Patents by Inventor Eiji Kikama

Eiji Kikama 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: 11725284
    Abstract: A technique for improving uniformity in a plane of a substrate is provided. A substrate processing apparatus according an aspect of the present disclosure includes a processing container having a substantially cylindrical shape, a gas nozzle extending in a vertical direction along an inside of an inner wall of the processing container and forming a gas flow path therein, and a gas ejector provided on the processing container and communicating with the gas flow path, the gas ejector being configured to distribute a gas introduced from the gas nozzle and to eject the gas from an outer peripheral portion of the processing container.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: August 15, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Eiji Kikama, Chiaki Takeuchi
  • Patent number: 11567485
    Abstract: A substrate processing system includes: an acquiring unit configured to acquire process data of each step when each step included in a predetermined process is executed under different control conditions; an extracting unit configured to divide each step into a first section in which the process data fluctuates and a second section in which the process data is converged, and extract first data belonging to the first section and second data belonging to the second section from the process data; and a monitoring unit configured to monitor the process data by comparing one or both of an evaluation value that evaluates the first data and an evaluation value that evaluates the second data with corresponding upper and lower limit values.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: January 31, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Nobutoshi Terasawa, Noriaki Koyama, Tomonori Yamashita, Takazumi Tanaka, Takehiro Kinoshita, Fumiaki Nagai, Eiji Kikama
  • Publication number: 20220270940
    Abstract: An abnormality detection method includes: supplying a gas controlled to a selected rate to a gas supply pipe via the gas pipe connected to the gas supply pipe, thereby introducing the gas into a reaction region of a processing container provided in a processing apparatus from a gas hole of the gas supply pipe; measuring a pressure inside the gas pipe by a pressure gauge attached to the gas pipe; and detecting an abnormality of at least one of the gas supply pipe and the gas pipe based on the pressure measured at the measuring.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 25, 2022
    Inventors: Shingo HISHIYA, Nobutoshi TERASAWA, Fumiaki NAGAI, Kazuaki SASAKI, Hiroaki KIKUCHI, Masayuki KITAMURA, Kazuo YABE, Motoshi FUKUDOME, Tatsuya MIYAHARA, Eiji KIKAMA, Yuki TANABE, Tomoyuki NAGATA
  • Publication number: 20210371983
    Abstract: A technique for improving uniformity in a plane of a substrate is provided. A substrate processing apparatus according an aspect of the present disclosure includes a processing container having a substantially cylindrical shape, a gas nozzle extending in a vertical direction along an inside of an inner wall of the processing container and forming a gas flow path therein, and a gas ejector provided on the processing container and communicating with the gas flow path, the gas ejector being configured to distribute a gas introduced from the gas nozzle and to eject the gas from an outer peripheral portion of the processing container.
    Type: Application
    Filed: May 21, 2021
    Publication date: December 2, 2021
    Inventors: Eiji KIKAMA, Chiaki TAKEUCHI
  • Patent number: 10968515
    Abstract: There is provided a vertical heat treatment apparatus for forming a film by supplying a precursor gas to a plurality of substrates that are held in a substantially horizontal posture on a substrate holder with a predetermined interval in a vertical direction. The apparatus includes a processing container including an inner tube accommodating the substrate holder and an outer tube that is disposed outside the inner tube; and a gas nozzle that extends vertically along an inner peripheral surface of the inner tube and has a distal end that penetrates from an inside of the inner tube to an outside of the inner tube. A first gas hole for supplying the precursor gas to the inside of the inner tube and a second gas hole for supplying the precursor gas to the outside of the inner tube are formed on the gas nozzle.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 6, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Eiji Kikama, Hiromi Shima, Kyungseok Ko, Shingo Hishiya, Keisuke Suzuki, Tosihiko Jo, Ken Itabashi, Satoru Ogawa
  • Patent number: 10964530
    Abstract: A method of forming a blocking silicon oxide film on a target surface on which a silicon oxide film and a silicon nitride film are exposed, includes: placing a workpiece having the target surface on which the silicon oxide film and the silicon nitride film are exposed in a processing container under a depressurized atmosphere; forming a spacer polysilicon film to be a sacrificial film on the target surface on which the silicon oxide film and the silicon nitride film are exposed; and substituting the spacer polysilicon film with a substitution silicon oxide film by supplying thermal energy, oxygen radicals and hydrogen radicals onto the workpiece.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: March 30, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kyungseok Ko, Hiromi Shima, Eiji Kikama, Keisuke Suzuki, Shingo Hishiya
  • Publication number: 20210011468
    Abstract: A substrate processing system includes: an acquiring unit configured to acquire process data of each step when each step included in a predetermined process is executed under different control conditions; an extracting unit configured to divide each step into a first section in which the process data fluctuates and a second section in which the process data is converged, and extract first data belonging to the first section and second data belonging to the second section from the process data; and a monitoring unit configured to monitor the process data by comparing one or both of an evaluation value that evaluates the first data and an evaluation value that evaluates the second data with corresponding upper and lower limit values.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 14, 2021
    Inventors: Nobutoshi TERASAWA, Noriaki KOYAMA, Tomonori YAMASHITA, Takazumi TANAKA, Takehiro KINOSHITA, Fumiaki NAGAI, Eiji KIKAMA
  • Patent number: 10781515
    Abstract: There is provided a method of forming a predetermined film by alternately supplying a film-forming raw material gas and a reaction gas onto a workpiece by an atomic layer deposition (ALD), the method including: beginning an ALD-based film formation at a first temperature at which an adsorption of the film-forming raw material gas occurs; continuing the ALD-based film formation while increasing the first temperature; and completing the ALD-based film formation at a second temperature at which a decomposition of the film-forming raw material gas occurs.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: September 22, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kyungseok Ko, Hiromi Shima, Eiji Kikama, Keisuke Suzuki
  • Patent number: 10553686
    Abstract: There is provided a method of forming a silicon oxide film on a target surface on which a silicon oxide film and a silicon nitride film are exposed. The method comprises placing a workpiece having the target surface on which the silicon oxide film and the silicon nitride film are exposed, in a processing container under a depressurized atmosphere; forming a spacer silicon nitride film to be a sacrificial film on the target surface on which the silicon oxide film and the silicon nitride film are exposed; and substituting the spacer silicon nitride film with a substitution silicon oxide film by supplying thermal energy, oxygen radicals and hydrogen radicals onto the workpiece.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: February 4, 2020
    Assignee: TOKYO ELECTRONC LIMITED
    Inventors: Kyungseok Ko, Hiromi Shima, Eiji Kikama, Shingo Hishiya
  • Publication number: 20190271074
    Abstract: There is provided a method of forming a predetermined film by alternately supplying a film-forming raw material gas and a reaction gas onto a workpiece by an atomic layer deposition (ALD), the method including: beginning an ALD-based film formation at a first temperature at which an adsorption of the film-forming raw material gas occurs; continuing the ALD-based film formation while increasing the first temperature; and completing the ALD-based film formation at a second temperature at which a decomposition of the film-forming raw material gas occurs.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 5, 2019
    Inventors: Kyungseok KO, Hiromi SHIMA, Eiji KIKAMA, Keisuke SUZUKI
  • Publication number: 20190186014
    Abstract: There is provided a vertical heat treatment apparatus for forming a film by supplying a precursor gas to a plurality of substrates that are held in a substantially horizontal posture on a substrate holder with a predetermined interval in a vertical direction. The apparatus includes a processing container including an inner tube accommodating the substrate holder and an outer tube that is disposed outside the inner tube; and a gas nozzle that extends vertically along an inner peripheral surface of the inner tube and has a distal end that penetrates from an inside of the inner tube to an outside of the inner tube. A first gas hole for supplying the precursor gas to the inside of the inner tube and a second gas hole for supplying the precursor gas to the outside of the inner tube are formed on the gas nozzle.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 20, 2019
    Inventors: Eiji Kikama, Hiromi Shima, Kyungseok Ko, Shingo Hishiya, Keisuke Suzuki, Tosihiko Jo, Ken Itabashi, Satoru Ogawa
  • Publication number: 20190131126
    Abstract: There is provided a method of forming a blocking silicon oxide film on a target surface on which a silicon oxide film and a silicon nitride film are exposed, including: placing a workpiece having the target surface on which the silicon oxide film and the silicon nitride film are exposed in a processing container under a depressurized atmosphere; forming a spacer polysilicon film to be a sacrificial film on the target surface on which the silicon oxide film and the silicon nitride film are exposed; and substituting the spacer polysilicon film with a substitution silicon oxide film by supplying thermal energy, oxygen radicals and hydrogen radicals onto the workpiece.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Kyungseok KO, Hiromi SHIMA, Eiji KIKAMA, Keisuke SUZUKI, Shingo HISHIYA
  • Publication number: 20190080913
    Abstract: There is provided a method of forming a silicon oxide film on a target surface on which a silicon oxide film and a silicon nitride film are exposed. The method comprises placing a workpiece having the target surface on which the silicon oxide film and the silicon nitride film are exposed, in a processing container under a depressurized atmosphere; forming a spacer silicon nitride film to be a sacrificial film on the target surface on which the silicon oxide film and the silicon nitride film are exposed; and substituting the spacer silicon nitride film with a substitution silicon oxide film by supplying thermal energy, oxygen radicals and hydrogen radicals onto the workpiece.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 14, 2019
    Inventors: Kyungseok KO, Hiromi SHIMA, Eiji KIKAMA, Shingo HISHIYA
  • Patent number: 8338312
    Abstract: A film formation method includes a film formation process for forming an SiO2 film on a surface of a target object inside a process container by use of an Si source gas and an oxidizing agent, and an oxidation purge process for performing oxidation on films deposited inside the process container while exhausting gas from inside the process container after unloading the target object from the process container, wherein the film formation process and the oxidation purge process are alternately repeated a plurality of times without, interposed therebetween, a process for removing the films deposited inside the process container.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: December 25, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Jun Sato, Eiji Kikama, Masataka Toiya, Tetsuya Shibata
  • Publication number: 20110201210
    Abstract: A film formation method includes a film formation process for forming an SiO2 film on a surface of a target object inside a process container by use of an Si source gas and an oxidizing agent, and an oxidation purge process for performing oxidation on films deposited inside the process container while exhausting gas from inside the process container after unloading the target object from the process container, wherein the film formation process and the oxidation purge process are alternately repeated a plurality of times without, interposed therebetween, a process for removing the films deposited inside the process container.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 18, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jun Sato, Eiji Kikama, Masataka Toiya, Tetsuya Shibata