Patents by Inventor Syuji Nozawa

Syuji Nozawa 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: 10960435
    Abstract: A film forming apparatus includes: a film forming gas discharge part; an exhaust port; a rotation mechanism; a heating part configured to heat the interior of a reaction container to a temperature lower than a temperature of a film forming gas discharged from the film forming gas discharge part; first gas discharge holes opened, in the film forming gas discharge part, toward a gas temperature reducing member so that the film forming gas is cooled by colliding with the gas temperature reducing member inside the reaction container before the film forming gas is supplied to substrates; and second gas discharge holes opened, in the film forming gas discharge part, in a direction differing from an opening direction of the first gas discharge holes so that the film forming gas does not collide with the gas temperature reducing member before the film forming gas is supplied to the substrates.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: March 30, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Makoto Fujikawa, Reiji Niino, Hiroyuki Hashimoto, Tatsuya Yamaguchi, Syuji Nozawa
  • Patent number: 10957531
    Abstract: There is provided a method of manufacturing a semiconductor device, including: forming a polymer film, which is a film of a polymer having a urea bond generated by polymerization of plural types of monomers, around a plurality of structures provided on a substrate and including a first material; adjusting a shape of the polymer film; forming a temporary sealing film on the polymer film to cover the polymer film; and heating the polymer film to depolymerize the polymer into the plural types of monomers and desorb the plural types of depolymerized monomers through the temporary sealing film.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: March 23, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Syuji Nozawa, Tatsuya Yamaguchi, Nagisa Sato
  • Publication number: 20210047724
    Abstract: There is provided a film forming apparatus including: a processing container whose interior is kept in a vacuum atmosphere; a stage provided within the processing container and configured to place a substrate thereon; a first film-forming gas supply part configured to supply a first film-forming gas for forming an organic film on a member within the processing container; a second film-forming gas supply part configured to supply a second film-forming gas for forming a film on the substrate; and a modifying gas supply part configured to supply a modifying gas for modifying the organic film and to suppress a film from being formed on a surface of the organic film by the second film-forming gas.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Inventors: Syuji NOZAWA, Tatsuya YAMAGUCHI, Makoto FUJIKAWA
  • Publication number: 20210043447
    Abstract: A film forming apparatus comprises: a processing chamber in which a substrate is accommodated; a gas supply configured to supply a gas containing a first monomer and a gas containing a second monomer into the processing chamber; a concentration distribution controller configured to control a gas flow within the processing chamber such that a concentration of a mixed gas including the gas containing the first monomer and the gas containing the second monomer on the substrate has a predetermined distribution; and a temperature distribution controller configured to control a temperature distribution of the substrate such that a temperature of a first region of the substrate is higher than a temperature of a second region of the substrate, the concentration of the mixed gas in a region corresponding to the first region being higher than the concentration of the mixed gas in a region corresponding to the second region.
    Type: Application
    Filed: July 28, 2020
    Publication date: February 11, 2021
    Inventors: Syuji NOZAWA, Tatsuya YAMAGUCHI
  • Patent number: 10790135
    Abstract: There is provided a method of manufacturing a semiconductor device by performing a process on a substrate, comprising: forming a sacrificial film made of a polymer having a urea bond on a surface of the substrate by supplying a precursor for polymerization onto the surface of the substrate; subsequently, performing a step of changing a sectional shape of the sacrificial film and a step of adjusting a film thickness of the sacrificial film by heating the sacrificial film; subsequently, performing the process on the surface of the substrate; and subsequently, removing the sacrificial film.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: September 29, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Tatsuya Yamaguchi, Reiji Niino, Syuji Nozawa, Makoto Fujikawa
  • Publication number: 20200299840
    Abstract: A substrate processing method includes: forming a coating film so as to cover a front surface of the substrate, the substrate having a recess formed in the front surface and in which an organic film is formed; heating the substrate to turn the organic film into a gas, removing the gas from an interior of the recess by causing the gas to pass through the coating film, and forming in the substrate a sealed space surrounded by the recess and the coating film; supplying a processing gas into the sealed space; and irradiating the substrate with a light to activate the processing gas in the sealed space, causing a reaction product gas to pass through the coating film, and removing the reaction product gas, wherein the reaction product gas is generated by a reaction between a residue of the organic film and the activated processing gas in the sealed space.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 24, 2020
    Inventors: Tatsuya YAMAGUCHI, Syuji NOZAWA
  • Publication number: 20200294797
    Abstract: There is provided a substrate processing apparatus including: a processing container having a vacuum atmosphere formed therein; a stage provided within the processing container and configured to place a substrate on the stage; a film-forming gas supply part configured to supply a film-forming gas for forming an organic film on the substrate placed on the stage; and a heating part configured to heat the substrate placed on the stage in a non-contact manner so as to remove a surface portion of the organic film.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 17, 2020
    Inventors: Syuji NOZAWA, Tatsuya YAMAGUCHI
  • Publication number: 20200294844
    Abstract: A method of manufacturing a semiconductor device, the method including: a first film deposition process of stacking a polymer film on a substrate on which a recess is formed, wherein the polymer film is a film of a polymer having a urea bond and is formed by polymerizing a plurality of kinds of monomers; a second film deposition process of stacking a sealing film on the substrate in a state in which at least a bottom and a sidewall of the recess are covered with the polymer film; and a desorbing process of desorbing and diffusing the polymer film under the sealing film through the sealing film by depolymerizing the polymer film by heating the substrate to a first temperature.
    Type: Application
    Filed: March 3, 2020
    Publication date: September 17, 2020
    Inventors: Syuji NOZAWA, Tatsuya YAMAGUCHI, Sunghil LEE
  • Patent number: 10755971
    Abstract: A method of manufacturing a semiconductor device by performing a process on a substrate includes: forming a protective layer made of a polymer having a urea bond by supplying a raw material for polymerization to a surface of a substrate on which a protected film to be protected is formed; forming a sealing film at a first temperature lower than a second temperature at which the polymer is depolymerized so cover a portion where the protective layer is exposed; subsequently, subjecting the substrate to a treatment at a third temperature equal to or higher than the second temperature at which the polymer as the protective layer is depolymerized; subsequently, performing a treatment which causes damage to the protected film when the protective layer is not present; and after the performing a treatment which causes damage to the protected film, depolymerizing the polymer by heating the substrate.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: August 25, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Tatsuya Yamaguchi, Reiji Niino, Hiroyuki Hashimoto, Syuji Nozawa, Makoto Fujikawa
  • Publication number: 20200152656
    Abstract: A method of manufacturing a semiconductor memory includes: forming a first lamination on a substrate; forming a first hole through the first lamination; embedding a first sacrificial material including a thermally decomposable organic material in the first hole; forming a recess at an upper portion of the first hole; forming an oxide film in the recess; removing the first sacrificial material under the oxide film; embedding a second sacrificial material on the oxide film in the recess; forming a second lamination on the first lamination and the second sacrificial material; forming a second hole through the second lamination at a position corresponding to the first hole by etching the second lamination in an extension direction of the first hole; and removing the oxide film and the second sacrificial material.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 14, 2020
    Inventors: Sunghil LEE, Tatsuya YAMAGUCHI, Syuji NOZAWA, Nagisa SATO
  • Publication number: 20200152478
    Abstract: There is provided a method of manufacturing a device, which comprises: a preparation step of preparing a workpiece having a recess formed therein; a burying step of burying a sacrificial material composed of a thermally decomposable organic material in the recess; a lamination step of laminating a preliminary sealing film on the sacrificial material buried in the recess; a first removal step of removing the sacrificial material in the recess through the preliminary sealing film, by annealing the workpiece at a first temperature and thermally decomposing the sacrificial material; a processing step of performing a predetermined process on a portion other than the recess in the workpiece, in a state in which the recess is covered with the preliminary sealing film; and a second removal step of removing the preliminary sealing film.
    Type: Application
    Filed: November 11, 2019
    Publication date: May 14, 2020
    Inventors: Sunghil LEE, Tatsuya YAMAGUCHI, Nagisa SATO, Syuji NOZAWA
  • Patent number: 10629448
    Abstract: A method for manufacturing a semiconductor device by processing a substrate, the method includes forming a first film of a polymer having urea bonds by supplying a polymerization raw material to a surface of the substrate, subsequently, forming a pattern by etching the first film, and subsequently, forming a second film of a material different from the polymer of the first film by performing a substitution processing to the first film by supplying a reaction gas, which reacts with the polymerization raw material to generate a product, to the substrate while heating the substrate to depolymerize the polymer.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: April 21, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Tatsuya Yamaguchi, Reiji Niino, Hiroyuki Hashimoto, Syuji Nozawa, Makoto Fujikawa
  • Publication number: 20200101490
    Abstract: There is provided a film forming apparatus for forming a polymer film on a target substrate by a deposition polymerization, including: a stage provided inside a processing container in which the target substrate is accommodated, the target substrate being placed on the stage; a stage heater provided inside the stage and configured to heat the target substrate placed on the stage; a ceiling plate heater provided in a ceiling plate of the processing container to face the stage; and a controller configured to control a temperature of the target substrate in a first temperature unit by controlling a temperature of the stage heater on the first temperature unit, and to control the temperature of the target substrate on a temperature unit finer than the first temperature unit by a radiant heat radiated through the ceiling plate by controlling a temperature of the ceiling plate heater on a second temperature unit.
    Type: Application
    Filed: September 25, 2019
    Publication date: April 2, 2020
    Inventors: Syuji NOZAWA, Tatsuya YAMAGUCHI
  • Publication number: 20200098561
    Abstract: There is provided a method of manufacturing a semiconductor device, including: forming a polymer film, which is a film of a polymer having a urea bond generated by polymerization of plural types of monomers, around a plurality of structures provided on a substrate and including a first material; adjusting a shape of the polymer film; forming a temporary sealing film on the polymer film to cover the polymer film; and heating the polymer film to depolymerize the polymer into the plural types of monomers and desorb the plural types of depolymerized monomers through the temporary sealing film.
    Type: Application
    Filed: September 20, 2019
    Publication date: March 26, 2020
    Inventors: Syuji NOZAWA, Tatsuya YAMAGUCHI, Nagisa SATO
  • Publication number: 20200083029
    Abstract: There is provided a substrate processing apparatus including: a chamber in which a target substrate is accommodated; a first gas supply part configured to supply a gas containing a first monomer, and a gas containing a second monomer, which forms a polymer through a polymerization reaction with the first monomer, into the chamber so as to form a film of the polymer on the target substrate; an exhaust device configured to exhaust a gas inside the chamber; a first exhaust pipe configured to connect the chamber and the exhaust device; and an energy supply device configured to supply an energy with respect to a gas flowing through the first exhaust pipe so as to cause an unreacted component of at least one of the first monomer and the second monomer contained in the gas exhausted from the chamber to be reduced in a molecular weight.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 12, 2020
    Inventors: Syuji NOZAWA, Yoji IIZUKA, Tatsuya YAMAGUCHI
  • Publication number: 20190390347
    Abstract: There is provided a control device, comprising: an acquisition part configured to acquire data of saturation vapor pressure curves for plural types of raw materials used to form a film on a workpiece, and a predetermined saturation vapor pressure value set for the workpiece; a selection part configured to select a raw material having a lowest saturation vapor pressure at a certain temperature, among the plural types of raw materials, based on the data of the saturation vapor pressure curves; a calculation part configured to calculate a temperature corresponding to the predetermined saturation vapor pressure value for the selected raw material based on the data of the saturation vapor pressure curve for the selected raw material; and a controller configured to control a temperature of the workpiece to the calculated temperature.
    Type: Application
    Filed: June 19, 2019
    Publication date: December 26, 2019
    Inventors: Tatsuya YAMAGUCHI, Syuji NOZAWA, Makoto FUJIKAWA
  • Publication number: 20190393083
    Abstract: A method of manufacturing a semiconductor device by performing a process on a substrate includes: forming a protective layer made of a polymer having a urea bond by supplying a raw material for polymerization to a surface of a substrate on which a protected film to be protected is formed; forming a sealing film at a first temperature lower than a second temperature at which the polymer is depolymerized so cover a portion where the protective layer is exposed; subsequently, subjecting the substrate to a treatment at a third temperature equal to or higher than the second temperature at which the polymer as the protective layer is depolymerized; subsequently, performing a treatment which causes damage to the protected film when the protective layer is not present; and after the performing a treatment which causes damage to the protected film, depolymerizing the polymer by heating the substrate.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Inventors: Tatsuya YAMAGUCHI, Reiji NIINO, Hiroyuki HASHIMOTO, Syuji NOZAWA, Makoto FUJIKAWA
  • Publication number: 20190363011
    Abstract: A semiconductor device manufacturing method includes burying a void formed in a substrate with a polymer having a urea bond; forming an oxide film on the substrate; and desorbing a depolymerized polymer obtained by depolymerizing the polymer from the void through the oxide film.
    Type: Application
    Filed: May 22, 2019
    Publication date: November 28, 2019
    Inventors: Tatsuya YAMAGUCHI, Syuji NOZAWA, Nagisa SATO
  • Patent number: 10490405
    Abstract: There is provided a semiconductor device manufacturing method including: forming a first mask film composed of a polymer having a urea bond by supplying a raw material to a surface of the substrate for polymerization; forming a second mask inorganic film to be laminated on the first mask film; forming a pattern on the first mask film and the second mask inorganic film and performing an ion implantation on the surface of the substrate; removing the second mask inorganic film after the ion implantation; and removing the first mask film by heating the substrate after the ion implantation and depolymerizing the polymer.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: November 26, 2019
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Tatsuya Yamaguchi, Reiji Niino, Hiroyuki Hashimoto, Syuji Nozawa, Makoto Fujikawa
  • Patent number: 10446438
    Abstract: A method of manufacturing a semiconductor device by performing a process on a substrate includes: forming a protective layer made of a polymer having a urea bond by supplying a raw material for polymerization to a surface of a substrate on which a protected film to be protected is formed; forming a sealing film at a first temperature lower than a second temperature at which the polymer is depolymerized so cover a portion where the protective layer is exposed; subsequently, subjecting the substrate to a treatment at a third temperature equal to or higher than the second temperature at which the polymer as the protective layer is depolymerized; subsequently, performing a treatment which causes damage to the protected film when the protective layer is not present; and after the performing a treatment which causes damage to the protected film, depolymerizing the polymer by heating the substrate.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: October 15, 2019
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Tatsuya Yamaguchi, Reiji Niino, Hiroyuki Hashimoto, Syuji Nozawa, Makoto Fujikawa