Patents by Inventor Sena FUJITA

Sena FUJITA 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: 11915914
    Abstract: A film forming method includes: preparing a substrate having a surface on which a first film containing boron and a second film made of a material different from that of the first film are formed; supplying a raw material gas, which contains halogen and an element X other than halogen, to the surface of the substrate; and supplying a plasmarized reaction gas, which contains oxygen, to the surface of the substrate, wherein a third film as an oxide film of the element X is selectively formed on the second film with respect to the first film by alternately supplying the raw material gas and the plasmarized reaction gas.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: February 27, 2024
    Assignee: Tokyo Electron Limited
    Inventors: Sena Fujita, Hiroki Murakami
  • Publication number: 20230243031
    Abstract: A film forming method includes: supplying a liquid to a concave portion of a substrate whose surface includes the concave portion and a convex portion which are adjacent to each other; and selectively forming a film on a top surface of the convex portion of the surface of the substrate by supplying a processing gas, which chemically changes the liquid, to the surface of the substrate, and moving the liquid from the concave portion to the top surface of the convex portion by a reaction between the processing gas and the liquid.
    Type: Application
    Filed: April 27, 2021
    Publication date: August 3, 2023
    Inventors: Sena FUJITA, Tadashi MITSUNARI, Takamichi KIKUCHI
  • Publication number: 20230135342
    Abstract: A film forming method includes: preparing a substrate having a surface on which a first film containing boron and a second film made of a material different from that of the first film are formed; supplying a raw material gas, which contains halogen and an element X other than halogen, to the surface of the substrate; and supplying a plasmarized reaction gas, which contains oxygen, to the surface of the substrate, wherein a third film as an oxide film of the element X is selectively formed on the second film with respect to the first film by alternately supplying the raw material gas and the plasmarized reaction gas.
    Type: Application
    Filed: October 31, 2022
    Publication date: May 4, 2023
    Inventors: Sena FUJITA, Hiroki MURAKAMI
  • Publication number: 20220364228
    Abstract: A cleaning method according to an aspect of the present disclosure includes: supplying a halogen-containing gas that does not contain fluorine to an interior of a processing container that is capable of being exhausted via an exhaust pipe to perform a cleaning; and supplying a fluorine-containing gas to at least one of the interior of the processing container and an interior of the exhaust pipe to perform the cleaning after the supplying the halogen-containing gas to perform the cleaning.
    Type: Application
    Filed: August 6, 2020
    Publication date: November 17, 2022
    Inventors: Yoshihiro TAKEZAWA, Daisuke SUZUKI, Hiroyuki HAYASHI, Tatsuya MIYAHARA, Keisuke FUJITA, Masami OIKAWA, Sena FUJITA
  • Patent number: 11410847
    Abstract: There is provided a film forming method including: supplying a halogen-free silicon raw material gas and a halogen-containing silicon raw material gas into a processing container while lowering a temperature of a substrate accommodated in the processing container from a first temperature to a second temperature in a temperature lowering process; and supplying the halogen-free silicon raw material gas and the halogen-containing silicon raw material gas into the processing container while maintaining the temperature of the substrate at a third temperature in a temperature stabilizing process, that occurs after the temperature lowering process.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: August 9, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Hiroyuki Hayashi, Sena Fujita, Keita Kumagai, Keisuke Fujita
  • Patent number: 11260433
    Abstract: There is provided a cleaning method of a substrate processing apparatus comprising cleaning an inside of an exhaust pipe through which a gas of an inside of a processing container is exhausted. The cleaning the inside of the exhaust pipe includes: removing a deposit on a downstream side of an opening/closing valve in the exhaust pipe by supplying a first exhaust pipe cleaning gas containing fluorine to the downstream side of the opening/closing valve in the exhaust pipe in a state in which the opening/closing valve provided in a middle of the exhaust pipe is closed; and removing a deposit on an upstream side of the opening/closing valve in the exhaust pipe by supplying a second exhaust pipe cleaning gas not containing fluorine as a gas constituent element to the inside of the processing container in a state in which the opening/closing valve is opened.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: March 1, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Yoshihiro Takezawa, Daisuke Suzuki, Hiroyuki Hayashi, Sena Fujita, Tatsuya Miyahara, Jyunji Ariga, Shinya Kikuchi
  • Publication number: 20200312661
    Abstract: There is provided a film forming method including: supplying a halogen-free silicon raw material gas and a halogen-containing silicon raw material gas into a processing container while lowering a temperature of a substrate accommodated in the processing container from a first temperature to a second temperature in a temperature lowering process; and supplying the halogen-free silicon raw material gas and the halogen-containing silicon raw material gas into the processing container while maintaining the temperature of the substrate at a third temperature in a temperature stabilizing process, that occurs after the temperature lowering process.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Inventors: Hiroyuki HAYASHI, Sena FUJITA, Keita KUMAGAI, Keisuke FUJITA
  • Publication number: 20200312677
    Abstract: A substrate processing apparatus includes a processing container configured to accommodate a plurality of substrates therein, a gas supply configured to supply a first raw material gas of a compound containing Si or Ge and H and a second raw material gas of a compound containing Si or Ge and a halogen element into the processing container; and an exhauster configured to evacuate an inside of the processing container, wherein the gas supply has a dispersion nozzle provided with a plurality of gas holes for discharging the first raw material gas and the second raw material gas, and the substrate processing apparatus further comprises a heater configured to heat the first raw material gas and the second raw material gas in the dispersion nozzle.
    Type: Application
    Filed: March 17, 2020
    Publication date: October 1, 2020
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yoshihiro TAKEZAWA, Keita KUMAGAI, Keisuke FUJITA, Hiroyuki HAYASHI, Daisuke Suzuki, Rui KANEMURA, Sena FUJITA
  • Publication number: 20200230666
    Abstract: There is provided a cleaning method of a substrate processing apparatus comprising cleaning an inside of an exhaust pipe through which a gas of an inside of a processing container is exhausted. The cleaning the inside of the exhaust pipe includes: removing a deposit on a downstream side of an opening/closing valve in the exhaust pipe by supplying a first exhaust pipe cleaning gas containing fluorine to the downstream side of the opening/closing valve in the exhaust pipe in a state in which the opening/closing valve provided in a middle of the exhaust pipe is closed; and removing a deposit on an upstream side of the opening/closing valve in the exhaust pipe by supplying a second exhaust pipe cleaning gas not containing fluorine as a gas constituent element to the inside of the processing container in a state in which the opening/closing valve is opened.
    Type: Application
    Filed: January 16, 2020
    Publication date: July 23, 2020
    Inventors: Yoshihiro TAKEZAWA, Daisuke SUZUKI, Hiroyuki HAYASHI, Sena FUJITA, Tatsuya MIYAHARA, Jyunji ARIGA, Shinya KIKUCHI
  • Publication number: 20190284687
    Abstract: In a method of cleaning a film-forming apparatus, having a processing container configured to accommodate a substrate therein and to perform film-forming processing in a state in which a pressure-reduced atmosphere is formed therein and a pressure gauge configured to monitor a pressure in the processing container, the method includes supplying a cleaning gas for removing a film formed by the film-forming processing to an inside of the processing container in which the film-forming processing has been performed and to the pressure gauge.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 19, 2019
    Inventors: Tatsuya MIYAHARA, Masahisa WATANABE, Sena FUJITA