Patents by Inventor Kazuki Moyama

Kazuki Moyama 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).

  • Publication number: 20150075566
    Abstract: A method of controlling adherence of microparticles to a substrate to be processed includes applying voltage to an electrostatic chuck configured to electrostatically attract the substrate to be processed in a processing container before the substrate to be processed is carried into the processing container; and, after the applying of voltage to the electrostatic chuck, carrying the substrate to be processed into the processing container. Further, in the applying of voltage to the electrostatic chuck, the voltage is applied to the electrostatic chuck to reduce a potential difference between a focus ring and the substrate to be processed, the focus ring being provided to surround the electrostatic chuck.
    Type: Application
    Filed: November 7, 2012
    Publication date: March 19, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Takehiro Tanikawa, Kazuki Moyama
  • Patent number: 8974628
    Abstract: An optical monitor device of the present microwave plasma etching device has: a monitor head located in a position more radially inward than the edge of a semiconductor wafer W mounted on a susceptor, more radially outward than a coaxial pipe, and above a cover plate; an optical waveguide for monitoring provided vertically below the monitor head, and longitudinally traversing the cooling plate, a dielectric plate, and a dielectric window; and a monitor main body optically connected to the monitor head via an optical fiber.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: March 10, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Toshihisa Nozawa, Takahiro Senda, Shinya Nishimoto, Munetaka Yamagami, Kazuki Moyama
  • Publication number: 20140312767
    Abstract: A dielectric window for a plasma treatment device for a plasma treatment device that uses microwaves as a plasma source. The dielectric window is circular-plate-shaped and allows microwaves to propagate. The dielectric window has a recess that has an opening on the lower-surface side and that indents in the plate thickness direction of the dielectric window, and is provided to the lower surface at which plasma is generated when the dielectric window is provided to the plasma treatment device. The recess has a bottom surface extending in the direction perpendicular to the plate thickness direction, and a side surface extending in the plate thickness direction from the circumferential edge of the bottom surface toward the opening of the recess. In addition, an inclined surface extends at an incline relative to the plate thickness direction from the opening-side circumferential edge of the side surface toward the opening of the recess.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 23, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Caizhong Tian, Naoki Matsumoto, Koji Koyama, Naoki Mihara, Kazuki Takahashi, Jun Yoshikawa, Kazuki Moyama, Takehiro Tanikawa
  • Patent number: 8841545
    Abstract: Disclosed is a solar cell comprising a solar cell semiconductor thin film formed on a base, a transparent conductive film formed on the semiconductor thin film, and a nitride-containing moisture diffusion-preventing film which covers the upper surface of the transparent conductive film. The moisture diffusion-preventing film is preferably composed of at least a silicon nitride film or a silicon carbide nitride (SiCN) film.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: September 23, 2014
    Assignees: Tohoku University, Tokyo Electron Limited
    Inventors: Yoshihide Wakayama, Kazuki Moyama, Tadahiro Ohmi, Akinobu Teramoto
  • Publication number: 20140166205
    Abstract: A process monitoring device 11 includes a light source unit that outputs light; a light detection unit that detects an intensity of light; a first optical path 21 that guides the light outputted from the light source unit to a wafer W and guides reflection light from the wafer W to the light detection unit; a second optical path that has a light propagation characteristic equivalent to that of the first optical path 21 and guides the light outputted from the light source unit to the light detection unit without allowing the light to pass the wafer W; and a controller 17 that corrects intensity information of the light detected by the light detection unit via the first optical path 21 based on intensity information of the light detected by the light detection unit via the second optical path, and analyzes a structure of the wafer W.
    Type: Application
    Filed: April 6, 2012
    Publication date: June 19, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Caizhong Tian, Toshihisa Nozawa, Kazuki Moyama, Takahiro Senda, Kazuyuki Kato, Munetaka Yamagami
  • Publication number: 20130302992
    Abstract: An apparatus for plasma treatment contains a process vessel provided with a mounting table for mounting a substrate, a first gas supplying unit configured to supply a first gas into the process vessel, a first plasma generating unit configured to convert at least a part of the first gas to a first plasma, a second gas supplying unit configured to supply a second gas into the process vessel, and a second plasma generating unit configured to convert at least a part of the second gas to a second plasma. A height of ea an inlet of the second gas from the mounting table is lower than a height of an inlet of the first gas from the mounting table.
    Type: Application
    Filed: November 16, 2011
    Publication date: November 14, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Toshihisa Nozawa, Caizhong Tian, Masaru Sasaki, Naoki Mihara, Naoki Matsumoto, Kazuki Moyama, Jun Yoshikawa
  • Publication number: 20130180660
    Abstract: [Problem] To carry out high accuracy optical monitoring of the surface of a substrate to be treated inside a treatment vessel using non-coherent monitor light having a wide wavelength range, without affecting the uniformity of the electromagnetic radiation from a planar slot antenna. [Solution] The optical monitor device 100 of the present microwave plasma etching device has: a monitor head 102 located in a position more radially inward than the edge of a semiconductor wafer W mounted on a susceptor 12, more radially outward than a coaxial pipe 66, and above a cover plate 72; an optical waveguide 104 for monitoring provided vertically below the monitor head 102, and longitudinally traversing the cooling plate 72, a dielectric plate 54, and a dielectric window 52; and a monitor main body optically connected to the monitor head 102 via an optical fiber 106.
    Type: Application
    Filed: August 24, 2011
    Publication date: July 18, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Toshihisa Nozawa, Takahiro Senda, Shinya Nishimoto, Munetaka Yamagami, Kazuki Moyama
  • Publication number: 20130029494
    Abstract: Provided is a plasma etching method increasing the selectivity of a silicon nitride film in relation to the silicon oxide film or silicon functioning as a base. In a plasma etching method setting a pressure in a processing container as a predetermined level by exhausting a processing gas while supplying the processing gas into the processing container, generating plasma by supplying external energy to the processing container, and setting a bias applied to a holding stage holding a substrate in the processing container as predetermined value to selectively etch the silicon nitride film with respect to a silicon and/or silicon oxide film, the processing gas includes a plasma excitation gas, a CHxFy gas, and at least one oxidizing gas selected from the group consisting of O2, CO2, CO, and a flow rate of the oxidizing gas with respect to the CHxFy gas is set to be 4/9 or greater.
    Type: Application
    Filed: March 3, 2011
    Publication date: January 31, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Masaru Sasaki, Kazuki Moyama, Masaki Inoue, Yoko Noto
  • Publication number: 20130008607
    Abstract: An antenna, a dielectric window, a plasma processing apparatus and a plasma processing method are capable of improving uniformity of a substrate surface processing amount in the surface of the substrate. The antenna includes the dielectric window 16; and a slot plate 20, provided on one side of the dielectric window 16, having a plurality of slots 133. The dielectric window 16 has a flat surface 146 surrounded by a ring-shaped first recess; and a plurality of second recesses 153 formed on the flat surface 146 so as to surround a center of the flat surface 146. Here, the flat surface 146 is formed on the other side of the dielectric window 16. When viewed from a thickness direction of the slot plate, a center of each second recess 153 is located within each slot 133 of the slot plate.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Naoki MATSUMOTO, Wataru YOSHIKAWA, Jun YOSHIKAWA, Kazuki MOYAMA, Kiyotaka ISHIBASHI, Osamu MORITA, Takehiro TANIKAWA
  • Patent number: 8328999
    Abstract: A material having a low work function is quickly inserted near an interface between an organic layer and a cathode. A sputtering apparatus (Sp) includes a target material formed of silver (Ag), a dispenser formed outside a processing container and evaporating cesium (Cs) having a lower work function than silver (Ag) by heating the cesium (Cs), a first gas supply pipe communicating with the dispenser to transfer evaporated cesium (Cs) to the processing container by using argon gas as a carrier gas, and a high frequency power supply source supplying high frequency power to the processing container. A controller generates plasma by exciting the argon gas by using energy of the high frequency power, and while forming a metal electrode by using an silver (Ag) atom, wherein the Ag atom is generated from a the target material by using the generated plasma, controls a ratio of the cesium (Cs) mixed with the metal electrode.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: December 11, 2012
    Assignee: Tokyo Electron Limited
    Inventor: Kazuki Moyama
  • Publication number: 20120267048
    Abstract: A plasma processing apparatus includes a processing chamber, a stage, a dielectric member, a microwave introduction device, an injector, and an electric field shield. The processing chamber has a processing space therein. The stage is provided within the processing chamber. The dielectric member has a through hole and is provided to face the stage. The microwave introduction device is configured to introduce microwave into the processing space via the dielectric member. The injector has at least one through hole and is made of a dielectric material, e.g., a bulk dielectric material. The injector is provided within the dielectric member. The injector and the through hole of the dielectric member form a path for supplying a processing gas into the processing space. The electric field shield encloses the injector.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 25, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuki Moyama, Kiyotaka Ishibashi, Osamu Morita, Takehiro Tanikawa, Naoki Matsumoto, Naoki Mihara, Wataru Yoshikawa
  • Publication number: 20120211165
    Abstract: A sample table which stably holds a semiconductor wafer by maintaining smoothness of a contact surface via a lapping process and forming the contact surface to have an approximate recess shape, and a microwave plasma processing apparatus including the sample table.
    Type: Application
    Filed: September 29, 2010
    Publication date: August 23, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Wataru Yoshikawa, Kazuki Moyama, Nobuyuki Okayama, Kenji Sudou, Yasuhiro Otsuka
  • Publication number: 20100326511
    Abstract: Disclosed is a solar cell comprising a solar cell semiconductor thin film formed on a base, a transparent conductive film formed on the semiconductor thin film, and a nitride-containing moisture diffusion-preventing film which covers the upper surface of the transparent conductive film. The moisture diffusion-preventing film is preferably composed of at least a silicon nitride film or a silicon carbide nitride (SiCN) film.
    Type: Application
    Filed: February 10, 2009
    Publication date: December 30, 2010
    Applicants: TOKYO ELECTRON LIMITED, TOHOKU UNIVERSITY
    Inventors: Yoshihide Wakayama, Kazuki Moyama, Tadahiro Ohmi, Akinobu Teramoto
  • Publication number: 20100259162
    Abstract: A material having a low work function is quickly inserted near an interface between an organic layer and a cathode.
    Type: Application
    Filed: November 28, 2008
    Publication date: October 14, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Kazuki Moyama
  • Publication number: 20100207515
    Abstract: A material having a low work function is quickly inserted near an interface between an organic layer and a cathode. A sputtering apparatus (Sp) includes a target material formed of silver (Ag), a dispenser formed outside a processing container and evaporating cesium (Cs) having a lower work function than silver (Ag) by heating the cesium (Cs), a first gas supply pipe communicating with the dispenser to transfer steam of the evaporated cesium (Cs) to the processing container by using argon gas as a carrier gas, and a high frequency power supply source supplying high frequency power to the processing container. A controller generates plasma by exciting the argon gas by using energy of the high frequency power, and while forming a metal electrode by using an silver (Ag) atom, wherein the Ag atom is generated from a the target material by using the generated plasma, controls a ratio of the cesium (Cs) mixed with the metal electrode.
    Type: Application
    Filed: September 18, 2008
    Publication date: August 19, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Kazuki Moyama
  • Publication number: 20100175989
    Abstract: A deposition system is provided to avoid cross contamination in each layer formed in a manufacturing process of organic electroluminescent device and the like, and to reduce footprint and to enhance productivity. Provided is a deposition apparatus 13 for forming a film on a substrate G, which includes a first deposition mechanism 35 for forming a first layer in a processing chamber 30, and a second deposition mechanism 36 for forming a second layer in the processing chamber 30. The first deposition mechanism 35 includes: a nozzle 34 disposed at an inside of the processing chamber 30, for supplying vapor of a deposition material to the substrate; a vapor generator 45 disposed at an outside of the processing chamber, for generating the vapor of the deposition material; and a line for transporting the vapor of the deposition material generated from the vapor generator 45 to the nozzle 34.
    Type: Application
    Filed: August 8, 2007
    Publication date: July 15, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuki Moyama, Toshihisa Nozawa
  • Publication number: 20100078309
    Abstract: A sputtering method is for forming, in a vacuum chamber, an initial layer on a film formation target object and then further forming a second layer on the initial layer therein, and the method includes: in the vacuum chamber, arranging surfaces of a pair of targets to face each other while distanced apart from each other at a preset distance and to be inclined toward the film formation target object placed at a lateral position between the targets, and then sputtering the targets by generating a magnetic field space on the facing surfaces of the pair of targets, and thus forming the initial layer on the film formation target object by using particles sputtered by the sputtering; and further forming the second layer on the film formation target object at a higher film forming rate than a film forming rate of the initial layer.
    Type: Application
    Filed: January 25, 2008
    Publication date: April 1, 2010
    Applicants: OSAKA VACUUM, LTD., TOKYO ELECTRON LIMITED
    Inventors: Yoshihiko Ueda, Kazuki Moyama, Koji Fukumori
  • Publication number: 20090314635
    Abstract: An organic film and a metal electrode (a cathode film) are formed on an indium tin oxide (ITO) of a substrate. The plasma processing apparatus supplies at least one of a predetermined processing gas for chemically reacting with the organic film and a predetermined inert gas for sputtering the organic film from a gas supply source into a processing container, wherein the metal electrode is used as a mask. The plasma processing gas also supplies microwaves from a microwave generator as energy for exciting the at least one of the predetermined processing gas and the predetermined inert gas. The plasma processing apparatus generates plasma from the at least one of the predetermined processing gas and the predetermined inert gas supplied to the processing container by using electric field energy of the microwaves, and etches the organic film by using the generated plasma.
    Type: Application
    Filed: March 20, 2009
    Publication date: December 24, 2009
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuki MOYAMA, Tomohiko EDURA
  • Publication number: 20090246941
    Abstract: A deposition system is provided to avoid cross contamination in each layer formed in a manufacturing process of organic electroluminescent device, etc., and also provided to reduce footprint. Provided is an apparatus 13 for forming a film onto a substrate which includes a first deposition mechanism 35 for forming a first layer and a second deposition mechanism 36 for forming a second layer in a processing chamber 30. The apparatus 13 further includes an exhaust opening 31 through which inside of the processing chamber 30 is evacuated, and the first deposition mechanism 35 is positioned closer to the exhaust opening 31 than the second deposition mechanism 36. The first layer, for example, is formed on the substrate by an evaporation method by the first deposition mechanism 35 and the second layer, for example, is formed on the substrate by a sputtering method by the second deposition mechanism 36.
    Type: Application
    Filed: August 8, 2007
    Publication date: October 1, 2009
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Shinji Matsubayashi, Kazuki Moyama, Yasuhiro Tobe
  • Publication number: 20090206728
    Abstract: A substrate process apparatus that forms a light emitting device configured with an organic layer including a light emitting layer on a substrate to be processed, the organic layer being formed between a first electrode and a second electrode, includes an organic layer forming apparatus wherein the organic layer is formed on the first electrode formed on the substrate to be processed; an electrode forming apparatus wherein the second electrode is formed on the organic layer; and an etching apparatus wherein the organic layer is etched.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 20, 2009
    Applicants: TOKYO ELECTION LIMITED, NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY
    Inventors: Toshihisa Nozawa, Kazuki Moyama, Tadahiro Ohmi, Chuichi Kawamura, Kimihiko Yoshino