Patents Assigned to NISSIAN CHEMICAL INDUSTRIES, LTD.
  • Patent number: 8697758
    Abstract: A urea compound of the present invention is represented by general formula (I) shown below: wherein each of X1, X2 and X3 independently represents a hydrogen atom, an alkyl group or an aryl group. The aryl group may have one or more functional groups selected from the group consisting of halogen groups, alkyl groups and alkoxy groups.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: April 15, 2014
    Assignees: National University Corporation Shizuoka University, Nissian Chemical Industries, Ltd.
    Inventor: Masamichi Yamanaka
  • Publication number: 20100022089
    Abstract: There is provided a laminate used as an underlayer layer for a photoresist in a lithography process of a semiconductor device and a method for manufacturing a semiconductor device by using the laminate. The method comprising: laminating each layer of an organic underlayer film (layer A), a silicon-containing hard mask (layer B), an organic antireflective film (layer C) and a photoresist film (layer D) in this order on a semiconductor substrate. The method also comprises: forming a resist pattern in the photoresist film (layer D); etching the organic antireflective film (layer C) with the resist pattern; etching the silicon-containing hard mask (layer B) with the patterned organic antireflective film (layer C); etching the organic underlayer film (layer A) with the patterned silicon-containing hard mask (layer B); and processing the semiconductor substrate with the patterned organic underlayer film (layer A).
    Type: Application
    Filed: October 12, 2007
    Publication date: January 28, 2010
    Applicant: NISSIAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Satoshi Takei, Makoto Nakajima, Yasushi Sakaida, Hikaru Imamura, Keisuke Hashimoto, Takahiro Kishioka