Patents by Inventor Norishiro Komatsu

Norishiro Komatsu 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: 7351654
    Abstract: A method for producing a semiconductor device includes the steps of forming silicon crystal nuclei on a substrate, depositing first amorphous silicon, depositing second amorphous silicon, and crystallizing the first amorphous silicon and the second amorphous silicon by allowing the crystal nuclei to grow in the solid phase.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: April 1, 2008
    Assignee: Elpida Memory, Inc.
    Inventors: Norishiro Komatsu, Fumiki Aiso, Toshiyuki Hirota
  • Publication number: 20070042574
    Abstract: A method for manufacturing a semiconductor device that can prevent short-circuiting between gate electrodes and increases in the leakage current of a capacitive insulating film caused by the bottom electrode of the capacitor is provided. The method for manufacturing a semiconductor device according to the present invention comprises a first step for forming an amorphous silicon film on a semiconductor substrate; a second step for forming a stopper film on a surface of the amorphous silicon film to prevent migration of the surface of the amorphous silicon film; and a third step for removing the stopper film from the surface of the amorphous silicon film.
    Type: Application
    Filed: August 15, 2006
    Publication date: February 22, 2007
    Inventors: Norishiro Komatsu, Toshiyuki Hirota
  • Publication number: 20050260862
    Abstract: A method for producing a semiconductor device includes the steps of forming silicon crystal nuclei on a substrate, depositing first amorphous silicon, depositing second amorphous silicon, and crystallizing the first amorphous silicon and the second amorphous silicon by allowing the crystal nuclei to grow in the solid phase.
    Type: Application
    Filed: May 19, 2005
    Publication date: November 24, 2005
    Inventors: Norishiro Komatsu, Fumiki Aiso, Toshiyuki Hirota