Patents by Inventor Hiroyuki Kitsunai

Hiroyuki Kitsunai 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: 6616759
    Abstract: A method and system are provided for controlling and/or monitoring a semiconductor processing apparatus while predicting its processing results.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: September 9, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Junichi Tanaka, Hiroyuki Kitsunai, Akira Kagoshima, Daisuke Shiraishi, Hideyuki Yamamato, Shoji Ikuhara, Toshio Masuda
  • Patent number: 6590179
    Abstract: A plasma processing apparatus having a process chamber to process specimens, a status detecting means for detecting the internal processing status of said process chamber and outputting a plurality of signals, and signal converting means for extracting an arbitrary number of signal processing filters from a signal filter database using a signal filter selecting means and creating an arbitrary number of device status signals. The signal converting means creates fewer effective device status signals of a time series from said output signals.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: July 8, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Junichi Tanaka, Hiroyuki Kitsunai, Ryoji Nishio, Seiichiro Kanno, Hideyuki Yamamoto
  • Publication number: 20030113945
    Abstract: A plasma processing control system and method which can suppress influences caused by disturbances. The control system includes a plasma processor for performing processing operation over a sample accommodated within a vacuum processing chamber, a sensor for monitoring process parameters during processing operation of the plasma processor, a processed-result estimation model for estimating a processed result on the basis of a monitored output of the sensor and a preset processed-result prediction equation, and an optimum recipe calculation model for calculating correction values of processing conditions on the basis of an estimated result of the processed-result estimation model in such a manner that the processed result becomes a target value. The plasma processor is controlled on the basis of a recipe generated by the optimum recipe calculation model.
    Type: Application
    Filed: January 24, 2003
    Publication date: June 19, 2003
    Inventors: Akira Kagoshima, Hideyuki Yamamoto, Shoji Ikuhara, Toshio Masuda, Hiroyuki Kitsunai, Junichi Tanaka, Natsuyo Morioka, Kenji Tamaki
  • Publication number: 20030045009
    Abstract: A method and system are provided for controlling and/or monitoring a semiconductor processing apparatus while predicting its processing results.
    Type: Application
    Filed: September 6, 2001
    Publication date: March 6, 2003
    Inventors: Junichi Tanaka, Hiroyuki Kitsunai, Akira Kagoshima, Daisuke Shiraishi, Hideyuki Yamamoto, Shoji Ikuhara, Toshio Masuda
  • Publication number: 20030045007
    Abstract: A method and system are provided for controlling and/or monitoring a semiconductor processing apparatus while predicting its processing results.
    Type: Application
    Filed: July 17, 2002
    Publication date: March 6, 2003
    Inventors: Junichi Tanaka, Hiroyuki Kitsunai, Akira Kagoshima, Daisuke Shiraishi, Hideyuki Yamamoto, Shoji Ikuhara, Toshio Masuda
  • Publication number: 20030040191
    Abstract: By conducting etching treatment using at least two steps with different compositions of gases for each step, and at least one step comprising using a gas capable of decomposing and vaporizing etching products in an etching apparatus continuously, semicondictor devices can be produced with high productivity, low contaminant and good reproducibility of treatment state.
    Type: Application
    Filed: September 6, 2001
    Publication date: February 27, 2003
    Inventors: Hiroyuki Kitsunai, Junichi Tanaka, Takashi Fujii, Motohiko Yoshigai
  • Publication number: 20030003607
    Abstract: A plasma processing control system and method which can suppress influences caused by disturbances. The control system includes a plasma processor for performing processing operation over a sample accommodated within a vacuum processing chamber, a sensor for monitoring process parameters during processing operation of the plasma processor, a processed-result estimation model for estimating a processed result on the basis of a monitored output of the sensor and a preset processed-result prediction equation, and an optimum recipe calculation model for calculating correction values of processing conditions on the basis of an estimated result of the processed-result estimation model in such a manner that the processed result becomes a target value. The plasma processor is controlled on the basis of a recipe generated by the optimum recipe calculation model.
    Type: Application
    Filed: September 6, 2001
    Publication date: January 2, 2003
    Inventors: Akira Kagoshima, Hideyuki Yamamoto, Shoji Ikuhara, Toshio Masuda, Hiroyuki Kitsunai, Junichi Tanaka, Natsuyo Morioka, Kenji Tamaki
  • Publication number: 20020123816
    Abstract: A monitor data acquisition section acquires a plurality of monitor data relating to a processing state of one sample in a processing apparatus, via sensors. A data selection section selects monitor data belonging to an arbitrary processing division included in a plurality of processing divisions for the sample, from among the plurality of monitor data. A monitoring signal generation section generates monitoring signals based on the monitor data belonging to the arbitrary processing division selected by the data selection section. A display setting controller displays a plurality of monitoring signals obtained with respect to samples processed in the processing apparatus, on a display section in a time series manner.
    Type: Application
    Filed: September 5, 2001
    Publication date: September 5, 2002
    Inventors: Junichi Tanaka, Hiroyuki Kitsunai, Hideyuki Yamamoto, Shoji Ikuhara, Kazue Takahashi
  • Publication number: 20020104832
    Abstract: A plasma processing apparatus having a process chamber to process specimens, further comprising a status detecting means for detecting the internal processing status of said process chamber and outputting a plurality of signals and signal converting means for extracting an arbitrary number of signal processing filters from a signal filter database by a signal filter selecting means and creating arbitrary number of device status signals; wherein said signal converting means create a fewer effective device status signals of a time series from said output signals.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 8, 2002
    Inventors: Junichi Tanaka, Hiroyuki Kitsunai, Ryoji Nishio, Seiichiro Kanno, Hideyuki Yamamoto
  • Patent number: 6186153
    Abstract: Providing a dry cleaning method capable of removing deposition films which adhere to the inner walls of a semiconductor manufacturing apparatus-that is, removing dust production sources therefrom. To this end, the dry cleaning process is supplemented by a step of removing either ion sputtered matter or products of the internal member materials of the apparatus or chemical compounds of such apparatus internal member materials and of an etching gas, in addition to a step of removing etching reaction products. It thus becomes possible to eliminate dust generation due to pealing off of deposition films with an increase in the number of wafers being processed, which in turn increases the manufacturing yield and working efficiency of the manufacturing apparatus.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: February 13, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Hiroyuki Kitsunai, Nobuo Tsumaki, Shigeru Kakuta, Kazuo Nojiri, Kazue Takahashi
  • Patent number: 5258047
    Abstract: A device for holding an object by electrostatic force includes a body made of a dielectric of a low resistivity, such as SiC, and an electrode provided on that surface of the device body facing away from a holder surface, so that a potential difference is produced between the object and the holder surface. A change-over switch for grounding the device body to an earth potential of an ambient environment is provided, so that the dielectric can be rapidly brought into a potential equal to the earth potential.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: November 2, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Hiromitsu Tokisue, Hiroyuki Kitsunai, Nobuo Tsumaki, Hiroshi Inouye
  • Patent number: 4708350
    Abstract: A magnetic liquid seal retains a magnetic liquid by means of the magnetic force applied thereto from a magnet. The magnet is constituted by a magnetized deformable member.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: November 24, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Muneo Mizumoto, Hiroshi Inouye, Hiroyuki Kitsunai