Patents by Inventor Kwan Yul Lee

Kwan Yul 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: 7582834
    Abstract: A printed circuit board including an opening for receiving a semiconductor package having a plurality of external connections which protrude externally from side surfaces of the semiconductor package. The board also includes a plurality of board connectors electrically interconnected to the plurality of external connections of the package and formed on sidewall of the opening, wiring patterns for electrically interconnect electronic components mounted on the printed circuit board and being electrically interconnected to the plurality of board connectors, a plurality of holes penetrating the printed circuit board, and a fastener inserted into the plurality of holes and for fastening the semiconductor package received in the opening.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: September 1, 2009
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Kwan Yul Lee
  • Patent number: 7456044
    Abstract: A method of manufacturing an image sensor using a microlens mold is provided. The method includes: forming an interlayer dielectric layer on a semiconductor substrate having photodiodes; forming color filter layers on the interlayer dielectric layer; forming a planarization layer on the color filter layers; coating photoresist on the planarization layer; aligning a mold having a lens shaped pattern on the semiconductor substrate with the photoresist applied thereon; pressing the mold and the semiconductor substrate closely to each other such that a pattern formed in the mold is transferred onto the photoresist; and separating the mold from the semiconductor substrate, thereby forming micro-lenses.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: November 25, 2008
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Kwan Yul Lee
  • Publication number: 20070161146
    Abstract: A method of manufacturing an image sensor using a microlens mold is provided. The method includes: forming an interlayer dielectric layer on a semiconductor substrate having photodiodes; forming color filter layers on the interlayer dielectric layer; forming a planarization layer on the color filter layers; coating photoresist on the planarization layer; aligning a mold having a lens shaped pattern on the semiconductor substrate with the photoresist applied thereon; pressing the mold and the semiconductor substrate closely to each other such that a pattern formed in the mold is transferred onto the photoresist; and separating the mold from the semiconductor substrate, thereby forming micro-lenses.
    Type: Application
    Filed: December 15, 2006
    Publication date: July 12, 2007
    Inventor: Kwan Yul Lee