Patents by Inventor Hayashi Otsuki

Hayashi Otsuki 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: 20030147075
    Abstract: The present invention provides a particle measuring system which is provided in a processing system 40 which generates an atmosphere obtained by exhausting air or a gas in a processing chamber 48 by a vacuum pump 98 and applies a process concerning semiconductor manufacture to a wafer W in the atmosphere, attached to an exhaust pipe 90 which connects an exhaust opening 86 of the processing chamber 48 with the vacuum pump 98, and measures the number of the particles in the exhaust gas, and a measuring method thereof, the system and method providing a processing system and a cleaning method which terminate etching process by determining an end point based on the number of the particles in the exhaust gas and perform cleaning of unnecessary films.
    Type: Application
    Filed: December 18, 2002
    Publication date: August 7, 2003
    Inventors: Hayashi Otsuki, Tsukasa Matsuda, Kyoko Ikeda
  • Publication number: 20030129309
    Abstract: The present invention generally relates to a method for depositing a metallic nitride series thin film, typically a TiN-series thin film. The TiN-series thin film according to the present invention is formed by a CVD, and contains Ti, O and N to have a higher barrier characteristic than those of conventional TiN thin films, so that TiN-series thin film can suitably used as a barrier layer. In addition, a TiN-series thin film according to the present invention is formed by a CVD, and contains Ti, N and P to have a lower resistance than those of conventional TiN films, so that TiN-series thin film can suitably used as a barrier layer or a capacitor top electrode. Moreover, if a TiN-series thin film containing Ti, O, N and P is formed by a CVD, the TiN-series thin film can have both of a high barrier characteristic and a low resistance characteristic.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 10, 2003
    Inventor: Hayashi Otsuki
  • Patent number: 6532069
    Abstract: The present invention provides a particle-measuring system and the particle measuring method that is provided in a processing system for generating an atmosphere including atmospheric air or a gas exhausted from within a processing chamber by a vacuum pump, and for processing a wafer W relating to a semiconductor manufacturing in this atmosphere, and that is installed on an exhaust pipe connecting between an exhaust opening of the processing chamber and the vacuum pump, for measuring the number of particles included in the exhaust gas.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: March 11, 2003
    Assignee: Tokyo Electron Limited
    Inventors: Hayashi Otsuki, Tsukasa Matsuda, Kyoko Ikeda
  • Publication number: 20030034560
    Abstract: A wiring structure of a semiconductor device according to the present invention comprises a first conducting layer for electrically connecting with a semiconductor element or a wiring element formed on a semiconductor substrate, a barrier metal formed on the first conducting layer, and a second conducting layer formed on the barrier metal, for electrically connecting with the first conducting layer via the barrier metal, in which the barrier metal is formed of WNx (tungsten nitride) or WSixNy (tungsten silicide nitride).
    Type: Application
    Filed: May 5, 2000
    Publication date: February 20, 2003
    Inventors: KIMIHIRO MATSUSE, HAYASHI OTSUKI
  • Publication number: 20030031794
    Abstract: A Ti film is formed by CVD in holes formed in an insulating film formed on a Si substrate or on a Si film formed on a Si substrate by a method according to the present invenitioin. The method includes the steps of: loading a Si substrate into a film forming chamber; evacuating the chamber at a predetermined vacuum; supplying TiCl4 gas, H2 gas, Ar gas and SiH4 gas into the film forming chamber; and producing a plasma in the film forming chamber to deposit a Ti film in the holes formed in the insulating film. The Si substrate is heated at 500° C. or below during the deposition of the Ti film. The flow rate of the SiH4 gas is from 30 to 70% of the flow rate of the TiCl4 gas. This method enables formation of a Ti film on a Si base at positions of holes in an insulating layer, with a good morphology of the interface between the Si base and the Ti film and with a good step coverage.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 13, 2003
    Inventors: Kunihiro Tada, Hayashi Otsuki
  • Publication number: 20020197856
    Abstract: There is provided a method of forming a barrier metal which is designed to be interposed between a metal layer and an insulating layer, both constituting a multi-layered structure of semiconductor device, the method comprising the steps of positioning a substrate having the insulating layer formed thereon at a predetermined position inside a processing vessel forming a processing space, and alternately introducing a gas containing a refractory metallic atom, a gas containing Si atom and a gas containing N atom into the processing vessel under a predetermined processing pressure, thereby allowing a refractory metal nitride or a refractory metal silicon nitride to be deposited on the insulating layer by way of atomic layer deposition.
    Type: Application
    Filed: August 22, 2002
    Publication date: December 26, 2002
    Inventors: Kimihiro Matsuse, Hayashi Otsuki
  • Patent number: 6451388
    Abstract: A Ti film is formed by chemical vapor deposition in holes formed in an insulating film formed on a Si substrate or on a Si film formed on a Si substrate by a method comprising the steps of: loading a Si substrate into a film forming chamber; evacuating the chamber at a predetermined vacuum; supplying TiCl4 gas, H2 gas, Ar gas and SiH4 gas into the film forming chamber; and producing a plasma in the film forming chamber to deposit a Ti film in the holes formed in the insulating film. The Si substrate is heated at a temperature of from 550 to 700° C. during the deposition of the Ti film, and the flow rates of the processing gases are regulated so that Si-to-insulator selectivity is not less than one. This method enables formation of a Ti film on a Si base at positions of holes in an insulating layer, with a good morphology of the interface between the Si base and the Ti film and with a good step coverage.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: September 17, 2002
    Assignee: Tokyo Electron Limited
    Inventors: Kunihiro Tada, Hayashi Otsuki
  • Publication number: 20010003271
    Abstract: A processing apparatus of the present invention has a mounted chamber holding a semiconductor wafer and having members for work-processing the substrate under any of heating, plasma and process gas or a combination of them, in which a film of Al2O3 and Y2O3 is formed on an inner wall surface of the chamber and on those exposed surface of the members within the chamber and has a high-corrosion resistance and insulating property and, when the process gas is introduced onto a processing surface of a semiconductor wafer and diffused into it, any product is less liable to be deposited on a plasma generation area and on those members held within the chamber.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 14, 2001
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Hayashi Otsuki
  • Patent number: 6177149
    Abstract: A Ti film is formed by CVD in holes formed in an insulating film formed on a Si substrate or on a Si film formed on a Si substrate by a method comprising the steps of: loading a Si substrate into a film forming chamber; evacuating the chamber at a predetermined vacuum; supplying TiCl4 gas, H2 gas, Ar gas and SiH4 gas into the film forming chamber; and producing a plasma in the film forming chamber to deposit a Ti film in the holes formed in the insulating film. The Si substrate is heated at 550° C. or above during the deposition of the Ti film, and the flow rates of the processing gases are regulated so that Si-to-insulator selectivity is not less than one. This method enables formation of a Ti film on a Si base at positions of holes in an insulating layer, with a good morphology of the interface between the Si base and the Ti film and with a good step coverage.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 23, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Kunihiro Tada, Hayashi Otsuki
  • Patent number: 5474641
    Abstract: The present invention relates to a processing chamber that processes an object to be processed in an atmosphere of a processing gas. The processing chamber is provided with a mounting stand having a holder mechanism that holds the object to be processed within the processing chamber. The mounting stand is connected to a rotational mechanism and is free to rotate, and the holder mechanism on the mounting stand is also provided with a separate, independent rotational mechanism whereby the front surface and rear surface of the object to be processed can be rotated (inverted) relative to the mounting stand. Thus the present invention provides a processing method and apparatus therefor in which the front surface and rear surface of the object to be processed can be processed under the same conditions, without having to change the atmospheric status of the object to be processed.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: December 12, 1995
    Assignee: Tokyo Electron Kabushiki Kaisha
    Inventors: Hayashi Otsuki, Yoichi Deguchi