Patents by Inventor Takeru Kuwano

Takeru Kuwano 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: 11827981
    Abstract: A method for depositing material is disclosed. An exemplary method includes positioning a substrate provided with a stepped structure comprising a top surface, a bottom surface, and a sidewall in a reaction chamber; controlling a pressure of the reaction chamber to a process pressure; providing a precursor; providing a reactant; and, providing a plasma with a RF plasma power, wherein by simultaneously providing the precursor, the reactant, and the plasma while controlling the process pressure to less than or equal to 200 Pa and controlling the RF plasma power to more than or equal to 0.21 W per cm2 the material is deposited on the top surface, the bottom surface, and the sidewall of the stepped structure.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: November 28, 2023
    Assignee: ASM IP Holding B.V.
    Inventors: Kentaro Kojima, Takeru Kuwano, Eiichiro Shiba
  • Patent number: 11821078
    Abstract: A method for forming a precoat film on a metal surface in a chamber before forming a silicon-containing film having an identical composition system with that of the precoat film on a substrate in the chamber using a PECVD method, wherein the precoat film is formed using a PEALD method in which a first gas and a second gas are supplied into the chamber by shifting timing of supply, the PEALD method comprises an adsorption step comprising supplying the first gas into the chamber so that the source gas component adsorbs on the metal surface, a first purge step comprising discharging an excessive source gas component not adsorbed on the metal surface, and a precoat film forming step comprising supplying the second gas into the chamber and applying high-frequency power to generate plasma in the reactant gas component in the second gas.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: November 21, 2023
    Assignee: ASM IP Holding B.V.
    Inventors: Takeru Kuwano, Eiichiro Shiba, Toshikazu Hamada, Yoshinori Ota
  • Publication number: 20220112602
    Abstract: A method for depositing material is disclosed. An exemplary method includes positioning a substrate provided with a stepped structure comprising a top surface, a bottom surface, and a sidewall in a reaction chamber; controlling a pressure of the reaction chamber to a process pressure; providing a precursor; providing a reactant; and, providing a plasma with a RF plasma power, wherein by simultaneously providing the precursor, the reactant, and the plasma while controlling the process pressure to less than or equal to 200 Pa and controlling the RF plasma power to more than or equal to 0.21 W per cm2 the material is deposited on the top surface, the bottom surface, and the sidewall of the stepped structure.
    Type: Application
    Filed: October 11, 2021
    Publication date: April 14, 2022
    Inventors: Kentaro Kojima, Takeru Kuwano, Eiichiro Shiba
  • Publication number: 20210324510
    Abstract: A method for forming a precoat film on a metal surface in a chamber before forming a silicon-containing film having an identical composition system with that of the precoat film on a substrate in the chamber using a PECVD method, wherein the precoat film is formed using a PEALD method in which a first gas and a second gas are supplied into the chamber by shifting timing of supply, the PEALD method comprises an adsorption step comprising supplying the first gas into the chamber so that the source gas component adsorbs on the metal surface, a first purge step comprising discharging an excessive source gas component not adsorbed on the metal surface, and a precoat film forming step comprising supplying the second gas into the chamber and applying high-frequency power to generate plasma in the reactant gas component in the second gas.
    Type: Application
    Filed: April 12, 2021
    Publication date: October 21, 2021
    Inventors: Takeru Kuwano, Eiichiro Shiba, Toshikazu Hamada, Yoshinori Ota