Patents by Inventor Shuuichi Nishikido

Shuuichi Nishikido 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: 6503003
    Abstract: A solvent of a resist solution is dropped from a solvent supply nozzle onto the surface of a semiconductor wafer held by a spin chuck. The semiconductor wafer is rotated by the spin chuck to spread the resist solution over the entire surface of the semiconductor wafer W. Simultaneously, the resist solution is dropped from a resist solution supply nozzle onto the semiconductor wafer and spread following the solvent. During the processing, the processing space is isolated from the outer atmosphere by closing a lid of a processing vessel and a sprayed solvent is supplied into the processing space. The processing space is thus filled with the mist of solvent. In the processing space supplied with the solvent, evaporation of the solvent from the resist solution is suppressed. A film of the resist solution is formed with a uniform film thickness to the edge of the semiconductor wafer W.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: January 7, 2003
    Assignee: Tokyo Electron Limited
    Inventors: Keizo Hasebe, Shuuichi Nishikido, Nobuo Konishi, Takayuki Toshima, Kazutoshi Yoshioka
  • Patent number: 6402399
    Abstract: A developing method comprising, a step of holding a substrate in substantially a horizontal position, the substrate coated with a photoresist film which has a pattern-exposed region where a predetermined circuit pattern is formed by light exposure, and a step of developing the photoresist film by starting to apply, at a time, a developing solution to the entire pattern-exposed region of the photoresist film.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: June 11, 2002
    Assignee: Tokyo Electron Limited
    Inventors: Kazuo Sakamoto, Shuuichi Nishikido
  • Publication number: 20010016121
    Abstract: A developing method comprising, a step of holding a substrate in substantially a horizontal position, the substrate coated with a photoresist film which has a pattern-exposed region where a predetermined circuit pattern is formed by light exposure, and a step of developing the photoresist film by starting to apply, at a time, a developing solution to the entire pattern-exposed region of the photoresist film.
    Type: Application
    Filed: April 18, 2001
    Publication date: August 23, 2001
    Inventors: Kazuo Sakamoto, Shuuichi Nishikido
  • Publication number: 20010014224
    Abstract: A solvent of a resist solution is dropped from a solvent supply nozzle onto the surface of a semiconductor wafer held by a spin chuck. The semiconductor wafer is rotated by the spin chuck to spread the resist solution over the entire surface of the semiconductor wafer W. Simultaneously, the resist solution is dropped from a resist solution supply nozzle onto the semiconductor wafer and spread following the solvent. During the processing, the processing space is isolated from the outer atmosphere by closing a lid of a processing vessel and a sprayed solvent is supplied into the processing space. The processing space is thus filled with the mist of solvent. In the processing space supplied with the solvent, evaporation of the solvent from the resist solution is suppressed. A film of the resist solution is formed with a uniform film thickness to the edge of the semiconductor wafer W.
    Type: Application
    Filed: March 26, 2001
    Publication date: August 16, 2001
    Inventors: Keizo Hasebe, Shuuichi Nishikido, Nobuo Konishi, Takayuki Toshima, Kazutoshi Yoshioka
  • Publication number: 20010009135
    Abstract: A solvent of a resist solution is dropped from a solvent supply nozzle onto the surface of a semiconductor wafer held by a spin chuck. The semiconductor wafer is rotated by the spin chuck to spread the resist solution over the entire surface of the semiconductor wafer W. Simultaneously, the resist solution is dropped from a resist solution supply nozzle onto the semiconductor wafer and spread following the solvent. During the processing, the processing space is isolated from the outer atmosphere by closing a lid of a processing vessel and a sprayed solvent is supplied into the processing space. The processing space is thus filled with the mist of solvent. In the processing space supplied with the solvent, evaporation of the solvent from the resist solution is suppressed. A film of the resist solution is formed with a uniform film thickness to the edge of the semiconductor wafer W.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Inventors: Keizo Hasebe, Shuuichi Nishikido, Nobuo Konishi, Takayuki Toshima, Kazutoshi Yoshioka
  • Patent number: 6241403
    Abstract: A developing method comprising, a step of holding a substrate in substantially a horizontal position, the substrate coated with a photoresist film which has a pattern-exposed region where a predetermined circuit pattern is formed by light exposure, and a step of developing the photoresist film by starting to apply, at a time, a developing solution to the entire pattern-exposed region of the photoresist film.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: June 5, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Kazuo Sakamoto, Shuuichi Nishikido
  • Patent number: 6228561
    Abstract: A solvent of a resist solution is dropped from a solvent supply nozzle onto the surface of a semiconductor wafer held by a spin chuck. The semiconductor wafer is rotated by the spin chuck to spread the resist solution over the entire surface of the semiconductor wafer W. Simultaneously, the resist solution is dropped from a resist solution supply nozzle onto the semiconductor wafer and spread following the solvent. During the processing, the processing space is isolated from the outer atmosphere by closing a lid of a processing vessel and a sprayed solvent is supplied into the processing space. The processing space is thus filled with the mist of solvent. In the processing space supplied with the solvent, evaporation of the solvent from the resist solution is suppressed. A film of the resist solution is formed with a uniform film thickness to the edge of the semiconductor wafer W.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: May 8, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Keizo Hasebe, Shuuichi Nishikido, Nobuo Konishi, Takayuki Toshima, Kazutoshi Yoshioka