Patents by Inventor Hiroshi Ikakura

Hiroshi Ikakura 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: 20030104689
    Abstract: The present invention provides a manufacturing method of a semiconductor device, in which a main insulating film whose relative dielectric constant is drastically reduced can be formed on a barrier insulating film that covers wirings mainly consist of copper film. The configuration of the method is that film forming gas containing either siloxane or methylsilane, oxygen-containing gas, and etching gas, is transformed into plasma to cause reaction so as to form an insulating film 35b having low dielectric constant on a substrate 21 subject to deposition.
    Type: Application
    Filed: October 30, 2002
    Publication date: June 5, 2003
    Applicant: CANON SALES CO., INC. AND SEMICONDUCTOR PROCESS LABORATORY CO., LTD.
    Inventors: Yoshimi Shioya, Kazuo Maeda, Hiroshi Ikakura
  • Publication number: 20030042613
    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. In structure, the barrier insulating film 34a comprises a double-layered structure or more that is provided with at least a first barrier insulating film 34aa containing silicon, oxygen, nitrogen and hydrogen or silicon, oxygen, nitrogen, hydrogen and carbon, and a second barrier insulating film 34ab containing silicon, oxygen and hydrogen or silicon, oxygen, hydrogen and carbon.
    Type: Application
    Filed: June 24, 2002
    Publication date: March 6, 2003
    Applicant: CANON SALES CO., INC.
    Inventors: Yoshimi Shioya, Yuhko Nishimoto, Kazuo Maeda, Tomomi Suzuki, Hiroshi Ikakura
  • Patent number: 6514855
    Abstract: The present invention relates to a semiconductor device manufacturing method for forming a via hole or a contact hole in an interlayer insulating film with a low dielectric constant. The method includes the steps of forming a nitrogen containing insulating film on a substrate, forming a porous insulating film on the nitrogen-containing insulating film, forming an opening in the underlying insulating film and the porous insulating film, and forming a nitrogen containing insulating film on the surface of the porous insulating film and on the surface of the opening by bringing these surfaces into contact with a plasma of any one of an ammonia gas, a nitrogen gas, and an oxygen nitride gas.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: February 4, 2003
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Tomomi Suzuki, Hiroshi Ikakura, Kazuo Maeda, Yoshimi Shioya, Koichi Ohira
  • Publication number: 20030022468
    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: Application
    Filed: June 10, 2002
    Publication date: January 30, 2003
    Inventors: Yoshimi Shioya, Yuhko Nishimoto, Tomomi Suzuki, Hiroshi Ikakura, Kazuo Maeda
  • Patent number: 6479409
    Abstract: Disclosed is a method of fabricating a semiconductor device, in which an interlayer insulating film having a low dielectric constant is formed by coating a wiring, and either a via hole or a contact hole is formed in the interlayer insulating film. The method of fabricating a semiconductor device having the interlayer insulating film 25 formed on the film-formed substrate 21 with the exposed wiring 23, comprises the step of converting a silicon compound containing only the Si, O, C and H into a plasma gas as a film-forming gas to react the plasma gas, thus forming the block insulating film 24 containing silicon (Si), oxygen (O), carbon (C) and hydrogen (H) between the wiring 23 and the interlayer insulating film 25.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: November 12, 2002
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Yoshimi Shioya, Kouichi Ohira, Kazuo Maeda, Tomomi Suzuki, Hiroshi Ikakura, Youichi Yamamoto, Yuichiro Kotake, Shoji Ohgawara, Makoto Kurotobi
  • Patent number: 6472334
    Abstract: There is provided a method of forming a silicon-containing insulating film on a substrate by reacting a compound having siloxane bonds and Si—R bonds (R is alkyl group) with a plasmanized reaction gas containing an oxidizing gas and H2.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: October 29, 2002
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Hiroshi Ikakura, Tomomi Suzuki, Kazuo Maeda, Yoshimi Shioya, Kouichi Ohira
  • Publication number: 20020123218
    Abstract: A process gas containing any one of N2 or N2O is plasmanized and then a surface of a copper wiring layer is exposed to the plasmanized process gas, whereby a surface layer portion of a copper wiring layer is reformed and made into a copper diffusion preventing layer. According to this method, a noble semiconductor device can be provided, in which, along with increasing the operation speed, the copper diffusion is suppressed.
    Type: Application
    Filed: November 20, 2001
    Publication date: September 5, 2002
    Applicant: CANON SALES CO., LTD.
    Inventors: Yoshimi Shioya, Kouichi Ohira, Kazuo Maeda, Tomomi Suzuki, Youichi Yamamoto, Yuichiro Kotake, Hiroshi Ikakura, Shoji Ohgawara
  • Publication number: 20020113316
    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. As for the constitution of the method of manufacturing a semiconductor device in which an insulating film 34 having a low dielectric constant is formed on a substrate 21 by allowing a film-forming gas to be converted into a plasma state and to react, the method comprises a step of forming a low-pressure insulating film 34a that constitutes the insulating film 34 on the substrate 21 by allowing said film-forming gas at first gas pressure to be converted into a plasma state and to react, and a step of forming a high-pressure insulating film 34b that constitutes the insulating film 34 on the low-pressure insulating film 34a by allowing the film-forming gas at second gas pressure being higher than the first gas pressure to be converted into a plasma state and to react.
    Type: Application
    Filed: October 2, 2001
    Publication date: August 22, 2002
    Applicant: CONON SALES CO., LTD.
    Inventors: Yoshimi Shioya, Yuichiro Kotake, Tomomi Suzuki, Hiroshi Ikakura, Kazuo Maeda
  • Publication number: 20020013060
    Abstract: In a semiconductor device manufacturing method for forming an interlayer insulating film having a low dielectric constant on a substrate 21 from a surface of which a copper wiring 23 is exposed, the interlayer insulating film consists of multi-layered insulating films 24, 25, 29 and the insulating film 24, that contacts to the copper wiring 23, out of the multi-layered insulating films 24, 25, 29 is formed by plasmanizing a film forming gas containing at least an alkyl compound having siloxane bonds and any one of nitrogen (N2) and ammonia (NH3) to react.
    Type: Application
    Filed: July 3, 2001
    Publication date: January 31, 2002
    Applicant: CANON SALES CO., INC. and SEMICONDUCTOR PROCESS LABORATORY CO., LTD.
    Inventors: Yoshimi Shioya, Kouichi Ohira, Kazuo Maeda, Tomomi Suzuki, Hiroshi Ikakura, Youichi Yamamoto
  • Publication number: 20020013068
    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,or28 on a substrate targeted for film formation.
    Type: Application
    Filed: May 24, 2001
    Publication date: January 31, 2002
    Applicant: CANON SALES CO., INC.
    Inventors: Youichi Yamamoto, Hiroshi Ikakura, Tomomi Suzuki, Yuichiro Kotake, Yoshimi Shioya, Kouichi Ohira, Shoji Ohgawara, Kazuo Maeda
  • Publication number: 20010041458
    Abstract: There is provided a film forming method of forming a silicon-containing insulating film 204 on a deposited substrate 103 by reacting a compound having siloxane bonds and Si—R bonds (R is alkyl group) with a plasmanized reaction gas containing an oxidizing gas and H2.
    Type: Application
    Filed: April 3, 2001
    Publication date: November 15, 2001
    Applicant: CANON SALES CO., INC.
    Inventors: Hiroshi Ikakura, Tomomi Suzuki, Kazuo Maeda, Yoshimi Shioya, Kouichi Ohira
  • Publication number: 20010034140
    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: Application
    Filed: December 22, 2000
    Publication date: October 25, 2001
    Applicant: CANON SALES CO., INC.
    Inventors: Yoshimi Shioya, Yuichiro Kotake, Youichi Yamamoto, Tomomi Suzuki, Hiroshi Ikakura, Shoji Ohgawara, Kouichi Ohira, Kazuo Maeda
  • Publication number: 20010031563
    Abstract: Disclosed is a method of fabricating a semiconductor device, in which an interlayer insulating film having a low dielectric constant is formed by coating a wiring, and either a via hole or a contact hole is formed in the interlayer insulating film. The method of fabricating a semiconductor device having the interlayer insulating film 25 formed on the film-formed substrate 21 with the exposed wiring 23, comprises the step of converting a silicon compound containing only the Si, O, C and H into a plasma gas as a film-forming gas to react the plasma gas, thus forming the block insulating film 24 containing silicon (Si), oxygen (O), carbon (C) and hydrogen (H) between the wiring 23 and the interlayer insulating film 25.
    Type: Application
    Filed: February 23, 2001
    Publication date: October 18, 2001
    Applicant: CANON SALES CO., INC.
    Inventors: Yoshimi Shioya, Kouichi Ohira, Kazuo Maeda, Tomomi Suzuki, Hiroshi Ikakura, Youichi Yamamoto, Yuichiro Kotake, Shoji Ohgawara, Makoto Kurotobi
  • Patent number: 6255230
    Abstract: Disclosed is a method for modifying a film-forming surface of a substrate, which is capable removing a base surface dependency in forming a film on the film-forming surface of the substrate prior to formation of a film by a thermal CVD method using a reactant gas containing an ozone-containing gas containing ozone (O3) in oxygen (O2) and Tetra-Ethyl-Ortho-Silicate. The method comprises the step of modifying the film-forming surface 12a of the substrate 102 by allowing any one of ammonia, hydrazine, an amine, gases thereof and aqueous solutions thereof to contact with the surface of the substrate before forming an insulating film 13 on the surface 12a of the substrate 102.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: July 3, 2001
    Assignees: Canon Sales Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Hiroshi Ikakura, Syunji Nishikawa, Noboru Tokumasu, Takayoshi Azumi