Patents by Inventor Junji Kunisawa

Junji Kunisawa 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: 20070034526
    Abstract: An electrolytic processing apparatus can planarize uniformly over an entire surface of a substrate under a low pressure without any damages to the substrate. The electrolytic processing apparatus has a substrate holder configured to hold and rotate a substrate having a metal film formed on a surface of the substrate and an electrolytic processing unit configured to perform an electrolytic process on the substrate held by the substrate holder. The electrolytic processing unit has a rotatable processing electrode, a polishing pad attached to the rotatable processing electrode, and a pressing mechanism configured to press the polishing pad against the substrate.
    Type: Application
    Filed: August 12, 2005
    Publication date: February 15, 2007
    Inventors: Natsuki Makino, Junji Kunisawa, Keisuke Namiki, Yukio Fukunaga, Katsuyuki Musaka, Ray Fang, Emanuel Cooper, John Cotte, Hariklia Deligianni, Keith Kwietniak, Brett Baker-O'Neal, Matteo Flotta, Philippe Vereecken
  • Patent number: 7108589
    Abstract: A polishing apparatus and method has a function of polishing a surface of a film formed on a substrate to a flat mirror finish and a function of polishing unnecessary metal film such as copper film deposited on an outer peripheral portion of the substrate to remove such unnecessary metal film. The polishing apparatus comprises a surface polishing mechanism comprising a polishing table having a polishing surface and a top ring for holding the substrate and pressing the substrate against the polishing surface of the polishing table to thereby polish a surface of the substrate, and an outer periphery polishing mechanism for polishing an outer peripheral portion of the substrate.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: September 19, 2006
    Assignees: Ebara Corporation, Kabushiki Kaisha Toshiba
    Inventors: Norio Kimura, Mitsuhiko Shirakashi, Katsuya Okumura, You Ishii, Junji Kunisawa, Hiroyuki Yano
  • Patent number: 7055535
    Abstract: A holding unit holds a substrate to enable a surface of the substrate to be processed. The unit has a vacuum suction member that comes into contact with a peripheral portion of the surface of the substrate and sucks the substrate. A processing apparatus holds the wafer stably and allows an edge, a bevel portion and/or a back surface of the wafer to be processed.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: June 6, 2006
    Assignee: Ebara Corporation
    Inventors: Junji Kunisawa, Norio Kimura, Kenya Ito, Akira Fukunaga, Yuuki Inoue, Hiroshi Tomita, Soichi Nadahara, Motoyuki Sato
  • Publication number: 20060086616
    Abstract: A plating apparatus can securely carry out a flattening plating of a substrate to form a plated film having a flat surface without using a costly mechanism, and without applying an extra plating to the substrate. The plating apparatus includes a substrate holder; a cathode section having a seal member for watertightly sealing a peripheral portion of the substrate, and a cathode electrode for supplying an electric current to the substrate; an anode disposed in a position facing the surface of the substrate; a porous member disposed between the anode and the surface of the substrate; a constant-voltage control section for controlling a voltage applied between the cathode electrode and the anode at a constant value; and a current monitor section for monitoring an electric current flowing between the cathode electrode and the anode, and feeding back a detection signal to the constant-voltage control section.
    Type: Application
    Filed: October 7, 2005
    Publication date: April 27, 2006
    Inventors: Keiichi Kurashina, Mizuki Nagai, Satoru Yamamoto, Hiroyuki Kanda, Koji Mishima, Shinya Morisawa, Junji Kunisawa, Kunihito Ide, Hidenao Suzuki, Emanuel Cooper, Philippe Vereecken, Brett Baker-O' Neal, Hariklia Deligianni
  • Publication number: 20060027452
    Abstract: A substrate processing apparatus fills a metal such as copper or the like in fine interconnection patterns or trenches defined in a semiconductor substrate. The substrate processing apparatus has a loading/unloading unit for placing a substrate cassette to allow a substrate to be loaded and unloaded, a substrate treating unit for treating a substrate, and a transfer robot for transferring a substrate between the loading/unloading unit and the substrate treating unit. The loading/unloading unit, the substrate treating unit, and the transfer robot are installed in a single facility. The loading/unloading unit has a rotary table which is horizontally rotatable for positioning the substrate cassette in a position to detect the substrate cassette placed in the loading/unloading unit and to remove the substrate from the substrate cassette with the transfer robot.
    Type: Application
    Filed: September 27, 2005
    Publication date: February 9, 2006
    Inventors: Koji Mishima, Junji Kunisawa, Natsuki Makino, Norio Kimura, Hiroaki Inoue, Kenji Nakamura, Moriji Matsumoto, Takahiro Nanjo, Mitsuko Odagaki
  • Publication number: 20050260933
    Abstract: A polishing apparatus and method has a function of polishing a surface of a film formed on a substrate to a flat mirror finish and a function of polishing unnecessary metal film such as copper film deposited on an outer peripheral portion of the substrate to remove such unnecessary metal film. The polishing apparatus comprises a surface polishing mechanism comprising a polishing table having a polishing surface and a top ring for holding the substrate and pressing the substrate against the polishing surface of the polishing table to thereby polish a surface of the substrate, and an outer periphery polishing mechanism for polishing an outer peripheral portion of the substrate.
    Type: Application
    Filed: July 25, 2005
    Publication date: November 24, 2005
    Inventors: Norio Kimura, Mitsuhiko Shirakashi, Katsuya Okumura, You Ishii, Junji Kunisawa, Hiroyuki Yano
  • Patent number: 6935932
    Abstract: A polishing apparatus and method has a function of polishing a surface of a film formed on a substrate to a flat mirror finish and a function of polishing unnecessary metal film such as copper film deposited on an outer peripheral portion of the substrate to remove such unnecessary metal film. The polishing apparatus comprises a surface polishing mechanism comprising a polishing table having a polishing surface and a top ring for holding the substrate and pressing the substrate against the polishing surface of the polishing table to thereby polish a surface of the substrate, and an outer periphery polishing mechanism for polishing an outer peripheral portion of the substrate.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: August 30, 2005
    Assignees: Ebara Corporation, Kabushiki Kaisha Toshiba
    Inventors: Norio Kimura, Mitsuhiko Shirakashi, Katsuya Okumura, You Ishii, Junji Kunisawa, Hiroyuki Yano
  • Publication number: 20050155865
    Abstract: There is provided an electrolytic processing apparatus and method which can produce products having various specifications with enhanced productivity, thus reducing the production cost, and which can respond flexibly to the movement toward finer interconnects in semiconductor devices.
    Type: Application
    Filed: May 14, 2004
    Publication date: July 21, 2005
    Inventors: Koji Mishima, Keisuke Namiki, Masao Hodai, Junji Kunisawa, Natsuki Makino, Yukio Fukunaga
  • Publication number: 20050074559
    Abstract: The present invention relates to an electroless plating apparatus which can reduce an amount of a plating liquid to be used, maintain a stable plating process, be downsized, reduce an apparatus cost, form a film having a uniform thickness over an entire surface, and prevent a plating liquid from being deteriorated due to a temperature rise. The present invention comprises: a holding device for holding a substrate with a surface, to be plated, facing upwardly; a plating liquid holding mechanism for sealing a periphery of the surface, to be plated, of the substrate held by the holding device; an electroless plating treatment liquid supply device for supplying an electroless plating liquid to the surface, to be plated, of the substrate sealed by the plating liquid holding mechanism to allow supplied electroless plating liquid to be held on the substrate; and a heating apparatus provided below the substrate.
    Type: Application
    Filed: November 24, 2004
    Publication date: April 7, 2005
    Inventors: Hiroaki Inoue, Koji Mishima, Tsutomu Karimata, Kenji Nakamura, Moriji Matsumoto, Junji Kunisawa
  • Patent number: 6858084
    Abstract: The present invention relates to an electroless plating apparatus which can reduce an amount of a plating liquid to be used, maintain a stable plating process, be downsized, reduce an apparatus cost, form a film having a uniform thickness over an entire surface, and prevent a plating liquid from being deteriorated due to a temperature rise. The present invention comprises: a holding device for holding a substrate with a surface, to be plated, facing upwardly; a plating liquid holding mechanism for sealing a periphery of the surface, to be plated, of the substrate held by the holding device; an electroless plating treatment liquid supply device for supplying an electroless plating liquid to the surface, to be plated, of the substrate sealed by the plating liquid holding mechanism to allow supplied electroless plating liquid to be held on the substrate; and a heating apparatus provided below the substrate.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: February 22, 2005
    Assignee: Ebara Corporation
    Inventors: Hiroaki Inoue, Koji Mishima, Tsutomu Karimata, Kenji Nakamura, Moriji Matsumoto, Junji Kunisawa
  • Publication number: 20050023149
    Abstract: The present invention provides a plating apparatus which uses an insoluble anode and which can perform plating of a substrate stably while preventing oxygen gas, generated due to the use of the insoluble anode, from causing defects in the substrate.
    Type: Application
    Filed: June 4, 2004
    Publication date: February 3, 2005
    Inventors: Tsutomu Nakada, Junji Kunisawa, Hiroyuki Kanda, Mizuki Nagai, Satoru Yamamoto, Koji Mishima, Shinya Morisawa, Seiji Katsuoka, Natsuki Makino, Yukio Fukunaga
  • Publication number: 20040195106
    Abstract: The present invention relates to a plating method and a plating apparatus which can attain embedding of copper into fine interconnection patterns with use of a plating liquid having high throwing power and leveling properties, and which can make film thickness of a plated film substantially equal between an interconnection region and a non-interconnection region. A plating method comprises filling a plating liquid containing metal ions and an additive into a plating space formed between a substrate and an anode disposed closely to the substrate so as to face the substrate, and changing concentration of the additive in the plating liquid filled into the plating space during a plating process.
    Type: Application
    Filed: April 20, 2004
    Publication date: October 7, 2004
    Inventors: Koji Mishima, Hiroaki Inoue, Natsuki Makino, Junji Kunisawa, Kenji Nakamura, Tetsuo Matsuda, Hisashi Kaneko, Toshiyuki Morita
  • Publication number: 20040166783
    Abstract: A polishing apparatus and method has a function of polishing a surface of a film formed on a substrate to a flat mirror finish and a function of polishing unnecessary metal film such as copper film deposited on an outer peripheral portion of the substrate to remove such unnecessary metal film. The polishing apparatus comprises a surface polishing mechanism comprising a polishing table having a polishing surface and a top ring for holding the substrate and pressing the substrate against the polishing surface of the polishing table to thereby polish a surface of the substrate, and an outer periphery polishing mechanism for polishing an outer peripheral portion of the substrate.
    Type: Application
    Filed: February 25, 2004
    Publication date: August 26, 2004
    Inventors: Norio Kimura, Mitsuhiko Shirakashi, Katsuya Okumura, You Ishii, Junji Kunisawa, Hiroyuki Yano
  • Patent number: 6767437
    Abstract: In an electroplating apparatus, an electrolytic agent is filled into the portion between an anode and a dummy cathode which is opposite substantially face to face and parallel to the anode, and an electric current is supplied to this portion, thereby suppressing changes in properties of a black film during the period in which plating to a substrate to be processed is stopped. In particular, by applying an electric current to the anode immediately before plating to the substrate is resumed, the film formation characteristics of plating to the substrate can be maximally stabilized. This can reduce the consumption power and dissolution of the anode. This apparatus is particularly effective in copper plating in which the formation of a black film is significant.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: July 27, 2004
    Assignees: Kabushiki Kaisha Toshiba, Ebara Corporation
    Inventors: Tetsuo Matsuda, Hisashi Kaneko, Koji Mishima, Natsuki Makino, Junji Kunisawa
  • Publication number: 20040134789
    Abstract: A substrate processing apparatus fills a metal such as copper or the like in fine interconnection patterns or trenches defined in a semiconductor substrate. The substrate processing apparatus has a loading/unloading unit for placing a substrate cassette to allow a substrate to be loaded and unloaded, a substrate treating unit for treating a substrate, and a transfer robot for transferring a substrate between the loading/unloading unit and the substrate treating unit. The loading/unloading unit, the substrate treating unit, and the transfer robot are installed in a single facility. The loading/unloading unit has a rotary table which is horizontally rotatable for positioning the substrate cassette in a position to detect the substrate cassette placed in the loading/unloading unit and to remove the substrate from the substrate cassette with the transfer robot.
    Type: Application
    Filed: December 22, 2003
    Publication date: July 15, 2004
    Inventors: Koji Mishima, Junji Kunisawa, Natsuki Makino, Norio Kimura, Hiroaki Inoue, Kenji Nakamura, Moriji Matsumoto, Takahiro Nanjo, Mitsuko Odagaki
  • Publication number: 20040129576
    Abstract: There is provided an electrolytic processing apparatus and method that can improve the flatness of a plated film on a substrate even when fine grooves and large grooves are co-present in the surface of the substrate, enabling a later CMP processing to be carried out in a short time while preventing dishing during the CMP processing.
    Type: Application
    Filed: December 1, 2003
    Publication date: July 8, 2004
    Inventors: Natsuki Makino, Junji Kunisawa
  • Patent number: 6746589
    Abstract: The present invention relates to a plating method and a plating apparatus which can attain embedding of copper into fine interconnection patterns with use of a plating liquid having high throwing power and leveling properties, and which can make film thickness of a plated film substantially equal between an interconnection region and a non-interconnection region. A plating method comprises filling a plating liquid containing metal ions and an additive into a plating space formed between a substrate and an anode disposed closely to the substrate so as to face the substrate, and changing concentration of the additive in the plating liquid filled into the plating space during a plating process.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: June 8, 2004
    Assignees: Ebara Corporation, Kabushiki Kaisha Toshiba
    Inventors: Koji Mishima, Hiroaki Inoue, Natsuki Makino, Junji Kunisawa, Kenji Nakamura, Tetsuo Matsuda, Hisashi Kaneko, Toshiyuki Morita
  • Patent number: 6722964
    Abstract: A polishing apparatus and method has a function of polishing a surface of a film formed on a substrate to a flat mirror finish and a function of polishing unnecessary metal film such as copper film deposited on an outer peripheral portion of the substrate to remove such unnecessary metal film. The polishing apparatus comprises a surface polishing mechanism comprising a polishing table having a polishing surface and a top ring for holding the substrate and pressing the substrate against the polishing surface of the polishing table to thereby polish a surface of the substrate, and an outer periphery polishing mechanism for polishing an outer peripheral portion of the substrate.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: April 20, 2004
    Assignees: Ebara Corporation, Kabushiki Kaisha Toshiba
    Inventors: Norio Kimura, Mitsuhiko Shirakashi, Katsuya Okumura, You Ishii, Junji Kunisawa, Hiroyuki Yano
  • Publication number: 20040069646
    Abstract: A plating method and apparatus for a substrate fills a metal, e.g., copper, into a fine interconnection pattern formed in a semiconductor substrate. The apparatus has a substrate holding portion 36 horizontally holding and rotating a substrate with its surface to be plated facing upward. A seal material 90 contacts a peripheral edge portion of the surface, sealing the in a watertight manner. A cathode electrode 88 passes an electric current upon contact with the substrate. A cathode portion 38 rotates integrally with the substrate holding portion 36. An electrode arm portion 30 is above the cathode portion 38 and movable horizontally and vertically and has an anode 98 face-down. Plating liquid is poured into a space between the surface to be plated and the anode 98 brought close to the surface to be plated. Thus, plating treatment and treatments incidental thereto can be performed by a single unit.
    Type: Application
    Filed: August 1, 2003
    Publication date: April 15, 2004
    Inventors: Junji Kunisawa, Mitsuko Odagaki, Natsuki Makino, Koji Mishima, Kenji Nakamura, Hiroaki Inoue, Norio Kimura, Tetsuo Matsuda, Hisashi Kaneko, Nobuo Hayasaka, Katsuya Okumura, Manabu Tsujimura, Toshiyuki Morita
  • Patent number: 6689257
    Abstract: A substrate processing apparatus fills a metal such as copper or the like in fine interconnection patterns or trenches defined in a semiconductor substrate. The substrate processing apparatus has a loading/unloading unit for placing a substrate cassette to allow a substrate to be loaded and unloaded, a substrate treating unit for treating a substrate, and a transfer robot for transferring a substrate between the loading/unloading unit and the substrate treating unit. The loading/unloading unit, the substrate treating unit, and the transfer robot are installed in a single facility. The loading/unloading unit has a rotary table which is horizontally rotatable for positioning the substrate cassette in a position to detect the substrate cassette placed in the loading/unloading unit and to remove the substrate from the substrate cassette with the transfer robot.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: February 10, 2004
    Assignee: Ebara Corporation
    Inventors: Koji Mishima, Junji Kunisawa, Natsuki Makino, Norio Kimura, Hiroaki Inoue, Kenji Nakamura, Moriji Matsumoto, Takahiro Nanjo, Mitsuko Odagaki