Patents by Inventor Yoshimi Shioya

Yoshimi Shioya 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: 20090039475
    Abstract: To provide a semiconductor manufacturing apparatus which is able to improve insulation film. An irradiating device comprises irradiating means for irradiating light with a wavelength longer than one corresponding to the absorption edge of insulation film for said insulation film and shorter than one necessary for cutting chemical bonds, to which hydrogen of said insulation film is related.
    Type: Application
    Filed: April 24, 2006
    Publication date: February 12, 2009
    Inventor: Yoshimi Shioya
  • Patent number: 7329612
    Abstract: A semiconductor device is manufactured by the steps of generating a film forming gas by setting a flow rate ratio of H2O to any one of a silicon-contained organic compound having a siloxane bond and a silicon-contained organic compound having a CH3 group to 4 or more and adjusting a gas pressure to 1.5 Torr or more, applying a power to the film forming gas to generate a plasma thereof so as to react it, and thus forming a low-dielectric insulating film (62) on a substrate (61), plasmanizing a process gas containing at least any one of He, Ar, H2 or deuterium, and bringing the low-dielectric insulating film (62) into contact with the plasma of the process gas.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: February 12, 2008
    Assignee: Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Yuhko Nishimoto, Kazuo Maeda
  • Patent number: 7238629
    Abstract: The present invention relates to a deposition method of a low dielectric constant insulating film, which comprises the steps of generating a first deposition gas containing at least one silicon source selecting from the group consisting of silicon containing organic compound having siloxane bond and silicon containing organic compound having CH3 group, and an oxidizing agent consisting of oxygen containing organic compound having alkoxyl group (OR: O is oxygen and R is CH3 or C2H5), and applying electric power to the first deposition gas to generate plasma and then causing reaction to form a low dielectric constant insulating film on a substrate.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: July 3, 2007
    Assignee: Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Kazuo Maeda
  • Publication number: 20060251825
    Abstract: The present invention relates to a method of forming a low dielectric constant insulating film. Its constitution has the steps of: (a) forming an insulating film containing Si—CH3 bond in the skeleton of Si—O—Si on a substrate; (b) irradiating ultraviolet ray to the insulating film in reduced-pressure atmosphere to break CH3 groups from Si—CH3 bond in the insulating film; and (c) ejecting the broken CH3 groups from the insulating film.
    Type: Application
    Filed: June 26, 2006
    Publication date: November 9, 2006
    Applicants: National Institute of Advanced Industrial Science and Technology, Semiconductor Process Laboratory Co., Ltd.
    Inventors: Toshiyuki Ohdaira, Yoshimi Shioya
  • Patent number: 7132171
    Abstract: The present invention relates to a method of forming a low dielectric constant insulating film. Its constitution has the steps of: (a) forming an insulating film containing Si—CH3 bond in the skeleton of Si—O—Si on a substrate; (b) irradiating ultraviolet ray to the insulating film in reduced-pressure atmosphere to break CH3 groups from Si—CH3 bond in the insulating film; and (c) ejecting the broken CH3 groups from the insulating film.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: November 7, 2006
    Assignees: National Institute of Advanced Industrial Science and Technology, Semiconductor Process Laboratory Co., Ltd.
    Inventors: Toshiyuki Ohdaira, Yoshimi Shioya
  • Publication number: 20060099725
    Abstract: A semiconductor device is manufactured by the steps of generating a film forming gas by setting a flow rate ratio of H2O to any one of a silicon-contained organic compound having a siloxane bond and a silicon-contained organic compound having a CH3 group to 4 or more and adjusting a gas pressure to 1.5 Torr or more, applying a power to the film forming gas to generate a plasma thereof so as to react it, and thus forming a low-dielectric insulating film (62) on a substrate (61), plasmanizing a process gas containing at least any one of He, Ar, H2 or deuterium, and bringing the low-dielectric insulating film (62) into contact with the plasma of the process gas.
    Type: Application
    Filed: October 20, 2003
    Publication date: May 11, 2006
    Inventors: Yoshimi Shioya, Yuhko Nishimoto, Kazuo Maeda
  • Publication number: 20050263719
    Abstract: The present invention relates to an ultraviolet ray generator 101, and the generator 101 has an ultraviolet ray lamp 1, a protective tube 2 being made of a material which is transparent with respect to ultraviolet ray and housing the ultraviolet ray lamp 1, and gas introduction port 6a introducing nitrogen gas or inert gas into the protective tube 2.
    Type: Application
    Filed: March 22, 2005
    Publication date: December 1, 2005
    Inventors: Toshiyuki Ohdaira, Yoshimi Shioya
  • Publication number: 20050221622
    Abstract: The present invention relates to a deposition method in which an insulating film that coats wirings mainly made of copper film and has low dielectric constant. Its constitution in the deposition method, where deposition gas is transformed into plasma and reaction is caused to form the insulating film having low dielectric constant, is that the deposition gas has a first silicon containing compound having cyclic siloxane bond and at least one of methyl group and methoxy group, and a second silicon containing organic compound having straight-chain siloxane bond and at least one of methyl group and methoxy group, as primary constituent gas.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 6, 2005
    Inventors: Yoshimi Shioya, Haruo Shimoda, Kazuo Maeda
  • Patent number: 6911405
    Abstract: A process gas consisting of one of N2, N2O or a mixture thereof is converted to a plasma and then a surface of a copper wiring layer is exposed to the plasma of the process gas, whereby a surface portion of the copper wiring layer is reformed and made into a copper diffusion preventing barrier. According to this method, a noble semiconductor device can be provided having increased operational speed and less copper diffusion.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: June 28, 2005
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Kouichi Ohira, Kazuo Maeda, Tomomi Suzuki, Youichi Yamamoto, Yuichiro Kotake, Hiroshi Ikakura, Shoji Ohgawara
  • Patent number: 6852651
    Abstract: The present invention relates to a semiconductor device in which an interlayer insulating film having a low dielectric constant is formed by covering wiring primarily made of a copper film, and to a method of manufacturing the same. In manufacturing the semiconductor device an insulating film having a low dielectric constant is formed on a substrate by converting a film-forming gas into a plasma for reaction. The method includes forming a low-pressure insulating film on the substrate by coverting the film-forming gas at a first gas pressure into a plasma and forming a high-pressure insulating film on the low-pressure insulating film by converting the film-forming gas at second gas pressure, higher than the first gas pressure, into a plasma and reaction.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: February 8, 2005
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Yuichiro Kotake, Tomomi Suzuki, Hiroshi Ikakura, Kazuo Maeda
  • Publication number: 20050014391
    Abstract: The present invention relates to a deposition method of a low dielectric constant insulating film, which comprises the steps of generating a first deposition gas containing at least one silicon source selecting from the group consisting of silicon containing organic compound having siloxane bond and silicon containing organic compound having CH3 group, and an oxidizing agent consisting of oxygen containing organic compound having alkoxyl group (OR: O is oxygen and R is CH3 or C2H5), and applying electric power to the first deposition gas to generate plasma and then causing reaction to form a low dielectric constant insulating film on a substrate.
    Type: Application
    Filed: June 15, 2004
    Publication date: January 20, 2005
    Inventors: Yoshimi Shioya, Kazuo Maeda
  • Publication number: 20050003213
    Abstract: The present invention relates to a method of forming a low dielectric constant insulating film. Its constitution has the steps of: (a) forming an insulating film containing Si—CH3 bond in the skeleton of Si—O—Si on a substrate; (b) irradiating ultraviolet ray to the insulating film in reduced-pressure atmosphere to break CH3 groups from Si—CH3 bond in the insulating film; and (c) ejecting the broken CH3 groups from the insulating film.
    Type: Application
    Filed: May 18, 2004
    Publication date: January 6, 2005
    Inventors: Toshiyuki Ohdaira, Yoshimi Shioya
  • Patent number: 6815824
    Abstract: The present invention relates to a semiconductor device in which a barrier insulating film is formed to cover a copper film or a wiring consisting mainly of the copper film. The barrier insulating film is a structure of two or more layers including at least a first barrier insulating film containing silicon, oxygen, nitrogen and hydrogen or silicon, oxygen, nitrogen, hydrogen and carbon, and a second barrier insulating film containing silicon, oxygen and hydrogen or silicon, oxygen, hydrogen and carbon.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: November 9, 2004
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co. Ld.
    Inventors: Yoshimi Shioya, Yuhko Nishimoto, Kazuo Maeda, Tomomi Suzuki, Hiroshi Ikakura
  • Patent number: 6780790
    Abstract: A semiconductor device having a barrier insulating film covering a copper wiring is formed by a plasma enhanced CVD method. The method includes supplying high frequency power of a frequency of 1 MHz or more to a first electrode, and holding a substrate on which copper wiring is formed on a second electrode facing the first electrode; supplying a film forming gas containing an alkyl compound and an oxygen-containing gas between the first and second electrodes while regulating gas pressure of the film forming gas to 1 Torr or less; and supplying high frequency power to either of the first and second electrodes to convert the film forming gas into a plasma, and allowing the alkyl compound and the oxygen-containing gas of the film forming gas to react to form a barrier insulating film covering the surface of the substrate.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: August 24, 2004
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Yuhko Nishimoto, Tomomi Suzuki, Kazuo Maeda
  • Patent number: 6713383
    Abstract: A surface of a copper (Cu) wiring layer formed over a semiconductor substrate is exposed to a plasma gas selected from the group consisting of an ammonia gas, a mixed gas of nitrogen and hydrogen, a CF4 gas, a C2F6 gas and a NF3 gas. The surface of the copper (Cu) wiring layer is then exposed to an atmosphere or a plasma of a gas selected from the group consisting of an ammonia gas, an ethylenediamine gas, a fÀ-diketone gas, a mixed gas consisting of the ammonia gas and a hydrocarbon gas (CxHy), and a mixed gas consisting of a nitrogen gas and the hydrocarbon gas (CxHy), and a Cu diffusion preventing insulating film is formed on the copper (Cu) wiring layer.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: March 30, 2004
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Yuhko Nishimoto, Tomomi Suzuki, Shoji Ohgawara, Kazuo Maeda
  • Publication number: 20040057684
    Abstract: The present invention relates to an optical waveguide constituting an optical integrated circuit and a method of manufacturing the same. In a method of manufacturing an optical waveguide having a core layer 22a, 22b, 23b and a cladding layer 23a, 24 for covering the core layer 22a, 22b, 23b, a silicon nitride film serving as the core layer 22a, 22b, 23b is formed by plasmanizing a gas mixture containing methylsilane and at least any one of nitrogen (N2) or ammonia (NH3) to react.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 25, 2004
    Applicant: Yasuo KOKUBUN and SEMICONDUCTOR PROCESS LABORATORY CO., LTD.
    Inventors: Yasuo Kokubun, Yoshimi Shioya, Kazuo Maeda
  • Patent number: 6673725
    Abstract: The present invention relates to a semiconductor device manufacturing method for forming an interlayer insulating film having a low dielectric constant by coating a copper wiring. The low dielectric constant insulating film is formed by reaction of a plasma of a film-forming gas containing an oxygen-containing gas of N2O, H2O, or CO2, ammonia (NH3), and at least one of an alkyl compound having a siloxane bond and methylsilane (SiHn(CH3)4−n: n=0, 1, 2, 3).
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: January 6, 2004
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Kouichi Ohira, Kazuo Maeda
  • Patent number: 6649495
    Abstract: The present invention relates to a manufacturing method of a semiconductor device in which a barrier insulating film and a main insulating film having low relative dielectric constant are sequentially formed while a wiring mainly consisting of copper film is coated.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: November 18, 2003
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Yuhko Nishimoto, Tomomi Suzuki, Hiroshi Ikakura, Kazuo Maeda
  • Patent number: 6645883
    Abstract: The present invention discloses a film forming method for forming an insulating film having a low dielectric constant. This method comprises the steps of adding at least one diluting gas of an inert gas and a nitrogen gas (N2) to a major deposition gas component consisting of siloxane and N2O, converting the resultant deposition gas into plasma, causing reaction in the plasma, and forming an insulating film 25,27, or 28 on a substrate targeted for film formation.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: November 11, 2003
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Youichi Yamamoto, Hiroshi Ikakura, Tomomi Suzuki, Yuichiro Kotake, Yoshimi Shioya, Kouichi Ohira, Shoji Ohgawara, Kazuo Maeda
  • Patent number: 6642157
    Abstract: There is provided the film forming method of forming the insulating film 204 containing silicon on the substrate 103 by plasmanizing the compound having the siloxane bonds and the oxidizing gas to react with each other.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: November 4, 2003
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Yuichiro Kotake, Youichi Yamamoto, Tomomi Suzuki, Hiroshi Ikakura, Shoji Ohgawara, Kouichi Ohira, Kazuo Maeda