Patents by Inventor Shigeru Nakajima

Shigeru Nakajima 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: 9466478
    Abstract: A method of forming an oxide film on an object to be processed, includes: supplying a film-forming raw material gas into a processing chamber; performing at least one of exhausting the processing chamber and supplying a purge gas into the processing chamber to remove gas remaining in the processing chamber; supplying an oxidant gas into the processing chamber; and performing at least one of exhausting the processing chamber and supplying the purge gas into the processing chamber to remove gas remaining in the processing chamber, wherein supplying an oxidant gas includes: supplying a first oxidant gas into the processing chamber at a first concentration; and supplying a second oxidant gas into the processing chamber at a second concentration higher than the first concentration.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: October 11, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akira Shimizu, Tsuyoshi Tsunatori, Shigeru Nakajima
  • Patent number: 9422624
    Abstract: The present disclosure provides a heat treatment method, in which a substrate supporter supporting a plurality of substrates in the configuration of a shelf thereon is loaded in a vertical reaction tube surrounded by a heating mechanism and a heat treatment is performed. The method includes discharging a processing gas from a gas nozzle provided in the reaction tube to extend in a vertical direction of the substrate supporter, and supplying a temperature adjusting fluid into a flow path forming member provided to surround the gas nozzle in the reaction tube and adjusting a temperature of the processing gas in the gas nozzle.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 23, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shigeru Nakajima, Hiromi Shima, Yusuke Tachino
  • Patent number: 9145604
    Abstract: A thin film forming method which forms a seed film and an impurity-containing silicon film on a surface of an object to be processed in a processing container configured to be vacuum exhaustible includes: performing a first step which forms the seed film by supplying a seed film raw material gas including at least any one of an aminosilane-based gas and a higher silane into the processing container; and performing a second step which forms the impurity-containing silicon film in an amorphous state by supplying a silane-based gas and an impurity-containing gas into the processing container.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 29, 2015
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akinobu Kakimoto, Atsushi Endo, Takahiro Miyahara, Shigeru Nakajima, Satoshi Takagi, Kazumasa Igarashi
  • Publication number: 20150270126
    Abstract: A thin film forming method which forms a seed film and an impurity-containing silicon film on a surface of an object to be processed in a processing container configured to be vacuum exhaustible, the thin film forming method includes: performing a first step which forms the seed film formed of a compound of silicon, carbon and nitrogen on the surface of the object by supplying a seed film raw material gas comprising an aminosilane-based gas into the processing container; and performing a second step which forms the impurity-containing silicon film in an amorphous state on the seed film by supplying a silane-based gas and an impurity-containing gas into the processing container.
    Type: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Inventors: Akinobu KAKIMOTO, Atsushi ENDO, Takahiro MIYAHARA, Shigeru NAKAJIMA, Satoshi TAKAGI, Kazumasa IGARASHI
  • Publication number: 20150259792
    Abstract: A method of forming a titanium carbonitride film is provided. In one embodiment, the method of forming the titanium carbonitride film includes performing a cycle a plurality of times to form a titanium carbonitride film. Each cycle performed a plurality of times includes supplying a raw material gas of titanium into a process chamber in which a process object is accommodated, and simultaneously supplying a first gas containing carbon and hydrogen and a second gas containing nitrogen into the process chamber.
    Type: Application
    Filed: March 16, 2015
    Publication date: September 17, 2015
    Inventors: Shigeru NAKAJIMA, Hiromi SHIMA, Yusuke TACHINO
  • Publication number: 20150211113
    Abstract: A vertical heat treatment apparatus is configured that a substrate supporter supporting a plurality of substrates in the configuration of a shelf thereon is loaded in a vertical reaction tube surrounded by a heating mechanism and a heat treatment is performed. The vertical heat treatment apparatus includes: a gas nozzle provided in the reaction tube to extend in a vertical direction of the substrate supporter and configured to discharge a processing gas; and a flow path forming member provided to surround the gas nozzle in the reaction tube, wherein the flow path forming member defines a fluid flowing space of a temperature adjusting fluid for adjusting a temperature of the processing gas in the gas nozzle and includes a supply hole and an exhaust hole to supply the temperature adjusting fluid.
    Type: Application
    Filed: January 23, 2015
    Publication date: July 30, 2015
    Inventors: Shigeru NAKAJIMA, Hiromi SHIMA, Yusuke TACHINO
  • Publication number: 20140331928
    Abstract: A method of forming a germanium thin film on an underlying film includes forming a germanium seed layer by absorbing a germanium on a surface of the underlying film using an aminogermane-based gas, and forming a germanium thin film on the germanium seed layer using a germane-based gas.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 13, 2014
    Inventors: Akinobu KAKIMOTO, Shigeru NAKAJIMA, Kazuhide HASEBE
  • Publication number: 20140295677
    Abstract: A method of forming an oxide film on an object to be processed, includes: supplying a film-forming raw material gas into a processing chamber; performing at least one of exhausting the processing chamber and supplying a purge gas into the processing chamber to remove gas remaining in the processing chamber; supplying an oxidant gas into the processing chamber; and performing at least one of exhausting the processing chamber and supplying the purge gas into the processing chamber to remove gas remaining in the processing chamber, wherein supplying an oxidant gas includes: supplying a first oxidant gas into the processing chamber at a first concentration; and supplying a second oxidant gas into the processing chamber at a second concentration higher than the first concentration.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akira Shimizu, Tsuyoshi Tsunatori, Shigeru Nakajima
  • Publication number: 20140290577
    Abstract: Provided is a method of controlling a gas supply apparatus including a vaporizer, a carrier gas supply source and a gas supply line, the method including: supplying a liquid or sold raw material to a raw material container included in a vaporizer; vaporizing the liquid or sold raw material in the raw material container to produce a raw material gas; exhausting an interior of the raw material container having the liquid or sold raw material; supplying a carrier gas from the carrier gas supply source to the raw material container; and flowing the raw material gas and the carrier gas from the raw material container to a processing chamber in which a substrate to be processed is accommodated via the gas supply line.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Shigeru NAKAJIMA, Hiromi SHIMA, Yusuke TACHINO
  • Patent number: 8815714
    Abstract: A method of forming a germanium thin film on an underlying film includes forming a germanium seed layer by absorbing a germanium on a surface of the underlying film using an aminogermane-based gas, and forming a germanium thin film on the germanium seed layer using a germane-based gas.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: August 26, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Akinobu Kakimoto, Shigeru Nakajima, Kazuhide Hasebe
  • Publication number: 20130230975
    Abstract: A method of forming a germanium thin film on an underlying film includes forming a germanium seed layer by absorbing a germanium on a surface of the underlying film using an aminogermane-based gas, and forming a germanium thin film on the germanium seed layer using a germane-based gas.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 5, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akinobu KAKIMOTO, Shigeru NAKAJIMA, Kazuhide HASEBE
  • Patent number: 8426117
    Abstract: In a mask pattern forming method, a resist film is formed over a thin film, the resist film is processed into resist patterns having a predetermined pitch by photolithography, slimming of the resist patterns is performed, and an oxide film is formed on the thin film and the resist patterns after an end of the slimming step in a film deposition apparatus by supplying a source gas and an oxygen radical or an oxygen-containing gas. In the mask pattern forming method, the slimming and the oxide film forming are continuously performed in the film deposition apparatus.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: April 23, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
  • Publication number: 20130084693
    Abstract: A thin film forming method which forms a seed film and an impurity-containing silicon film on a surface of an object to be processed in a processing container configured to be vacuum exhaustible includes: performing a first step which forms the seed film by supplying a seed film raw material gas including at least any one of an aminosilane-based gas and a higher silane into the processing container; and performing a second step which forms the impurity-containing silicon film in an amorphous state by supplying a silane-based gas and an impurity-containing gas into the processing container.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 4, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akinobu KAKIMOTO, Atsushi ENDO, Takahiro MIYAHARA, Shigeru NAKAJIMA, Satoshi TAKAGI, Kazumasa IGARASHI
  • Patent number: 8383522
    Abstract: There is provided a micro pattern forming method including forming a thin film on a substrate; forming a film serving as a mask when processing the thin film; processing the film serving as a mask into a pattern including lines having a preset pitch; trimming the pattern including the lines; and forming an oxide film on the pattern including the lines and on the thin film by alternately supplying a source gas and an activated oxygen species. Here, the process of trimming the pattern and the process of forming an oxide film are consecutively performed in a film forming apparatus configured to form the oxide film.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: February 26, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Shigeru Nakajima, Kazuhide Hasebe, Pao-Hwa Chou, Mitsuaki Iwashita, Reiji Niino
  • Patent number: 8357619
    Abstract: A silicon-containing insulating film is formed on a target substrate by CVD, in a process field to be selectively supplied with a first process gas including di-iso-propylaminosilane gas and a second process gas including an oxidizing gas or nitriding gas. The film is formed by performing a plurality of times a cycle alternately including first and second steps. The first step performs supply of the first process gas, thereby forming an adsorption layer containing silicon on a surface of the target substrate. The second performs supply of the second process gas, thereby oxidizing or nitriding the adsorption layer on the surface of the target substrate. The second step includes an excitation period of supplying the second process gas to the process field while exciting the second process gas by an exciting mechanism.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: January 22, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa
  • Patent number: 8349401
    Abstract: A method for using a film formation apparatus includes performing a main cleaning process and a post cleaning process in this order inside a reaction chamber. The main cleaning process is arranged to supply a cleaning gas containing fluorine into the reaction chamber while exhausting gas from inside the reaction chamber, thereby etching a film formation by-product containing silicon. The post cleaning process is arranged to remove a silicon-containing fluoride generated by the main cleaning process and remaining inside the reaction chamber and to alternately repeat, a plurality of times, supplying an oxidizing gas into the reaction chamber to transform the silicon-containing fluoride into an intermediate product by oxidization, and supplying hydrogen fluoride gas into the reaction chamber while exhausting gas from inside the reaction chamber to remove the intermediate product by a reaction between the hydrogen fluoride gas and the intermediate product.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: January 8, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Jun Sato, Kiyotaka Kikuchi, Hiroki Murakami, Shigeru Nakajima, Kazuhide Hasebe
  • Patent number: 8318824
    Abstract: Disclosed is a hydrophilic polyolefin sintered material which is a water-absorbing sintered material of a polyolefin resin ice having a graft chain composed of at least one molecular chain selected from hydrophilic ethylenically unsaturated group-containing monomers and their polymers. This hydrophilic polyolefin sintered material has an average porosity of 20-80% by volume and an open cell having an average pore diameter of 1-150 ?m.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: November 27, 2012
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Naoki Matsuoka, Minoru Yamamoto, Shigeru Nakajima, Takahiro Deguchi
  • Patent number: 8168270
    Abstract: An oxide film is formed on a target substrate by CVD, in a process field to be selectively supplied with a first process gas including a source gas containing a film source element and no amino group, a second process gas including an oxidizing gas, and a third process gas including a preliminary treatment gas. A first step includes an excitation period of supplying the third process gas excited by an exciting mechanism, thereby performing a preliminary treatment on the target substrate by preliminary treatment gas radicals. A second step performs supply of the first process gas, thereby adsorbing the film source element on the target substrate. A third step includes an excitation period of supplying the second process gas excited by an exciting mechanism, thereby oxidizing the film source element adsorbed on the target substrate by oxidizing gas radicals.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: May 1, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Kazuhide Hasebe, Yoshihiro Ishida, Takehiko Fujita, Jun Ogawa, Shigeru Nakajima
  • Patent number: 8168375
    Abstract: Disclosed is a patterning method including: forming a first film on a substrate; forming a multi-layered film including a resist film on the first film; forming a patterned resist film having a preset pattern by patterning the resist film by photolithography; forming a silicon oxide film different from the first film on the patterned resist film and the first film by alternately supplying a first gas containing organic silicon and a second gas containing an activated oxygen species to the substrate; etching the silicon oxide film to thereby form a sidewall spacer on a sidewall of the patterned resist film; removing the patterned resist film; and processing the first film by using the sidewall spacer as a mask.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 1, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Shigeru Nakajima, Kazuhide Hasebe, Pao-Hwa Chou, Mitsuaki Iwashita, Reiji Niino
  • Publication number: 20120095121
    Abstract: Disclosed is a hydrophilic polyolefin sintered material which is a water-absorbing sintered material of a polyolefin resin ice having a graft chain composed of at least one molecular chain selected from hydrophilic ethylenically unsaturated group-containing monomers and their polymers. This hydrophilic polyolefin sintered material has an average porosity of 20-80% by volume and an open cell having an average pore diameter of 1-150 ?m.
    Type: Application
    Filed: July 24, 2008
    Publication date: April 19, 2012
    Inventors: Naoki Matsuoka, Minoru Yamamoto, Shigeru Nakajima, Takahiro Deguchi