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).

  • 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
  • Patent number: 9691606
    Abstract: There is provided a method of manufacturing a semiconductor device, including pre-treating a surface of an insulating film formed on a substrate by supplying a precursor containing a first element and a halogen element to the substrate; and forming a film containing the first element and a second element on the pre-treated surface of the insulating film by performing a cycle a predetermined number of times, the cycle including supplying the precursor to the substrate; and supplying a reactant containing the second element to the substrate, wherein the act of supplying the precursor and the act of supplying the reactant are performed non-simultaneously.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: June 27, 2017
    Assignee: Hitachi Kokusai Electric, Inc.
    Inventors: Yoshitomo Hashimoto, Yoshiro Hirose, Katsuyoshi Harada, Yoshinobu Nakamura, Ryota Sasajima
  • Publication number: 20170178902
    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: Application
    Filed: March 8, 2017
    Publication date: June 22, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE, Shingo NOHARA, Ryota SASAJIMA, Katsuyoshi HARADA, Yuji URANO
  • Publication number: 20170162386
    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: Application
    Filed: February 17, 2017
    Publication date: June 8, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE
  • Publication number: 20170103885
    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: December 21, 2016
    Publication date: April 13, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshinobu NAKAMURA, Kiyohiko MAEDA, Yoshiro HIROSE, Ryota HORIIKE, Yoshitomo HASHIMOTO
  • Patent number: 9620357
    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: July 22, 2016
    Date of Patent: April 11, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo Hashimoto, Yoshiro Hirose, Shingo Nohara, Ryota Sasajima, Katsuyoshi Harada, Yuji Urano
  • Patent number: 9583338
    Abstract: According to the present disclosure, a film containing a predetermined element, carbon and nitrogen is formed with high controllability of a composition thereof. A method of manufacturing a semiconductor device includes forming a film containing a predetermined element, carbon and nitrogen on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a first processing gas containing the predetermined element and a halogen element to the substrate, supplying a second processing gas composed of three elements of carbon, nitrogen and hydrogen to the substrate, and supplying a third processing gas containing carbon to the substrate.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: February 28, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo Hashimoto, Yoshiro Hirose, Tatsuru Matsuoka
  • Publication number: 20170040157
    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: Application
    Filed: July 29, 2016
    Publication date: February 9, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE, Tatsuru MATSUOKA
  • Publication number: 20170025271
    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: Application
    Filed: July 22, 2016
    Publication date: January 26, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE, Shingo NOHARA, Ryota SASAJIMA, Katsuyoshi HARADA, Yuji URANO
  • Publication number: 20170011908
    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: Application
    Filed: July 7, 2016
    Publication date: January 12, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tatsuru MATSUOKA, Yoshiro HIROSE, Yoshitomo HASHIMOTO
  • Publication number: 20160365243
    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: Application
    Filed: August 26, 2016
    Publication date: December 15, 2016
    Inventors: Yoshiro HIROSE, Atsushi SANO, Yugo Orihashi, Yoshitomo HASHIMOTO, Satoshi SHIMAMOTO
  • Patent number: 9460916
    Abstract: An object of the present invention is to form a good thin film while suppressing generation of foreign substances in a low temperature region. Provided is a method of manufacturing a semiconductor device, including: (a) forming a thin film containing at least a predetermined element and carbon on a substrate by performing a cycle a predetermined number of times, the cycle including: (a-1) supplying a source gas containing the predetermined element and a halogen element to the substrate in a process container; and (a-2) supplying a reaction gas composed of carbon, nitrogen, and hydrogen to the substrate in the process container; and (b) modifying byproduct adhered to an inside of the process container by supplying a nitriding gas into the process container after (a).
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: October 4, 2016
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Satoshi Shimamoto, Yugo Orihashi, Yoshitomo Hashimoto, Yoshiro Hirose
  • Patent number: 9460911
    Abstract: A method of manufacturing a semiconductor device for forming a thin film having characteristics of 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 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: May 7, 2015
    Date of Patent: October 4, 2016
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yoshiro Hirose, Atsushi Sano, Yugo Orihashi, Yoshitomo Hashimoto, Satoshi Shimamoto
  • Publication number: 20160203978
    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: Application
    Filed: January 13, 2016
    Publication date: July 14, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE, Tatsuru MATSUOKA, Katsuyoshi HARADA
  • Publication number: 20160071721
    Abstract: An object of the present invention is to form a good thin film while suppressing generation of foreign substances in a low temperature region. Provided is a method of manufacturing a semiconductor device, including: (a) forming a thin film containing at least a predetermined element and carbon on a substrate by performing a cycle a predetermined number of times, the cycle including: (a-1) supplying a source gas containing the predetermined element and a halogen element to the substrate in a process container; and (a-2) supplying a reaction gas composed of carbon, nitrogen, and hydrogen to the substrate in the process container; and (b) modifying byproduct adhered to an inside of the process container by supplying a nitriding gas into the process container after (a).
    Type: Application
    Filed: November 12, 2015
    Publication date: March 10, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Satoshi SHIMAMOTO, Yugo ORIHASHI, Yoshitomo HASHIMOTO, Yoshiro HIROSE
  • Publication number: 20160013042
    Abstract: There is provided a method of manufacturing a semiconductor device, including pre-treating a surface of an insulating film formed on a substrate by supplying a precursor containing a first element and a halogen element to the substrate; and forming a film containing the first element and a second element on the pre-treated surface of the insulating film by performing a cycle a predetermined number of times, the cycle including supplying the precursor to the substrate; and supplying a reactant containing the second element to the substrate, wherein the act of supplying the precursor and the act of supplying the reactant are performed non-simultaneously.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 14, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshitomo HASHIMOTO, Yoshiro HIROSE, Katsuyoshi HARADA, Yoshinobu NAKAMURA, Ryota SASAJIMA
  • Patent number: 9218959
    Abstract: An object of the present invention is to form a good thin film while suppressing generation of foreign substances in a low temperature region. Provided is a method of manufacturing a semiconductor device, including: (a) forming a thin film containing at least a predetermined element and carbon on a substrate by performing a cycle a predetermined number of times, the cycle including: supplying a source gas containing the predetermined element and a halogen element to the substrate in a process container; and supplying an amine-based gas to the substrate in the process container; and (b) modifying byproducts adhered to an inside of the process container by supplying a nitriding gas into the process container after forming the thin film.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: December 22, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Satoshi Shimamoto, Yugo Orihashi, Yoshitomo Hashimoto, Yoshiro Hirose
  • Publication number: 20150243498
    Abstract: A method of manufacturing a semiconductor device for forming a thin film having characteristics of 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 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: Application
    Filed: May 7, 2015
    Publication date: August 27, 2015
    Inventors: Yoshiro HIROSE, Atsushi SANO, Yugo Orihashi, Yoshitomo HASHIMOTO, Satoshi SHIMAMOTO