Patents by Inventor Kiyohiko Maeda

Kiyohiko Maeda 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: 10840094
    Abstract: There is provided a technique that includes: (a) forming a silicon germanium film in an amorphous state so as to embed an inside of a recess formed on a surface of a substrate, by supplying a first silicon-containing gas and a germanium-containing gas to the substrate at a first temperature; (b) raising a temperature of the substrate from the first temperature to a second temperature, which is higher than the first temperature; and (c) forming a silicon film on the silicon germanium film by supplying a second silicon-containing gas to the substrate at the second temperature, wherein in (c), the silicon germanium film as a base of the silicon film is crystallized while the silicon film is formed.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: November 17, 2020
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Kiyohiko Maeda, Masato Terasaki, Yasuhiro Megawa, Takahiro Miyakura, Akito Hirano, Takashi Nakagawa
  • Publication number: 20200333766
    Abstract: The present disclosure provides a substrate processing apparatus, a substrate processing method, a semiconductor device manufacturing method, and a control program capable of controlling thickness uniformity of a film formed on a substrate. The substrate processing apparatus includes a process chamber into which a substrate is transferred; a heating device heating the substrate, transferred into the process chamber, from its periphery side; a cooling device cooling the substrate, transferred into the process chamber, from its periphery side; a process gas supply unit supplying a process gas into the process chamber; and a control unit controlling the heating device and the cooling device to generate temperature difference between a center and the periphery sides of the substrate and controls the process gas supply unit. The control unit operates the process gas supply unit to stop operation of the cooling device during supply of the process gas into the process chamber.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Masashi SUGISHITA, Yuuji URANO, Kiyohiko MAEDA, Masaaki UENO, Tetsuya KOSUGI, Masaya NISHIDA
  • Patent number: 10497561
    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: February 7, 2019
    Date of Patent: December 3, 2019
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Yoshinobu Nakamura, Kiyohiko Maeda, Yoshiro Hirose, Ryota Horiike, Yoshitomo Hashimoto
  • Publication number: 20190206679
    Abstract: There is provided a technique that includes: (a) forming a silicon germanium film in an amorphous state so as to embed an inside of a recess formed on a surface of a substrate, by supplying a first silicon-containing gas and a germanium-containing gas to the substrate at a first temperature; (b) raising a temperature of the substrate from the first temperature to a second temperature, which is higher than the first temperature; and (c) forming a silicon film on the silicon germanium film by supplying a second silicon-containing gas to the substrate at the second temperature, wherein in (c), the silicon germanium film as a base of the silicon film is crystallized while the silicon film is formed.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Kiyohiko MAEDA, Masato TERASAKI, Yasuhiro MEGAWA, Takahiro MIYAKURA, Akito HIRANO, Takashi NAKAGAWA
  • Publication number: 20190189422
    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: February 7, 2019
    Publication date: June 20, 2019
    Applicant: KOKUSAI ELECTRIC CORPORATION
    Inventors: Yoshinobu NAKAMURA, Kiyohiko MAEDA, Yoshiro HIROSE, Ryota HORIIKE, Yoshitomo HASHIMOTO
  • Patent number: 10229829
    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: April 11, 2018
    Date of Patent: March 12, 2019
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Yoshinobu Nakamura, Kiyohiko Maeda, Yoshiro Hirose, Ryota Horiike, Yoshitomo Hashimoto
  • Patent number: 10163625
    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: December 25, 2018
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yoshinobu Nakamura, Kiyohiko Maeda, Yoshiro Hirose, Ryota Horiike, Yoshitomo Hashimoto
  • 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
  • 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
  • Patent number: 9793107
    Abstract: A method of manufacturing a semiconductor device, includes: forming a thin film containing silicon, oxygen and carbon or a thin film containing silicon, oxygen, carbon and nitrogen on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a precursor gas serving as a silicon source and a carbon source or a precursor gas serving as a silicon source but no carbon source, and a first catalyst gas to the substrate; supplying an oxidizing gas and a second catalyst gas to the substrate; and supplying a modifying gas containing at least one selected from the group consisting of carbon and nitrogen to the substrate.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 17, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Takaaki Noda, Satoshi Shimamoto, Shingo Nohara, Yoshiro Hirose, Kiyohiko Maeda
  • Patent number: 9698007
    Abstract: A method of manufacturing a semiconductor device, includes forming a thin film containing silicon, oxygen and carbon or a thin film containing silicon, oxygen, carbon and nitrogen on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a precursor gas serving as a silicon source and a carbon source or a precursor gas serving as a silicon source but no carbon source, and a first catalyst gas to the substrate; supplying an oxidizing gas and a second catalyst gas to the substrate; and supplying a modifying gas containing at least one selected from the group consisting of carbon and nitrogen to the substrate.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 4, 2017
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Takaaki Noda, Satoshi Shimamoto, Shingo Nohara, Yoshiro Hirose, Kiyohiko Maeda
  • Patent number: 9666430
    Abstract: A film is formed on a substrate by performing a cycle at least twice, the cycle including a nucleus formation process for forming nuclei on the substrate and a nucleus growth suppression process for suppressing growth of the nuclei. A time required for the nucleus growth suppression process is less than or equal to a time required for the nucleus formation process. Alternatively, the nucleus formation process is further performed after the cycle is repeatedly performed a plurality of times.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: May 30, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yasunobu Koshi, Keigo Nishida, Kiyohiko Maeda
  • 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: 9349587
    Abstract: In a low-temperature, a silicon nitride film having a low in-film chlorine (Cl) content and a high resistance to hydrogen fluoride (HF) is formed. The formation of the silicon nitride film includes (a) supplying a monochlorosilane (SiH3Cl or MCS) gas to a substrate disposed in a processing chamber, (b) supplying a plasma-excited hydrogen-containing gas to the substrate disposed in the processing chamber, (c) supplying a plasma-excited or heat-excited nitrogen-containing gas to the substrate disposed in the processing chamber, (d) supplying at least one of a plasma-excited nitrogen gas and a plasma-excited rare gas to the substrate disposed in the processing chamber, and (e) performing a cycle including the steps (a) through (d) a predetermined number of times to form a silicon nitride film on the substrate.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: May 24, 2016
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yoshiro Hirose, Atsushi Sano, Kazuyuki Okuda, Kiyohiko Maeda
  • Publication number: 20150370245
    Abstract: The present disclosure provides a substrate processing apparatus, a substrate processing method, a semiconductor device manufacturing method, and a control program capable of controlling thickness uniformity of a film formed on a substrate. The substrate processing apparatus includes a process chamber into which a substrate is transferred; a heating device heating the substrate, transferred into the process chamber, from its periphery side; a cooling device cooling the substrate, transferred into the process chamber, from its periphery side; a process gas supply unit supplying a process gas into the process chamber; and a control unit controlling the heating device and the cooling device to generate temperature difference between a center and the periphery sides of the substrate and controls the process gas supply unit. The control unit operates the process gas supply unit to stop operation of the cooling device during supply of the process gas into the process chamber.
    Type: Application
    Filed: December 4, 2013
    Publication date: December 24, 2015
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masashi SUGISHITA, Yuuji URANO, Kiyohiko MAEDA, Masaaki UENO, Tetsuya KOSUGI, Masaya NISHIDA
  • Publication number: 20150332916
    Abstract: A method of manufacturing a semiconductor device, includes forming a thin film containing silicon, oxygen and carbon or a thin film containing silicon, oxygen, carbon and nitrogen on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a precursor gas serving as a silicon source and a carbon source or a precursor gas serving as a silicon source but no carbon source, and a first catalyst gas to the substrate; supplying an oxidizing gas and a second catalyst gas to the substrate; and supplying a modifying gas containing at least one selected from the group consisting of carbon and nitrogen to the substrate.
    Type: Application
    Filed: July 23, 2015
    Publication date: November 19, 2015
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Takaaki NODA, Satoshi SHIMAMOTO, Shingo NOHARA, Yoshiro HIROSE, Kiyohiko MAEDA
  • Patent number: 9177786
    Abstract: A method of manufacturing a semiconductor device includes forming a thin film on a substrate by performing a cycle a predetermined number of times. The cycle includes supplying a source gas to the substrate, and supplying excited species from each of a plurality of excitation units provided at a side of the substrate to the substrate. Each of the plurality of excitation units generates the excited species by plasma-exciting a reaction gas. In supplying the excited species from each of the plurality of excitation units, an in-plane distribution of the excited species supplied from at least one of the plurality of excitation units in the substrate differs from an in-plane distribution of the excited species supplied from another excitation unit, other than the at least one excitation unit, among the plurality of excitation units, in the substrate.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 3, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Atsushi Sano, Yoshiro Hirose, Kiyohiko Maeda, Kazuyuki Okuda, Ryuji Yamamoto
  • Publication number: 20150126021
    Abstract: A film is formed on a substrate by performing a cycle at least twice, the cycle including a nucleus formation process for forming nuclei on the substrate and a nucleus growth suppression process for suppressing growth of the nuclei. A time required for the nucleus growth suppression process is less than or equal to a time required for the nucleus formation process. Alternatively, the nucleus formation process is further performed after the cycle is repeatedly performed a plurality of times.
    Type: Application
    Filed: January 15, 2015
    Publication date: May 7, 2015
    Inventors: Yasunobu KOSHI, Keigo NISHIDA, Kiyohiko MAEDA
  • Patent number: D739831
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: September 29, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kosuke Takagi, Kiyohiko Maeda, Yuji Urano, Naoki Matsumoto, Yasuaki Komae
  • Patent number: D740769
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: October 13, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kosuke Takagi, Kiyohiko Maeda, Yuji Urano, Naoki Matsumoto, Yasuaki Komae