Patents by Inventor Bok-Cheol Sim

Bok-Cheol Sim 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).

  • METHOD OF MANUFACTURING SINGLE CRYSTAL INGOT, AND SINGLE CRYSTAL INGOT AND WAFER MANUFACTURED THEREBY
    Publication number: 20140015108
    Abstract: A method of manufacturing a single crystal ingot, and a single crystal ingot and a wafer manufactured thereby are provided. The method of manufacturing a single crystal ingot according to an embodiment includes forming a silicon melt in a crucible inside a chamber, preparing a seed crystal on the silicon melt, and growing a single crystal ingot from the silicon melt, and pressure of the chamber may be controlled in a range of 90 Torr to 500 Torr.
    Type: Application
    Filed: March 20, 2012
    Publication date: January 16, 2014
    Inventors: Sang-Hee Kim, Jung-Ha Hwang, Young-Kyu Choi, Bok-Cheol Sim