Patents by Inventor Seiji Matsuyama

Seiji Matsuyama 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: 20230298884
    Abstract: Methods for depositing ultrathin films by atomic layer deposition with reduced wafer-to-wafer variation are provided. Methods involve exposing the substrate to soak gases including one or more gases used during a plasma exposure operation of an atomic layer deposition cycle prior to the first atomic layer deposition cycle to heat the substrate to the deposition temperature.
    Type: Application
    Filed: March 22, 2023
    Publication date: September 21, 2023
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Patent number: 11670503
    Abstract: Methods for depositing ultrathin films by atomic layer deposition with reduced wafer-to-wafer variation are provided. Methods involve exposing the substrate to soak gases including one or more gases used during a plasma exposure operation of an atomic layer deposition cycle prior to the first atomic layer deposition cycle to heat the substrate to the deposition temperature.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: June 6, 2023
    Assignee: Lam Research Corporation
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Patent number: 11646198
    Abstract: Methods for depositing films by atomic layer deposition using aminosilanes are provided.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: May 9, 2023
    Assignee: Lam Research Corporation
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Publication number: 20210343520
    Abstract: Methods for depositing ultrathin films by atomic layer deposition with reduced wafer-to-wafer variation are provided. Methods involve exposing the substrate to soak gases including one or more gases used during a plasma exposure operation of an atomic layer deposition cycle prior to the first atomic layer deposition cycle to heat the substrate to the deposition temperature.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Applicant: Lam Research Corporation
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Patent number: 11101129
    Abstract: Methods for depositing films by atomic layer deposition using cyclic siloxane precursors are provided. Methods involve exposing the substrate to a cyclic siloxane precursor during operation of an atomic layer deposition cycle to form silicon oxide.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 24, 2021
    Assignee: Lam Research Corporation
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Publication number: 20200152446
    Abstract: Methods for depositing ultrathin films by atomic layer deposition with reduced wafer-to-wafer variation are provided. Methods involve exposing the substrate to soak gases including one or more gases used during a plasma exposure operation of an atomic layer deposition cycle prior to the first atomic layer deposition cycle to heat the substrate to the deposition temperature.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 14, 2020
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Patent number: 10566187
    Abstract: Methods for depositing ultrathin films by atomic layer deposition with reduced wafer-to-wafer variation are provided. Methods involve exposing the substrate to soak gases including one or more gases used during a plasma exposure operation of an atomic layer deposition cycle prior to the first atomic layer deposition cycle to heat the substrate to the deposition temperature.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: February 18, 2020
    Assignee: Lam Research Corporation
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Publication number: 20190378710
    Abstract: Methods for depositing ultrathin films by atomic layer deposition with reduced wafer-to-wafer variation are provided. Methods involve exposing the substrate to soak gases including one or more gases used during a plasma exposure operation of an atomic layer deposition cycle prior to the first atomic layer deposition cycle to heat the substrate to the deposition temperature.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 12, 2019
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Publication number: 20160276148
    Abstract: Methods for depositing ultrathin films by atomic layer deposition with reduced wafer-to-wafer variation are provided. Methods involve exposing the substrate to soak gases including one or more gases used during a plasma exposure operation of an atomic layer deposition cycle prior to the first atomic layer deposition cycle to heat the substrate to the deposition temperature.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 22, 2016
    Inventors: Jun Qian, Hu Kang, Adrien LaVoie, Seiji Matsuyama, Purushottam Kumar
  • Patent number: 8288833
    Abstract: A semiconductor device includes: a semiconductor substrate; an interface layer formed on the semiconductor substrate; a high-k gate dielectric film formed on the interface layer; and a gate electrode formed on the high-k gate dielectric film. The high-k gate dielectric film contains La. The high-k gate dielectric film has the higher La concentration in an interface with the gate electrode than in an interface with the interface layer.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: October 16, 2012
    Assignee: Panasonic Corporation
    Inventor: Seiji Matsuyama
  • Patent number: 8183165
    Abstract: According to the present invention,when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to from an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently,it is possible to improve quality of the oxynitride film, resulting in a reduced leadage current, an improved operating speed, and improved NBTI resistance.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: May 22, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Seiji Matsuyama, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Patent number: 8021987
    Abstract: An insulting film is modified by subjecting the insulting film to a modification treatment comprising a combination of a plasma treatment and a thermal annealing treatment. There is provided a method of enhancing the characteristic of an insulating film by improving deterioration in the characteristic of the insulating film due to carbon, a suboxide, a dangling bond or the like contained in the insulating film.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: September 20, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Takuya Sugawara, Yoshihide Tada, Genji Nakamura, Shigenori Ozaki, Toshio Nakanishi, Masaru Sasaki, Seiji Matsuyama, Kazuhide Hasebe, Shigeru Nakajima, Tomonori Fujiwara
  • Publication number: 20110124202
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Application
    Filed: February 1, 2011
    Publication date: May 26, 2011
    Applicant: Tokyo Electron Limited
    Inventors: Seiji MATSUYAMA, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Publication number: 20110062530
    Abstract: A semiconductor device includes: a semiconductor substrate; an interface layer formed on the semiconductor substrate; a high-k gate dielectric film formed on the interface layer; and a gate electrode formed on the high-k gate dielectric film. The high-k gate dielectric film contains La. The high-k gate dielectric film has the higher La concentration in an interface with the gate electrode than in an interface with the interface layer.
    Type: Application
    Filed: November 18, 2010
    Publication date: March 17, 2011
    Applicant: PANASONIC CORPORATION
    Inventor: Seiji Matsuyama
  • Patent number: 7897518
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: March 1, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Seiji Matsuyama, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Patent number: 7883746
    Abstract: In an insulating film formation method, a cycle A in which O3 at a low flow rate is supplied onto a substrate and then O3 supplied is allowed to react with Hf on the substrate in a non-equilibrium state to form a hafnium oxide film is carried out M times (M?1), and a cycle B in which O3 at a high flow rate is supplied onto the substrate and then O3 supplied is allowed to react with Hf on the substrate in an equilibrium state to form a hafnium oxide film is carried out N times (N?1). These insulating film formation cycles are defined as one sequence. This sequence is repeated until a desired thickness is obtained, thereby forming a target insulating film.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 8, 2011
    Assignee: Panasonic Corporation
    Inventors: Jun Suzuki, Kenji Yoneda, Seiji Matsuyama
  • Publication number: 20100196627
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Application
    Filed: April 9, 2010
    Publication date: August 5, 2010
    Applicant: Tokyo Electron Limited
    Inventors: Seiji MATSUYAMA, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Patent number: 7759598
    Abstract: A method for hydrogen sintering a substrate including a semiconductor device formed thereon comprises the steps of exciting a processing gas comprising a noble gas and a hydrogen gas to form a plasma comprising hydrogen radicals and hydrogen ions, and exposing the substrate to the plasma. A preferred method comprises forming a gate insulation film on a substrate, forming a polysilicon electrode on the gate insulation film, and exposing the polysilicon electrode to an atmosphere comprising hydrogen radicals and hydrogen ions.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 20, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Takuya Sugawara, Seiji Matsuyama, Masaru Sasaki
  • Patent number: 7723241
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: May 25, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Seiji Matsuyama, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Publication number: 20100105215
    Abstract: An insulting film is modified by subjecting the insulting film to a modification treatment comprising a combination of a plasma treatment and a thermal annealing treatment. There is provided a method of enhancing the characteristic of an insulating film by improving deterioration in the characteristic of the insulating film due to carbon, a suboxide, a dangling bond or the like contained in the insulating film.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 29, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Takuya SUGAWARA, Yoshihide TADA, Genji NAKAMURA, Shigenori OZAKI, Toshio NAKANISHI, Masaru SASAKI, Seiji MATSUYAMA, Kazuhide HASEBE, Shigeru NAKAJIMA, Tomonori FUJIWARA