Patents by Inventor Kimihiko NAKATANI

Kimihiko NAKATANI 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: 9812355
    Abstract: A method of manufacturing a semiconductor device includes providing a substrate having an insulating film and a plurality of conductive films on a surface; reducing the substrate by supplying a first reducing gas to the substrate so that at least one of a plurality of process conditions of the first reducing gas is controlled so that a product of a plurality of process conditions becomes a predetermined value, wherein the process conditions of the first reducing gas include a partial pressure of the first reducing gas in a region where the substrate exists and a time taken to supply the first reducing gas to the substrate corresponding to a temperature of the first reducing gas; and selectively forming a metal film on the plurality of the reduced conductive films by supplying a second reducing gas and a metal-containing gas to the substrate.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: November 7, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kimihiko Nakatani, Hiroshi Ashihara
  • Patent number: 9761456
    Abstract: A method of manufacturing a semiconductor device includes (a) providing a substrate and (b) forming a film including a first element, a second element and a third element in a same group as the second element on the substrate by performing a cycle a predetermined number of times, the cycle including: (b-1) supplying a halogen-based source gas including the first element to the substrate; (b-2) supplying a first reactive gas including the second element and reactive with the halogen-based source gas; and (b-3) supplying a second reactive gas including the third element without mixing the second reactive gas with the first reactive gas, wherein the second reactive gas is reactive with the halogen-based source gas and unreactive with the first reactive gas.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: September 12, 2017
    Assignee: Hitachi Kokusai Electric, Inc.
    Inventors: Kimihiko Nakatani, Kazuhiro Harada, Masahito Kitamura
  • Patent number: 9728409
    Abstract: Provided is a method of manufacturing a semiconductor device, including: forming a stacked metal nitride film including a first metal nitride film and a second metal nitride film on a substrate by alternately performing steps (a) and (b) a plurality of times, wherein the step (a) includes alternately supplying: a first metal source containing a first halogen element and a metal element; and a nitrogen-containing source to the substrate a plurality of times to form the first metal nitride film, and the step (b) includes alternately supplying: a second metal source containing a second halogen element different from the first halogen element and the metal element; and the nitrogen-containing source to the substrate a plurality of times to form the second metal nitride film.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: August 8, 2017
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Kazuhiro Harada, Kimihiko Nakatani, Hiroshi Ashihara
  • Patent number: 9558937
    Abstract: A method of manufacturing a semiconductor device includes: (a) forming a first film containing a metal element on a substrate by performing a cycle a predetermined number of times, the cycle including: (a-1) supplying a first precursor gas being a fluorine-free inorganic gas containing the metal element to the substrate; and (a-2) supplying a first reactant gas having reducibility to the substrate; (b) forming a second film containing the metal element on the first film by performing a cycle a predetermined number of times, the cycle including: (b-1) supplying a second precursor gas containing the metal element and fluorine to the substrate; and (b-2) supplying a second reactant gas having reducibility to the substrate; and (c) forming a film containing the metal element and obtained by the first film and the second film being laminated on the substrate by performing the (a) and (b).
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: January 31, 2017
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kimihiko Nakatani, Kazuhiro Harada, Hiroshi Ashihara, Ryuji Yamamoto
  • Publication number: 20170018419
    Abstract: A method of manufacturing: a semiconductor device includes fanning an oxide film containing a metal element on a substrate by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: supplying a precursor containing a metal element and a halogen group to the substrate; and supplying an oxidant to the substrate. In the act of supplying the oxidant, a catalyst is supplied to the substrate together with the oxidant. In the act of supplying the precursor, the catalyst is not supplied to the substrate.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 19, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Takuro USHIDA, Tsukasa KAMAKURA, Yoshiro HIROSE, Kimihiko NAKATANI
  • Publication number: 20170011926
    Abstract: Provided is a method of manufacturing a semiconductor device, including: forming a stacked metal nitride film including a first metal nitride film and a second metal nitride film on a substrate by alternately performing steps (a) and (b) a plurality of times, wherein the step (a) includes alternately supplying: a first metal source containing a first halogen element and a metal element; and a nitrogen-containing source to the substrate a plurality of times to form the first metal nitride film, and the step (b) includes alternately supplying: a second metal source containing a second halogen element different from the first halogen element and the metal element; and the nitrogen-containing source to the substrate a plurality of times to form the second metal nitride film.
    Type: Application
    Filed: September 26, 2016
    Publication date: January 12, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kazuhiro HARADA, Kimihiko NAKATANI, Hiroshi ASHIHARA
  • Publication number: 20170004961
    Abstract: An oxide film is formed on a substrate by performing a cycle a predetermined number of times. The cycle includes: continuously performing supplying in advance an oxidant to a substrate in a process chamber and simultaneously supplying the oxidant and a precursor to the substrate in the process chamber, without having to purge an interior of the process chamber between the act of supplying in advance the oxidant and the act of simultaneously supplying the oxidant and the precursor; stopping the supply of the oxidant and the precursor to the substrate in the process chamber and purging the interior of the process chamber; and supplying the oxidant to the substrate in the purged process chamber.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 5, 2017
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Takuro USHIDA, Tsukasa KAMAKURA, Hiroshi ASHIHARA, Kimihiko NAKATANI
  • Patent number: 9418855
    Abstract: A halogen element-containing metal material and a nitrogen-containing material are alternately supplied to a process chamber with a flow rate of an inert gas supplied to the process chamber together with the nitrogen-containing material during the supplying of the nitrogen-containing material to the process chamber being more increased than a flow rate of the inert gas supplied to the process chamber together with the metal material during the supplying of the metal material to the process chamber.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: August 16, 2016
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kimihiko Nakatani, Kazuhiro Harada, Hiroshi Ashihara
  • Publication number: 20160148811
    Abstract: A method of manufacturing a semiconductor device includes (a) providing a substrate and (b) forming a film including a first element, a second element and a third element in a same group as the second element on the substrate by performing a cycle a predetermined number of times, the cycle including: (b-1) supplying a halogen-based source gas including the first element to the substrate; (b-2) supplying a first reactive gas including the second element and reactive with the halogen-based source gas; and (b-3) supplying a second reactive gas including the third element without mixing the second reactive gas with the first reactive gas, wherein the second reactive gas is reactive with the halogen-based source gas and unreactive with the first reactive gas.
    Type: Application
    Filed: November 20, 2015
    Publication date: May 26, 2016
    Inventors: Kimihiko NAKATANI, Kazuhiro HARADA, Masahito KITAMURA
  • Publication number: 20160042940
    Abstract: A method of manufacturing a semiconductor device includes: (a) forming a first film containing a metal element on a substrate by performing a cycle a predetermined number of times, the cycle including: (a-1) supplying a first precursor gas being a fluorine-free inorganic gas containing the metal element to the substrate; and (a-2) supplying a first reactant gas having reducibility to the substrate; (b) forming a second film containing the metal element on the first film by performing a cycle a predetermined number of times, the cycle including: (b-1) supplying a second precursor gas containing the metal element and fluorine to the substrate; and (b-2) supplying a second reactant gas having reducibility to the substrate; and (c) forming a film containing the metal element and obtained by the first film and the second film being laminated on the substrate by performing the (a) and (b).
    Type: Application
    Filed: October 19, 2015
    Publication date: February 11, 2016
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kimihiko NAKATANI, Kazuhiro HARADA, Hiroshi ASHIHARA, Ryuji YAMAMOTO
  • Patent number: 9187826
    Abstract: A method of manufacturing a semiconductor device includes: (a) forming a first film containing a metal element on a substrate by performing a cycle a predetermined number of times, the cycle including: (a-1) supplying a first precursor gas being a fluorine-free inorganic gas containing the metal element to the substrate; and (a-2) supplying a first reactant gas having reducibility to the substrate; (b) forming a second film containing the metal element on the first film by performing a cycle a predetermined number of times, the cycle including: (b-1) supplying a second precursor gas containing the metal element and fluorine to the substrate; and (b-2) supplying a second reactant gas having reducibility to the substrate; and (c) forming a film containing the metal element and obtained by the first film and the second film being laminated on the substrate by performing the (a) and (b).
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: November 17, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kimihiko Nakatani, Kazuhiro Harada, Hiroshi Ashihara, Ryuji Yamamoto
  • Publication number: 20150279682
    Abstract: A halogen element-containing metal material and a nitrogen-containing material are alternately supplied to a process chamber with a flow rate of an inert gas supplied to the process chamber together with the nitrogen-containing material during the supplying of the nitrogen-containing material to the process chamber being more increased than a flow rate of the inert gas supplied to the process chamber together with the metal material during the supplying of the metal material to the process chamber.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kimihiko NAKATANI, Kazuhiro HARADA, Hiroshi ASHIHARA
  • Publication number: 20150093911
    Abstract: A method of manufacturing a semiconductor device includes: (a) forming a first film containing a metal element on a substrate by performing a cycle a predetermined number of times, the cycle including: (a-1) supplying a first precursor gas being a fluorine-free inorganic gas containing the metal element to the substrate; and (a-2) supplying a first reactant gas having reducibility to the substrate; (b) forming a second film containing the metal element on the first film by performing a cycle a predetermined number of times, the cycle including: (b-1) supplying a second precursor gas containing the metal element and fluorine to the substrate; and (b-2) supplying a second reactant gas having reducibility to the substrate; and (c) forming a film containing the metal element and obtained by the first film and the second film being laminated on the substrate by performing the (a) and (b).
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Applicant: Hitachi Kokusai Electric Inc.
    Inventors: Kimihiko NAKATANI, Kazuhiro HARADA, Hiroshi ASHIHARA, Ryuji YAMAMOTO