Patents by Inventor Toshihiko Nishimori

Toshihiko Nishimori 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).

  • Publication number: 20070107843
    Abstract: In a film-forming apparatus for forming a thin film (15) on a substrate (6) by supplying a gas (13) through a gas nozzle (14) into a vacuum chamber (1) and transforming the gas (13) into a plasma by applying a current to a high-frequency antenna (7), a ceramic inner cylinder (20) is arranged so as to contact with the vacuum chamber (1) at only a small area of the cylinder for preventing adhesion of the film-forming component onto the inner wall of the vacuum chamber (1). In this film-forming apparatus, it is possible to suppress generation of particles and to reduce the workload of the cleaning process.
    Type: Application
    Filed: December 7, 2004
    Publication date: May 17, 2007
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yuichi Kawano, Tadashi Shimazu, Toshihiko Nishimori, Kazuto Yoshida
  • Patent number: 7208421
    Abstract: In a metal film production apparatus, a copper plate member is etched with a Cl2 gas plasma within a chamber to form a precursor comprising a Cu component and a Cl2 gas; and the temperatures of the copper plate member and a substrate and a difference between their temperatures are controlled as predetermined, to deposit the Cu component of the precursor on the substrate, thereby forming a film of Cu. In this apparatus, Cl* is formed in an excitation chamber of a passage communicating with the interior of the chamber to flow a Cl2 gas, and the Cl* is supplied into the chamber to withdraw a Cl2 gas from the precursor adsorbed onto the substrate, thereby promoting a Cu film formation reaction. The apparatus has a high film formation speed, can use an inexpensive starting material, and can minimize impurities remaining in the film.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: April 24, 2007
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hitoshi Sakamoto, Naoki Yahata, Toshihiko Nishimori, Yoshiyuki Ooba, Hiroshi Tonegawa, Ikumasa Koshiro, Yuzuru Ogura
  • Publication number: 20070087577
    Abstract: A Cl2 gas plasma is generated at a site within a chamber between a substrate and a metal member. The metal member is etched with the Cl2 gas plasma to form a precursor. A nitrogen gas is excited in a manner isolated from the chamber accommodating the substrate. A metal nitride is formed upon reaction between excited nitrogen and the precursor, and formed as a film on the substrate. After film formation of the metal nitride, a metal component of the precursor is formed as a film on the metal nitride on the substrate. In this manner, a barrier metal film with excellent burial properties and a very small thickness is produced at a high speed, with diffusion of metal being suppressed and adhesion to the metal being improved.
    Type: Application
    Filed: December 14, 2006
    Publication date: April 19, 2007
    Inventors: Hitoshi Sakamoto, Naoki Yahata, Ryuichi Matsuda, Yoshiyuki Ooba, Toshihiko Nishimori
  • Publication number: 20060191477
    Abstract: An apparatus for forming a metal film, including a reaction vessel in which a substrate to be treated is placed, a raw material gas feed pipe inserted into the inlet vessel for feeding chlorine or hydrogen chloride, a spiral tube attached to the inner end of the raw material gas feed pipe, having a raw material gas flow passage whose inner surface is made of copper, and equipped with a heating element, an atomic reducing gas producing device for producing an atomic reducing gas within the reaction vessel, at least in the neighborhood of the substrate to be treated, and an evacuation device for evacuating any gas from the reaction vessel and the raw material gas flow passage.
    Type: Application
    Filed: March 29, 2006
    Publication date: August 31, 2006
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hitoshi Sakamoto, Toshihiko Nishimori, Saneyuki Goya, Takao Abe, Noriaki Ueda
  • Publication number: 20060191481
    Abstract: An apparatus for forming a metal film, including a reaction vessel for housing a substrate, a precursor feeding device for bubbling a carrier gas through a liquid organometallic complex, vaporizing the organometallic complex, producing a precursor from the vaporized organometallic complex, and feeding the precursor into the reaction vessel, a rotating magnetic field generator for creating a rotating magnetic field in a space above the substrate, and a second plasma generator for generating a plasma from a reducing gas fed into the reaction vessel.
    Type: Application
    Filed: March 29, 2006
    Publication date: August 31, 2006
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hitoshi Sakamoto, Toshihiko Nishimori, Saneyuki Goya, Takao Abe, Noriaki Ueda
  • Publication number: 20060177583
    Abstract: A method for forming a metal film, including bringing a raw material gas containing a halogen into contact with a hot metallic filament, thereby etching the filament with the raw material gas to produce a precursor composed of a metallic component contained in the filament and the halogen contained in the raw material gas, producing an atomic reducing gas by heating a reducing gas to a high temperature, passing the precursor through the atomic reducing gas to remove the halogen from the precursor, and directing the resulting metallic ion or neutral metal onto a substrate to form a thin metal film on the substrate.
    Type: Application
    Filed: March 29, 2006
    Publication date: August 10, 2006
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hitoshi Sakamoto, Toshihiko Nishimori, Saneyuki Goya, Takao Abe, Noriaki Ueda
  • Publication number: 20060054593
    Abstract: A Cl2 gas plasma is generated at a site within a chamber between a substrate and a metal member. The metal member is etched with the Cl2 gas plasma to form a precursor. A nitrogen gas is excited in a manner isolated from the chamber accommodating the substrate. A metal nitride is formed upon reaction between excited nitrogen and the precursor, and formed as a film on the substrate. After film formation of the metal nitride, a metal component of the precursor is formed as a film on the metal nitride on the substrate. In this manner, a barrier metal film with excellent burial properties and a very small thickness is produced at a high speed, with diffusion of metal being suppressed and adhesion to the metal being improved.
    Type: Application
    Filed: October 19, 2005
    Publication date: March 16, 2006
    Inventors: Hitoshi Sakamoto, Naoki Yahata, Ryuichi Matsuda, Yoshiyuki Ooba, Toshihiko Nishimori
  • Publication number: 20050230830
    Abstract: In a metal film production apparatus, a copper plate member is etched with a Cl2 gas plasma within a chamber to form a precursor comprising a Cu component and a Cl2 gas; and the temperatures of the copper plate member and a substrate and a difference between their temperatures are controlled as predetermined, to deposit the Cu component of the precursor on the substrate, thereby forming a film of Cu. In this apparatus, Cl* is formed in an excitation chamber of a passage communicating with the interior of the chamber to flow a Cl2 gas, and the Cl* is supplied into the chamber to withdraw a Cl2 gas from the precursor adsorbed onto the substrate, thereby promoting a Cu film formation reaction. The apparatus has a high film formation speed, can use an inexpensive starting material, and can minimize impurities remaining in the film.
    Type: Application
    Filed: May 19, 2005
    Publication date: October 20, 2005
    Inventors: Hitoshi Sakamoto, Naoki Yahata, Toshihiko Nishimori, Yoshiyuki Ooba, Hiroshi Tonegawa, Ikumasa Koshiro, Yuzuru Ogura
  • Publication number: 20050217579
    Abstract: In a metal film production apparatus, a copper plate member is etched with a Cl2 gas plasma within a chamber to form a precursor comprising a Cu component and a Cl2 gas; and the temperatures of the copper plate member and a substrate and a difference between their temperatures are controlled as predetermined, to deposit the Cu component of the precursor on the substrate, thereby forming a film of Cu. In this apparatus, Cl* is formed in an excitation chamber of a passage communicating with the interior of the chamber to flow a Cl2 gas, and the Cl* is supplied into the chamber to withdraw a Cl2 gas from the precursor adsorbed onto the substrate, thereby promoting a Cu film formation reaction. The apparatus has a high film formation speed, can use an inexpensive starting material, and can minimize impurities remaining in the film.
    Type: Application
    Filed: May 19, 2005
    Publication date: October 6, 2005
    Inventors: Hitoshi Sakamoto, Naoki Yahata, Toshihiko Nishimori, Yoshiyuki Coba, Hiroshi Tonegawa, Ikumasa Koshiro, Yuzuru Ogura
  • Publication number: 20040091636
    Abstract: The present invention provides methods and apparatus for the formation of a thin noble metal film which can achieve a high rate of film growth, can use inexpensive raw materials, and do not allow any impurities to remain in the thin film.
    Type: Application
    Filed: October 15, 2003
    Publication date: May 13, 2004
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hitoshi Sakamoto, Toshihiko Nishimori, Saneyuki Goya, Takao Abe, Noriaki Ueda
  • Publication number: 20040058199
    Abstract: Provided are a hexagonal boron nitride film having a specific inductance of 3.0 or less, a hexagonal boron nitride film wherein the total content of the bonds between a nitrogen atom and a hydrogen atom and between a boron atom and a hydrogen atom is 4 mol % or less, a hexagonal boron nitride film in which a spacing in the c-axis direction is extended by 5 to 30% but the extension of a spacing in the a-axis direction is limited within 5% and a hexagonal boron nitride film in which the direction of the c-axis is parallel to a substrate. There is also provided a layer dielectric film using each of these hexagonal boron nitride films. Also, there is also provided a method of producing a hexagonal boron nitride film by using an ion deposition method.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 25, 2004
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Hitoshi Sakamoto, Toshihiko Nishimori, Hiroshi Sonobe, Yoshimichi Yonekura, Nobuki Yamashita
  • Publication number: 20040029384
    Abstract: In a metal film production apparatus, a copper plate member is etched with a Cl2 gas plasma within a chamber to form a precursor comprising a Cu component and a Cl2 gas; and the temperatures of the copper plate member and a substrate and a difference between their temperatures are controlled as predetermined, to deposit the Cu component of the precursor on the substrate, thereby forming a film of Cu. In this apparatus, Cl* is formed in an excitation chamber of a passage communicating with the interior of the chamber to flow a Cl2 gas, and the Cl* is supplied into the chamber to withdraw a Cl2 gas from the precursor adsorbed onto the substrate, thereby promoting a Cu film formation reaction. The apparatus has a high film formation speed, can use an inexpensive starting material, and can minimize impurities remaining in the film.
    Type: Application
    Filed: March 7, 2003
    Publication date: February 12, 2004
    Inventors: Hitoshi Sakamoto, Naoki Yahata, Toshihiko Nishimori, Yoshiyuki Ooba, Hiroshi Tonegawa, Ikumasa Koshiro, Yuzuru Ogura
  • Patent number: 6656540
    Abstract: The present invention provides methods and apparatus for the formation of a thin noble metal film which can achieve a high rate of film growth, can use inexpensive raw materials, and do not allow any impurities to remain in the thin film.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: December 2, 2003
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hitoshi Sakamoto, Toshihiko Nishimori, Saneyuki Goya, Takao Abe, Noriaki Ueda
  • Publication number: 20030091739
    Abstract: A Cl2 gas plasma is generated at a site within a chamber between a substrate and a metal member. The metal member is etched with the Cl2 gas plasma to form a precursor. A nitrogen gas is excited in a manner isolated from the chamber accommodating the substrate. A metal nitride is formed upon reaction between excited nitrogen and the precursor, and formed as a film on the substrate. After film formation of the metal nitride, a metal component of the precursor is formed as a film on the metal nitride on the substrate. In this manner, a barrier metal film with excellent burial properties and a very small thickness is produced at a high speed, with diffusion of metal being suppressed and adhesion to the metal being improved.
    Type: Application
    Filed: October 23, 2002
    Publication date: May 15, 2003
    Inventors: Hitoshi Sakamoto, Naoki Yahata, Ryuichi Matsuda, Yoshiyuki Ooba, Toshihiko Nishimori
  • Publication number: 20020142572
    Abstract: The present invention provides methods and apparatus for the formation of a thin noble metal film which can achieve a high rate of film growth, can use inexpensive raw materials, and do not allow any impurities to remain in the thin film.
    Type: Application
    Filed: November 27, 2001
    Publication date: October 3, 2002
    Inventors: Hitoshi Sakamoto, Toshihiko Nishimori, Saneyuki Goya, Takao Abe, Noriaki Ueda
  • Publication number: 20020000556
    Abstract: Provided are a hexagonal boron nitride film having a specific inductance of 3.0 or less, a hexagonal boron nitride film wherein the total content of the bonds between a nitrogen atom and a hydrogen atom and between a boron atom and a hydrogen atom is 4 mol % or less, a hexagonal boron nitride film in which a spacing in the c-axis direction is extended by 5 to 30% but the extension of a spacing in the a-axis direction is limited within 5% and a hexagonal boron nitride film in which the direction of the c-axis is parallel to a substrate. There is also provided a layer dielectric film using each of these hexagonal boron nitride films. Also, there is also provided a method of producing a hexagonal boron nitride film by using an ion deposition method.
    Type: Application
    Filed: June 15, 2001
    Publication date: January 3, 2002
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hitoshi Sakamoto, Toshihiko Nishimori, Hiroshi Sonobe, Yoshimichi Yonekura, Nobuki Yamashita