Patents by Inventor Yoshitomo HASHIMOTO

Yoshitomo HASHIMOTO 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: 20180347047
    Abstract: There is provided a technique that includes arranging a plurality of substrates inside a process container in a vertical direction; and forming a film on each of the plurality of substrates by supplying a process gas into the process container. The act of forming the film includes: supplying the process gas into the process container; and performing pressure control such that a pressure inside the process container becomes a process pressure. A start timing of the act of supplying the process gas is adjusted with respect to a start timing of the act of performing the pressure control to adjust a thickness of a film formed on a substrate arranged on an upper portion of the plurality of substrates.
    Type: Application
    Filed: May 25, 2018
    Publication date: December 6, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Tatsuru MATSUOKA
  • Publication number: 20180337031
    Abstract: A method of manufacturing a semiconductor device includes: providing a substrate that includes a surface exposing a first film containing silicon, oxygen, carbon and nitrogen and having an oxygen atom concentration higher than a silicon atom concentration, which is higher than a carbon atom concentration, which is equal to or higher than a nitrogen atom concentration; and changing a composition of a surface of the first film so that the nitrogen atom concentration becomes higher than the carbon atom concentration on the surface of the first film, by supplying a plasma-excited nitrogen-containing gas to the surface of the first film.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 22, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Masanori NAKAYAMA, Masaya NAGATO, Tatsuru MATSUOKA, Hiroki YAMASHITA, Takafumi NITTA, Satoshi SHIMAMOTO
  • Patent number: 10121654
    Abstract: There is provided a method for manufacturing a semiconductor device, including: providing a substrate with an oxide film formed on a surface thereof; pre-processing a surface of the oxide film; and forming a nitride film containing carbon on the surface of the oxide film which has been pre-processed, by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: supplying a precursor gas to the substrate; supplying a carbon-containing gas to the substrate; and supplying a nitrogen-containing gas to the substrate, or by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: supplying a precursor gas to the substrate; and supplying a gas containing carbon and nitrogen to the substrate, or by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: supplying a precursor gas containing carbon to the substrate; and supplying a nitrogen-containing gas to the substrate.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 6, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshinobu Nakamura, Kiyohiko Maeda, Yoshiro Hirose, Ryota Horiike, Yoshitomo Hashimoto
  • Patent number: 10096463
    Abstract: A method of manufacturing a semiconductor device includes: forming a film on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing: supplying a precursor from a first nozzle to a substrate and exhausting the precursor from an exhaust port; supplying a first reactant from a second nozzle to the substrate and exhausting the first reactant from the exhaust port; and supplying a second reactant from a third nozzle to the substrate and exhausting the second reactant from the exhaust port. A substrate in-plane film thickness distribution of the film formed on the substrate is controlled by controlling a balance between a flow rate of an inert gas supplied from the second nozzle, a flow rate of an inert gas supplied from the third nozzle, and a flow rate of an inert gas supplied from the first nozzle in supplying the precursor.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: October 9, 2018
    Assignee: Hitachi Kokusai Electric, Inc.
    Inventors: Yoshitomo Hashimoto, Tatsuru Matsuoka, Masaya Nagato, Ryota Horiike, Shintaro Kogura
  • Patent number: 10090149
    Abstract: A method of manufacturing a semiconductor device includes: forming a base film containing a first element and carbon on a substrate by supplying a film forming gas to the substrate; and oxidizing the base film by supplying an oxidizing gas to the substrate to modify the base film into a C-free oxide film containing the first element.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: October 2, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo Hashimoto, Yoshiro Hirose
  • Publication number: 20180269055
    Abstract: There is provided a technique that includes: forming a film containing a main element, carbon and nitrogen on a pattern formed on a surface of a substrate by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: (a) forming a first layer containing the main element by supplying a precursor, which contains the main element constituting the film to be formed, to the substrate having the pattern; and (b) forming a second layer containing the main element, carbon and nitrogen by supplying a first reactant, which contains carbon and nitrogen, to the substrate so that a substance obtained by decomposing a portion of the first reactant is adsorbed on the first layer.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Masaya NAGATO
  • Patent number: 10074535
    Abstract: A method of manufacturing a semiconductor device includes forming a film on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing: supplying a precursor containing a predetermined element to the substrate in a process chamber, removing the precursor from the process chamber, supplying a first reactant containing nitrogen, carbon and hydrogen to the substrate, removing the first reactant from the process chamber, supplying a second reactant containing oxygen to the substrate, and removing the second reactant from the process chamber. A time period of the act of removing the precursor is set to be longer than a time period of the act of removing the first reactant, or a time period of the act of removing the second reactant is set to be longer than the time period of the act of removing the first reactant.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: September 11, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tatsuru Matsuoka, Yoshiro Hirose, Yoshitomo Hashimoto
  • Publication number: 20180233351
    Abstract: There is provided a method for manufacturing a semiconductor device, including: providing a substrate with an oxide film formed on a surface thereof; pre-processing a surface of the oxide film; and forming a nitride film containing carbon on the surface of the oxide film which has been pre-processed, by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: supplying a precursor gas to the substrate; supplying a carbon-containing gas to the substrate; and supplying a nitrogen-containing gas to the substrate, or by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: supplying a precursor gas to the substrate; and supplying a gas containing carbon and nitrogen to the substrate, or by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: supplying a precursor gas containing carbon to the substrate; and supplying a nitrogen-containing gas to the substrate.
    Type: Application
    Filed: April 11, 2018
    Publication date: August 16, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshinobu NAKAMURA, Kiyohiko MAEDA, Yoshiro HIROSE, Ryota HORIIKE, Yoshitomo HASHIMOTO
  • Publication number: 20180218898
    Abstract: There is provided a technique which includes: forming a film containing at least Si, O and N on a substrate in a process chamber by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: forming a first layer by supplying a precursor gas containing at least a Si—N bond and a Si—Cl bond and a first catalyst gas to the substrate; exhausting the precursor gas and the first catalyst gas in the process chamber through an exhaust system; forming a second layer by supplying an oxidizing gas and a second catalyst gas to the substrate to modify the first layer; and exhausting the oxidizing gas and the second catalyst gas in the process chamber through the exhaust system.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 2, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshiro HIROSE, Yoshitomo HASHIMOTO
  • Publication number: 20180179628
    Abstract: A method of manufacturing a semiconductor device includes: (a) processing a substrate accommodated in a process chamber by supplying an inert gas into a tank storing a precursor via a first supply pipe, supplying the precursor from an interior of the tank into the process chamber via a second supply pipe connected to the first supply pipe by a connection pipe, and exhausting the precursor from the interior of the process chamber; and (b) purging an interior of the first supply pipe, an interior of the connection pipe and an interior of the second supply pipe by alternately repeating: supplying a heated inert gas into the first supply pipe, the connection pipe and the second supply pipe, and exhausting the heated inert gas; and vacuumizing the interior of the first supply pipe, the interior of the connection pipe, and the interior of the second supply pipe.
    Type: Application
    Filed: February 22, 2018
    Publication date: June 28, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE
  • Patent number: 9934962
    Abstract: A method of manufacturing a semiconductor device includes a process of forming a film on a substrate by performing a cycle a predetermined number of times. The cycle includes: supplying a precursor containing a predetermined element to the substrate; supplying a first reactant containing nitrogen and carbon to the substrate; supplying a second reactant containing nitrogen to the substrate; and supplying a third reactant containing oxygen to the substrate, wherein in the cycle, a supply amount of the second reactant is set to be smaller than a supply amount of the first reactant.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: April 3, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo Hashimoto, Yoshiro Hirose, Tatsuru Matsuoka
  • Publication number: 20180076017
    Abstract: A method of manufacturing a semiconductor device includes: forming a film on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing: supplying a precursor from a first nozzle to a substrate and exhausting the precursor from an exhaust port; supplying a first reactant from a second nozzle to the substrate and exhausting the first reactant from the exhaust port; and supplying a second reactant from a third nozzle to the substrate and exhausting the second reactant from the exhaust port. A substrate in-plane film thickness distribution of the film formed on the substrate is controlled by controlling a balance between a flow rate of an inert gas supplied from the second nozzle, a flow rate of an inert gas supplied from the third nozzle, and a flow rate of an inert gas supplied from the first nozzle in supplying the precursor.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 15, 2018
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Tatsuru MATSUOKA, Masaya NAGATO, Ryota HORIIKE, Shintaro KOGURA
  • Patent number: 9881789
    Abstract: A method of manufacturing a semiconductor device includes: providing a substrate having an oxide film; performing, a predetermined number of times, a cycle of non-simultaneously performing supplying a precursor gas to the substrate, supplying a carbon-containing gas to the substrate, and supplying a nitrogen-containing gas to the substrate, or performing, a predetermined number of times, a cycle of non-simultaneously performing supplying a precursor gas to the substrate and supplying a gas containing carbon and nitrogen to the substrate, or performing, a predetermined number of times, a cycle of non-simultaneously performing supplying a precursor gas containing carbon to the substrate and supplying a nitrogen-containing gas to the substrate, the oxide film being used as an oxygen source to form a nitride layer containing oxygen and carbon as a seed layer; and forming a nitride film containing no oxygen and carbon as a first film on the seed layer.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 30, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC, INC.
    Inventors: Yoshitomo Hashimoto, Yoshiro Hirose, Shingo Nohara, Ryota Sasajima, Katsuyoshi Harada, Yuji Urano
  • Publication number: 20170365467
    Abstract: There is provided a method of manufacturing a semiconductor device, which includes: forming a first seed layer containing silicon and germanium on a substrate by performing, a predetermined number of times, a cycle which includes supplying a first process gas containing silicon or germanium and containing a halogen element to the substrate, supplying a second process gas containing silicon and not containing a halogen element to the substrate, and supplying a third process gas containing germanium and not containing a halogen element to the substrate; and forming a germanium-containing film on the first seed layer by supplying a fourth process gas containing germanium and not containing a halogen element to the substrate.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 21, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Satoshi SHIMAMOTO, Yoshiro HIROSE, Hajime KARASAWA, Ryota HORIIKE, Naoharu NAKAISO, Yoshitomo HASHIMOTO
  • Patent number: 9837261
    Abstract: A method of manufacturing a semiconductor device for forming a thin film having low permittivity, high etching resistance and high leak resistance is provided. The method includes: forming a film containing a predetermined element, oxygen, carbon and nitrogen on a substrate by performing a cycle a predetermined number of times. The cycle includes: (a) supplying a source gas containing the predetermined element and a halogen element to the substrate; (b) supplying a first reactive gas containing the three elements including carbon, nitrogen and hydrogen wherein a number of carbon atoms in each molecule of the first reactive gas is greater than that of nitrogen atoms in each molecule of the first reactive gas to the substrate; (c) supplying a nitriding gas as a second reactive gas to the substrate; and (d) supplying an oxidizing gas as a third reactive gas to the substrate, wherein (a) through (d) are non-simultaneously performed.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: December 5, 2017
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yoshiro Hirose, Atsushi Sano, Yugo Orihashi, Yoshitomo Hashimoto, Satoshi Shimamoto
  • Publication number: 20170271144
    Abstract: A method of manufacturing a semiconductor device, includes forming a film on a substrate by performing a cycle a predetermined number of times. The cycle includes non-simultaneously performing (a) supplying a precursor containing a first element to the substrate, (b) supplying a plasma-excited nitrogen gas to the substrate after the act (a), (c) supplying a reactant containing a second element to the substrate after the act (b), and (d) supplying a plasma-excited nitrogen gas to the substrate after the act (c). A gas purge of a space where the substrate is located and vacuumization of the space without gas supply are not performed between the act (a) and the act (b) and between the act (c) and the act (d).
    Type: Application
    Filed: March 13, 2017
    Publication date: September 21, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE, Tatsuru MATSUOKA
  • Publication number: 20170263439
    Abstract: The present disclosure provides a technique including a method of manufacturing a semiconductor device, which is capable of improving the characteristics of a film formed on a substrate. The method of manufacturing a semiconductor device may include: (a) forming a first film containing a predetermined element, oxygen, carbon and nitrogen on a substrate; and (b) forming a second film thinner than the first film on a top surface of the first film, the second film having an oxygen concentration lower than an oxygen concentration of the first film or having oxygen and carbon concentrations lower than oxygen and carbon concentrations of the first film.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 14, 2017
    Inventors: Yoshitomo HASHIMOTO, Yushin TAKASAWA, Masaya NAGATO
  • Patent number: 9741555
    Abstract: A method of manufacturing a semiconductor device, includes: supplying a first precursor and a first nitriding agent onto a substrate having a surface formed thereon with an oxygen-containing film in order to form an initial film on the oxygen-containing film; modifying the initial film into a first nitride film by nitriding the initial film with plasma; and supplying a second precursor and a second nitriding agent onto the substrate in order to form a second nitride film on the first nitride film.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 22, 2017
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yoshitomo Hashimoto, Yoshiro Hirose, Tatsuru Matsuoka, Katsuyoshi Harada
  • Publication number: 20170221698
    Abstract: A semiconductor device manufacturing method includes forming a film having a desired composition on a substrate by selectively performing at least one of: performing, n1 times, a cycle including processes of sequentially supplying a first precursor gas, a nitriding gas and an oxidizing gas to the substrate; performing, n2 times, a cycle including processes of sequentially supplying the first precursor gas, the oxidizing gas and the nitriding gas to the substrate; performing, n3 times, a cycle including processes of sequentially supplying a second precursor gas containing a chemical bond of a predetermined element and carbon, which is more than that contained in the first precursor gas, the nitriding gas and the oxidizing gas to the substrate; and performing, n4 times, a cycle including processes of sequentially supplying the second precursor gas, the oxidizing gas and the nitriding gas to the substrate.
    Type: Application
    Filed: January 31, 2017
    Publication date: August 3, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE
  • Patent number: 9704703
    Abstract: A method of manufacturing a semiconductor device is disclosed. The method includes forming a film containing a predetermined element and carbon on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a first process gas containing the predetermined element and a halogen element to the substrate; supplying a second process gas containing carbon and nitrogen to the substrate; supplying a third process gas containing carbon to the substrate; and supplying a fourth process gas to the substrate, the fourth process gas being different from each of the first to the third process gases.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: July 11, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo Hashimoto, Yoshiro Hirose, Atsushi Sano