Patents by Inventor Daisuke Saiki

Daisuke Saiki 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: 12569887
    Abstract: A substrate processing apparatus includes a support unit, a supply unit, an annular member, a rotation unit, a cover member, and an annular flow regulation member disposed above the cover member. The annular member includes an inclined surface inclined downward toward a center of the annular member in a radial direction. The flow regulation member includes a base portion and a protrusion which faces a circumferential portion of the substrate supported on the support unit and protrudes from the base portion toward the circumferential portion of the substrate. The protrusion overlaps the support unit when viewed in a vertical direction. A lower surface of the protrusion is positioned above an upper surface of the substrate supported on the support unit and positioned below an upper surface of the annular member. An inner circumferential surface of the protrusion is inclined radially outward from an upper side to a lower side.
    Type: Grant
    Filed: January 11, 2024
    Date of Patent: March 10, 2026
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Takafumi Kinoshita, Yuki Ito, Daisuke Saiki, Tomoyuki Hashimoto, Yoshifumi Amano, Kazuhiro Aiura, Akira Fujita, Shuhei Takahashi
  • Patent number: 12170209
    Abstract: A substrate processing apparatus includes: at least one processing part for etching a polysilicon film or an amorphous silicon film formed on a substrate using an alkaline chemical liquid; a reservoir configured to recover and store the chemical liquid used in the at least one processing part; processing lines configured to supply the chemical liquid stored in the reservoir to the at least one processing part; a circulation line configured to take out the chemical liquid from the reservoir and to return the same to the reservoir; and a first gas supply line connected to the circulation line and configured to supply an inert gas to the circulation line. The circulation line includes an ejection port configured to eject a mixed fluid of the inert gas supplied by the first gas supply line and the chemical liquid taken out from the reservoir into the chemical liquid stored in the reservoir.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: December 17, 2024
    Assignee: Tokyo Electron Limited
    Inventors: Takashi Yabuta, Hidetoshi Nakao, Masatoshi Kasahara, Daisuke Saiki
  • Publication number: 20240238848
    Abstract: A substrate processing apparatus includes a support unit, a supply unit, an annular member, a rotation unit, a cover member, and an annular flow regulation member disposed above the cover member. The annular member includes an inclined surface inclined downward toward a center of the annular member in a radial direction. The flow regulation member includes a base portion and a protrusion which faces a circumferential portion of the substrate supported on the support unit and protrudes from the base portion toward the circumferential portion of the substrate. The protrusion overlaps the support unit when viewed in a vertical direction. A lower surface of the protrusion is positioned above an upper surface of the substrate supported on the support unit and positioned below an upper surface of the annular member. An inner circumferential surface of the protrusion is inclined radially outward from an upper side to a lower side.
    Type: Application
    Filed: January 11, 2024
    Publication date: July 18, 2024
    Inventors: Takafumi KINOSHITA, Yuki ITO, Daisuke SAIKI, Tomoyuki HASHIMOTO, Yoshifumi AMANO, Kazuhiro AIURA, Akira FUJITA, Shuhei TAKAHASHI
  • Publication number: 20240153756
    Abstract: A substrate processing method includes a first process of supplying an etching liquid to a peripheral portion of a substrate while rotating the substrate having a metal polycrystalline film formed on a front surface thereof; a second process of supplying a rinse liquid to a portion of the substrate closer to a center side of the substrate than a supply position of the etching liquid in the first process while rotating the substrate; a third process of supplying the etching liquid to the peripheral portion of the substrate while rotating the substrate; a fourth process of supplying the rinse liquid to a portion of the substrate closer to the center side of the substrate than a supply position of the etching liquid in the third process while rotating the substrate; and a fifth process of drying the substrate after the fourth process.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Inventors: Akira Fujita, Kyosei Goto, Hiroki Aso, Daisuke Saiki
  • Patent number: 11908680
    Abstract: A substrate processing method includes a first process of supplying an etching liquid to a peripheral portion of a substrate while rotating the substrate having a metal polycrystalline film formed on a front surface thereof; a second process of supplying a rinse liquid to a portion of the substrate closer to a center side of the substrate than a supply position of the etching liquid in the first process while rotating the substrate; a third process of supplying the etching liquid to the peripheral portion of the substrate while rotating the substrate; a fourth process of supplying the rinse liquid to a portion of the substrate closer to the center side of the substrate than a supply position of the etching liquid in the third process while rotating the substrate; and a fifth process of drying the substrate after the fourth process.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: February 20, 2024
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akira Fujita, Kyosei Goto, Hiroki Aso, Daisuke Saiki
  • Publication number: 20220199400
    Abstract: A substrate processing method includes a first process of supplying an etching liquid to a peripheral portion of a substrate while rotating the substrate having a metal polycrystalline film formed on a front surface thereof; a second process of supplying a rinse liquid to a portion of the substrate closer to a center side of the substrate than a supply position of the etching liquid in the first process while rotating the substrate; a third process of supplying the etching liquid to the peripheral portion of the substrate while rotating the substrate; a fourth process of supplying the rinse liquid to a portion of the substrate closer to the center side of the substrate than a supply position of the etching liquid in the third process while rotating the substrate; and a fifth process of drying the substrate after the fourth process.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 23, 2022
    Inventors: Akira Fujita, Kyosei Goto, Hiroki Aso, Daisuke Saiki
  • Publication number: 20220037167
    Abstract: A substrate processing apparatus includes: at least one processing part for etching a polysilicon film or an amorphous silicon film formed on a substrate using an alkaline chemical liquid; a reservoir configured to recover and store the chemical liquid used in the at least one processing part; processing lines configured to supply the chemical liquid stored in the reservoir to the at least one processing part; a circulation line configured to take out the chemical liquid from the reservoir and to return the same to the reservoir; and a first gas supply line connected to the circulation line and configured to supply an inert gas to the circulation line. The circulation line includes an ejection port configured to eject a mixed fluid of the inert gas supplied by the first gas supply line and the chemical liquid taken out from the reservoir into the chemical liquid stored in the reservoir.
    Type: Application
    Filed: July 26, 2021
    Publication date: February 3, 2022
    Inventors: Takashi YABUTA, Hidetoshi NAKAO, Masatoshi KASAHARA, Daisuke SAIKI
  • Patent number: 10236192
    Abstract: A liquid processing apparatus of the present disclosure holds and rotate a substrate in a substrate holding unit, ejects an etching liquid while moving a main nozzle of a main nozzle unit between a first position where the etching liquid reaches a center of the substrate and a second position closer to a peripheral side of the substrate than the first position, and then, ejects the etching liquid to the substrate from a sub nozzle provided at a third position closer to the peripheral side of the substrate than the first position at an ejection flow rate higher than that from the main nozzle.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: March 19, 2019
    Assignee: Tokyo Electron Limited
    Inventors: Jun Nonaka, Shogo Mizota, Tatsuya Nagamatsu, Daisuke Saiki, Kazuhiro Teraoka, Takashi Yabuta
  • Patent number: 9862007
    Abstract: Disclosed are a substrate liquid processing apparatus and method for performing a liquid processing on a substrate using a processing liquid, and a computer-readable recording medium with a substrate liquid processing program recorded therein. In the method, a first chemical liquid supply step is performed to supply a first chemical liquid from a first chemical liquid supply unit to a processing liquid storage unit, a first chemical liquid purifying step is performed to purify the first chemical liquid in a chemical liquid purifying unit, a second chemical liquid supply step is performed to supply a second chemical liquid from a second chemical liquid supply unit to the processing liquid storage unit, and a processing liquid supply step is performed to supply the processing liquid obtained by mixing the first and second chemical liquids from the processing liquid supply unit to substrate liquid processing units.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: January 9, 2018
    Assignee: Tokyo Electron Limited
    Inventors: Daisuke Saiki, Shogo Mizota, Takashi Yabuta, Jun Nonaka, Tatsuya Nagamatsu, Koji Tanaka, Tomiyasu Maezono
  • Patent number: 9192878
    Abstract: A liquid processing apparatus and a chemical liquid collecting method can suppress corrosion of wirings formed on a substrate. The liquid processing apparatus includes a processing unit configured to perform a liquid process by supplying a chemical liquid to a substrate; a collecting line configured to collect the chemical liquid supplied to the processing unit; a supply line configured to supply the collected chemical liquid to the processing unit; and a gas supply unit configured to supply an inert gas into the collecting line.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: November 24, 2015
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shogo Mizota, Takashi Yabuta, Tatsuya Nagamatsu, Daisuke Saiki
  • Publication number: 20150273538
    Abstract: Disclosed are a substrate liquid processing apparatus and method for performing a liquid processing on a substrate using a processing liquid, and a computer-readable recording medium with a substrate liquid processing program recorded therein. In the method, a first chemical liquid supply step is performed to supply a first chemical liquid from a first chemical liquid supply unit to a processing liquid storage unit, a first chemical liquid purifying step is performed to purify the first chemical liquid in a chemical liquid purifying unit, a second chemical liquid supply step is performed to supply a second chemical liquid from a second chemical liquid supply unit to the processing liquid storage unit, and a processing liquid supply step is performed to supply the processing liquid obtained by mixing the first and second chemical liquids from the processing liquid supply unit to substrate liquid processing units.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Inventors: Daisuke Saiki, Shogo Mizota, Takashi Yabuta, Jun Nonaka, Tatsuya Nagamatsu, Koji Tanaka, Tomiyasu Maezono
  • Publication number: 20150147888
    Abstract: A liquid processing apparatus of the present disclosure holds and rotate a substrate in a substrate holding unit, ejects an etching liquid while moving a main nozzle of a main nozzle unit between a first position where the etching liquid reaches a center of the substrate and a second position closer to a peripheral side of the substrate than the first position, and then, ejects the etching liquid to the substrate from a sub nozzle provided at a third position closer to the peripheral side of the substrate than the first position at an ejection flow rate higher than that from the main nozzle.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Jun Nonaka, Shogo Mizota, Tatsuya Nagamatsu, Daisuke Saiki, Kazuhiro Teraoka, Takashi Yabuta
  • Publication number: 20140377463
    Abstract: Disclosed is a liquid processing method which may de-electrify the surface of a hydrophobized substrate. A substrate electrified according to a liquid processing is de-electrified by supplying a hydrophobizing liquid to a surface of the substrate subjected to the liquid processing while rotating the substrate, and performing rinsing by supplying an alkaline rinsing liquid to the hydrophobized surface of the substrate.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 25, 2014
    Inventors: Yosuke Hachiya, Hisashi Kawano, Mitsunori Nakamori, Jun Nonaka, Shogo Mizota, Tatsuya Nagamatsu, Daisuke Saiki, Kazuhiro Teraoka, Takashi Yabuta
  • Publication number: 20140182455
    Abstract: A liquid processing apparatus and a chemical liquid collecting method can suppress corrosion of wirings formed on a substrate. The liquid processing apparatus includes a processing unit configured to perform a liquid process by supplying a chemical liquid to a substrate; a collecting line configured to collect the chemical liquid supplied to the processing unit; a supply line configured to supply the collected chemical liquid to the processing unit; and a gas supply unit configured to supply an inert gas into the collecting line.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicant: Tokyo Electron Limited
    Inventors: Shogo Mizota, Takashi Yabuta, Tatsuya Nagamatsu, Daisuke Saiki