Patents by Inventor ChangSuk Han

ChangSuk 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).

  • Patent number: 8072083
    Abstract: A film-on-wire spacer covers an entire upper surface of a lower electronic component. Accordingly, an upper electronic component is supported above bond pads and lower bond wires of the lower electronic component. This decreases the stress on the upper electronic component, e.g., during wirebonding, and thus decreases the chance of cracking the upper electronic component. Further, the lower bond wires are enclosed in and protected by the film-on-wire spacer. Further, the film-on-wire spacer is thin resulting in a minimum height of the stacked electronic component package.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: December 6, 2011
    Assignee: Amkor Technology, Inc.
    Inventors: Roger D. St. Amand, ChangSuk Han, YounSang Kim, KyungRok Park, Vladimir Perelman
  • Patent number: 7675180
    Abstract: A film-on-wire spacer covers an entire upper surface of a lower electronic component. Accordingly, an upper electronic component is supported above bond pads and lower bond wires of the lower electronic component. This decreases the stress on the upper electronic component, e.g., during wirebonding, and thus decreases the chance of cracking the upper electronic component. Further, the lower bond wires are enclosed in and protected by the film-on-wire spacer. Further, the film-on-wire spacer is thin resulting in a minimum height of the stacked electronic component package.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: March 9, 2010
    Assignee: Amkor Technology, Inc.
    Inventors: Roger D. St. Amand, ChangSuk Han, YounSang Kim, KyungRok Park, Vladimir Perelman
  • Publication number: 20080237824
    Abstract: A method of fabricating a stacked electronic component package includes placing a single-sided film spacer on an upper surface of a lower electronic component inward of bond pad with a pickup tool. After being adhered to the upper surface of the lower electronic component, the pickup tool is retracted from the single-sided film spacer. An upper surface of a film, e.g., an organic film, of the single-sided film spacer is nonadhesive. Accordingly, the single-sided film spacer does not stick to the pickup tool during retraction of the pickup tool from the single-sided film spacer.
    Type: Application
    Filed: February 17, 2006
    Publication date: October 2, 2008
    Inventors: Roger D. St. Amand, ChangSuk Han, YounSang Kim, KyungRok Park