Patents by Inventor Youn Sang Kim

Youn Sang Kim 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: 20040063334
    Abstract: A mask pattern is formed on a substrate by using a solvent absorbent mold having a pattern structure with a relief and an intaglio portion. A mask layer dissolved in a solvent to obtain fluidity is prepared on the substrate. The mold is pressed onto the mask layer with a predetermined pressure, and a portion of the mask layer that contacts with the relief portion of the mold is introduced into the intaglio portion thereof. Then, the mold absorbs the solvent contained in the mask layer to thereby solidify the mask layer. Next, the mold is separated from the substrate and the portion of the mask layer that contacts with the relief portion of the mold is removed, thus finally obtaining the desired minute mask pattern.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventors: Hong Hie Lee, Youn Sang Kim, Tae Wan Kim, Pil Jin Yoo
  • Publication number: 20030062334
    Abstract: In a method for forming a micro-pattern on a substrate by employing a mold having a predetermined pattern structure, a mold having a predetermined pattern structure containing a recessed portion and a protruded portion is prepared. A polymer material is deposited on the substrate. Then the protruded portion of the mold is controlled to be in contact with the polymer material and the polymer material in contact with the protruded portion of the mold is incorporated into an empty space of the recessed portion thereof by using capillary force thereof, thereby removing the polymer material in contact with the protruded portion of the mold. Thereafter, a portion of the top surface of the substrate is exposed by detaching the mold to thereby form a polymer micro-pattern on the substrate.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 3, 2003
    Inventors: Hong Hie Lee, Kab Yang Suh, Youn Sang Kim, Pil Jin Yoo