung, Jai-Hoon Kim, Kyung-Tae Wi, Joon-Mo Seo, Hyuk-Soo Moon
  • Publication number: 20090091044
    Abstract: A dicing die attachment film includes a die attachment layer attached to one surface of a semiconductor wafer; a dicing film layer attached to a dicing die that is used for cutting the semi-conductor wafer into die units; and an intermediate layer laminated between the die attachment layer and the dicing film layer. The intermediate layer has a modulus of 100 to 3000 MPa, which is greater than a modulus of the die attachment layer and the dicing film layer.
    Type: Application
    Filed: February 14, 2007
    Publication date: April 9, 2009
    Inventors: Joon-Mo Seo, Byoung-Un Kang, Kyung-Tae Wi, Jae-Hoon Kim, Tae-Hyun Sung, Soon-Young Hyun, Byoung-Kwang Lee, Chan-Young Choi
  • Patent number: 7485494
    Abstract: A dicing die adhesive film for semiconductor of the present invention has a 3-layered structure including a first adhesive layer attached on the back of a semiconductor wafer; a second adhesive layer attached onto the first adhesive layer; and a dicing film attached onto the second adhesive layer, and therefore has an advantage that it can ensure reliability of the semiconductor packaging process since it may prevent the die-flying phenomenon and the poor pickup of the die in the dicing process and maintain a sufficient adhesive force between the die and the substrate upon die boding.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: February 3, 2009
    Assignee: LS Cable Ltd.
    Inventors: Byoung-Un Kang, Jai-Hoon Kim, Joon-Mo Seo, Tae-Hyun Sung, Dong-Cheon Shin, Kyung-Tae Wi
  • Publication number: 20070134847
    Abstract: Disclosed are a die-attaching paste composition and a method for hardening the same. The present invention provides the die-attaching paste composition applied at a thickness of 200 ?m or less on a printed circuit board (PCB), including liquid or solid epoxy, acrylate, a flexing agent, an organic filler and a UV-initiator. The method for hardening a die-attaching paste of the present invention includes carrying out a B-staging process by irradiating a UV-ray to the die-attaching paste composition. According to the present invention, a processing time may be more shortened and storage of the die-attaching paste may be more significantly improved when a B-staging process using UV rays is applied than when a conventional thermal crosslinking method is used, and therefore a manufacturing cost in the conventional assembly industries may be decreased.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 14, 2007
    Inventors: Byoung-Un Kang, Jae-Hoon Kim, Joon-Mo Seo, Tae-Hyun Sung, Kyung-Tae Wi
  • Publication number: 20070101877
    Abstract: A dual printing mask is used for coating a die adhering paste of a predetermined pattern on a substrate uniformly during a semiconductor packaging process. This dual printing mask includes a metal mask layer having a predetermined pattern of openings so as to receive a paste for adhering a semiconductor die onto a substrate, and a mesh layer integrally attached on the metal mask layer.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 10, 2007
    Inventors: Joon-Mo Seo, Byoung-Un Kang, Kyung-Tae Wi, Jae-Hoon Kim, Tae-Hyun Sung, Goo-Yun Chung, Seong-Hwan Jang, Tae-Kyu Im
  • Publication number: 20060244132
    Abstract: A dicing die adhesive film for semiconductor of the present invention has a 3-layered structure including a first adhesive layer attached on the back of a semiconductor wafer; a second adhesive layer attached onto the first adhesive layer; and a dicing film attached onto the second adhesive layer, and therefore has an advantage that it can ensure reliability of the semiconductor packaging process since it may prevent the die-flying phenomenon and the poor pickup of the die in the dicing process and maintain a sufficient adhesive force between the die and the substrate upon die boding.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 2, 2006
    Inventors: Byoung-Un Kang, Jai-Hoon Kim, Joon-Mo Seo, Tae-Hyun Sung, Dong-Cheon Shin, Kyung-Tae Wi