Patents Assigned to Viatron Technologies Inc.
  • Patent number: 7989736
    Abstract: Disclosed is a heat treatment system for semiconductor devices. The heat treatment system is used in a heat treatment process for semiconductor devices, such as a crystallization process for an amorphous silicon thin film or a dopant activation process for a poly-crystalline silicon thin film formed on a surface of a glass substrate of a flat display panel including a liquid crystal display (LCD) or an organic light emitting device (OLED).
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: August 2, 2011
    Assignee: Viatron Technologies Inc.
    Inventors: Wang Jun Park, Jung Bae Kim, Young Jae Ahn, Hyoung June Kim, Dong Hoon Shin
  • Patent number: 7932138
    Abstract: A method for manufacturing a thin film transistor with improved current characteristics and high electron mobility. According to the method, when an amorphous silicon thin film is crystallized into a polycrystalline silicon thin film by metal-induced crystallization, annealing conditions of the amorphous silicon thin film and the amount of a metal catalyst doped into the amorphous silicon thin film are optimized to reduce the regions of a metal silicide distributed at grain boundaries of the polycrystalline silicon thin film. In addition, oxygen (O2) gas or water (H2O) vapor is supplied to form a passivation film on the surface of the polycrystalline silicon thin film.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: April 26, 2011
    Assignee: Viatron Technologies Inc.
    Inventors: Hyoung June Kim, Dong Hoon Shin, Su Kyoung Lee, Jung Min Lee, Wang Jun Park, Sung Ryoung Ryu, Hoon Kim
  • Patent number: 6747254
    Abstract: The present invention relates to apparatuses for continuous and efficient heat-treatment of semiconductor films upon thermally susceptible non-conducting substrates at a minimum thermal budget, and more particularly, to a polycrystalline silicon thin-film transistors (poly-Si TFTs) and PN diodes on glass substrates for various applications of liquid crystal displays (LCDs), organic light emitting diodes (OLEDs), and solar cells. According to the apparatuses of the present invention, the semiconductor films can be heat-treated without damaging the thermally susceptible substrates: e.g., crystallization of amorphous silicon films at the minimum thermal budget acceptable for the use of glass, enhancing kinetics of dopant activation at the minimum thermal budget acceptable for the use of glass.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: June 8, 2004
    Assignee: Viatron Technologies Inc.
    Inventors: Hyoung June Kim, Dong Hoon Shin