Patents by Inventor Kanako Tsumagari

Kanako Tsumagari 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).

  • Patent number: 8367542
    Abstract: A method for manufacturing a semiconductor device that improves the reliability of a metal cap layer and productivity. The method includes an insulation layer step of superimposing an insulation layer(11) on a semiconductor substrate (2) including an element region (2b), a recess step of forming a recess (12) in the insulation layer (11), a metal layer step of embedding a metal layer (13) in the recess (12), a planarization step of planarizing a surface of the insulation layer (11) and a surface of the metal layer (13) to be substantially flush with each other, and a metal cap layer step of forming a metal cap layer (16) containing at least zirconium element and nitrogen element on the surface of the insulation layer (11) and the surface of the metal layer (13) after the planarization step.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: February 5, 2013
    Assignee: ULVAC, Inc.
    Inventors: Masanobu Hatanaka, Kanako Tsumagari, Michio Ishikawa
  • Publication number: 20120031650
    Abstract: A method for manufacturing a semiconductor device that improves the reliability of a metal cap layer and productivity. The method includes an insulation layer step of superimposing an insulation layer(11) on a semiconductor substrate (2) including an element region (2b), a recess step of forming a recess (12) in the insulation layer (11), a metal layer step of embedding a metal layer (13) in the recess (12), a planarization step of planarizing a surface of the insulation layer (11) and a surface of the metal layer (13) to be substantially flush with each other, and a metal cap layer step of forming a metal cap layer (16) containing at least zirconium element and nitrogen element on the surface of the insulation layer (11) and the surface of the metal layer (13) after the planarization step.
    Type: Application
    Filed: October 14, 2011
    Publication date: February 9, 2012
    Applicant: ULVAC, INC.
    Inventors: Masanobu Hatanaka, Kanako Tsumagari, Michio Ishikawa
  • Patent number: 8084368
    Abstract: A barrier film made of a ZrB2 film is formed by use of a coating apparatus provided with plasma generation means including a coaxial resonant cavity and a microwave supply circuit for exciting the coaxial resonant cavity, the coaxial resonant cavity including spaced apart conductors provided around the periphery of a nonmetallic pipe for reactive gas introduction, the coaxial resonant cavity having an inner height equal to an integer multiple of one-half of the exciting wavelength, the plasma generation means being constructed such that a gas injected from one end of the nonmetallic pipe is excited into a plasma state by a microwave when the gas is in a region of the nonmetallic pipe which is not covered with the conductors and such that the gas in the plasma state is discharged from the other end of the nonmetallic pipe.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: December 27, 2011
    Assignee: Ulvac, Inc.
    Inventors: Masanobu Hatanaka, Michio Ishikawa, Kanako Tsumagari
  • Patent number: 8043963
    Abstract: A method for manufacturing a semiconductor device that improves the reliability of a metal cap layer and productivity. The method includes an insulation layer step of superimposing an insulation layer (11) on a semiconductor substrate (2) including an element region (2b), a recess step of forming a recess (12) in the insulation layer (11), a metal layer step of embedding a metal layer (13) in the recess (12), a planarization step of planarizing a surface of the insulation layer (11) and a surface of the metal layer (13) to be substantially flush with each other, and a metal cap layer step of forming a metal cap layer (16) containing at least zirconium element and nitrogen element on the surface of the insulation layer (11) and the surface of the metal layer (13) after the planarization step.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: October 25, 2011
    Assignee: Ulvac, Inc.
    Inventors: Masanobu Hatanaka, Kanako Tsumagari, Michio Ishikawa
  • Publication number: 20100068880
    Abstract: A method for manufacturing a semiconductor device that improves the reliability of a metal cap layer and productivity. The method includes an insulation layer step of superimposing an insulation layer (11) on a semiconductor substrate (2) including an element region (2b), a recess step of forming a recess (12) in the insulation layer (11), a metal layer step of embedding a metal layer (13) in the recess (12), a planarization step of planarizing a surface of the insulation layer (11) and a surface of the metal layer (13) to be substantially flush with each other, and a metal cap layer step of forming a metal cap layer (16) containing at least zirconium element and nitrogen element on the surface of the insulation layer (11) and the surface of the metal layer (13) after the planarization step.
    Type: Application
    Filed: February 25, 2008
    Publication date: March 18, 2010
    Inventors: Masanobu Hatanaka, Kanako Tsumagari, Michio Ishikawa
  • Publication number: 20100068891
    Abstract: A barrier film made of a ZrB2 film is formed by use of a coating apparatus provided with plasma generation means including a coaxial resonant cavity and a microwave supply circuit for exciting the coaxial resonant cavity, the coaxial resonant cavity including spaced apart conductors provided around the periphery of a nonmetallic pipe for reactive gas introduction, the coaxial resonant cavity having an inner height equal to an integer multiple of one-half of the exciting wavelength, the plasma generation means being constructed such that a gas injected from one end of the nonmetallic pipe is excited into a plasma state by a microwave when the gas is in a region of the nonmetallic pipe which is not covered with the conductors and such that the gas in the plasma state is discharged from the other end of the nonmetallic pipe.
    Type: Application
    Filed: November 8, 2007
    Publication date: March 18, 2010
    Inventors: Masanobu Hatanaka, Michio Ishikawa, Kanako Tsumagari