Patents by Inventor Shigeru Senzaki

Shigeru Senzaki 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: 10276405
    Abstract: A plasma processing apparatus includes: a processing container; a processing gas supply unit; a mounting table configured to mount a to-be-processed substrate thereon; an upper electrode provided above the mounting table; a plasma generation unit configured to supply a high frequency power to generate plasma of the processing gas; an exhaust flow path formed by a side wall of the processing container and a side surface of the mounting table; a conductive rectification plate configured to adjust a flow of the processing gas discharged to outside of the processing container; a conductor arranged in the exhaust flow path at a position higher than the rectification plate and lower than the to-be-processed substrate to face at least a part of the upper electrode. A distance of the conductor in the height direction in relation to the to-be-processed surface of the substrate is set to be within a predetermined range.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: April 30, 2019
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akinori Miyata, Shigeru Senzaki, Hirofumi Haga, Nobutaka Nakao
  • Patent number: 10199246
    Abstract: There is provided a temperature control mechanism comprising: a plurality of combinations of a heater and a thyristor, wherein at least one combination of the heater and the thyristor is provided on a zone-by-zone basis, and wherein an area of an electrostatic chuck for mounting a substrate is divided into a plurality of zones; a power supply configured to supply current to heaters of the plurality of combinations respectively through the thyristors of the plurality of combinations; a pair of filters disposed at a power supply line for supplying electric power from the power supply to the heaters and configured to eliminate high frequency power applied to the power supply.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: February 5, 2019
    Assignee: Tokyo Electron Limited
    Inventors: Katsuyuki Koizumi, Shigeru Senzaki, Tomoyuki Takahashi, Dai Kitagawa
  • Patent number: 10069443
    Abstract: A dechuck control method includes performing a discharge process by introducing an inert gas into a processing chamber and maintaining the pressure within the processing chamber at a first pressure; monitoring the pressure of a heat transmitting gas supplied to the processing object rear face and/or the leakage flow rate of the heat transmitting gas; obtaining the amount and polarity of the residual electric charge of the electrostatic chuck surface and applying a voltage for supplying an electric charge that is of the same amount as the residual electric charge but of the opposite polarity to a chuck electrode; evacuating the inert gas from the processing chamber while applying the voltage to the chuck electrode and reducing the pressure within the processing chamber to a second pressure; and turning off the voltage applied to the electrostatic chuck and dechucking the processing object from the electrostatic chuck.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: September 4, 2018
    Assignee: Tokyo Electron Limited
    Inventors: Shigeru Senzaki, Shunichi Mikami, Toshikatsu Tobana
  • Patent number: 9818582
    Abstract: Disclosed is a plasma processing method. The method includes forming a protective film on an inner wall surface of a processing container of a plasma processing apparatus; and executing a processing on a workpiece within the processing container. When forming the protective film, a protective film forming gas is supplied from an upper side of the space between the mounting table and the side wall of the processing container so that plasma is generated. When executing the processing, a workpiece processing gas is supplied from an upper side of the mounting table so that plasma is generated.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: November 14, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Hiraku Murakami, Nobutaka Sasaki, Shigeru Senzaki, Takanori Banse, Hiroshi Tsujimoto, Keigo Toyoda
  • Patent number: 9613837
    Abstract: A substrate processing apparatus includes: a first processing chamber; a second processing chamber; a transfer chamber; a frame structure; and an elevating part. Each of the first and the second processing chamber has a main body part and a lid part. The transfer chamber is connected to the first and the second processing chamber and accommodates a transfer unit for transferring the substrate. The frame structure has a pair of column parts and a beam part supported at top portions of the column parts. The elevating part is coupled to the beam part to be moved in a horizontal direction and moves the lid part in the vertical direction. The beam part extends above the first and the second processing chamber and the transfer chamber.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: April 4, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shigeru Senzaki, Michishige Saito, Daiki Satoh, Ken Horiuchi, Koji Ando, Shingo Koiwa
  • Publication number: 20160372308
    Abstract: Disclosed is a plasma processing method. The method includes forming a protective film on an inner wall surface of a processing container of a plasma processing apparatus; and executing a processing on a workpiece within the processing container. When forming the protective film, a protective film forming gas is supplied from an upper side of the space between the mounting table and the side wall of the processing container so that plasma is generated. When executing the processing, a workpiece processing gas is supplied from an upper side of the mounting table so that plasma is generated.
    Type: Application
    Filed: June 13, 2016
    Publication date: December 22, 2016
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hiraku MURAKAMI, Nobutaka SASAKI, Shigeru SENZAKI, Takanori BANSE, Hiroshi TSUJIMOTO, Keigo TOYODA
  • Publication number: 20160225645
    Abstract: There is provided a temperature control mechanism comprising: a plurality of combinations of a heater and a thyristor, wherein at least one combination of the heater and the thyristor is provided on a zone-by-zone basis, and wherein an area of an electrostatic chuck for mounting a substrate is divided into a plurality of zones; a power supply configured to supply current to heaters of the plurality of combinations respectively through the thyristors of the plurality of combinations; a pair of filters disposed at a power supply line for supplying electric power from the power supply to the heaters and configured to eliminate high frequency power applied to the power supply.
    Type: Application
    Filed: October 16, 2014
    Publication date: August 4, 2016
    Applicant: Tokyo Electron Limited
    Inventors: Katsuyuki KOIZUMI, Shigeru SENZAKI, Tomoyuki TAKAHASHI, Dai KITAGAWA
  • Publication number: 20160172217
    Abstract: A plasma processing apparatus includes: a processing container; a processing gas supply unit; a mounting table configured to mount a to-be-processed substrate thereon; an upper electrode provided above the mounting table; a plasma generation unit configured to supply a high frequency power to generate plasma of the processing gas; an exhaust flow path formed by a side wall of the processing container and a side surface of the mounting table; a conductive rectification plate configured to adjust a flow of the processing gas discharged to outside of the processing container; a conductor arranged in the exhaust flow path at a position higher than the rectification plate and lower than the to-be-processed substrate to face at least a part of the upper electrode. A distance of the conductor in the height direction in relation to the to-be-processed surface of the substrate is set to be within a predetermined range.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 16, 2016
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akinori MIYATA, Shigeru SENZAKI, Hirofumi HAGA, Nobutaka NAKAO
  • Publication number: 20160086773
    Abstract: A plasma processing apparatus includes a reaction chamber for performing a plasma process on a substrate. A pedestal to receive the substrate thereon is provided in the reaction chamber. The reaction chamber includes an area A to generate the plasma therein, an exhaust area, and an area B provided between the area A and the exhaust area. The plasma is generated in the area B. An inner wall of the area A is covered with a first gasifying material. A plurality of partition members made of a second gasifying material is provided downstream of a surface of the substrate on the pedestal so as to divide an inside of the chamber into the area A and the area B to prevent a first particle present in the area B from diffusing into the area A.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 24, 2016
    Inventor: Shigeru SENZAKI
  • Publication number: 20150086302
    Abstract: A substrate processing apparatus includes: a first processing chamber; a second processing chamber; a transfer chamber; a frame structure; and an elevating part. Each of the first and the second processing chamber has a main body part and a lid part. The transfer chamber is connected to the first and the second processing chamber and accommodates a transfer unit for transferring the substrate. The frame structure has a pair of column parts and a beam part supported at top portions of the column parts. The elevating part is coupled to the beam part to be moved in a horizontal direction and moves the lid part in the vertical direction. The beam part extends above the first and the second processing chamber and the transfer chamber.
    Type: Application
    Filed: April 1, 2013
    Publication date: March 26, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Shigeru Senzaki, Michishige Saito, Daiki Satoh, Ken Horiuchi, Koji Ando, Shingo Koiwa
  • Publication number: 20130240479
    Abstract: To provide a method for producing a filtration filter that can simplify the process for providing clean water or freshwater. By etching silicon substrate 1 using masking film formed on a surface of substrate 1 and having numerous openings to expose portions of the surface, numerous circular holes 2 with an approximate diameter of 100 nm are formed in substrate 1. Diameter (D1) at minimum-diameter portions 4 near the openings of circular holes 2 to be reduced by silica film 3 is adjusted to be 1 nm˜100 nm by depositing silica film 3 on the inner surfaces of circular holes 2.
    Type: Application
    Filed: May 9, 2013
    Publication date: September 19, 2013
    Inventors: Tsuyoshi MORIYA, Kenichi Kataoka, Shigeru Senzaki, Youichi Shimanuki, Kazuhiko Kano, Yu Wamura, Song yun Kang, Eiichi Nishimura
  • Publication number: 20130193087
    Abstract: Provided is a water treatment device with which organic substances contained in raw water to be treated are decomposed to thereby alleviate the load to be imposed on a downstream filter and with which it is possible to avoid corrosion of the piping or the like.
    Type: Application
    Filed: October 7, 2011
    Publication date: August 1, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Tsuyoshi Moriya, Kenichi Kataoka, Shigeru Senzaki, Youichi Shimanuki, Kazuhiko Kano
  • Publication number: 20090290336
    Abstract: A light shielding mask 24 opposing to an entrance surface of a fly eye lens 23 is provided, and a transparent portion 25 is made open corresponding to each of lens portions 23b, respectively. Each transparent portion 25 is divided to be formed into a first transparent portion 25a allowing light for forming a projected image 101a on an upper stage of an illuminated surface 100a to enter the lens portions 23b and a second transparent portion 25b allowing light for forming a projected image 101b on an lower stage of the illuminated surface 100b to enter the lens portions 23b, and these are individually set, thereby a difference between an irradiation distance to each of the illuminated surface 100a, 100b due to a step can be complemented, individually.
    Type: Application
    Filed: September 6, 2005
    Publication date: November 26, 2009
    Applicant: HARISON TOSHIBA LIGHTING CORP.
    Inventors: Shigeru Senzaki, Toshiyuki Arai, Yuuji Wagatsuma, Hideo Inoue, Yoshiaki Matsuba
  • Publication number: 20090052182
    Abstract: There is provided a lighting system simple in configuration and capable of irradiating an irradiation image with less distortion onto an irradiation surface. For this reason, light shielding masks 24 causing light from an LED 12 to be incident on lens units 23b are arranged oppositely to a fly-eye lens 23. The opening shape of a light shielding unit 24b arranged on the light shielding mask 24 is set according to the state where the fly-eye lens 23 opposes an irradiation surface 100, and the light shielding unit 24b prohibits light in a range distorting the shape of an irradiation image on the irradiation surface 100 from being incident on the lens units 23b.
    Type: Application
    Filed: February 20, 2006
    Publication date: February 26, 2009
    Inventors: Yoshiaki Matsuba, Yuji Wagatsuma, Hideo Inoue, Shigeru Senzaki, Toshiyuki Arai
  • Patent number: 7481903
    Abstract: A processing device in which maintenance can be easily carried out and a burden on a worker can be reduced, and a method of maintaining the device are provided. An upper electrode unit 106 structuring a ceiling portion of a processing chamber 102 of an etching device 100 is structured from a lower assembly 128 at a processing chamber 102 side including an upper electrode 130, and an upper assembly 128 at a power supply side including an electro-body 144. A lock mechanism 156 is released, and after the upper assembly 126 is independently raised and removed by a lift mechanism 164, maintenance of the upper assembly 126 and/or the lower assembly 128 is carried out. The lock mechanism 156 is locked, and after the upper and lower assemblies 126, 128 are integrally raised and removed by the lift mechanism 164, maintenance of an interior of the processing chamber 102 is carried out.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: January 27, 2009
    Assignee: Tokyo Electron Limited
    Inventors: Shigeru Senzaki, Toshiki Sasaki, Tadashi Aoto, Nobuyuki Nagayama, Kouji Mitsuhashi
  • Publication number: 20050150456
    Abstract: A processing device in which maintenance can be easily carried out and a burden on a worker can be reduced, and a method of maintaining the device are provided. An upper electrode unit 106 structuring a ceiling portion of a processing chamber 102 of an etching device 100 is structured from a lower assembly 128 at a processing chamber 102 side including an upper electrode 130, and an upper assembly 128 at a power supply side including an electro-body 144. A lock mechanism 156 is released, and after the upper assembly 126 is independently raised and removed by a lift mechanism 164, maintenance of the upper assembly 126 and/or the lower assembly 128 is carried out. The lock mechanism 156 is locked, and after the upper and lower assemblies 126, 128 are integrally raised and removed by the lift mechanism 164, maintenance of an interior of the processing chamber 102 is carried out.
    Type: Application
    Filed: March 1, 2005
    Publication date: July 14, 2005
    Inventors: Shigeru Senzaki, Toshiki Sasaki, Tadashi Aoto, Nobuyuki Nagayama, Kouji Mitsuhashi
  • Patent number: 6899786
    Abstract: A processing device in which maintenance can be easily carried out and a burden on a worker can be reduced, and a method of maintaining the device are provided. An upper electrode unit 106 structuring a ceiling portion of a processing chamber 102 of an etching device 100 is structured from a lower assembly 128 at a processing chamber 102 side including an upper electrode 130, and an upper assembly 126 at a power supply side including an electro-body 144. A lock mechanism 156 is released, and after the upper assembly 126 is independently raised and removed by a lift mechanism 164, maintenance of the upper assembly 126 and/or the lower assembly 128 is carried out. The lock mechanism 156 is locked, and after the upper and lower assemblies 126, 128 are integrally raised and removed by the lift mechanism 164, maintenance of an interior of the processing chamber 102 is carried out.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: May 31, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Shigeru Senzaki, Toshiki Sasaki, Tadashi Aoto, Nobuyuki Nagayama, Kouji Mitsuhashi
  • Publication number: 20040108068
    Abstract: A processing device in which maintenance can be easily carried out and a burden on a worker can be reduced, and a method of maintaining the device are provided. An upper electrode unit 106 structuring a ceiling portion of a processing chamber 102 of an etching device 100 is structured from a lower assembly 128 at a processing chamber 102 side including an upper electrode 130, and an upper assembly 128 at a power supply side including an electro-body 144. A lock mechanism 156 is released, and after the upper assembly 126 is independently raised and removed by a lift mechanism 164, maintenance of the upper assembly 126 and/or the lower assembly 128 is carried out. The lock mechanism 156 is locked, and after the upper and lower assemblies 126, 128 are integrally raised and removed by the lift mechanism 164, maintenance of an interior of the processing chamber 102 is carried out.
    Type: Application
    Filed: November 18, 2002
    Publication date: June 10, 2004
    Inventors: Shigeru Senzaki, Toshiki Sasaki, Tadashi Aoto, Nobuyuki Nagayama, Kouji Mitsuhashi