Patents by Inventor Hitoshi Kosugi

Hitoshi Kosugi 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: 7826032
    Abstract: A circulation system for a high refractive index liquid includes a first collecting section configured to collect a high refractive index liquid used in an immersion light exposure section; a first supply section configured to supply the high refractive index liquid collected in the first collecting section to a cleaning section as a cleaning liquid; a second collecting section configured to collect the high refractive index liquid used in the cleaning section; and a second supply section configured to supply the high refractive index liquid collected in the second collecting section to the immersion light exposure section, wherein the high refractive index liquid is circulated between the immersion light exposure section and the cleaning section.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: November 2, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Taro Yamamoto, Hitoshi Kosugi, Yoshiaki Yamada, Yasuhito Saiga
  • Patent number: 7733472
    Abstract: A method is used for determining a condition of a predetermined process for preparing a process target, which includes a coating film formed on a substrate and including a resist film. This is to prevent film peeling from occurring in the coating film when performing immersion light exposure after the predetermined process. The method includes preparing test targets, each of which includes a sample film corresponding to the coating film and formed on a sample substrate corresponding to the substrate; performing a test process on each of the test targets in a testing unit, which imitates an immersion light exposure apparatus, under a condition corresponding to a designated immersion light exposure condition; and determining a condition of the predetermined process to be used for the coating film, based on a result of the test process.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 8, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Taro Yamamoto, Hitoshi Kosugi
  • Patent number: 7651285
    Abstract: An edge exposure apparatus performing an exposure process on an edge portion of a wafer having a coating film (resist film) formed thereon includes position detection means for detecting positional data of an outer edge of a wafer held by a spin chuck, an exposure portion for performing an exposure process on the edge portion of the wafer, a development nozzle supplying a developer to the exposed region, and alignment means for horizontally moving the spin chuck. An exposure process is performed by the exposure portion on the edge portion of the wafer held by the spin chuck while the alignment means is controlled, based on the positional data of the outer edge of the wafer which is detected by the position detection means, such that the positional relation between the outer edge of the wafer and the exposure portion is kept constant.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: January 26, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Hitoshi Kosugi, Taro Yamamoto, Yoshiaki Yamada, Yasuhito Saiga
  • Patent number: 7431040
    Abstract: An apparatus and method for dispensing a rinse solution on a substrate in which the rinse solution is dispensed through one nozzle array substantially near a center of a substrate and is dispensed through a second nozzle array across a radial span of the substrate. Accordingly, the apparatus includes a first nozzle array including at least one nozzle and configured to dispense the rinse solution substantially near a center of the substrate, a first control valve coupled to the first nozzle array and configured to actuate a first flow rate of the rinse solution through the first nozzle array, a second nozzle array including a plurality of nozzles and configured to dispense the rinse solution across a radial span of the substrate, and a second control valve coupled to the second nozzle array and configured to actuate a second flow rate of said rinse solution through the second nozzle array.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: October 7, 2008
    Assignee: Tokyo Electron Limited
    Inventor: Hitoshi Kosugi
  • Publication number: 20080204675
    Abstract: A coating/developing apparatus includes a process section including processing units to perform a series of processes for resist coating and development; an interface section disposed between the process section and immersion light exposure apparatus; and a drying section disposed in the interface section to dry the substrate immediately after the immersion light exposure process. The drying section includes a process container configured to accommodate the substrate, a substrate support member configured to place the substrate thereon, a temperature-adjusted gas supply mechanism configured to supply a temperature-adjusted gas into the process container, and an exhaust mechanism configured to exhaust the process container. The drying section is arranged to dry the substrate by supplying the temperature-adjusted gas into the process container with the substrate placed on the substrate support member, while exhausting the process container.
    Type: Application
    Filed: December 18, 2007
    Publication date: August 28, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hisashi Kawano, Junichi Kitano, Hitoshi Kosugi, Koichi Hontake, Masashi Enomoto
  • Publication number: 20080118861
    Abstract: Such a film forming method is provided that can prevent peeling of surface films including a resist film from a substrate during immersion exposure. The film forming method includes the steps of forming surface films including a resist film and a protective film covering the resist film over a surface of a wafer, and forming an edge cap film by supplying an edge cap film material to at least a boundary portion including a periphery of the wafer and peripheries of the surface films such as the protective film.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 22, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hitoshi Kosugi, Taro Yamamoto, Yoshiaki Yamada, Yasuhito Saiga
  • Publication number: 20080088809
    Abstract: An edge exposure apparatus performing an exposure process on an edge portion of a wafer having a coating film (resist film) formed thereon includes position detection means for detecting positional data of an outer edge of a wafer held by a spin chuck, an exposure portion for performing an exposure process on the edge portion of the wafer, a development nozzle supplying a developer to the exposed region, and alignment means for horizontally moving the spin chuck. An exposure process is performed by the exposure portion on the edge portion of the wafer held by the spin chuck while the alignment means is controlled, based on the positional data of the outer edge of the wafer which is detected by the position detection means, such that the positional relation between the outer edge of the wafer and the exposure portion is kept constant.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 17, 2008
    Inventors: Hitoshi Kosugi, Taro Yamamoto, Yoshiaki Yamada, Yasuhito Saiga
  • Publication number: 20080037013
    Abstract: A method is used for determining a condition of a predetermined process for preparing a process target, which includes a coating film formed on a substrate and including a resist film. This is to prevent film peeling from occurring in the coating film when performing immersion light exposure after the predetermined process. The method includes preparing test targets, each of which includes a sample film corresponding to the coating film and formed on a sample substrate corresponding to the substrate; performing a test process on each of the test targets in a testing unit, which imitates an immersion light exposure apparatus, under a condition corresponding to a designated immersion light exposure condition; and determining a condition of the predetermined process to be used for the coating film, based on a result of the test process.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 14, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Taro Yamamoto, Hitoshi Kosugi
  • Publication number: 20080038671
    Abstract: A pattern forming method includes forming a resist film or sequentially forming a resist film and a protection film in this order on a surface of a substrate; then, performing immersion light exposure that includes immersing the resist film or the resist film and the protection film formed on the substrate in a liquid during light exposure, thereby forming a predetermined light exposure pattern on the resist film; and performing a development process of the light exposure pattern by use of a development liquid, thereby forming a predetermined resist pattern. After the immersion light exposure and before the development process, the method further includes performing a hydrophilic process of turning a surface of the resist film or the protection film serving as a substrate surface into a hydrophilic state to allow the substrate surface to be wetted with the development liquid overall.
    Type: Application
    Filed: July 24, 2007
    Publication date: February 14, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Taro YAMAMOTO, Hitoshi Kosugi, Yoshiaki Yamada, Yasuhito Saiga
  • Publication number: 20080018868
    Abstract: A circulation system for a high refractive index liquid includes a first collecting section configured to collect a high refractive index liquid used in an immersion light exposure section; a first supply section configured to supply the high refractive index liquid collected in the first collecting section to a cleaning section as a cleaning liquid; a second collecting section configured to collect the high refractive index liquid used in the cleaning section; and a second supply section configured to supply the high refractive index liquid collected in the second collecting section to the immersion light exposure section, wherein the high refractive index liquid is circulated between the immersion light exposure section and the cleaning section.
    Type: Application
    Filed: July 16, 2007
    Publication date: January 24, 2008
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Taro YAMAMOTO, Hitoshi KOSUGI, Yoshiaki YAMADA, Yasuhito SAIGA
  • Publication number: 20050067000
    Abstract: An apparatus and method for dispensing a rinse solution on a substrate in which the rinse solution is dispensed through one nozzle array substantially near a center of a substrate and is dispensed through a second nozzle array across a radial span of the substrate. Accordingly, the apparatus includes a first nozzle array including at least one nozzle and configured to dispense the rinse solution substantially near a center of the substrate, a first control valve coupled to the first nozzle array and configured to actuate a first flow rate of the rinse solution through the first nozzle array, a second nozzle array including a plurality of nozzles and configured to dispense the rinse solution across a radial span of the substrate, and a second control valve coupled to the second nozzle array and configured to actuate a second flow rate of said rinse solution through the second nozzle array.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Hitoshi Kosugi
  • Patent number: 6780940
    Abstract: The present invention relates to an adhesive resin composition comprising a heat-generating material (A) which generates heat when subjected to high frequency induction and a thermoplastic resin (B) modified with a monomer having a functional group which reacts with an inorganic, the thermoplastic resin (B) having a melting point ranging from 90° C. to 200° C. The present invention also relates to a method for separating a bonded article into adherends, the method comprising detaching by induction heating the bonded portions of adherends bonded together by the thermoplastic resin composition comprising a heat-generating material (A) which generates heat when subjected to high frequency induction and a thermoplastic resin (B) modified with a monomer having a functional group which reacts with an inorganic substance and has a melting point ranging from 90° C. to 200° C.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: August 24, 2004
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Nori Yoshihara, Kenji Ohama, Satoshi Sakai, Hitoshi Kosugi, Koji Nakanishi
  • Patent number: 6496245
    Abstract: The present invention is a method of supplying a developing solution to an entire face of a substrate to perform a developing treatment, including the steps of: moving a developing solution supply nozzle at a predetermined speed at least from one end to another end of the substrate while the developing solution is being supplied; measuring an amplitude of a wave on a solution face of the developing solution supplied on the substrate after the supply of the developing solution; and changing the predetermined speed of the developing solution supply nozzle based on a measured value. Accordingly, it is unnecessary to measure a line width or the like which is finally formed on the substrate before correction as in the conventional art, and thus the correction can be made earlier as compared with the conventional case, resulting in a reduced number of defective items and improved yield.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: December 17, 2002
    Assignee: Tokyo Electron Limited
    Inventors: Hitoshi Kosugi, Hideharu Kyouda
  • Publication number: 20020061968
    Abstract: The present invention relates to an adhesive resin composition comprising a heat-generating material (A) which generates heat when subjected to high frequency induction and a thermoplastic resin (B) modified with a monomer having a functional group which reacts with an inorganic, the thermoplastic resin (B) having a melting point ranging from 90° C. to 200° C. The present invention also relates to a method for separating a bonded article into adherends, the method comprising detaching by induction heating the bonded portions of adherends bonded together by the thermoplastic resin composition comprising a heat-generating material (A) which generates heat when subjected to high frequency induction and a thermoplastic resin (B) modified with a monomer having a functional group which reacts with an inorganic substance and has a melting point ranging from 90° C. to 200° C.
    Type: Application
    Filed: September 25, 2001
    Publication date: May 23, 2002
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Nori Yoshihara, Kenji Ohama, Satoshi Sakai, Hitoshi Kosugi, Koji Nakanishi
  • Publication number: 20020008857
    Abstract: The present invention is a method of supplying a developing solution to an entire face of a substrate to perform a developing treatment, including the steps of: moving a developing solution supply nozzle at a predetermined speed at least from one end to another end of the substrate while the developing solution is being supplied; measuring an amplitude of a wave on a solution face of the developing solution supplied on the substrate after the supply of the developing solution; and changing the predetermined speed of the developing solution supply nozzle based on a measured value. Accordingly, it is unnecessary to measure a line width or the like which is finally formed on the substrate before correction as in the conventional art, and thus the correction can be made earlier as compared with the conventional case, resulting in a reduced number of defective items and improved yield.
    Type: Application
    Filed: April 23, 2001
    Publication date: January 24, 2002
    Applicant: Tokyo Electron Limited
    Inventors: Hitoshi Kosugi, Hideharu Kyouda
  • Patent number: 6267516
    Abstract: A developing apparatus comprises a table on which is disposed a substrate having a resist coating film formed thereon, a nozzle for supplying a developing solution to the substrate disposed on the table, a liquid supplying mechanism for supplying the developing solution to the nozzle, and a moving mechanism for relatively moving the nozzle and the substrate, wherein the nozzle includes a liquid inlet port communicating with the liquid supplying mechanism, a liquid reservoir for temporarily storing the developing solution supplied from the liquid supplying mechanism through the liquid inlet port, a narrow passageway communicating with the bottom portion of the liquid reservoir to cause pressure loss of the developing solution coming from the liquid reservoir, a linear liquid discharge section having a discharge port passageway communicating with the narrow passageway, and a buffering member arranged within the discharge port passageway and in the vicinity of the outlet port of the narrow passageway, the buffer
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: July 31, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Shuichi Nagamine, Masami Akimoto, Akira Nishiya, Hitoshi Kosugi