Patents by Inventor Taro Yamamoto

Taro Yamamoto 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: 8387630
    Abstract: The present invention improves recover percentage at which a mixed chemical solution discharged from a protective film removing device.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: March 5, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Taro Yamamoto, Kousuke Yoshihara
  • Patent number: 8337104
    Abstract: There is provided a developing apparatus and a developing method capable of rapidly forming a liquid film of a developing solution on an entire surface of a substrate while reducing a usage amount of the developing solution. The developing apparatus includes an airtightly sealed processing vessel that forms a processing atmosphere therein; a temperature control plate that is provided within the processing vessel and mounts the substrate thereon; an atmosphere gas supply unit that supplies an atmosphere gas including mist and vapor of a developing solution onto a surface of the substrate within the processing vessel; and a first temperature control unit that controls the temperature control plate to a temperature allowing the atmosphere gas to be condensed on the substrate. Here, an inner wall of the processing vessel is maintained at a temperature at which the atmosphere gas is hardly condensed on the inner wall.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: December 25, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Yasushi Takiguchi, Taro Yamamoto, Hiroshi Arima, Kousuke Yoshihara, Yuichi Yoshida
  • Patent number: 8333522
    Abstract: There is provided a developing apparatus capable of achieving high throughput. The developing apparatus includes an airtightly sealed processing vessel that forms a processing atmosphere therein; an atmosphere gas supply unit that supplies an atmosphere gas containing mist of a developing solution into the processing vessel in order to form a liquid film of the developing solution on a surface of a substrate loaded into the processing vessel; and a drying unit that dries the substrate in order to stop a developing process by the liquid film. A reaction between a resist and the developing solution can be stopped. Therefore, a developing process can be performed in parallel with a cleaning process performed by a cleaning module and high throughput is achieved.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: December 18, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Hiroshi Arima, Kousuke Yoshihara, Yuichi Yoshida, Yasushi Takiguchi, Taro Yamamoto
  • Patent number: 8330934
    Abstract: An exposure apparatus for emitting exposure light onto a substrate via a projection optical system and a liquid to expose the substrate includes a supply pipe which supplies the liquid; a recovery pipe which recovers the liquid; a connection pipe which connects the supply pipe and the recovery pipe; and a switching device which switches a flow path of the liquid so that when liquid supply is stopped, the liquid that has flowed into the supply pipe flows to the recovery pipe via the connection pipe. The apparatus may further include a temperature regulation apparatus connected to the supply pipe, which performs temperature regulation of the liquid supplied to the supply pipe, and has a rough temperature regulator which roughly regulates the temperature of the liquid, and a fine temperature regulator which is arranged between the rough temperature regulator and the supply pipe and performs fine regulation of this temperature.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: December 11, 2012
    Assignees: Nikon Corporation, Tokyo Electron Limited
    Inventors: Hiroyuki Nagasaka, Taro Yamamoto, Osamu Hirakawa
  • Publication number: 20120234362
    Abstract: A substrate cleaning method that includes: a step in which, while a substrate holder is being continuously rotated, a to-be-discharged position of the cleaning liquid on the substrate is changed to an eccentric position deviated from the central part of the substrate, and a gas is discharged from a gas nozzle to the central part of the substrate so as to form a dried area of the cleaning liquid under a condition in which a shortest distance between an edge of a cleaning liquid flow output from the cleaning-liquid nozzle and an edge of a gas flow output from the gas nozzle is set between 9 mm and 15 mm.
    Type: Application
    Filed: June 1, 2012
    Publication date: September 20, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kousuke Yoshihara, Yuichi Yoshida, Taro Yamamoto
  • Patent number: 8262300
    Abstract: A coating and developing apparatus develops a substrate of which surface is coated with resist and exposed to lights. The coating and developing apparatus includes a developing module; a cleaning module; and a transfer mechanism configured to transfer a substrate developed by the developing module to the cleaning module. The developing module includes an airtightly sealed processing vessel configured to form a processing atmosphere; a temperature control plate provided in the processing vessel and mounts thereon the substrate and cools the substrate; and an atmosphere gas supply unit configured to supply an atmosphere gas including mist of a developing solution to a surface of the substrate within the processing vessel. The cleaning module includes a mounting table configured to mount thereon the substrate; and a cleaning solution supply unit configured to supply a cleaning solution to the substrate mounted on the mounting table.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: September 11, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Yasushi Takiguchi, Taro Yamamoto, Hiroshi Arima, Kousuke Yoshihara, Yuichi Yoshida
  • Publication number: 20120183693
    Abstract: A coating film forming apparatus that holds a substrate upon a spin chuck and forms a coating film by supplying a chemical liquid upon a top surface of said substrate comprises: an outer cup provided detachably to surround the spin chuck; an inner cup provided detachably to surround a region underneath the substrate held upon the chuck; a cleaning nozzle configured to supply a cleaning liquid for cleaning a peripheral edge part of the substrate, such that the cleaning liquid is supplied to a peripheral part of a bottom surface of the substrate; a cutout part for nozzle mounting, the cutout part being provided to the inner cup to engage with the cleaning nozzle; and a cleaning liquid supply tube connected to the cleaning nozzle, the cleaning nozzle being detachable to the cutout part in a state in which the cleaning liquid supply tube is connected.
    Type: Application
    Filed: March 19, 2012
    Publication date: July 19, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Nobuhiro Ogata, Hiroichi Inada, Taro Yamamoto, Akihiro Fujimoto
  • Patent number: 8216389
    Abstract: A substrate cleaning method that includes: a step in which, while a substrate holder is being continuously rotated, a to-be-discharged position of the cleaning liquid on the substrate is changed to an eccentric position deviated from the central part of the substrate, and a gas is discharged from a gas nozzle to the central part of the substrate so as to form a dried area of the cleaning liquid under a condition in which a shortest distance between an edge of a cleaning liquid flow output from the cleaning-liquid nozzle and an edge of a gas flow output from the gas nozzle is set between 9 mm and 15 mm.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: July 10, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Kousuke Yoshihara, Yuichi Yoshida, Taro Yamamoto
  • Publication number: 20120156626
    Abstract: A coating and developing system for forming a resist film on a substrate by coating the substrate with a liquid resist and developing the resist film after the resist film has been processed by immersion exposure that forms a liquid layer on the surface of the substrate is capable of reducing difference in property among resist films formed on substrates. The coating and developing system includes: a cleaning unit; a carrying means; and a controller. A set time interval is determined such that the substrate is subjected to the immersion exposure process after contact angle drop rate at which contact angle between the cleaning liquid and a surface of the substrate drops has dropped from an initial level at the wetting time point when the surface of the substrate is wetted with the cleaning liquid to a level far lower than the initial level.
    Type: Application
    Filed: February 29, 2012
    Publication date: June 21, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Seiki ISHIDA, Taro Yamamoto
  • Patent number: 8186298
    Abstract: A coating film forming apparatus that holds a substrate upon a spin chuck and forms a coating film by supplying a chemical liquid upon a top surface of said substrate comprises: an outer cup provided detachably to surround the spin chuck; an inner cup provided detachably to surround a region underneath the substrate held upon the chuck; a cleaning nozzle configured to supply a cleaning liquid for cleaning a peripheral edge part of the substrate, such that the cleaning liquid is supplied to a peripheral part of a bottom surface of the substrate; a cutout part for nozzle mounting, the cutout part being provided to the inner cup to engage with the cleaning nozzle; and a cleaning liquid supply tube connected to the cleaning nozzle, the cleaning nozzle being detachable to the cutout part in a state in which the cleaning liquid supply tube is connected.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: May 29, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Nobuhiro Ogata, Hiroichi Inada, Taro Yamamoto, Akihiro Fujimoto
  • Patent number: 8171405
    Abstract: The present invention is intended to improve operability in page-by-page editing operation of a document file having multiple pages using a computer. A display processor displays multiple pages of the document file in list form on a display unit, selects an item to be displayed from a plurality of items contained in attribute information allocated to each page, and displays the attribute information relating to the item that has been selected in association with each page. An editing processor receives page selection operation and editing operation, executes editing process on a selected page, and updates the attribute information by rewriting an item associated with the editing process of the attribute information allocated to the selected page.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: May 1, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Taro Yamamoto
  • Patent number: 8154106
    Abstract: A coating and developing system for forming a resist film on a substrate by coating the substrate with a liquid resist and developing the resist film after the resist film has been processed by immersion exposure that forms a liquid layer on the surface of the substrate is capable of reducing difference in property among resist films formed on substrates. The coating and developing system includes: a cleaning unit for cleaning a surface of a substrate coated with a resist film; a carrying means for taking out the substrate from the cleaning unit and carrying the substrate to an exposure system that carries out an immersion exposure process; and a controller for controlling the carrying means such that a time interval between a wetting time point when the surface of the substrate is wetted with the cleaning liquid by the cleaning unit and a delivery time point when the substrate is delivered to the exposure system is equal to a predetermined set time interval.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: April 10, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Seiki Ishida, Taro Yamamoto
  • Patent number: 8133663
    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: Grant
    Filed: July 24, 2007
    Date of Patent: March 13, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Taro Yamamoto, Hitoshi Kosugi, Yoshiaki Yamada, Yasuhito Saiga
  • Patent number: 8111372
    Abstract: A coating film forming apparatus for immersion light exposure includes one or more coating units configured to apply a resist film or a resist film and an additional film onto a substrate, one or more thermally processing units configured to perform a thermal process, a defect eliciting unit configured to perform a process for eliciting a latent defect of a coating film at an edge portion of the substrate, a checking unit configured to check a state of the coating film after the process by the defect eliciting unit, a control section configured to use a check result obtained by the checking unit to make a judgment of the state of the coating film and permit transfer of the substrate to the light exposure apparatus, and a cleaning unit configured to perform cleaning on the substrate before the process by the defect eliciting unit.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: February 7, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Hideharu Kyouda, Junichi Kitano, Taro Yamamoto
  • Publication number: 20120006362
    Abstract: A substrate cleaning device and a substrate cleaning method reduces liquid drops remaining on a substrate to prevent the irregular heating of the substrate by a heating process due to liquid drops or water marks remaining on the substrate. A cleaning liquid is poured through a cleaning liquid pouring nozzle onto the surface of a substrate such that a region onto which the cleaning liquid is poured moves from a central part toward the circumference of the substrate. A gas is jetted radially outward at a region on the surface of the substrate behind a region onto which the cleaning liquid is poured with respect to the rotating direction of the substrate. The gas forces a liquid film of the cleaning liquid flowing on the surface of the substrate to flow in a circumferential direction and a radially outward direction.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Taro Yamamoto, Hideharu Kyouda, Tetsu Kawasaki, Satoru Shimura
  • Patent number: 8069816
    Abstract: A coating film processing method is used for processing a coating film formed on a surface of a substrate to prepare for an immersion light exposure process arranged to perform light exposure through a liquid. The method includes supplying a solvent-containing liquid comprising a combination of a solvent and a solvent-ability decreasing agent for decreasing solvent ability, or a diluted solvent, onto an edge portion of the coating film, thereby performing edge portion cutting; and supplying a cleaning liquid onto the edge portion of the coating film, thereby performing edge portion cleaning, subsequently to the edge portion cutting.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: December 6, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Taro Yamamoto, Kousuke Yoshihara
  • Patent number: 8037890
    Abstract: A substrate cleaning device and a substrate cleaning method reduces liquid drops remaining on a substrate to prevent the irregular heating of the substrate by a heating process due to liquid drops or water marks remaining on the substrate. A cleaning liquid is poured through a cleaning liquid pouring nozzle onto the surface of a substrate such that a region onto which the cleaning liquid is poured moves from a central part toward the circumference of the substrate. A gas is jetted radially outward at a region on the surface of the substrate behind a region onto which the cleaning liquid is poured with respect to the rotating direction of the substrate. The gas forces a liquid film of the cleaning liquid flowing on the surface of the substrate to flow in a circumferential direction and a radially outward direction.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: October 18, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Taro Yamamoto, Hideharu Kyouda, Tetsu Kawasaki, Satoru Shimura
  • Patent number: 8029624
    Abstract: A rinse method for rinsing a substrate having an exposure pattern thereon developed includes presetting conditions for a rinse process according to surface states of the substrate, measuring a surface state of the substrate, selecting a corresponding condition for the rinse process based on the measured surface state of the substrate, and performing the rinse process under the selected condition.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: October 4, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Kousuke Yoshihara, Junji Nakamura, Hirofumi Takeguchi, Taro Yamamoto
  • Patent number: 8026048
    Abstract: A developer nozzle is moved from a periphery of a wafer toward the central portion while an exposed substrate held at a spin chuck is being rotated about a vertical axis and while a developing solution is being discharged from the developer nozzle, and this way the developing solution is supplied to the surface of the wafer, the developer nozzle having a slit-like ejection port whose longitudinal direction is oriented to the direction perpendicular to the radial direction of the wafer. The movement speed of the nozzle is higher than a case where a nozzle with a small-diameter circular nozzle is used, and this enables a development time to be reduced. Further, the thickness of a developing solution on a substrate can be reduced, so that the developing solution can be saved.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: September 27, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Atsushi Ookouchi, Taro Yamamoto, Hirofumi Takeguchi, Hideharu Kyouda, Kousuke Yoshihara
  • Patent number: 8001983
    Abstract: A wafer W is held in a horizontal attitude within an airtight container 41 by a vacuum chuck 42 such that small gaps are formed between the wafer W and the inner surfaces of the airtight container 41. A cleaning liquid is supplied toward the center portion of a front surface of the wafer W through a fluid supply port 40 which is an end of a fluid supply path 5, and is discharged through a fluid discharge portion 44 arranged in the bottom portion of the airtight container 41 in a form of a groove running along a circle having its center located on the center axis of the wafer W. The cleaning liquid flows and spreads from the center portion of the wafer W toward the peripheral portion while removing particles adhered to the wafer W, and is discharged through the fluid discharge portion 44. This arrangement allows the particles to be uniformly and reliably removed without rotating the wafer W. The entire cleaning apparatus 4 has a small size.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: August 23, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Masahiro Fukuda, Taro Yamamoto