Patents by Inventor Yukio Fukunaga
Yukio Fukunaga 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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Patent number: 8205625Abstract: A surface treatment apparatus of a substrate can clean a substrate surface in the air without employing a vacuum apparatus, and can remove a natural oxide film or an organic material, such as BTA, from the substrate surface without resorting to plasma cleaning. The surface treatment apparatus includes: an inert gas supply section for supplying an inert gas to the whole or part of a substrate surface to form an oxygen-blocking zone; a heating section for keeping the substrate surface at a predetermined temperature; and a cleaning gas supply section for supplying a cleaning gas to the oxygen-blocking zone to clean the substrate surface.Type: GrantFiled: November 27, 2007Date of Patent: June 26, 2012Assignee: Ebara CorporationInventors: Hideki Tateishi, Tsutomu Nakada, Akira Susaki, Shohei Shima, Yukio Fukunaga
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Publication number: 20100105154Abstract: A substrate processing method can securely form a metal film by electroless plating on an exposed surface of a base metal, such as interconnects, with increased throughput and without the formation of voids in the base metal. The substrate processing method includes: cleaning a surface of a substrate having a base metal formed in the surface with a cleaning solution comprising an aqueous solution of a carboxyl group-containing organic acid or its salt and a surfactant as an additive; bringing the surface of the substrate after the cleaning into contact with a processing solution comprising a mixture of the cleaning solution and a solution containing a catalyst metal ion, thereby applying the catalyst to the surface of the substrate; and forming a metal film by electroless plating on the catalyst-applied surface of the substrate.Type: ApplicationFiled: January 12, 2010Publication date: April 29, 2010Inventors: XINMING WANG, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga, Akira Owatari, Yukiko Nishioka
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Publication number: 20100097607Abstract: A film thickness measuring method can carry out measurement of a thickness of an oxide film more simply in a shorter time. The film thickness measuring method includes determining a thickness of an oxide film or thin film of a metal or alloy by solely using a phase difference ?, measured by ellipsometry, based on a predetermined relationship between the phase difference ? and the thickness of the oxide film or thin film of the metal or alloy.Type: ApplicationFiled: August 1, 2006Publication date: April 22, 2010Inventors: Akira Susaki, Shohei Shima, Yukio Fukunaga, Hideki Tateishi, Junko Mine
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Patent number: 7498261Abstract: A metal film-forming method of the present invention can form a metal film having different film qualities in the thickness direction, in a continuous manner using a single processing solution. The metal film-forming method including: providing a substrate having embedded interconnects formed in interconnect recesses provided in a surface of the substrate; and forming a metal film, having different film qualities in the thickness direction, on surfaces of the interconnects in a continuous manner by changing the flow state of a processing solution relative to the surface of the substrate while keeping the surface of the substrate in contact with the processing solution.Type: GrantFiled: September 7, 2005Date of Patent: March 3, 2009Assignee: Ebara CorporationInventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga, Akira Owatari
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Publication number: 20080124932Abstract: An surface treatment apparatus of a substrate can clean a substrate surface in the air without employing a vacuum apparatus, and can remove a natural oxide film or an organic material, such as BTA, from the substrate surface without resorting to plasma cleaning. The surface treatment apparatus includes: an inert gas supply section for supplying an inert gas to the whole or part of a substrate surface to form an oxygen-blocking zone; a heating section for keeping the substrate surface at a predetermined temperature; and a cleaning gas supply section for supplying a cleaning gas to the oxygen-blocking zone to clean the substrate surface.Type: ApplicationFiled: November 27, 2007Publication date: May 29, 2008Inventors: Hideki Tateishi, Tsutomu Nakada, Akira Susaki, Shohei Shima, Yukio Fukunaga
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Patent number: 7374584Abstract: The present invention provides an interconnects-forming method and an interconnects-forming apparatus which can minimize the lowering of processing accuracy in etching, minimize light exposure processing for the formation of interconnect recesses in the production of multi-level interconnects, improve the electromigration resistance of interconnects without impairing the electrical properties of the interconnects, and enhance the reliability of the device.Type: GrantFiled: April 6, 2007Date of Patent: May 20, 2008Assignee: Ebara CorporationInventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga
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Publication number: 20080000776Abstract: A substrate processing method can securely form a metal film by electroless plating on an exposed surface of a base metal, such as interconnects, with increased throughput and without the formation of voids in the base metal. The substrate processing method includes: cleaning a surface of a substrate having a base metal formed in the surface with a cleaning solution comprising an aqueous solution of a carboxyl group-containing organic acid or its salt and a surfactant as an additive; bringing the surface of the substrate after the cleaning into contact with a processing solution comprising a mixture of the cleaning solution and a solution containing a catalyst metal ion, thereby applying the catalyst to the surface of the substrate; and forming a metal film by electroless plating on the catalyst-applied surface of the substrate.Type: ApplicationFiled: August 29, 2007Publication date: January 3, 2008Inventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga, Akira Owatari, Yukiko Nishioka
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Publication number: 20070289604Abstract: To provide an apparatus and a method capable of supplying a gas containing an evaporated reducing organic compound while strictly controlling the flow rate thereof to process a surface of a metal on a substrate without causing any deterioration of various types of films forming a semiconductor element with a simple apparatus configuration. The apparatus includes a process chamber 10 for keeping a substrate W therein, the process chamber 10 being gastight, an evacuation control system 20 for controlling the pressure in the process chamber 10, and a process gas supply system 30 for supplying a process gas containing a reducing organic compound to the process chamber 10.Type: ApplicationFiled: April 27, 2005Publication date: December 20, 2007Inventors: Yukio Fukunaga, Akira Susaki, Junji Kunisawa, Hiroyuki Ueyama, Shohei Shima, Akira Fukunaga, Hideki Tateishi, Junko Mine
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Patent number: 7285492Abstract: A substrate processing method can securely form a metal film by electroless plating on an exposed surface of a base metal, such as interconnects, with increased throughput and without the formation of voids in the base metal. The substrate processing method includes: cleaning a surface of a substrate having a base metal formed in the surface with a cleaning solution comprising an aqueous solution of a carboxyl group-containing organic acid or its salt and a surfactant as an additive; bringing the surface of the substrate after the cleaning into contact with a processing solution comprising a mixture of the cleaning solution and a solution containing a catalyst metal ion, thereby applying the catalyst to the surface of the substrate; and forming a metal film by electroless plating on the catalyst-applied surface of the substrate.Type: GrantFiled: January 24, 2005Date of Patent: October 23, 2007Assignee: Ebara CorporationInventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga, Akira Owatari, Yukiko Nishioka, Tsuyoshi Sahoda
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Publication number: 20070228569Abstract: The present invention provides an interconnects-forming method and an interconnects-forming apparatus which can minimize the lowering of processing accuracy in etching, minimize light exposure processing for the formation of interconnect recesses in the production of multi-level interconnects, improve the electromigration resistance of interconnects without impairing the electrical properties of the interconnects, and enhance the reliability of the device.Type: ApplicationFiled: April 6, 2007Publication date: October 4, 2007Inventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga
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Patent number: 7217653Abstract: The present invention provides an interconnects-forming method and an interconnects-forming apparatus which can minimize the lowering of processing accuracy in etching, minimize light exposure processing for the formation of interconnect recesses in the production of multi-level interconnects, improve the electromigration resistance of interconnects without impairing the electrical properties of the interconnects, and enhance the reliability of the device.Type: GrantFiled: July 22, 2004Date of Patent: May 15, 2007Assignee: Ebara CorporationInventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga
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Publication number: 20070034502Abstract: An electrolytic processing apparatus is used to remove a metal film formed on a surface of a substrate. The electrolytic processing apparatus includes a feeding electrode 31 for feeding electricity to a metal film 6 on a substrate W, a processing electrode 32 for processing the metal film 6, a substrate carrier 11 for holding the substrate W, a first supply passage 51 for supplying a first electrolytic processing liquid, a second supply passage 52 for supplying a second electrolytic processing liquid, an insulating member 36 for electrically isolating the first electrolytic processing liquid and the second electrolytic processing liquid, a table 12 on which the feeding electrode 31, the processing electrode 32, and the insulating member 36 are disposed, and a relative movement mechanism 17 for making a relative movement between the table 12 and the substrate carrier 11.Type: ApplicationFiled: August 12, 2005Publication date: February 15, 2007Inventors: Masayuki Kumekawa, Norio Kimura, Yukio Fukunaga, Katsuyuki Musaka
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Publication number: 20070034525Abstract: An electrolytic processing method is used to remove a metal film formed on a surface of a substrate. The electrolytic processing method includes providing a feeding electrode 31 and a processing electrode 32 on a table 12, providing an insulating member 36 between the feeding electrode and the processing electrode, holding the substrate W by a substrate carrier 11, bringing the substrate into contact with the insulating member, supplying first and second electrolytic processing liquids to gaps between the feeding electrode and the substrate and between the processing electrode and the substrate, respectively, while the first and second electrolytic processing liquids are electrically isolated, applying voltage between the feeding electrode and the processing electrode, and making a relative movement between the substrate carrier and the table to electrically process the metal film.Type: ApplicationFiled: August 12, 2005Publication date: February 15, 2007Inventors: Masayuki Kumekawa, Norio Kimura, Yukio Fukunaga, Katsuyuki Musaka, Hariklia Deligianni, Emanuel Cooper, Philippe Vereecken
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Publication number: 20070034526Abstract: 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: ApplicationFiled: August 12, 2005Publication date: February 15, 2007Inventors: 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
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Publication number: 20060118598Abstract: A bonding apparatus can bond contacts of electronic components directly to each other without the need for solder. The bonding apparatus include a hermetically sealed processing chamber, a plurality of bases for holding at least two workpieces having respective bonding regions in the processing chamber, a gas inlet for introducing a processing gas to clean the bonding regions into the processing chamber, a pressure controller for controlling a predetermined pressure to be developed in the processing chamber, a heater for heating the workpieces in the processing chamber, and a bonding unit for pressing and bonding the bonding regions of the workpieces to each other in the processing chamber.Type: ApplicationFiled: December 2, 2005Publication date: June 8, 2006Applicant: EBARA CORPORATIONInventors: Yusuke Chikamori, Naoaki Ogure, Hideki Tateishi, Yukio Fukunaga, Hiroyuki Ueyama
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Publication number: 20060057839Abstract: A metal film-forming method of the present invention can form a metal film having different film qualities in the thickness direction, in a continuous manner using a single processing solution. The metal film-forming method including: providing a substrate having embedded interconnects formed in interconnect recesses provided in a surface of the substrate; and forming a metal film, having different film qualities in the thickness direction, on surfaces of the interconnects in a continuous manner by changing the flow state of a processing solution relative to the surface of the substrate while keeping the surface of the substrate in contact with the processing solution.Type: ApplicationFiled: September 7, 2005Publication date: March 16, 2006Inventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga, Akira Owatari
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Publication number: 20050245080Abstract: A substrate processing method can securely form a metal film by electroless plating on an exposed surface of a base metal, such as interconnects, with increased throughput and without the formation of voids in the base metal. The substrate processing method includes: cleaning a surface of a substrate having a base metal formed in the surface with a cleaning solution comprising an aqueous solution of a carboxyl group-containing organic acid or its salt and a surfactant as an additive; bringing the surface of the substrate after the cleaning into contact with a processing solution comprising a mixture of the cleaning solution and a solution containing a catalyst metal ion, thereby applying the catalyst to the surface of the substrate; and forming a metal film by electroless plating on the catalyst-applied surface of the substrate.Type: ApplicationFiled: January 24, 2005Publication date: November 3, 2005Inventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga, Akira Owatari, Yukiko Nishioka, Tsuyoshi Sahoda
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Publication number: 20050155865Abstract: 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: ApplicationFiled: May 14, 2004Publication date: July 21, 2005Inventors: Koji Mishima, Keisuke Namiki, Masao Hodai, Junji Kunisawa, Natsuki Makino, Yukio Fukunaga
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Publication number: 20050064702Abstract: The present invention provides an interconnects-forming method and an interconnects-forming apparatus which can minimize the lowering of processing accuracy in etching, light exposure or the like processing for the formation of interconnect recesses in the production of multi-level interconnects, can improve the electromigration resistance of interconnects without impairing the electrical properties of the interconnects, and can enhance the reliabilityof the device.Type: ApplicationFiled: July 22, 2004Publication date: March 24, 2005Inventors: Xinming Wang, Daisuke Takagi, Akihiko Tashiro, Yukio Fukunaga, Akira Fukunaga
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Publication number: 20050048768Abstract: There is provided an apparatus for forming interconnects which can form embedded interconnects or interconnects protected with a protective film while preventing the formation of an oxide film. An interconnects-forming apparatus for forming embedded interconnects in a surface of a substrate, includes: a barrier layer-forming apparatus for forming a barrier layer on a surface of a substrate; a metal layer-forming apparatus for forming a metal layer on the surface of the barrier layer formed in the barrier layer-forming apparatus; and an apparatus frame capable of controlling the internal atmosphere; wherein the barrier layer-forming apparatus and the metal layer-forming apparatus are disposed in the apparatus frame.Type: ApplicationFiled: August 25, 2004Publication date: March 3, 2005Inventors: Hiroaki Inoue, Yukio Fukunaga, Akira Susaki