Patents by Inventor Seong-Oh Jeong

Seong-Oh Jeong 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: 8597756
    Abstract: Provided are a resistance heated sapphire single crystal ingot grower, a method of manufacturing a resistance heated sapphire single crystal ingot, a sapphire single crystal ingot, and a sapphire wafer. The resistance heated sapphire single crystal ingot grower comprises according to an embodiment includes a chamber, a crucible included in the chamber and containing an alumina melt, and a resistance heating heater included inside the chamber and heating the crucible.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 3, 2013
    Assignee: LG Siltron Inc.
    Inventors: Do Won Song, Young Hee Mun, Sang Hoon Lee, Seong Oh Jeong, Chang Youn Lee
  • Publication number: 20120282426
    Abstract: Provided are a resistance heated sapphire single crystal ingot grower, a method of manufacturing a resistance heated sapphire single crystal ingot, a sapphire single crystal ingot, and a sapphire wafer. The resistance heated sapphire single crystal ingot grower comprises according to an embodiment includes a chamber, a crucible included in the chamber and containing an alumina melt, and a resistance heating heater included inside the chamber and heating the crucible.
    Type: Application
    Filed: January 19, 2012
    Publication date: November 8, 2012
    Inventors: Do Won SONG, Young Hee Mun, Sang Hoon Lee, Seong Oh Jeong, Chang Youn Lee
  • Publication number: 20080107582
    Abstract: A method for manufacturing a semiconductor single crystal uses a Czochralski (CZ) process in which a seed crystal is dip into a melt of semiconductor raw material and dopant received in a crucible, and the seed crystal is slowly pulled upward while rotated to grow a semiconductor single crystal. Here, a cusp-type asymmetric magnetic field having different upper and lower magnetic field intensities based on ZGP (Zero Gauss Plane) where a vertical component of the magnetic field is 0 is applied to the crucible such that a specific resistance profile, theoretically calculated in a length direction of crystal, is expanded in a length direction of crystal. Thus, thickness of a diffusion boundary layer near a solid-liquid interface is increased to increase an effective segregation coefficient of dopant, thereby expanding a specific resistance profile in a length direction of crystal, increasing a prime length of the single crystal, and improving productivity.
    Type: Application
    Filed: October 16, 2007
    Publication date: May 8, 2008
    Inventors: Young-Ho Hong, Sang-Jun Lee, Seong-Oh Jeong, Hong-Woo Lee