Patents by Inventor Yusuke Takano

Yusuke Takano 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: 20100203299
    Abstract: The present invention relates to a process for forming an reverse tone image on a device comprising; a) forming an optional absorbing organic underlayer on a substrate; b) forming a coating of a photoresist over the underlayer; c) forming a photoresist pattern; d) forming a polysilazane coating over the photoresist pattern from a polysilazane coating composition, where the polysilazane coating is thicker than the photoresist pattern, and further where the polysilazane coating composition comprises a silicon/nitrogen polymer and an organic coating solvent; e) etching the polysilazane coating to remove the polysilazane coating at least up to a level of the top of the photoresist such that the photoresist pattern is revealed; and, f) dry etching to remove the photoresist and the underlayer which is beneath the photoresist, thereby forming an opening beneath where the photoresist pattern was present.
    Type: Application
    Filed: February 10, 2009
    Publication date: August 12, 2010
    Inventors: David Abdallah, Ralph R. Dammel, Yusuke Takano, Jin Li, Kazunori Kurosawa
  • Patent number: 7745093
    Abstract: In the present invention, in a water soluble resin composition for use in a method for pattern formation in which a covering layer is provided on a resist pattern formed of a radiation-sensitive resin composition capable of coping with ArF exposure to increase the width of the resist pattern and thus to realize effective formation of higher density trench or hole pattern, the size reduction level of the resist pattern layer can be further increased as compared with that in the prior art technique, and, in addition, the size reduction level dependency of the coarse-and-fine resist pattern can be reduced. A method for pattern formation using the water soluble resin composition is also provided. The water soluble resin composition which is usable for the method for pattern formation applicable to ArF excimer laser irradiation comprises a water soluble resin, an acid generating agent capable of generating an acid upon heating, a surfactant, a crosslinking agent, and a water-containing solvent.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: June 29, 2010
    Inventors: Takeshi Nishibe, Sung Eun Hong, Yusuke Takano, Tetsuo Okayasu
  • Publication number: 20100119717
    Abstract: A process which comprises applying a water-soluble resin composition comprising a water-soluble vinyl resin, a compound having at least two amino groups in the molecule, a solvent, and, if necessary, an additive such as a surfactant on a resist pattern (2) formed on a substrate (1) to form a water-soluble resin film (3) , modifying part of the water-soluble resin film adjacent to the resist pattern through mixing to form a water-insolubilized layer (4) which cannot be removed by water washing on the surface of the resist pattern, and removing unmodified part of the water-soluble resin film by water washing and which enables the effective scale-down of separation size and hole opening size of a resist pattern to a level finer than the limit of resolution of the wave length of exposure.
    Type: Application
    Filed: May 1, 2008
    Publication date: May 13, 2010
    Inventors: Sung-Eun Hong, Yusuke Takano, Wen-Bing Kang
  • Publication number: 20100103888
    Abstract: A circuit switching user agent system includes a service processing device arranged in a home network of an IMS (IP Multimedia Subsystem)/MMD (Multi-Media Domain). The circuit switching user agent system also includes a communication device arranged in a visited network where a mobile terminal has visited, the communication device having a function of interconversion between a UNI (User-Network Interface) signal in a circuit switching network to which the mobile terminal is connected and a signal used in the IMS/MMD.
    Type: Application
    Filed: December 11, 2007
    Publication date: April 29, 2010
    Applicant: NEC Corporation
    Inventors: Yusuke Takano, Toshiyuki Tamura
  • Publication number: 20090238159
    Abstract: A mobile communication system for connecting a terminal to service networks includes a wireless access network device, a gateway device, and a mobility management device. The wireless access network device connects to the terminal. The gateway device establishes a plurality of tunnels connecting the terminal to the service networks and switches the plurality of tunnels according to a request. The mobility management device sends to the gateway device the request to collectively switch the plurality of tunnels.
    Type: Application
    Filed: March 11, 2008
    Publication date: September 24, 2009
    Inventors: Yusuke Takano, Toshiyuki Tamura
  • Patent number: 7592132
    Abstract: In a method of effectively miniaturizing a resist pattern, a super fine pattern-forming method of restricting a film thickness of a crosslinked film and also preventing developing defects is provided using a super fine pattern-forming material which contains a solvent composed of a water-soluble resin, a water-soluble crosslinking agent, and water or a mixing solution of water and a water-soluble organic solvent, and an amine compound-containing developing solution. The amine compound-containing developing solution is preferably a primary amine compound such as polyallylamine, monomethanolamine, and monoethanolamine, a secondary amine compound such as dimethylamine, diethylamine, dimethanolamine, and diethanolamine, a tertiary amine compound such as trimethylamine, triethylamine, trimethanolamine, and triethanolamine, or a quartenary amine compound such as hydrated tetramethylamine.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: September 22, 2009
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Kiyohisa Takahashi, Yusuke Takano
  • Patent number: 7537882
    Abstract: The object of the present invention is to provide an anti-reflective coating composition having excellent coating properties while maintaining performance as an anti-reflective film. An anti-reflective coating composition comprising at least the following components (A), (B), (C), (D), and (E) and a production method for a pattern using the anti-reflective coating composition, (A) perfluoroalkyl•alkylenesulfonic acid represented by the following formula (1): CnF2n+1(CH2CH2)mSO3H (1) (wherein, n represents an integer from 1 to 20, and m represents an integer from 0 to 20); (B) organic amine; (C) water-soluble polymer; (D) perfluoroalkylethyl group containing compound represented by the following formula (2): CkF2k+1CH2CH2—X—Y (2) (wherein, k represents an integer from 1 to 20, x represents a single bond or a divalent linking group, y represents an anionic group or a nonionic group, and this compound has a structure different from that of the component (A)); and (E) water.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 26, 2009
    Assignees: Dainippon Ink and Chemicals, Inc., AZ Electronic Materials (Japan) K.K.
    Inventors: Jirou Matsuo, Kiyofumi Takano, Yusuke Takano, Yasushi Akiyama
  • Publication number: 20080193880
    Abstract: In the present invention, in a water soluble resin composition for use in a method for pattern formation in which a covering layer is provided on a resist pattern formed of a radiation-sensitive resin composition capable of coping with ArF exposure to increase the width of the resist pattern and thus to realize effective formation of higher density trench or hole pattern, the size reduction level of the resist pattern layer can be further increased as compared with that in the prior art technique, and, in addition, the size reduction level dependency of the coarse-and-fine resist pattern can be reduced. A method for pattern formation using the water soluble resin composition is also provided. The water soluble resin composition which is usable for the method for pattern formation applicable to ArF excimer laser irradiation comprises a water soluble resin, an acid generating agent capable of generating an acid upon heating, a surfactant, a crosslinking agent, and a water-containing solvent.
    Type: Application
    Filed: April 8, 2005
    Publication date: August 14, 2008
    Inventors: Takeshi Nishibe, Sung Eun Hong, Yusuke Takano, Tetsuo Okayasu
  • Patent number: 7399582
    Abstract: In the method wherein a resist pattern is miniaturized effectively by applying a fine pattern forming material, the fine pattern forming material used for providing with a cured coated layer pattern, wherein development defects are reduced by water development is offered, wherein the fine pattern forming material comprises a water-soluble resin, a water-soluble crosslinking agent and water or a mixed solution consisting of water and a water-soluble organic solvent, and further comprises an amine compound.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: July 15, 2008
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Kiyohisa Takahashi, Yusuke Takano
  • Patent number: 7365115
    Abstract: An anti-reflective coating film is formed by applying on a chemically amplified photoresist film an anti-reflective coating composition comprising an alkali-soluble fluorine-containing polymer, an acid, an amine and a solvent capable of dissolving these components and having a pH of 7 or less. The formed anti-reflective coating film can serve to prevent multiple reflections within the photoresist film, increase the amount of reduction in thickness of the photoresist film upon development with a developer after exposure, and form a pattern having a rectangular cross-sectional pattern and not having T-top or round top.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: April 29, 2008
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Yasushi Akiyama, Yusuke Takano
  • Patent number: 7335464
    Abstract: A water-soluble resin composition of the present invention comprises at least a water-soluble resin, an acid generator capable of generating an acid by heating and a solvent containing water. The water-soluble resin composition is applied on a highly water-repellant resist pattern 3 formed by a resist such as an ArF-responsive radiation sensitive resin composition on a substrate 1 to form a coated layer 4 thereon. The resist pattern 3 and the coated layer 4 are heat-treated to form a developer-insoluble modified coated layer 5 in the vicinity of a surface of the resist pattern 3. The coated layer is developed and the resist pattern thickened by the modified layer 5 is formed. The modified layer is a layer with sufficient thickness and is able to be formed with a high dimensional controllability in a highly water-repellant resist pattern such as ArF-responsive radiation sensitive resin composition.
    Type: Grant
    Filed: February 16, 2004
    Date of Patent: February 26, 2008
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Yusuke Takano, Sung-Eun Hong
  • Publication number: 20080044759
    Abstract: A fine pattern forming material comprising a water soluble resin of polyvinyl alcohol derivative, etc., a water soluble crosslinking agent of melamine derivative, urea derivative, etc., an amine compound, a nonionic surfactant and water or a solution of a mixture of water and water soluble organic solvent, the solution exhibiting a pH value of >7. This fine pattern forming material is applied on to resist pattern (3) to thereby form coating layer (4), and the coating layer (4) is heated and developed to thereby form crosslinked coating layer (5). The thickness of the crosslinked coating layer is increased by the use of a secondary amine compound and/or tertiary amine compound over that realized when no amine compound is added, while the thickness of the crosslinked coating layer is decreased by the use of a quaternary amine.
    Type: Application
    Filed: August 23, 2005
    Publication date: February 21, 2008
    Inventors: Takeo Ishibashi, Kiyohisa Takahashi, Yusuke Takano
  • Publication number: 20080045204
    Abstract: The present invention can provide a radio communication apparatus comprising an antenna which receives a restriction signal from a radio base station, a reception circuit which decodes the restriction signal received by said antenna, and a control circuit which controls the radio communication apparatus, in which the control circuit can be adapted to select appropriately a speech outgoing/incoming scheme for performing communication with the radio base station on the basis of the restriction signal from the radio base station. As the speech outgoing/incoming scheme, a domain scheme or a speech communication scheme is used. In addition, the present invention further provides a communication network control system using the radio communication apparatus, and a communication network control method.
    Type: Application
    Filed: May 30, 2007
    Publication date: February 21, 2008
    Inventors: Yusuke TAKANO, Toshiyuki TAMURA
  • Publication number: 20070248770
    Abstract: In a method of effectively miniaturizing a resist pattern, a super fine pattern-forming method of restricting a film thickness of a crosslinked film and also preventing developing defects is provided using a super fine pattern-forming material which contains a solvent composed of a water-soluble resin, a water-soluble crosslinking agent, and water or a mixing solution of water and a water-soluble organic solvent, and an amine compound-containing developing solution. The amine compound-containing developing solution is preferably a primary amine compound such as polyallylamine, monomethanolamine, and monoethanolamine, a secondary amine compound such as dimethylamine, diethylamine, dimethanolamine, and diethanolamine, a tertiary amine compound such as trimethylamine, triethylamine, trimethanolamine, and triethanolamine, or a quartenary amine compound such as hydrated tetramethylamine.
    Type: Application
    Filed: August 31, 2005
    Publication date: October 25, 2007
    Inventors: Kiyohisa Takahashi, Yusuke Takano
  • Publication number: 20070238048
    Abstract: The object of the present invention is to provide an anti-reflective coating composition having excellent coating properties while maintaining performance as an anti-reflective film. An anti-reflective coating composition comprising at least the following components (A), (B), (C), (D), and (E) and a production method for a pattern using the anti-reflective coating composition, (A) perfluoroalkyl•alkylenesulfonic acid represented by the following formula (1): CnF2n+1(CH2CH2)mSO3H (1) (wherein, n represents an integer from 1 to 20, and m represents an integer from 0 to 20); (B) organic amine; (C) water-soluble polymer; (D) perfluoroalkylethyl group containing compound represented by the following formula (2): CkF2k+1CH2CH2—X—Y (2) (wherein, k represents an integer from 1 to 20, x represents a single bond or a divalent linking group, y represents an anionic group or a nonionic group, and this compound has a structure different from that of the component (A)); and (E) water.
    Type: Application
    Filed: June 29, 2005
    Publication date: October 11, 2007
    Applicants: DAINIPPON INK AND CHEMICALS, INC., AZ ELECTRONIC MATTERIALS (JAPAN) K.K.
    Inventors: Jirou Matsuo, Kiyofumi Takano, Yusuke Takano, Yasushi Akiyama
  • Patent number: 7235348
    Abstract: In accordance with the objectives of the invention a new water soluble negative photoresist is provided for packing-and-unpacking (PAU) processing steps.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: June 26, 2007
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Bang-Chein Ho, Jian-Hong Chen, Yusuke Takano, Ping-Hung Lu
  • Patent number: 7195863
    Abstract: A composition for reducing development defects comprising an acidic composition containing, for example, a surfactant applied onto a chemically amplified photoresist coating formed on a substrate having a diameter of 8 inches or more. By this process, the surface of the resist is rendered hydrophilic and the formation of slightly soluble layer in a developer on the surface of the resist is prevented. In addition, by proper diffusion amount of acid from the composition for reducing development defects, the amount of reduction in thickness of the chemically amplified photoresist coating after development is increased by 10 ? to 500 ? in comparison with the case of not applying the composition for reducing development defects to form a resist pattern not having a deteriorated pattern profile such as T-top or round top.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: March 27, 2007
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Yusuke Takano, Kazuyo Ijima, Satoru Funato, Yoshio Murakami, Hatsuyuki Tanaka
  • Publication number: 20070059644
    Abstract: The present invention provides a method of forming a fine pattern, comprising the steps of forming a resist pattern 3 made of a chemically amplified photoresist on a substrate 1 with a diameter of 6 inches or more, applying a fine pattern forming material containing a water-soluble resin, a water-soluble crosslinking agent and water or a mixed solvent of water and a water-soluble organic solvent to form a coated layer 4, baking the chemically amplified photoresist pattern and the coated layer, and developing the coated layer after baking, wherein the water-soluble resin in the fine pattern forming material is a water-soluble resin, the peak temperature of heat of fusion of which in a DSC curve is higher than the baking temperature in the above baking step and simultaneously higher than 130° C.
    Type: Application
    Filed: June 4, 2004
    Publication date: March 15, 2007
    Inventors: Kiyohisa Takahashi, Yusuke Takano
  • Publication number: 20060183218
    Abstract: In the method wherein a resist pattern is miniaturized effectively by applying a fine pattern forming material, the fine pattern forming material used for providing with a cured coated layer pattern, wherein development defects are reduced by water development is offered, wherein the fine pattern forming material comprises a water-soluble resin, a water-soluble crosslinking agent and water or a mixed solution consisting of water and a water-soluble organic solvent, and further comprises an amine compound.
    Type: Application
    Filed: June 4, 2004
    Publication date: August 17, 2006
    Inventors: Kiyohisa Takahashi, Yusuke Takano
  • Publication number: 20060160015
    Abstract: A water-soluble resin composition of the present invention comprises at least a water-soluble resin, an acid generator capable of generating an acid by heating and a solvent containing water. The water-soluble resin composition is applied on a highly water-repellant resist pattern 3 formed by a resist such as an ArF-responsive radiation sensitive resin composition on a substrate 1 to form a coated layer 4 thereon. The resist pattern 3 and the coated layer 4 are heat-treated to form a developer-insoluble modified coated layer 5 in the vicinity of a surface of the resist pattern 3. The coated layer is developed and the resist pattern thickened by the modified layer 5 is formed. The modified layer is a layer with sufficient thickness and is able to be formed with a high dimensional controllability in a highly water-repellant resist pattern such as ArF-responsive radiation sensitive resin composition.
    Type: Application
    Filed: February 16, 2004
    Publication date: July 20, 2006
    Inventors: Yusuke Takano, Sung-Eun Hong