Patents by Inventor Kentarou Kawanami

Kentarou Kawanami 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: 9329489
    Abstract: An exposure method comprises a calculation step of calculating a correction amount of a correction unit which corrects a change in imaging characteristics of a projection optical system based on at least one of parameters including a numerical aperture and effective light source of an illumination optical system, a numerical aperture of the projection optical system, and a size and pitch of a pattern, and an amount of change in environment condition in the projection optical system; and a correction step of making the correction unit operate in accordance with the correction amount calculated in the calculation step.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: May 3, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kentarou Kawanami
  • Patent number: 8749758
    Abstract: An apparatus includes original positioning mechanism which positions original stage, substrate positioning mechanism which positions substrate stage, measurement device mounted on the substrate stage, and controller. One of original and the original stage is provided with first measurement pattern including patterns, at least one of pitches and widths thereof being different from each other. The measurement device includes second measurement pattern, and sensor configured to detect light passed through the first and second measurement patterns, and a projection optical system. The controller determines illuminated region, within which the first measurement pattern is to be illuminated, using information related to the original, and obtains information related to an image of the first measurement pattern within the illuminated region based on an output from the sensor.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: June 10, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kentarou Kawanami
  • Publication number: 20130286373
    Abstract: An exposure method comprises a calculation step of calculating a correction amount of a correction unit which corrects a change in imaging characteristics of a projection optical system based on at least one of parameters including a numerical aperture and effective light source of an illumination optical system, a numerical aperture of the projection optical system, and a size and pitch of a pattern, and an amount of change in environment condition in the projection optical system; and a correction step of making the correction unit operate in accordance with the correction amount calculated in the calculation step.
    Type: Application
    Filed: July 1, 2013
    Publication date: October 31, 2013
    Inventor: Kentarou KAWANAMI
  • Patent number: 8502961
    Abstract: An exposure method comprises a calculation step of calculating a correction amount of a correction unit which corrects a change in imaging characteristics of a projection optical system based on at least one of parameters including a numerical aperture and effective light source of an illumination optical system, a numerical aperture of the projection optical system, and a size and pitch of a pattern, and an amount of change in environment condition in the projection optical system; and a correction step of making the correction unit operate in accordance with the correction amount calculated in the calculation step.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: August 6, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kentarou Kawanami
  • Publication number: 20120224163
    Abstract: An apparatus includes original positioning mechanism which positions original stage, substrate positioning mechanism which positions substrate stage, measurement device mounted on the substrate stage, and controller. One of original and the original stage is provided with first measurement pattern including patterns, at least one of pitches and widths thereof being different from each other. The measurement device includes second measurement pattern, and sensor configured to detect light passed through the first and second measurement patterns, and a projection optical system. The controller determines illuminated region, within which the first measurement pattern is to be illuminated, using information related to the original, and obtains information related to an image of the first measurement pattern within the illuminated region based on an output from the sensor.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 6, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kentarou Kawanami
  • Publication number: 20110001956
    Abstract: An exposure method comprises a calculation step of calculating a correction amount of a correction unit which corrects a change in imaging characteristics of a projection optical system based on at least one of parameters including a numerical aperture and effective light source of an illumination optical system, a numerical aperture of the projection optical system, and a size and pitch of a pattern, and an amount of change in environment condition in the projection optical system; and a correction step of making the correction unit operate in accordance with the correction amount calculated in the calculation step.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 6, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kentarou Kawanami
  • Patent number: 7672067
    Abstract: This invention effectively limits light incidence on an adhesive material fixing an optical element. An optical device includes an optical element, a supporting member connected to the optical element through an adhesive material to support the optical element, and a light shielding film formed in an unirradiated region on the surface of the optical element to limit light incidence on the adhesive material.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 2, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kentarou Kawanami
  • Publication number: 20090002674
    Abstract: This invention effectively limits light incidence on an adhesive material fixing an optical element. An optical device includes an optical element, a supporting member connected to the optical element through an adhesive material to support the optical element, and a light shielding film formed in an unirradiated region on the surface of the optical element to limit light incidence on the adhesive material.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 1, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kentarou Kawanami