Patents by Inventor Michio Ishikawa

Michio Ishikawa 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: 20120264310
    Abstract: A method for the formation of an Ni film is herein disclosed, which comprises the steps of maintaining the temperature of an Si substrate at a desired level in a vacuum chamber; introducing, into the vacuum chamber, a nickel alkylamidinate (in this organometal compound, the alkyl group is a member selected from the group consisting of a methyl group, an ethyl group, a butyl group and a propyl group), H2 gas and NH3 gas; and then forming an Ni film according to the CVD technique, wherein the film-forming temperature is set at a level between higher than 280° C. and not higher than 350° C.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 18, 2012
    Applicant: ULVAC, INC.
    Inventors: Toshimitsu Uehigashi, Yasushi Higuchi, Michio Ishikawa, Harunori Ushikawa, Naoki Hanada
  • Patent number: 8252113
    Abstract: The object of this invention is to provide a method for producing a component for vacuum apparatus and a resin coating forming apparatus capable of easily forming a resin coating on an internal flow path complex in shape. The resin coating forming apparatus (21) comprises a monomer vapor supplying unit (23), a vacuum pumping line (24) for transporting monomer vapor, a connection portion (24c) connectable with the internal flow path of a component (22A) provided on part of the vacuum pumping line (24), and a temperature adjusting unit (31) for depositing the monomer vapor onto the internal flow path of the component (22A) connected with the connection portion (24c) to form a resin coating. The above arrangement permits the formation of a uniform, high-coverage resin coating on the internal flow path of the component (22A) by merely exposing the internal flow path to monomer vapor.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: August 28, 2012
    Assignee: ULVAC, Inc.
    Inventors: Masanobu Hatanaka, Yoshikazu Takahashi, Michio Ishikawa, Fumio Nakamura
  • Patent number: 8183153
    Abstract: Disclosed is a method for manufacturing a semiconductor device which is decreased in resistance of a copper wiring containing a ruthenium-containing film and a copper-containing film, thereby having improved reliability. Also disclosed is an apparatus for manufacturing a semiconductor device. Specifically, an Ru film is formed on a substrate having a recessed portion by a CVD method using a raw material containing an organic ruthenium complex represented by the general formula and a reducing gas (step S12). Then, a Cu film is formed on the Ru film by a CVD method using a raw material containing an organic copper complex represented by the general formula and a reducing gas, thereby forming a copper wiring containing the Ru film and the Cu film in the recessed portion (step S14).
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: May 22, 2012
    Assignee: Ulvac, Inc.
    Inventors: Hideaki Zama, Michio Ishikawa, Takumi Kadota, Chihiro Hasegawa
  • Patent number: 8125069
    Abstract: A method for manufacturing a semiconductor device comprises dry-etching a thin film using a resist mask carrying patterns in which at least one of the width of each pattern and the space between neighboring two patterns ranges from 32 to 130 nm using a halogenated carbon-containing compound gas with the halogen being at least two members selected from the group consisting of F, I and Br. The ratio of at least one of I and Br is not more than 26% of the total amount of the halogen atoms as expressed in terms of the atomic compositional ratio to transfer the patterns onto the thin film. Such etching of a thin film avoids causing damage to the resist mask used. The resulting thin film carrying the transferred patterns is used as a mask for subjecting the underlying material to dry-etching.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: February 28, 2012
    Assignee: Philtech Inc.
    Inventors: Toshio Hayashi, Yasuhiro Morikawa, Michio Ishikawa, Yuji Furumura, Naomi Mura
  • 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: 20100317189
    Abstract: Disclosed is a method for manufacturing a semiconductor device which is decreased in resistance of a copper wiring containing a ruthenium-containing film and a copper-containing film, thereby having improved reliability. Also disclosed is an apparatus for manufacturing a semiconductor device. Specifically, an Ru film is formed on a substrate having a recessed portion by a CVD method using a raw material containing an organic ruthenium complex represented by the general formula and a reducing gas (step S12). Then, a Cu film is formed on the Ru film by a CVD method using a raw material containing an organic copper complex represented by the general formula and a reducing gas, thereby forming a copper wiring containing the Ru film and the Cu film in the recessed portion (step S14).
    Type: Application
    Filed: September 3, 2008
    Publication date: December 16, 2010
    Applicant: ULVAC, INC.
    Inventors: Hideaki Zama, Michio Ishikawa, Takumi Kadota, Chihiro Hasegawa
  • Patent number: 7828900
    Abstract: A vacuum film-forming apparatus comprising substrate stages; vacuum chamber-forming containers opposed to the stages; a means for moving the substrate between the stages; and gas-introduction means connected to every containers, wherein one of the stage and the container is ascended or descended towards the other to bring the upper face of the stage and the opening of the container into contact with one another so that vacuum chambers can be formed and that a raw gas and/or a reactant gas can be introduced into each space of the chamber through each gas-introduction means to carry out either the adsorption or reaction step for allowing the raw gas to react with the reactant gas. The apparatus permits the independent establishment of process conditions for the adsorption and reaction processes and the better acceleration of the reaction between raw and reactant gases to give a film having excellent quality and the apparatus can be manufactured at a low cost.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: November 9, 2010
    Assignee: ULVAC, Inc.
    Inventors: Masanobu Hatanaka, Michio Ishikawa, Se-Ju Lim, Fumio Nakamura
  • Publication number: 20100270654
    Abstract: A method for manufacturing a semiconductor device comprises dry-etching a thin film using a resist mask carrying patterns in which at least one of the width of each pattern and the space between neighboring two patterns ranges from 32 to 130 nm using a halogenated carbon-containing compound gas with the halogen being at least two members selected from the group consisting of F, I and Br. The ratio of at least one of I and Br is not more than 26% of the total amount of the halogen atoms as expressed in terms of the atomic compositional ratio to transfer the patterns onto the thin film. Such etching of a thin film avoids causing damage to the resist mask used. The resulting thin film carrying the transferred patterns is used as a mask for subjecting the underlying material to dry-etching.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 28, 2010
    Inventors: Toshio HAYASHI, Yasuhiro MORIKAWA, Michio ISHIKAWA, Yuji FURUMURA, Naomi MURA
  • Patent number: 7763115
    Abstract: A vacuum film-forming apparatus comprising substrate stages; vacuum chamber-forming containers opposed to the stages; a means for moving the substrate between the stages; and gas-introduction means connected to every containers, wherein one of the stage and the container is ascended or descended towards the other to bring the upper face of the stage and the opening of the container into contact with one another so that vacuum chambers can be formed and that a raw gas and/or a reactant gas can be introduced into each space of the chamber through each gas-introduction means to carry out either the adsorption or reaction step for allowing the raw gas to react with the reactant gas. The apparatus permits the independent establishment of process conditions for the adsorption and reaction processes and the better acceleration of the reaction between raw and reactant gases to give a film having excellent quality and the apparatus can be manufactured at a low cost.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: July 27, 2010
    Assignee: ULVAC, Inc.
    Inventors: Masanobu Hatanaka, Michio Ishikawa, Se-Ju Lim, Fumio Nakamura
  • Publication number: 20100180819
    Abstract: In a film-forming apparatus in which two or more gases are used, a uniform film is formed. In a film-forming apparatus provided with a film-forming chamber and a shower head, the shower head is provided with a material gas diffusion chamber and a reactive gas diffusion chamber. A gas passage which communicates the material gas diffusion chamber and a material gas introduction pipe is constituted into multi-stages of one stage or more. Each stage has a gas passage represented by 2n-1 (where n is the number of stages). The first-stage gas passage has connected to the center thereof the material gas introduction pipe. Each of second-stage and subsequent-stage gas passages has connected to the center thereof connection holes which are provided on both ends of the previous-stage gas passages so as to be in communication with the previous-stage gas passages. Each of the final-stage gas passages is connected to the material gas diffusion chamber by connection holes formed on both ends of each of the gas passages.
    Type: Application
    Filed: April 15, 2008
    Publication date: July 22, 2010
    Applicant: ULVAC, INC.
    Inventors: Masanobu Hatanaka, Osamu Irino, Michio Ishikawa
  • Publication number: 20100089533
    Abstract: Disclosed is an ashing apparatus wherein decrease in processing efficiency is suppressed. Specifically, a shower plate is arranged to face a substrate stage on which a substrate is placed, and diffuses oxygen radicals supplied into a chamber. A metal blocking plate is arranged between the shower plate and the substrate stage and has a through hole through which oxygen radicals pass. In addition, the metal blocking plate has a first layer, which is made of a metal same as the one exposed in the substrate, on the surface facing the substrate.
    Type: Application
    Filed: December 26, 2007
    Publication date: April 15, 2010
    Applicant: ULVAC, INC.
    Inventors: Masahisa Ueda, Takashi Kurimoto, Michio Ishikawa, Koukou Suu, Toshiya Yogo
  • 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
  • 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: 20090314636
    Abstract: A capacitive-coupled magnetic neutral line plasma sputtering system having such a structure that the utilization efficiency of a target can be increased drastically by sputtering the target uniformly, distribution of magnetic lines of force is vertical and uniform in the vicinity of the substrate, and charge up does not take place. The capacitive-coupled magnetic neutral line plasma sputtering system comprises a vacuum chamber (1), a target (2) placed in the vacuum chamber (1), a magnetic field generation means forming annular magnetic neutral line of zero magnetic field in the vacuum chamber (1), and an electric field generation means for generating plasma along the magnetic neutral line by applying a high frequency bias to the target (2), wherein the gradient of magnetic field is set at 2 gauss/cm or above in the vicinity of zero magnetic field of the magnetic neutral line, and a film is deposited on the substrate placed oppositely to the target by sputtering the target with plasma.
    Type: Application
    Filed: July 13, 2007
    Publication date: December 24, 2009
    Inventors: Michio Ishikawa, Toshio Hayashi
  • Publication number: 20090238968
    Abstract: The object of this invention is to provide a method for producing a component for vacuum apparatus and a resin coating forming apparatus capable of easily forming a resin coating on an internal flow path complex in shape. The resin coating forming apparatus (21) comprises a monomer vapor supplying unit (23), a vacuum pumping line (24) for transporting monomer vapor, a connection portion (24c) connectable with the internal flow path of a component (22A) provided on part of the vacuum pumping line (24), and a temperature adjusting unit (31) for depositing the monomer vapor onto the internal flow path of the component (22A) connected with the connection portion (24c) to form a resin coating. The above arrangement permits the formation of a uniform, high-coverage resin coating on the internal flow path of the component (22A) by merely exposing the internal flow path to monomer vapor.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 24, 2009
    Inventors: Masanobu Hatanaka, Yoshikazu Takahashi, Michio Ishikawa, Fumio Nakamura
  • Publication number: 20090120787
    Abstract: A barrier film of a semiconductor device is formed. The present invention forms a middle layer having copper as a main component and including a predetermined quantity of diffusible metal with the addition of a reaction gas, by sputtering an alloy target having copper as a main component with the addition of a diffusible metal, while supplying a reaction gas including oxygen or nitrogen. Since contents of the diffusible metal are accurately controlled when heating the middle layer, the barrier film is certainly formed. Additionally, the reaction gas is added to the middle layer so that the reactivity of the diffusible metal becomes high; and accordingly, it is possible to form the barrier film at a heating temperature lower than the conventional art.
    Type: Application
    Filed: January 12, 2009
    Publication date: May 14, 2009
    Applicant: ULVAC, INC.
    Inventors: Yoshihiro OKAMURA, Satoru Toyoda, Michio Ishikawa
  • Publication number: 20090102025
    Abstract: A method for manufacturing a semiconductor device comprises dry-etching a thin film using a resist mask carrying patterns in which at least one of the width of each pattern and the space between neighboring two patterns ranges from 32 to 130 nm using a halogenated carbon-containing compound gas with the halogen being at least two members selected from the group consisting of F, I and Br. The ratio of at least one of I and Br is not more than 26% of the total amount of the halogen atoms as expressed in terms of the atomic compositional ratio to transfer the patterns onto the thin film. Such etching of a thin film avoids causing damage to the resist mask used. The resulting thin film carrying the transferred patterns is used as a mask for subjecting the underlying material to dry-etching.
    Type: Application
    Filed: April 7, 2006
    Publication date: April 23, 2009
    Inventors: Toshio Hayashi, Yasuhiro Morikawa, Michio Ishikawa, Yuji Furumura, Naomi Mura
  • Publication number: 20080202423
    Abstract: A vacuum film-forming apparatus comprising substrate stages; vacuum chamber-forming containers opposed to the stages; a means for moving the substrate between the stages; and gas-introduction means connected to every containers, wherein one of the stage and the container is ascended or descended towards the other to bring the upper face of the stage and the opening of the container into contact with one another so that vacuum chambers can be formed and that a raw gas and/or a reactant gas can be introduced into each space of the chamber through each gas-introduction means to carry out either the adsorption or reaction step for allowing the raw gas to react with the reactant gas. The apparatus permits the independent establishment of process conditions for the adsorption and reaction processes and the better acceleration of the reaction between raw and reactant gases to give a film having excellent quality and the apparatus can be manufactured at a low cost.
    Type: Application
    Filed: April 29, 2008
    Publication date: August 28, 2008
    Inventors: Masanobu HATANAKA, Michio Ishikawa, Se-Ju Lim, Fumio Nakamura