Patents by Inventor Yasunaga Kayama

Yasunaga Kayama 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).

  • Publication number: 20110019170
    Abstract: A projection exposure apparatus has a substrate table on which a substrate is mounted that can be moved holding the substrate, a position measuring system that measures positional information of the substrate table, and a correction unit that corrects positional deviation occurring in at least either the substrate or the substrate table due to supply of a liquid. In this case, the correction unit corrects the positional deviation occurring in at least either the substrate or the substrate table due to the supply of the liquid. Accordingly, exposure with high precision using a liquid immersion method is performed on the substrate.
    Type: Application
    Filed: October 1, 2010
    Publication date: January 27, 2011
    Applicant: NIKON CORPORATION
    Inventors: Yasunaga Kayama, Dai Arai
  • Publication number: 20070081133
    Abstract: A projection exposure apparatus (100) has a substrate table (30) on which a substrate (W) is mounted that can be moved holding the substrate, a position measuring system (18 and others) that measures positional information of the substrate table, and a correction unit (19) that corrects positional deviation occurring in at least either the substrate or the substrate table due to supply of a liquid. In this case, the correction unit corrects the positional deviation occurring in at least either the substrate or the substrate table due to the supply of the liquid. Accordingly, exposure with high precision using a liquid immersion method is performed on the substrate.
    Type: Application
    Filed: December 14, 2004
    Publication date: April 12, 2007
    Applicant: NIIKON CORPORATION
    Inventors: Yasunaga Kayama, Dai Arai
  • Publication number: 20070064212
    Abstract: A projection exposure apparatus (100) has a substrate table (30) on which a substrate (W) is mounted that can be moved holding the substrate, a position measuring system (18 and others) that measures positional information of the substrate table, and a correction unit (19) that corrects positional deviation occurring in at least either the substrate or the substrate table due to supply of a liquid. In this case, the correction unit corrects the positional deviation occurring in at least either the substrate or the substrate table due to the supply of the liquid. Accordingly, exposure with high precision using a liquid immersion method is performed on the substrate.
    Type: Application
    Filed: November 24, 2006
    Publication date: March 22, 2007
    Applicant: Nikon Corporation
    Inventors: Yasunaga Kayama, Dai Arai
  • Patent number: 6879375
    Abstract: An exposure apparatus that exposes a pattern of a mask onto a substrate is provided with a projection system that projects the pattern onto a substrate, a holder that holds the projection system, a detector that detects information concerning displacement (e.g., oscillation) of the projection system, an actuator that is arranged in the holder, and a driver that drives the actuator corresponding to the detection results of the detector. Therefore, when, for example, displacement caused by vibration is generated in the holder of the projection system, the detector detects information concerning this displacement and outputs this information to the driver. By driving the actuator with the driver, the actuator controls displacement generated in the holder by canceling the detected displacement. This improves positioning accuracy and pattern projection accuracy of the exposure apparatus by controlling displacement caused by oscillation generated in the projection system.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: April 12, 2005
    Assignee: Nikon Corporation
    Inventor: Yasunaga Kayama