Patents by Inventor Misako Saito

Misako Saito 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: 9960056
    Abstract: In order to remove a deposit adhered to the backside of the peripheral portion of a wafer, a cleaning gas containing carbon dioxide gas is set to a pressure that is slightly lower than the pressure corresponding to a vapor pressure line of carbon dioxide at a temperature in the nozzle, and a gas cluster of carbon dioxide is generated. A gas cluster of carbon dioxide generated under such a condition is in a state immediately prior to undergoing a phase change to a liquid and therefore is a gas cluster having a large cluster diameter and having molecules that are firmly solidified.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 1, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kazuya Dobashi, Kensuke Inai, Misako Saito
  • Patent number: 9881815
    Abstract: A substrate cleaning method for removing particles adhered to a substrate includes: acquiring particle information including diameters of the particles adhered to the substrate; controlling, based on the acquired particle information, a factor related to sizes of gas clusters having aggregates of atoms or molecules of a cleaning gas; ejecting the cleaning gas, at a higher pressure than a processing atmosphere where the substrate is provided, to the processing atmosphere and generating the gas clusters by adiabatic expansion; and removing the particles by irradiating the gas clusters in a perpendicular direction to a surface of the substrate. As a result, even if recesses for a circuit pattern are formed on the surface of the substrate, the particles in the recesses can be removed at a high removal rate.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 30, 2018
    Assignees: Tokyo Electron Limited, Kyoto University
    Inventors: Jiro Matsuo, Toshio Seki, Takaaki Aoki, Kazuya Dobashi, Kensuke Inai, Misako Saito
  • Patent number: 9875915
    Abstract: Disclosed is a method for removing metal contamination present on an inner wall of a fluorine-based resin used in a chemical liquid supply line that supplies a chemical liquid to a workpiece. The method includes bringing some or all of a cleaning material reactive to a metal forming the metal contamination into a gaseous state; supplying the gaseous cleaning material to the chemical liquid supply line; and removing the metal contamination by reacting the gaseous cleaning material with the metal contamination present on the inner wall of the fluorine-based resin used in the chemical liquid supply line.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: January 23, 2018
    Assignee: Tokyo Electron Limited
    Inventors: Yudai Ito, Kazuya Dobashi, Misako Saito, Shigeyoshi Kojima, Hideki Nishimura
  • Publication number: 20170032984
    Abstract: Disclosed is a method of performing a liquid processing on a workpiece by a liquid containing charged minute metal-containing impurities, using a liquid processing apparatus including: a holding unit configured to hold the workpiece; and a liquid supplying mechanism configured to supply a liquid to the workpiece held by the holding unit. The method includes: removing the metal-containing impurities contained in the liquid while supplying the liquid to the workpiece held by the holding unit; and/or controlling charging of the workpiece held by the holding unit to suppress the metal-containing impurities from being attached to the workpiece by an electrostatic force.
    Type: Application
    Filed: July 26, 2016
    Publication date: February 2, 2017
    Inventors: Yudai ITO, Kazuya DOBASHI, Misako SAITO
  • Publication number: 20160175898
    Abstract: Disclosed is a method for removing metal contamination present on an inner wall of a fluorine-based resin used in a chemical liquid supply line that supplies a chemical liquid to a workpiece. The method includes bringing some or all of a cleaning material reactive to a metal forming the metal contamination into a gaseous state; supplying the gaseous cleaning material to the chemical liquid supply line; and removing the metal contamination by reacting the gaseous cleaning material with the metal contamination present on the inner wall of the fluorine-based resin used in the chemical liquid supply line.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 23, 2016
    Inventors: Yudai Ito, Kazuya Dobashi, Misako Saito, Shigeyoshi Kojima, Hideki Nishimura
  • Publication number: 20150255316
    Abstract: In order to remove a deposit adhered to the backside of the peripheral portion of a wafer, a cleaning gas containing carbon dioxide gas is set to a pressure that is slightly lower than the pressure corresponding to a vapor pressure line of carbon dioxide at a temperature in the nozzle, and a gas cluster of carbon dioxide is generated. A gas cluster of carbon dioxide generated under such a condition is in a state immediately prior to undergoing a phase change to a liquid and therefore is a gas cluster having a large cluster diameter and having molecules that are firmly solidified.
    Type: Application
    Filed: August 28, 2013
    Publication date: September 10, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuya Dobashi, Kensuke Inai, Misako Saito
  • Publication number: 20150007858
    Abstract: A substrate cleaning method for removing particles adhered to a substrate includes: acquiring particle information including diameters of the particles adhered to the substrate; controlling, based on the acquired particle information, a factor related to sizes of gas clusters having aggregates of atoms or molecules of a cleaning gas; ejecting the cleaning gas, at a higher pressure than a processing atmosphere where the substrate is provided, to the processing atmosphere and generating the gas clusters by adiabatic expansion; and removing the particles by irradiating the gas clusters in a perpendicular direction to a surface of the substrate. As a result, even if recesses for a circuit pattern are formed on the surface of the substrate, the particles in the recesses can be removed at a high removal rate.
    Type: Application
    Filed: February 25, 2013
    Publication date: January 8, 2015
    Inventors: Jiro Matsuo, Toshio Seki, Takaaki Aoki, Kazuya Dobashi, Kensuke Inai, Misako Saito
  • Patent number: 8911955
    Abstract: A virus detection device includes a diffusion unit configured to diffuse a virus in a gas as an inspection target into an aqueous solution containing a fluorescent antibody specifically adsorptive to the virus by bringing the gas into contact with the aqueous solution and configured to adsorb the fluorescent antibody to the virus in the gas; an atomization unit configured to atomize the aqueous solution and generate a mist group of the aqueous solution in which the gas is diffused; a fluorescence measuring unit configured to measure a fluorescence intensity of the mist group; and an air current generator configured to form an air current flowing toward the fluorescence measuring unit from the atomization unit.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: December 16, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Akitake Tamura, Kaoru Fujihara, Misako Saito
  • Publication number: 20140299870
    Abstract: A method for manufacturing an organic transistor includes laminating a base insulating layer on a substrate; forming source/drain electrodes on the base insulating layer; laminating an organic semiconductor layer to cover the electrodes and be in contact with the base insulating layer; laminating a gate insulating layer on the organic semiconductor layer; forming a gate electrode on the gate insulating layer; and performing, before the organic semiconductor layer is formed, surface treatment on the surface of the base insulating layer which is in contact with the organic semiconductor layer. The surface treatment is performed such that, when W1 represents the work of adhesion between two laminated layers using the same material of the organic semiconductor layer, the work of adhesion W2 between the base insulating layer and the organic semiconductor layer when the organic semiconductor layer is formed on the surface-treated base insulating layer satisfies the relationship W1?W2.
    Type: Application
    Filed: November 14, 2012
    Publication date: October 9, 2014
    Inventors: Takashi Fuse, Misako Saito, Hiroshi Sato
  • Publication number: 20130244226
    Abstract: A virus detection device includes a diffusion unit configured to diffuse a virus in a gas as an inspection target into an aqueous solution containing a fluorescent antibody specifically adsorptive to the virus by bringing the gas into contact with the aqueous solution and configured to adsorb the fluorescent antibody to the virus in the gas; an atomization unit configured to atomize the aqueous solution and generate a mist group of the aqueous solution in which the gas is diffused; a fluorescence measuring unit configured to measure a fluorescence intensity of the mist group; and an air current generator configured to form an air current flowing toward the fluorescence measuring unit from the atomization unit.
    Type: Application
    Filed: April 26, 2013
    Publication date: September 19, 2013
    Applicant: Tokyo Electron Limited
    Inventors: Akitake Tamura, Kaoru Fujihara, Misako Saito
  • Publication number: 20130209666
    Abstract: An evaporating method is capable of forming a thin film on a substrate by a vapor deposition process. The evaporating method includes measuring a vapor concentration of a material gas discharged to the substrate by a detector; and controlling a film forming condition based on a measurement result from the detector.
    Type: Application
    Filed: August 24, 2011
    Publication date: August 15, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tomiko Kamada, Hiraku Ishikawa, Yuji Ono, Teruyuki Hayashi, Takashi Fuse, Misako Saito, Toyohiro Kamada, Shimon Otsuki
  • Patent number: 8268185
    Abstract: A method of analyzing a quartz member includes the step of supplying an etchant to the quartz member so as to etch the quartz member. The method also includes analyzing the etchant used in the supplying step. The etchant is supplied to a concave etchant receiving portion that is formed in the quartz member prior to the supplying step and has an inner wall thereof formed of the quartz member.
    Type: Grant
    Filed: May 28, 2007
    Date of Patent: September 18, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Kazuya Dobashi, Teruyuki Hayashi, Kohei Tsugita, Misako Saito
  • Publication number: 20120094014
    Abstract: There is provided a vapor deposition apparatus and a vapor deposition method capable of efficiently sublimating/melting a granular organic material with high mobility. The vapor deposition apparatus for forming a thin film on a substrate by vapor deposition includes a depressurizable material supply apparatus configured to supply a material gas, and a film forming apparatus configured to form a thin film on the substrate. The material supply apparatus includes a quantity control unit configured to control a quantity of a material, and a material gas generating unit configured to vaporize the material supplied from the quantity control unit.
    Type: Application
    Filed: April 21, 2010
    Publication date: April 19, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yuji Ono, Tomohiko Edura, Teruyuki Hayashi, Akitake Tamura, Misako Saito, Hirotaka Kuwada, Shimon Otsuki
  • Publication number: 20120031339
    Abstract: There is provided a deposition head capable of discharging a material gas having a uniform flow rate and equi-thermal property from each component in a large-sized substrate as well as a conventional small-sized one for forming a uniform thin film. A deposition apparatus including the deposition head is also provided. The deposition head is provided within a deposition apparatus for forming a thin film on a substrate and configured to discharge a material gas toward the substrate. The deposition head includes an outer casing, and an inner casing provided within the outer casing and into which the material gas is introduced. In the inner casing, an opening configured to discharge the material gas toward the substrate is formed, and a heater configured to heat the material gas is provided at an outer surface of the outer casing or in a space between the outer casing and the inner casing.
    Type: Application
    Filed: April 2, 2010
    Publication date: February 9, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yuji Ono, Tomohiko Edura, Teruyuki Hayashi, Akitake Tamura, Misako Saito
  • Patent number: 8040504
    Abstract: Provided is a method and apparatus for inspecting a defect of a shape formed on a substrate. Primary inspection is sequentially performed on specific patterns in a plurality of divided regions of the substrate by using an optical method, and one or more regions on which secondary inspection is to be performed are selected from the regions. One or more defects are detected by performing the secondary inspection using an electron beam on the selected regions.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: October 18, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Misako Saito, Teruyuki Hayashi, Kaoru Fujiwara
  • Patent number: 7993458
    Abstract: A gas exhaust unit evacuates the inside of a vacuum transfer chamber at a constant exhaust rate. An gas exhaust valve is kept normally open, and a purge gas (N2 gas) is supplied from a purge gas supply source into the vacuum transfer chamber via a mass flow controller (MFC) and an opening/closing valve. A main control unit controls a pressure in the vacuum transfer chamber to be within a specified range through a flow rate set value for the MFC while monitoring a pressure in the vacuum transfer chamber via a vacuum gauge. The main control unit determines occurrence of abnormality when the pressure exceeds a specified upper limit and then takes such actions as changing a flow rate set value for the MFC, giving an alarm and stopping the operation of a vacuum processing apparatus.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 9, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Masaki Kondo, Teruyuki Hayashi, Misako Saito
  • Patent number: 7946152
    Abstract: In a measuring apparatus, an atmosphere to be inspected taken out from a space to be inspected in a processing system is analyzed for organic gas concentration. The apparatus is provided with a collector having an approach connected to the space to be inspected. The collector is connected to a gas exhaust system and an adsorption material for preparing a captured organic gas is held in the collector. A temperature control mechanism including a heater controls the adsorption/desorption of organic gas through temperature control of the adsorption material. A carrier gas is supplied from a carrier gas supplying system in order to transfer the desorbed gas taken from the captured organic gas and the concentration of organic gas in the carrier gas transferring the desorbed gas is determined in a concentration measuring unit.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: May 24, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Misako Saito, Teruyuki Hayashi
  • Patent number: 7883582
    Abstract: A gas exhaust unit evacuates the inside of a vacuum transfer chamber at a constant exhaust rate. An gas exhaust valve is kept normally open, and a purge gas (N2 gas) is supplied from a purge gas supply source into the vacuum transfer chamber via a mass flow controller (MFC) and an opening/closing valve. A main control unit controls a pressure in the vacuum transfer chamber to be within a specified range through a flow rate set value for the MFC while monitoring a pressure in the vacuum transfer chamber via a vacuum gauge. The main control unit determines occurrence of abnormality when the pressure exceeds a specified upper limit and then takes such actions as changing a flow rate set value for the MFC, giving an alarm and stopping the operation of a vacuum processing apparatus.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: February 8, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Masaki Kondo, Teruyuki Hayashi, Misako Saito
  • Publication number: 20100245812
    Abstract: Provided is a method and apparatus for inspecting a defect of a shape formed on a substrate. Primary inspection is sequentially performed on specific patterns in a plurality of divided regions of the substrate by using an optical method, and one or more regions on which secondary inspection is to be performed are selected from the regions. One or more defects are detected by performing the secondary inspection using an electron beam on the selected regions.
    Type: Application
    Filed: August 7, 2007
    Publication date: September 30, 2010
    Applicant: Tokyo Electron Limited
    Inventors: Misako Saito, Teruyuki Hayashi, Kaoru Fujiwara
  • Publication number: 20090206255
    Abstract: Provided is a substrate inspection apparatus for inspecting defects of a pattern formed on a laminated structure on a substrate. The laminated structure includes a first and a second layer sequentially formed on the substrate, which have different compositions from each other. The substrate inspection apparatus includes: an electron emission unit for irradiating primary electrons onto the substrate; an electron detection unit for detecting secondary electrons generated by irradiating the primary electrons; a data processing unit for processing data of the secondary electrons detected by the electron detection unit; and a voltage control unit for controlling an acceleration voltage of the primary electrons. The voltage control unit controls the acceleration voltage such that the primary electrons irradiated to the exposed second layer arrive at the inside of the first layer or the second layer other than near an interface of the first layer and the second layer.
    Type: Application
    Filed: January 25, 2007
    Publication date: August 20, 2009
    Applicant: Tokyo Electron Limited
    Inventors: Misako Saito, Teruyuki Hayashi