Patents by Inventor Tsukuru Suzuki

Tsukuru Suzuki 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: 8133380
    Abstract: A method and device for regenerating an ion exchanger can regenerate an ion exchanger easily and quickly, and can minimize a load upon cleaning of the regenerated ion exchanger and disposal of waste liquid. A method for regenerating a contaminated ion exchanger includes: providing a pair of a regeneration electrode and a counter electrode, a partition disposed between the electrodes, and an ion exchanger to be regenerated disposed between the counter electrode and the partition; and applying a voltage between the regeneration electrode and the counter electrode while supplying a liquid between the partition and the regeneration electrode and also supplying a liquid between the partition and the counter electrode.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: March 13, 2012
    Assignee: Ebara Corporation
    Inventors: Takayuki Saito, Tsukuru Suzuki, Yuji Makita, Kaoru Yamada, Masayuki Kumekawa, Hozumi Yasuda, Osamu Nabeya, Kazuto Hirokawa, Mitsuhiko Shirakashi, Yasushi Toma, Itsuki Kobata
  • Publication number: 20100325913
    Abstract: A substrate processing method dose not use or only use the least possible amount of an organic solvent, and can quickly and completely remove a liquid from a wet substrate surface without allowing the liquid to remain on the substrate surface. The substrate processing method for drying a substrate surface which is wet with a liquid, includes: removing the liquid from the substrate surface and sucking the liquid together with its surrounding gas into a gas/liquid suction nozzle, disposed opposite the substrate surface, while relatively moving the gas/liquid suction nozzle and the substrate parallel to each other; and blowing a dry gas from a dry gas supply nozzle, disposed opposite the substrate surface, toward that area of the substrate surface from which the liquid has been removed while relatively moving the dry gas supply nozzle and the substrate parallel to each other.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 30, 2010
    Inventors: Xinming WANG, Kazuo Yamauchi, Akira Kodera, Tsukuru Suzuki, Yasushi Toma, Takayuki Saito, Hirokuni Hiyama
  • Patent number: 7638030
    Abstract: An electrolytic processing apparatus which, while eliminating a CMP processing entirely or reducing a load on a CMP processing to the least possible extent, can process and flatten a conductive material formed in the surface of a substrate, or can remove (clean) extraneous matter adhering to the surface of a workpiece such as a substrate. The present invention includes an electrode section including a plurality of electrode members disposed in parallel, each electrode member including an electrode and an ion exchanger covering the surface of the electrode, a holder for holding a workpiece, which is capable of bringing the workpiece close to or into contact with the ion exchanger of the electrode member, and a power source to be connected to the electrode of each electrode member of the electrode section. The ion exchanger of the electrode member includes an ion exchanger having an excellent surface smoothness and an ion exchanger having a large ion exchange capacity.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: December 29, 2009
    Assignee: Ebara Corporation
    Inventors: Osamu Nabeya, Masayuki Kumekawa, Hozumi Yasuda, Itsuki Kobata, Takeshi Iizumi, Nobuyuki Takada, Koichi Fukaya, Mitsuhiko Shirakashi, Takayuki Saito, Yasushi Toma, Tsukuru Suzuki, Kaoru Yamada, Yuji Makita
  • Patent number: 7563356
    Abstract: A composite processing apparatus which can securely process a conductive material, such as a copper film, at a low surface pressure and a high rate while effectively preventing the formation of pits is disclosed. The composite processing apparatus includes: a substrate holder for holding a substrate; a processing table including a mechanical processing section for processing a surface of the substrate by a processing method involving a mechanical action; and an electrolytic processing section which is separate from the mechanical processing section. The electrolytic processing section includes a processing electrode with an ion exchanger, for processing the substrate by applying a voltage between the processing electrode and the substrate while keeping the ion exchanger (92) in contact with the substrate.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: July 21, 2009
    Assignee: Ebara Corporation
    Inventors: Osamu Nabeya, Takayuki Saito, Tsukuru Suzuki, Yasushi Toma, Ikutaro Noji
  • Patent number: 7527723
    Abstract: An electrolytic processing apparatus can increase the efficiency of the dissociation reaction of water and efficiently perform electrolytic processing, and can eliminate the need for an operation of a change of ion exchanger. The electrolytic processing apparatus includes: a processing electrode and a feeding electrode; a liquid supply section for supplying a liquid containing an ion-exchange material between the workpiece and at least one of the processing electrode and the feeding electrode; a power source for applying a voltage between the processing electrode and the feeding electrode; and a drive section for moving the workpiece and at least one of the processing electrode and the feeding electrode relative to each other; wherein electrolytic processing of the workpiece is carried out while keeping the workpiece not in contact with but close to the processing electrode at a distance of not more than 10 ?m.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: May 5, 2009
    Assignee: Ebara Corporation
    Inventors: Itsuki Kobata, Yutaka Wada, Hirokuni Hiyama, Takayuki Saito, Yasushi Toma, Tsukuru Suzuki, Akira Kodera
  • Publication number: 20090090397
    Abstract: The present invention provides a substrate processing apparatus and a substrate processing method suitable for use in an etching apparatus which etches a thin film formed on a peripheral portion of a substrate. The present invention also provides a substrate processing apparatus and a substrate processing method suitable for use in a cleaning apparatus which performs a cleaning process on a substrate which has been etched. The substrate processing apparatus for use in etching includes a substrate holder 11 for holding a substrate W substantially horizontally and rotating the substrate W, and a processing liquid supply unit 15 for supplying a processing liquid onto a peripheral portion of the substrate W which is being rotated in such a manner that the processing liquid is stationary with respect to the substrate W.
    Type: Application
    Filed: December 5, 2008
    Publication date: April 9, 2009
    Inventors: Takayuki Saito, Tsukuru Suzuki, Kaoru Yamada, Kenya Ito, Masayuki Kamezawa, Kenji Yamaguchi
  • Publication number: 20090078583
    Abstract: A composite electrolytic processing method makes it possible to remove a conductive film without leaving it in an electrically-insulated state on an underlying barrier film, thereby exposing the barrier film. The electrochemical mechanical polishing method includes: applying a voltage between a first electrode connected to one pole of a power source and a second electrode, connected to the other pole of the power source, for feeding electricity to a conductive film of a polishing object; filling an electrolytic liquid into a space between the first electrode and the conductive film of the polishing object; and pressing and rubbing the conductive film against a polishing surface of a polishing pad to polish the conductive film in such a manner that a barrier film underlying the conductive film becomes gradually exposed from the center toward the periphery of the polishing object.
    Type: Application
    Filed: January 17, 2008
    Publication date: March 26, 2009
    Inventors: Itsuki Kobata, Akira Kodera, Yasushi Toma, Tsukuru Suzuki, Takayuki Saito, Yuji Makita, Hirokuni Hiyama
  • Patent number: 7476290
    Abstract: The present invention provides a substrate processing apparatus and a substrate processing method suitable for use in an etching apparatus which etches a thin film formed on a peripheral portion of a substrate. The present invention also provides a substrate processing apparatus and a substrate processing method suitable for use in a cleaning apparatus which performs a cleaning process on a substrate which has been etched. The substrate processing apparatus for use in etching includes a substrate holder for holding a substrate substantially horizontally and rotating the substrate, and a processing liquid supply unit for supplying a processing liquid onto a peripheral portion of the substrate which is being rotated in such a manner that the processing liquid is stationary with respect to the substrate.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: January 13, 2009
    Assignee: Ebara Corporation
    Inventors: Takayuki Saito, Tsukuru Suzuki, Kaoru Yamada, Kenya Ito, Masayuki Kamezawa, Kenji Yamaguchi
  • Publication number: 20080314763
    Abstract: A method and device for regenerating an ion exchanger can regenerate an ion exchanger easily and quickly, and can minimize a load upon cleaning of the regenerated ion exchanger and disposal of waste liquid. A method for regenerating a contaminated ion exchanger includes: providing a pair of a regeneration electrode and a counter electrode, a partition disposed between the electrodes, and an ion exchanger to be regenerated disposed between the counter electrode and the partition; and applying a voltage between the regeneration electrode and the counter electrode while supplying a liquid between the partition and the regeneration electrode and also supplying a liquid between the partition and the counter electrode.
    Type: Application
    Filed: August 14, 2008
    Publication date: December 25, 2008
    Inventors: Takayuki Saito, Tsukuru Suzuki, Yuji Makita, Kaoru Yamada, Masayuki Kumekawa, Hozumi Yasuda, Osamu Nabeya, Kazuto Hirokawa, Mitsuhiro Shirakashi, Yasushi Toma, Itsuki Kobata
  • Patent number: 7427345
    Abstract: A method and device for regenerating an ion exchanger can regenerate an ion exchanger easily and quickly, and can minimize a load upon cleaning of the regenerated ion exchanger and disposal of waste liquid. A method for regenerating a contaminated ion exchanger includes: providing a pair of a regeneration electrode and a counter electrode, a partition disposed between the electrodes, and an ion exchanger to be regenerated disposed between the counter electrode and the partition; and applying a voltage between the regeneration electrode and the counter electrode while supplying a liquid between the partition and the regeneration electrode and also supplying a liquid between the partition and the counter electrode.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: September 23, 2008
    Assignee: Ebara Corporation
    Inventors: Takayuki Saito, Tsukuru Suzuki, Yuji Makita, Kaoru Yamada, Masayuki Kumekawa, Hozumi Yasuda, Osamu Nabeya, Kazuto Hirokawa, Mitsuhiko Shirakashi, Yasushi Toma, Itsuki Kobata
  • Publication number: 20080188162
    Abstract: An electrochemical mechanical polishing apparatus is for use in polishing of a conductive material (e.g., metal) on a surface of a substrate by combination of electrochemical action and mechanical action.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 7, 2008
    Inventors: Itsuki Kobata, Yasushi Toma, Akira Kodera, Tsukuru Suzuki, Yuji Makita, Takayuki Saito
  • Publication number: 20080171440
    Abstract: A pre-polishing treatment solution has a prominent corrosion inhibiting effect, and can be used in pre-polishing treatments for interconnect substrates. The pre-polishing treatment solution comprises a corrosion inhibitor dissolved in an organic solvent.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 17, 2008
    Inventors: Akira Kodera, Takayuki Saito, Yasushi Toma, Tsukuru Suzuki, Itsuki Kobata
  • Publication number: 20080121529
    Abstract: A flattening method can flatly process a surface of a metal film as an interconnect material over the entire film surface at a sufficiently high processing rate even when the metal film has initial surface irregularities. The flattening method for processing and flattening a surface of a metal film formed on a workpiece and having initial surface irregularities, including: coating only recessed portions of the initial surface irregularities of the metal film with a solid or pasty coating material; and processing the surface of the metal film by electrolytic processing using no abrasive.
    Type: Application
    Filed: December 21, 2005
    Publication date: May 29, 2008
    Inventors: Yasushi Tohma, Takayuki Saitoh, Tsukuru Suzuki, Akira Kodera, Yutaka Wada, Itsuki Kobata
  • Publication number: 20080067077
    Abstract: An electrolytic liquid is used for electrolytic polishing which can provide a processed surface having high flattening characteristics with a low voltage applied while ensuring a higher processing rate for an conductive material, and can remove an unnecessary conductive material and expose a barrier film without causing dishing, erosion, or etching at the interface between the barrier film and a metal (conductive material). The electrolytic liquid for use in electrolytic polishing of a surface conductive material of a workpiece comprises an aqueous solution containing at least one organic acid or its salt, at least one strong acid having a sulfonic acid group, a corrosion inhibitor and a water-soluble polymeric compound.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 20, 2008
    Inventors: Akira Kodera, Yasushi Toma, Tsukuru Suzuki, Takayuki Saito, Itsuki Kobata
  • Publication number: 20070187259
    Abstract: A substrate processing apparatus can perform an electrolytic processing, which is different from a common, conventional etching, to remove (clean off) a conductive material (film) formed on or adhering to a bevel portion, etc. of a substrate, or process a peripheral portion of a substrate through an electrochemical action. The substrate processing apparatus includes: an electrode section having a plurality of electrodes which are laminated with insulators being interposed, and having a holding portion which is to be opposed to a peripheral portion of a substrate; an ion exchanger disposed in the holding portion of the electrode section; a liquid supply section for supplying a liquid to the holding position of the electrode section; and a power source for applying a voltage to the electrodes of the electrode section so that the electrodes alternately have different polarities.
    Type: Application
    Filed: March 9, 2007
    Publication date: August 16, 2007
    Inventors: Itsuki Kobata, Mitsuhiko Shirakashi, Masayuki Kumekawa, Takayuki Saito, Yasushi Toma, Tsukuru Suzuki, Kaoru Yamada, Yuji Makita, Hozumi Yasuda
  • Publication number: 20070187257
    Abstract: An electrolytic processing apparatus can maintain a difference in electric resistance between a recessed portion and a raised portion in the surface of a workpiece, thereby providing a processed surface with improved flatness.
    Type: Application
    Filed: March 16, 2005
    Publication date: August 16, 2007
    Applicant: EBARA CORPORATION
    Inventors: Ikutaro Noji, Hozumi Yasuda, Takeshi Iizumi, Itsuki Kobata, Kazuto Hirokawa, Takayuki Saito, Tsukuru Suzuki, Yasushi Toma, Akira Kodera
  • Patent number: 7208076
    Abstract: A substrate processing apparatus can perform an electrolytic processing, which is different from a common, conventional etching, to remove (clean off) a conductive material (film) formed on or adhering to a bevel portion, etc. of a substrate, or process a peripheral portion of a substrate through an electrochemical action. The substrate processing apparatus includes: an electrode section having a plurality of electrodes which are laminated with insulators being interposed, and having a holding portion which is to be opposed to a peripheral portion of a substrate; an ion exchanger disposed in the holding portion of the electrode section; a liquid supply section for supplying a liquid to the holding position of the electrode section; and a power source for applying a voltage to the electrodes of the electrode section so that the electrodes alternately have different polarities.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: April 24, 2007
    Assignee: Ebara Corporation
    Inventors: Itsuki Kobata, Mitsuhiko Shirakashi, Masayuki Kumekawa, Takayuki Saito, Yasushi Toma, Tsukuru Suzuki, Kaoru Yamada, Yuji Makita, Hozumi Yasuda
  • Patent number: 7101465
    Abstract: There is provided an electrolytic processing device including: a processing electrode to be brought into contact with or close to a workpiece; a feeding electrode for supplying electricity to the workpiece; an ion exchanger disposed in at least one of spaces between the workpiece and the processing electrode, and between the workpiece and the feeding electrode; a power source for applying a voltage between the processing electrode and the feeding electrode; and a liquid supply section for supplying a liquid to the space between the workpiece and at least one of the processing electrode and the feeding electrode, in which the ion exchanger is present. A substrate processing apparatus having the electrolytic processing device is also provided.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: September 5, 2006
    Assignee: Ebara Corporation
    Inventors: Itsuki Kobata, Mitsuhiko Shirakashi, Masayuki Kumekawa, Takayuki Saito, Yasushi Toma, Tsukuru Suzuki, Kaoru Yamada, Yuji Makita, Hozumi Yasuda
  • Publication number: 20060175191
    Abstract: The present invention relates to composite processing apparatus which can securely process a conductive material, such as a copper film, at a low surface pressure and a high rate while effectively preventing the formation of pits.
    Type: Application
    Filed: March 12, 2004
    Publication date: August 10, 2006
    Inventors: Osamu Nabeya, Takayuki Saito, Tsukuru Suzuki, Yasushi Toma, Ikutaro Noji
  • Publication number: 20060144711
    Abstract: A object of this invention is to provide an electrolytic processing method and apparatus that can suppress a change in the electric conductivity of a fluid due to contaminants, such as processing products produced in electrolytic processing, so that the fluid can maintain good flattening properties.
    Type: Application
    Filed: July 18, 2003
    Publication date: July 6, 2006
    Inventors: Itsuki Kobata, Masayuki Kumekawa, Osamu Nabeya, Roberto Serikawa, Takayuki Saito, Tsukuru Suzuki, Akira Kodera, Hozumi Yasuda, Takeshi Iizumi, Mitsuhiko Shirakashi