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).
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Publication number: 20120264310Abstract: 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: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Applicant: ULVAC, INC.Inventors: Toshimitsu Uehigashi, Yasushi Higuchi, Michio Ishikawa, Harunori Ushikawa, Naoki Hanada
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Patent number: 8252113Abstract: 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: GrantFiled: March 23, 2006Date of Patent: August 28, 2012Assignee: ULVAC, Inc.Inventors: Masanobu Hatanaka, Yoshikazu Takahashi, Michio Ishikawa, Fumio Nakamura
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Patent number: 8183153Abstract: 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: GrantFiled: September 3, 2008Date of Patent: May 22, 2012Assignee: Ulvac, Inc.Inventors: Hideaki Zama, Michio Ishikawa, Takumi Kadota, Chihiro Hasegawa
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Patent number: 8125069Abstract: 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: GrantFiled: July 6, 2010Date of Patent: February 28, 2012Assignee: Philtech Inc.Inventors: Toshio Hayashi, Yasuhiro Morikawa, Michio Ishikawa, Yuji Furumura, Naomi Mura
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Publication number: 20120031650Abstract: 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: ApplicationFiled: October 14, 2011Publication date: February 9, 2012Applicant: ULVAC, INC.Inventors: Masanobu Hatanaka, Kanako Tsumagari, Michio Ishikawa
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Patent number: 8084368Abstract: 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: GrantFiled: November 8, 2007Date of Patent: December 27, 2011Assignee: Ulvac, Inc.Inventors: Masanobu Hatanaka, Michio Ishikawa, Kanako Tsumagari
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Patent number: 8043963Abstract: 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: GrantFiled: February 25, 2008Date of Patent: October 25, 2011Assignee: Ulvac, Inc.Inventors: Masanobu Hatanaka, Kanako Tsumagari, Michio Ishikawa
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Publication number: 20100317189Abstract: 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: ApplicationFiled: September 3, 2008Publication date: December 16, 2010Applicant: ULVAC, INC.Inventors: Hideaki Zama, Michio Ishikawa, Takumi Kadota, Chihiro Hasegawa
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Patent number: 7828900Abstract: 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: GrantFiled: April 29, 2008Date of Patent: November 9, 2010Assignee: ULVAC, Inc.Inventors: Masanobu Hatanaka, Michio Ishikawa, Se-Ju Lim, Fumio Nakamura
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Publication number: 20100270654Abstract: 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: ApplicationFiled: July 6, 2010Publication date: October 28, 2010Inventors: Toshio HAYASHI, Yasuhiro MORIKAWA, Michio ISHIKAWA, Yuji FURUMURA, Naomi MURA
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Patent number: 7763115Abstract: 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: GrantFiled: May 20, 2005Date of Patent: July 27, 2010Assignee: ULVAC, Inc.Inventors: Masanobu Hatanaka, Michio Ishikawa, Se-Ju Lim, Fumio Nakamura
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Publication number: 20100180819Abstract: 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: ApplicationFiled: April 15, 2008Publication date: July 22, 2010Applicant: ULVAC, INC.Inventors: Masanobu Hatanaka, Osamu Irino, Michio Ishikawa
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Publication number: 20100089533Abstract: 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: ApplicationFiled: December 26, 2007Publication date: April 15, 2010Applicant: ULVAC, INC.Inventors: Masahisa Ueda, Takashi Kurimoto, Michio Ishikawa, Koukou Suu, Toshiya Yogo
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Publication number: 20100068891Abstract: 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: ApplicationFiled: November 8, 2007Publication date: March 18, 2010Inventors: Masanobu Hatanaka, Michio Ishikawa, Kanako Tsumagari
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Publication number: 20100068880Abstract: 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: ApplicationFiled: February 25, 2008Publication date: March 18, 2010Inventors: Masanobu Hatanaka, Kanako Tsumagari, Michio Ishikawa
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Publication number: 20090314636Abstract: 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: ApplicationFiled: July 13, 2007Publication date: December 24, 2009Inventors: Michio Ishikawa, Toshio Hayashi
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Publication number: 20090238968Abstract: 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: ApplicationFiled: March 23, 2006Publication date: September 24, 2009Inventors: Masanobu Hatanaka, Yoshikazu Takahashi, Michio Ishikawa, Fumio Nakamura
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Publication number: 20090120787Abstract: 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: ApplicationFiled: January 12, 2009Publication date: May 14, 2009Applicant: ULVAC, INC.Inventors: Yoshihiro OKAMURA, Satoru Toyoda, Michio Ishikawa
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Publication number: 20090102025Abstract: 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: ApplicationFiled: April 7, 2006Publication date: April 23, 2009Inventors: Toshio Hayashi, Yasuhiro Morikawa, Michio Ishikawa, Yuji Furumura, Naomi Mura
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Publication number: 20080202423Abstract: 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: ApplicationFiled: April 29, 2008Publication date: August 28, 2008Inventors: Masanobu HATANAKA, Michio Ishikawa, Se-Ju Lim, Fumio Nakamura