Patents by Inventor Kazunaga Ono

Kazunaga Ono 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: 11939665
    Abstract: A film thickness measurement apparatus includes: a stage that places a substrate having a film formed thereon and measures a thickness of the film in-situ in a film forming apparatus; a film thickness meter including a light emitter that emits light toward the substrate disposed on the stage and a light receiving sensor that receives the light reflected by the substrate for measuring the thickness of the film in-situ; a moving mechanism including a multi-joint arm that moves an irradiation point of the light on the substrate; a distance meter that measures a distance between the light receiving sensor and the irradiation point on the substrate; and a distance adjustor that adjusts the distance between the light receiving sensor and the irradiation point on the substrate.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: March 26, 2024
    Assignee: TOKYO ELECTRON LIMTED
    Inventors: Masato Shinada, Tamaki Takeyama, Kazunaga Ono, Naoyuki Suzuki, Hiroaki Chihaya, Einstein Noel Abarra
  • Publication number: 20240011148
    Abstract: There is provided a film forming position misalignment correction method comprising: replacing a shielding member; loading a substrate into a film forming module by a transfer mechanism and forming a film on the substrate; detecting an amount of film forming position misalignment by transferring the substrate on which the film has been formed to a film thickness measuring device; correcting a transfer position of the substrate for the transfer mechanism; and checking the correction by transferring the substrate used for measuring the amount of film forming position misalignment to the film forming module by the transfer mechanism for which the transfer position has been corrected to form a film and determining the amount of film forming position misalignment by measuring a film thickness of the formed film by the film thickness measuring device in the same manner.
    Type: Application
    Filed: June 22, 2023
    Publication date: January 11, 2024
    Inventors: Atsushi TAKEUCHI, Kazunaga Ono, Kanto Nakamura, Atsushi Gomi
  • Publication number: 20230011226
    Abstract: There is provided a film thickness measurement method which measures a film thickness of a specific film to be measured in a multilayer film in situ in a film formation system that forms the multilayer film on a substrate, the method comprising: regarding a plurality of films located under the film to be measured as one underlayer film, measuring a film thickness of the underlayer film, and deriving an optical constant of the underlayer film by spectroscopic interferometry; and after the film to be measured is formed, deriving a film thickness of the film to be measured by spectroscopic interferometry using the film thickness and the optical constant of the underlayer film.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 12, 2023
    Inventors: Kazunaga ONO, Kanto NAKAMURA, Toru KITADA, Atsushi GOMI
  • Patent number: 11404255
    Abstract: A sputtering method including: performing a pre-sputtering by emitting sputter particles from a target provided in a sputtering apparatus in a state where the target is shielded by a shielding portion of a shutter provided closed to the target to be capable of opening/closing the target; and, after the pre-sputtering, performing a main-sputtering by emitting the sputter particles from the target in a state where an opening of the shutter is aligned with the target thereby depositing the sputter particles on a substrate. When the pre-sputtering and the main-sputtering are repeatedly performed, a shutter position is changed during the pre-sputtering so as to change a position of the shielding portion aligned with the target.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: August 2, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kazunaga Ono, Atsushi Gomi, Tatsuo Hatano, Yasuhiro Otagiri, Tomoyuki Fujihara, Yuuki Motomura
  • Publication number: 20220098717
    Abstract: A film forming apparatus according to the present invention comprises: a processing chamber; a substrate holder for holding a substrate within the processing chamber; a target electrode, disposed above the substrate holder, for holding a metal target and supplying electrical power from a power source to the target; an oxidizing gas introduction mechanism for supplying an oxidizing gas to the substrate; and a gas supply unit for supplying an inert gas to the space where the target is disposed. Constituent metal is discharged from the target in the form of sputter particles, whereby a metal film is deposited on the substrate, and the metal film is oxidized by the oxidizing gas introduced by the oxidizing gas introduction mechanism, thereby forming a metal oxide film. When the oxidizing gas is introduced, the gas supply unit supplies the inert gas to the space where the target is disposed so that the pressure therein is positive with respect to the pressure in a processing space.
    Type: Application
    Filed: September 20, 2019
    Publication date: March 31, 2022
    Inventors: Kenichi IMAKITA, Kazunaga ONO, Toru KITADA, Keisuke SATO, Atsushi GOMI, Hiroyuki YOKOHARA, Hiroshi SONE
  • Publication number: 20210285096
    Abstract: A film thickness measurement apparatus includes: a stage that places a substrate having a film formed thereon and measures a thickness of the film in-situ in a film forming apparatus; a film thickness meter including a light emitter that emits light toward the substrate disposed on the stage and a light receiving sensor that receives the light reflected by the substrate for measuring the thickness of the film in-situ; a moving mechanism including a multi-joint arm that moves an irradiation point of the light on the substrate; a distance meter that measures a distance between the light receiving sensor and the irradiation point on the substrate; and a distance adjustor that adjusts the distance between the light receiving sensor and the irradiation point on the substrate.
    Type: Application
    Filed: February 24, 2021
    Publication date: September 16, 2021
    Inventors: Masato SHINADA, Tamaki TAKEYAMA, Kazunaga ONO, Naoyuki SUZUKI, Hiroaki CHIHAYA, Einstein Noel ABARRA
  • Publication number: 20210082675
    Abstract: A sputtering method including: performing a pre-sputtering by emitting sputter particles from a target provided in a sputtering apparatus in a state where the target is shielded by a shielding portion of a shutter provided closed to the target to be capable of opening/closing the target; and, after the pre-sputtering, performing a main-sputtering by emitting the sputter particles from the target in a state where an opening of the shutter is aligned with the target thereby depositing the sputter particles on a substrate. When the pre-sputtering and the main-sputtering are repeatedly performed, a shutter position is changed during the pre-sputtering so as to change a position of the shielding portion aligned with the target.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 18, 2021
    Inventors: Kazunaga ONO, Atsushi GOMI, Tatsuo HATANO, Yasuhiro OTAGIRI, Tomoyuki FUJIHARA, Yuuki MOTOMURA
  • Publication number: 20200123649
    Abstract: In an oxidation processing module, a stage on which a substrate having a metal film is mounted is provided and a cooling mechanism is provided to cool the stage to cool the substrate mounted on the stage to a temperature of 25° C. or lower. Further, a head unit has a facing surface disposed to face an upper surface of the stage and an oxidizing gas supply unit configured to supply oxidizing gas for oxidizing the metal film toward a gap between the facing surface and the upper surface of the stage, and a rotation driving unit is configured to rotate the head unit about a rotation axis intersecting with the upper surface of the stage.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 23, 2020
    Inventors: Kazunaga ONO, Atsushi GOMI, Kanto NAKAMURA
  • Publication number: 20160071707
    Abstract: A processing apparatus includes a processing chamber, a rotatable mounting table, a cooling mechanism and a driving mechanism. A sputtering target is provided in the processing chamber. The rotatable mounting table is provided in the processing chamber and configured to mount thereon an object to be processed. The cooling mechanism is configured to cool the mounting table. The driving mechanism is configured to change a relative position of the mounting table with respect to the cooling mechanism. The driving mechanism changes a conductivity of heat from the mounting table to the cooling mechanism at least by switching a first state in which the mounting table and the cooling mechanism are separated from each other and a second state in which the mounting table and the cooling mechanism become close to each other.
    Type: Application
    Filed: September 1, 2015
    Publication date: March 10, 2016
    Inventors: Shinji FURUKAWA, Hiroyuki TOSHIMA, Tooru KITADA, Kanto NAKAMURA, Kazunaga ONO
  • Publication number: 20150114835
    Abstract: A film forming apparatus includes a stage provided in the processing chamber; three or more targets uniformly arranged along a circle centering around a vertical axis line that passes through a center of the stage, each of the targets having a substantially rectangular shape; a shutter provided between the targets and the stage, the shutter including an opening which allows one of the targets to be selectively exposed to the stage; and a rotation shaft coupled to the shutter, the rotation shaft extending along the vertical axis line. A width of the opening in a tangent direction to the circle centering around the vertical axis line is set such that two adjacent targets in a circumferential direction of the circle among the targets are allowed to be partially and simultaneously exposed to the stage.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Atsushi GOMI, Shinji FURUKAWA, Kanto NAKAMURA, Kazunaga ONO
  • Publication number: 20050099111
    Abstract: A method for preparing a graphite nanofiber is herein provided, which comprises a raw gases are supplied on the surface of a substrate provided thereon with a catalyst layer for the growth of graphite nanofibers according to the CVD technique, wherein the method is characterized by forming a catalyst layer having a desired thickness and then forming, on the catalyst layer of the substrate, a graphite nanofiber whose overall thickness is controlled and which comprises a graphite nanofiber layer and a non-fibrous layer. The resulting graphite nanofibers can be used in an emitter or a field emission display element. The thickness of the catalyst layer formed on a substrate is controlled by the method and this in turn permits the control of the thickness of the non-fibrous layer formed on the catalyst layer and the control of the thickness of the graphite nanofibers likewise formed on the catalyst layer.
    Type: Application
    Filed: September 17, 2003
    Publication date: May 12, 2005
    Inventors: Masaaki Hirakawa, Osamu Miura, Hirohiko Murakami, Kazunaga Ono, Kenji Fujii, Kensuke Okasaka, Takaei Sasaki