Patents by Inventor Katsuyuki Sekine

Katsuyuki Sekine 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: 20070063266
    Abstract: A semiconductor device includes a semiconductor region; a first high dielectric constant insulating film provided on the semiconductor region, the first high dielectric constant insulating film being a film other than alumina; a second high dielectric constant insulating film provided on the first high dielectric constant insulating film, the second high dielectric constant insulating film being an alumina film; and a conductive layer provided on the second high dielectric constant insulating film.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 22, 2007
    Inventors: Katsuaki Natori, Masayuki Tanaka, Hirokazu Ishida, Katsuyuki Sekine, Masumi Matsuzaki
  • Publication number: 20070062802
    Abstract: A system for managing a plasma processing apparatus includes an impedance matching tool for matching impedance in a transmission line feeding a high frequency wave generating a plasma into a processing chamber; a collection unit collecting time series data of an adjustment parameter of the impedance matching tool; a reference creation module creating management reference data by reference time series data of the adjustment parameter, the reference time series data collected from a reference plasma process against a reference substrate; an initialization module initializing the adjustment parameter for a target plasma process against a target substrate; a recording module recording target time series data of the adjustment parameter adjusted so as to minimize a reflection wave of the high frequency wave in the target plasma process; and a determination module determining an abnormality of the target plasma process by comparing the target time series data with the management reference data.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 22, 2007
    Inventors: Katsuyuki Sekine, Shinji Mori, Takashi Shimizu
  • Publication number: 20070034974
    Abstract: A semiconductor device comprises a semiconductor region including silicon, and an insulating film including silicon, oxygen, nitrogen, and helium, the dielectric film provided on the semiconductor region, and the dielectric film having a concentration distribution with respect to a film thickness direction, the concentration distribution having a maximal value of concentration of the helium in a surface portion on the semiconductor region side and a maximal value of concentration of the nitrogen in a surface portion on a side opposite to the semiconductor region.
    Type: Application
    Filed: October 25, 2006
    Publication date: February 15, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Katsuyuki Sekine, Seiji Inumiya, Ichiro Mizushima
  • Publication number: 20070020957
    Abstract: A method of forming an insulating film includes forming a base film comprising a material whose surface is oxidized by being exposed to an oxidant. A source gas containing a metal material and a first oxidant having a first oxidation force are alternately supplied to form a first insulating film on the base film. A source gas containing a metal material and a second oxidant having a second oxidation force stronger than the first oxidation force are alternately supplied to form a second insulating film on the first insulating film.
    Type: Application
    Filed: November 10, 2005
    Publication date: January 25, 2007
    Inventors: Ichiro Mizushima, Masayuki Tanaka, Katsuaki Natori, Yoshio Ozawa, Seiji Inumiya, Katsuyuki Sekine, Tetsuya Kai
  • Patent number: 7160818
    Abstract: An aspect of the present invention includes; a silicon oxynitride film having an oxynitride layer which is formed on at least the surface of a silicon substrate and in which nitrogen atoms are in a three-coordinate bond state, and a silicon oxide layer which is formed between said oxynitride layer and said silicon substrate.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: January 9, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobutoshi Aoki, Koichi Kato, Katsuyuki Sekine, Ichiro Mizushima
  • Publication number: 20060273413
    Abstract: There are provided: a semiconductor substrate including first and second device regions isolated by device isolation regions; a first gate insulating film of a high-k material formed in the first device region; a first gate electrode formed on the first gate insulating film; first source and drain regions formed at both sides of the first gate electrode in the first device region; a second gate insulating film of a high-k material which is different from the high-k material of the first gate insulating film, the second gate insulating film being formed in the second device region; a second gate electrode formed on the second gate insulating film; and second source and drain regions formed at both sides of the second gate electrode in the second device region.
    Type: Application
    Filed: July 21, 2005
    Publication date: December 7, 2006
    Inventors: Motoyuki Sato, Katsuyuki Sekine, Kazuaki Nakajima, Tomohiro Saito, Kazuhiro Eguchi, Atsushi Yagishita
  • Patent number: 7141466
    Abstract: According to the present invention, there is provided a semiconductor device comprising: an interface insulating film selectively formed on a predetermined region of a semiconductor substrate, and having a film thickness of substantially one atomic layer; a gate insulating film formed on said interface insulating film, and having a dielectric constant higher than that of said interface insulating film; a gate electrode formed on said gate insulating film; and source and drain regions formed in a surface region of said semiconductor substrate on two sides of a channel region positioned below said gate electrode.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: November 28, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Motoyuki Sato, Kazuhiro Eguchi, Seiji Inumiya, Katsuyuki Sekine, Akio Kaneko
  • Patent number: 7129125
    Abstract: A semiconductor device comprises a semiconductor region including silicon, and an insulating film including silicon, oxygen, nitrogen, and helium, the dielectric film provided on the semiconductor region, and the dielectric film having a concentration distribution with respect to a film thickness direction, the concentration distribution having a maximal value of concentration of the helium in a surface portion on the semiconductor region side and a maximal value of concentration of the nitrogen in a surface portion on a side opposite to the semiconductor region.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: October 31, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Katsuyuki Sekine, Seiji Inumiya, Ichiro Mizushima
  • Publication number: 20060105582
    Abstract: A method is provided with: arranging nitrogen atoms on a surface of a silicon substrate; performing a heat treatment in a hydrogen atmosphere so that the nitrogen atoms and silicon atoms existing on the surface of the silicon substrate are brought into a three-coordinate bond state; and forming a silicon oxide film on the silicon substrate with the three-coordinate bond state of nitrogen atoms and the silicon atoms being maintained.
    Type: Application
    Filed: October 17, 2005
    Publication date: May 18, 2006
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobutoshi Aoki, Koichi Kato, Katsuyuki Sekine, Ichiro Mizushima
  • Publication number: 20060093731
    Abstract: According to the present invention, there is provided a semiconductor device fabrication method comprising: measuring light emission intensity of at least one type of wavelength contained in light emitted from a plasma, when one of nitriding, oxidation, and impurity doping is to be performed on a surface of a semiconductor substrate in a processing vessel by using the plasma; calculating, for each semiconductor substrate, an exposure time during which the semiconductor substrate is exposed to the plasma, on the basis of the measured light emission intensity; and exposing each semiconductor substrate to the plasma on the basis of the calculated exposure time, thereby performing one of the nitriding, oxidation, and impurity doping.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 4, 2006
    Inventors: Katsuyuki Sekine, Seiji Inumiya, Motoyuki Sato, Akio Kaneko, Kazuhiro Eguchi
  • Publication number: 20060094255
    Abstract: According to the present invention, there is provided a semiconductor device comprising: a gate insulating film selectively formed on a predetermined region of a semiconductor substrate; a gate electrode formed on said gate insulating film; and a source region and drain region formed, in a surface portion of said semiconductor substrate, on two sides of a channel region positioned below said gate electrode, wherein a carbon concentration in an interface where said gate insulating film is in contact with said gate electrode is not more than 5×1022 atoms/cm3.
    Type: Application
    Filed: February 4, 2005
    Publication date: May 4, 2006
    Inventors: Katsuyuki Sekine, Akio Kaneko, Motoyuki Sato, Seiji Inumiya, Kazuhiro Eguchi
  • Publication number: 20060057746
    Abstract: According to the present invention, there is provided a semiconductor device fabrication method, comprising: depositing a film made of an insulating material on a surface of a semiconductor substrate; measuring a film thickness and/or composition of the film; setting nitriding conditions or oxidation conditions on the basis of the measurement result; and nitriding or oxidizing the film on the basis of the set nitriding conditions or oxidation conditions.
    Type: Application
    Filed: November 12, 2004
    Publication date: March 16, 2006
    Inventors: Seiji Inumiya, Motoyuki Sato, Akio Kaneko, Katsuyuki Sekine, Kazuhiro Eguchi
  • Patent number: 7012311
    Abstract: A semiconductor device includes a Si crystal having a crystal surface in the vicinity of a (111) surface, and an insulation film formed on said crystal surface, at least a part of said insulation film comprising a Si oxide film containing Kr or a Si nitride film containing Ar or Kr.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: March 14, 2006
    Assignees: Tokyo Electron Limited
    Inventors: Tadahiro Ohmi, Shigetoshi Sugawa, Katsuyuki Sekine, Yuji Saito
  • Publication number: 20050236678
    Abstract: According to the present invention, there is provided a semiconductor device comprising: an interface insulating film selectively formed on a predetermined region of a semiconductor substrate, and having a film thickness of substantially one atomic layer; a gate insulating film formed on said interface insulating film, and having a dielectric constant higher than that of said interface insulating film; a gate electrode formed on said gate insulating film; and source and drain regions formed in a surface region of said semiconductor substrate on two sides of a channel region positioned below said gate electrode.
    Type: Application
    Filed: October 13, 2004
    Publication date: October 27, 2005
    Inventors: Motoyuki Sato, Kazuhiro Eguchi, Seiji Inumiya, Katsuyuki Sekine, Akio Kaneko
  • Publication number: 20050170666
    Abstract: A manufacturing method of a semiconductor device disclosed herein, comprises: forming a silicate film containing metal on a substrate; and introducing nitrogen and deuterium into the silicate film by using ND3 gas.
    Type: Application
    Filed: December 1, 2004
    Publication date: August 4, 2005
    Inventors: Katsuyuki Sekine, Yoshitaka Tsunashima, Seiji Inumiya, Akio Kaneko, Motoyuki Sato, Kazuhiro Eguchi
  • Publication number: 20050158932
    Abstract: A method of manufacturing a semiconductor device, comprises: providing a gate insulation layer of a high dielectric constant containing a metal element on a surface of a semiconductor substrate, part of which becoming a channel; providing a first conductive layer containing a silicon element on the surface of said gate insulation layer, said first conductive layer being a gate electrode; and introducing nitrogen or oxygen onto an interface between said gate insulation layer and said first conductive layer by executing a thermal treatment upon said semiconductor substrate in a atmosphere containing a nitriding agent or an oxidizing agent.
    Type: Application
    Filed: November 24, 2004
    Publication date: July 21, 2005
    Inventors: Seiji Inumiya, Akio Kaneko, Motoyuki Sato, Katsuyuki Sekine, Kazuhiro Eguchi, Yoshitaka Tsunashima
  • Publication number: 20050110101
    Abstract: A semiconductor apparatus wherein a device formed on a semiconductor substrate comprises a gate insulating film including a high dielectric constant film formed on the substrate and an anti-reaction film formed on the high dielectric constant film, and a gate electrode formed on the anti-reaction film, the high dielectric constant film comprises a film containing at least one of Hf and Zr, and Si and O, or a film containing at least one of Hf and Zr, and Si, O and N, the anti-reaction film comprises an SiO2 film, a film containing SiO2 as a main component and at least one of Hf and Zr, a film containing SiO2 as a main component and N, a film containing SiO2 as a main component, Hf and N, a film containing SiO2 as a main component, Zr and N, or a film containing SiO2 as a main component, Hf, Zr and N.
    Type: Application
    Filed: August 27, 2004
    Publication date: May 26, 2005
    Inventors: Akio Kaneko, Kazuhiro Eguchi, Seiji Inumiya, Katsuyuki Sekine, Motoyuki Sato
  • Publication number: 20050106894
    Abstract: An aspect of the present invention includes; a silicon oxynitride film having an oxynitride layer which is formed on at least the surface of a silicon substrate and in which nitrogen atoms are in a three-coordinate bond state, and a silicon oxide layer which is formed between said oxynitride layer and said silicon substrate.
    Type: Application
    Filed: December 27, 2004
    Publication date: May 19, 2005
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobutoshi Aoki, Koichi Kato, Katsuyuki Sekine, Ichiro Mizushima
  • Publication number: 20050087831
    Abstract: A semiconductor device includes a Si crystal having a crystal surface in the vicinity of a (111) surface, and an insulation film formed on said crystal surface, at least a part of said insulation film comprising a Si oxide film containing Kr or a Si nitride film containing Ar or Kr.
    Type: Application
    Filed: November 15, 2004
    Publication date: April 28, 2005
    Applicants: Tadahiro Ohmi, Tokyo Electron Limited
    Inventors: Tadahiro Ohmi, Shigetoshi Sugawa, Katsuyuki Sekine, Yuji Saito
  • Publication number: 20050067704
    Abstract: A semiconductor device according to the present invention comprises a semiconductor substrate, a gate insulating film which is composed of a material whose main component is a tetravalent metal oxide, a mixture of a tetravalent metal oxide and SiO2, or a mixture of a tetravalent metal oxide and SiON and which containing B when it is in an nMOS structure on the semiconductor substrate or containing at least one of P and As when it is in a pMOS structure on the semiconductor substrate, and a gate electrode made of a metal having a work function of 4 eV to 5.5 eV.
    Type: Application
    Filed: December 18, 2003
    Publication date: March 31, 2005
    Inventors: Akio Kaneko, Seiji Inumiya, Katsuyuki Sekine, Kazuhiro Eguchi, Motoyuki Sato