Patents by Inventor Satoshi Wakabayashi

Satoshi Wakabayashi 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: 7906442
    Abstract: A gas delivery apparatus comprises: a chamber surrounding a substrate to be processed; a showerhead disposed within the chamber; and gas supply means supplying a gas comprising a mixture of NH3 and H2 to the chamber, in which a coating layer deposited on the interior of the chamber and the showerhead contain nickel (Ni). When the apparatus is utilized to practice a method comprising exposing an object W to a gas comprising a mixture consisting of NH3 and H2, the H2/NH3 gas flow rate ratio and the temperature are controlled so that the reaction of nickel contained in the coating layer deposited on the interior of the chamber and the showerhead is suppressed.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: March 15, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Kensaku Narushima, Satoshi Wakabayashi
  • Patent number: 7850817
    Abstract: A polishing apparatus has a plurality of polishing units. Moving mechanisms for moving top rings between polishing positions on polishing surfaces and wafer receiving/delivering positions are provided in each of the polishing units. Linear transporters are provided for transferring a wafer between a plurality of transferring positions including the wafer receiving/delivering positions. Pushers for receiving and delivering the wafer between the linear transporters and the top rings are provided at the transferring positions as the wafer receiving/delivering positions.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: December 14, 2010
    Assignee: Ebara Corporation
    Inventors: Satoshi Wakabayashi, Tetsuji Togawa, Ryuichi Kosuge, Koji Ato, Hiroshi Sotozaki
  • Publication number: 20100304561
    Abstract: A barrier layer including a titanium film is formed at a low temperature, and a TiSix film is self-conformably formed at the interface between the titanium film and the base. In forming the TiSix film 507, the following steps are repeated without introducing argon gas: a first step of introducing a titanium compound gas into the processing chamber to adsorb the titanium compound gas onto the silicon surface of a silicon substrate 502; a second step of stopping introduction of the titanium compound gas into the processing chamber and removing the titanium compound gas remaining in the processing chamber; and a third step of generating plasma in the processing chamber while introducing hydrogen gas into the processing chamber to reduce the titanium compound gas adsorbed on the silicon surface and react it with the silicon in the silicon surface to form the TiSix film 507.
    Type: Application
    Filed: August 7, 2007
    Publication date: December 2, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kensaku Narushima, Fumitaka Amano, Satoshi Wakabayashi
  • Publication number: 20100240216
    Abstract: A film formation method to form a predetermined thin film on a target substrate includes first and second steps alternately performed each at least once. The first step is arranged to generate first plasma within a process chamber that accommodates the substrate while supplying a compound gas containing a component of the thin film and a reducing gas into the process chamber. The second step is arranged to generate second plasma within the process chamber while supplying the reducing gas into the process chamber, subsequently to the first step.
    Type: Application
    Filed: May 28, 2010
    Publication date: September 23, 2010
    Inventors: Kunihiro TADA, Hiroaki Yokoi, Satoshi Wakabayashi, Kensaku Narushima
  • Publication number: 20100227062
    Abstract: A Ti film is formed on a surface of a wafer W placed inside a chamber 31, while injecting a process gas containing TiCl4 gas into the chamber 31 from a showerhead 40 made of an Ni-containing material at least at a surface. The method includes performing formation of a Ti film on a predetermined number of wafers W while setting the showerhead 40 at a temperature of 300° C. or more and less than 450° C., and setting TiCl4 gas at a flow rate of 1 to 12 mL/min (sccm) or setting TiCl4 gas at a partial pressure of 0.1 to 2.5 Pa, and then, performing cleaning inside the chamber 31, while setting the showerhead 40 at a temperature of 200 to 300° C., and supplying ClF3 gas into the chamber 31.
    Type: Application
    Filed: February 21, 2007
    Publication date: September 9, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kensaku Narushima, Satoshi Wakabayashi, Kunihiro Tada
  • Publication number: 20100216304
    Abstract: A cleaning process is performed on the surface of a nickel silicide film serving as an underlayer. Then, a Ti film is formed to have a film thickness of not less than 2 nm but less than 10 nm by CVD using a Ti compound gas. Then, the Ti film is nitrided. Then, a TiN film is formed on the Ti film thus nitrided, by CVD using a Ti compound gas and a gas containing N and H.
    Type: Application
    Filed: May 4, 2010
    Publication date: August 26, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kunihiro Tada, Kensaku Narushima, Satoshi Wakabayashi
  • Patent number: 7737005
    Abstract: A cleaning process is performed on the surface of a nickel silicide film serving as an underlayer. Then, a Ti film is formed to have a film thickness of not less than 2 nm but less than 10 nm by CVD using a Ti compound gas. Then, the Ti film is nitrided. Then, a TiN film is formed on the Ti film thus nitrided, by CVD using a Ti compound gas and a gas containing N and H.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: June 15, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Kunihiro Tada, Kensaku Narushima, Satoshi Wakabayashi
  • Publication number: 20100081292
    Abstract: A gas delivery apparatus comprises: a chamber surrounding a substrate to be processed; a showerhead disposed within the chamber; and gas supply means supplying a gas comprising a mixture of NH3 and H2 to the chamber, in which a coating layer deposited on the interior of the chamber and the showerhead contain nickel (Ni). When the apparatus is utilized to practice a method comprising exposing an object W to a gas comprising a mixture consisting of NH3 and H2, the H2/NH3 gas flow rate ratio and the temperature are controlled so that the reaction of nickel contained in the coating layer deposited on the interior of the chamber and the showerhead is suppressed.
    Type: Application
    Filed: June 20, 2006
    Publication date: April 1, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kensaku Narushima, Satoshi Wakabayashi
  • Patent number: 7645185
    Abstract: A substrate delivery mechanism comprises a top ring, a substrate loader for loading a substrate, and a pusher mechanism, wherein the substrate loader comprises a top ring guide and the pusher mechanism comprises a top ring guide lifting table, in which the top ring guide and the top ring guide lifting table together form a sealed space below the substrate held by the top ring in a condition where the substrate loader is moved up by the pusher mechanism, wherein the substrate is detached from the top ring by exhausting the sealed space while at the same time injecting a fluid from through-holes provided in a substrate holding surface of the top ring.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: January 12, 2010
    Assignee: Ebara Corporation
    Inventors: Soichi Isobe, Hideo Aizawa, Hiroomi Torii, Daisuke Koga, Satoshi Wakabayashi
  • Patent number: 7632378
    Abstract: A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus comprises a turntable having a polishing surface, a top ring for holding a workpiece and pressing the workpiece against the polishing surface to polish the workpiece, at least three cleaning apparatuses for cleaning polished workpieces, and a transfer structure for transferring the polished workpieces between at least three cleaning apparatuses. The polishing apparatus further includes a rotary transporter disposed in a position which can be accessed by said top rings and having a plurality of portions positioned on a predetermined circumference from a center of rotation of the rotary transporter for holding the workpieces.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: December 15, 2009
    Assignee: Ebara Corporation
    Inventors: Kunihiko Sakurai, Tetsuji Togawa, Nobuyuki Takada, Satoshi Wakabayashi, Kenichiro Saito, Masahiko Sekimoto, Takuji Hayama, Daisuke Koga
  • Publication number: 20090208650
    Abstract: A Ti-based film forming method includes a step (step 1) of cleaning inside a chamber by introducing a cleaning gas containing fluorine into the chamber in a state where a wafer W is not provided on a susceptor; a step (step 2) of heating the susceptor in a state where the wafer W is not provided on the susceptor, injecting a processing gas containing Ti from a shower head into the chamber, and forming a pre-coated film at least on the surface of the shower head; and a step (step 3) of mounting the wafer W on the susceptor 2 in a state where the susceptor is heated, supplying a processing gas into the chamber 1 and forming a Ti-based film on the wafer W. The pre-coated film forming step is performed at a temperature lower than that in the film forming step.
    Type: Application
    Filed: April 17, 2009
    Publication date: August 20, 2009
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kensaku NARUSHIMA, Satoshi Wakabayashi, Takamitsu Takayama
  • Patent number: 7514120
    Abstract: The precoat film forming method of a film forming device having a loading table for loading the object, includes a deposition step of feeding processing gas inside the film forming device and depositing a precoat TiN film on the surface of the loading table and a stabilization step of reducing and stabilizing the precoat film on the loading table, wherein the precoat film formed on the loading table at the deposition step has a film thickness within a range such that even if the film thickness of the precoat film changes, a radiation heat quantity from the loading table becomes generally constant. Therefore, as the thermal stability is maintained at the film forming process of semiconductor wafers, it is possible to improve the reproducibility in the film forming process.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: April 7, 2009
    Assignee: Tokyo Electron Limited
    Inventors: Satoshi Wakabayashi, Toshio Hasegawa
  • Publication number: 20080226822
    Abstract: The precoat film forming method has the deposition step of feeding processing gas into the film forming device having the loading table structure 18 internally which has the loading table 16 for loading the article W to be processed and depositing the precoat film 22 composed of a TiN film on the surface of the loading table and the stabilization step of exposing and stabilizing the precoat film in NH3 (ammonia) containing gas by keeping the loading table at a temperature higher than the temperature at the deposition step. By doing this, the precoat film is stabilized, thereby even during a period of idling, there is no need to lower the temperature of the loading table and the throughput can be improved.
    Type: Application
    Filed: May 15, 2008
    Publication date: September 18, 2008
    Inventors: Satoshi Wakabayashi, Toshio Hasegawa
  • Publication number: 20080107825
    Abstract: A film deposition method by a film deposition apparatus having a process container provided with a holding table to hold a substrate to be processed therein and a showerhead part to which a radio frequency electric power for exciting plasma in the process container is applied, the method including: a film deposition process of forming a thin film containing a metal on the substrate to be processed; and a protective film forming process of forming a protective film containing a different metal on the showerhead before a film forming process.
    Type: Application
    Filed: December 12, 2005
    Publication date: May 8, 2008
    Applicant: Tokyo Electron Limited
    Inventors: Tadahiro Ishizaka, Atsushi Gomi, Satoshi Wakabayashi
  • Publication number: 20070264914
    Abstract: A substrate delivery mechanism comprises a top ring, a substrate loader for loading a substrate, and a pusher mechanism, wherein the substrate loader comprises a top ring guide and the pusher mechanism comprises a top ring guide lifting table, in which the top ring guide and the top ring guide lifting table together form a sealed space below the substrate held by the top ring in a condition where the substrate loader is moved up by the pusher mechanism, wherein the substrate is detached from the top ring by exhausting the sealed space while at the same time injecting a fluid from through-holes provided in a substrate holding surface of the top ring.
    Type: Application
    Filed: July 17, 2007
    Publication date: November 15, 2007
    Inventors: Soichi Isobe, Hideo Aizawa, Hiroomi Torii, Daisuke Koga, Satoshi Wakabayashi
  • Publication number: 20070257372
    Abstract: A cleaning process is performed on the surface of a nickel silicide film serving as an underlayer. Then, a Ti film is formed to have a film thickness of not less than 2 nm but less than 10 nm by CVD using a Ti compound gas. Then, the Ti film is nitrided. Then, a TiN film is formed on the Ti film thus nitrided, by CVD using a Ti compound gas and a gas containing N and H.
    Type: Application
    Filed: April 8, 2005
    Publication date: November 8, 2007
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kunihiro Tada, Kensaku Narushima, Satoshi Wakabayashi
  • Publication number: 20070131168
    Abstract: The invention relates to a gas supplying unit to be arranged to hermetically fit in an opening formed at a ceiling part of a processing container for conducting a process to a substrate. The gas supplying unit includes a plurality of nickel members. A large number of gas-supplying holes is formed at a lower surface of the gas supplying unit, a process gas is adapted to be supplied from the large number of gas-supplying holes into the processing container, and the plurality of nickel members is fixed to each other via an intermediate member for preventing sticking made of a material different from nickel.
    Type: Application
    Filed: October 27, 2006
    Publication date: June 14, 2007
    Inventors: Hisashi Gomi, Tetsuya Saito, Takashi Kakegawa, Takahisa Mase, Makoto Koizumi, Kunihiro Tada, Satoshi Wakabayashi, Kensaku Narushima, Fang Cheng
  • Publication number: 20070093186
    Abstract: A substrate delivery mechanism comprises a top ring, a substrate loader for loading a substrate, and a pusher mechanism, wherein the substrate loader comprises a top ring guide and the pusher mechanism comprises a top ring guide lifting table, in which the top ring guide and the top ring guide lifting table together form a sealed space below the substrate held by the top ring in a condition where the substrate loader is moved up by the pusher mechanism, wherein the substrate is detached from the top ring by exhausting the sealed space while at the same time injecting a fluid from through-holes provided in a substrate holding surface of the top ring.
    Type: Application
    Filed: November 22, 2006
    Publication date: April 26, 2007
    Inventors: Soichi Isobe, Hideo Aizawa, Hiroomi Torii, Daisuke Koga, Satoshi Wakabayashi
  • Patent number: 7160180
    Abstract: A substrate delivery mechanism comprises a top ring, a substrate loader for loading a substrate, and a pusher mechanism, wherein the substrate loader comprises a top ring guide and the pusher mechanism comprises a top ring guide lifting table, in which the top ring guide and the top ring guide lifting table together form a sealed space below the substrate held by the top ring in a condition where the substrate loader is moved up by the pusher mechanism, wherein the substrate is detached from the top ring by exhausting the sealed space while at the same time injecting a fluid from through-holes provided in a substrate holding surface of the top ring.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: January 9, 2007
    Assignee: Ebara Corporation
    Inventors: Soichi Isobe, Hideo Aizawa, Hiroomi Torii, Daisuke Koga, Satoshi Wakabayashi
  • Publication number: 20060199478
    Abstract: A substrate delivery mechanism comprises a top ring, a substrate loader for loading a substrate, and a pusher mechanism, wherein the substrate loader comprises a top ring guide and the pusher mechanism comprises a top ring guide lifting table, in which the top ring guide and the top ring guide lifting table together form a sealed space below the substrate held by the top ring in a condition where the substrate loader is moved up by the pusher mechanism, wherein the substrate is detached from the top ring by exhausting the sealed space while at the same time injecting a fluid from through-holes provided in a substrate holding surface of the top ring.
    Type: Application
    Filed: May 5, 2006
    Publication date: September 7, 2006
    Inventors: Soichi Isobe, Hideo Aizawa, Hiroomi Torii, Daisuke Koga, Satoshi Wakabayashi