Patents by Inventor Yasumi Sago

Yasumi Sago 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: 9844126
    Abstract: Provided is a plasma treatment apparatus capable of uniform substrate treatment by correction of unevenness in a plasma density distribution. The apparatus has a configuration such that a substrate is treated with plasma, and an evacuated container is provided with an annular antenna arranged around an outer periphery of the container, and is formed of a power supply container, and a process container where the substrate is placed, which communicates with an internal space of the power supply container. The plasma is generated in the power supply container by radio-frequency power supplied to the antenna. The plasma is diffused into the process container by a magnetic field of solenoid coils arranged around an outer periphery of the antenna. The inclination of the magnetic field is adjusted by an inclination adjustment means for adjusting the inclination of the solenoid coils with respect to the process substrate.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: December 12, 2017
    Assignee: Canon Aneiva Corporation
    Inventors: Masayoshi Ikeda, Kiyotaka Sakamoto, Akihiro Sawada, Yasumi Sago, Masami Hasegawa, Motozo Kurita
  • Publication number: 20120298303
    Abstract: Provided is a plasma treatment apparatus capable of uniform substrate treatment by correction of unevenness in a plasma density distribution. The apparatus has a configuration such that a substrate is treated with plasma, and an evacuated container is provided with an annular antenna arranged around an outer periphery of the container, and is formed of a power supply container, and a process container where the substrate is placed, which communicates with an internal space of the power supply container. The plasma is generated in the power supply container by radio-frequency power supplied to the antenna. The plasma is diffused into the process container by a magnetic field of solenoid coils arranged around an outer periphery of the antenna. The inclination of the magnetic field is adjusted by an inclination adjustment means for adjusting the inclination of the solenoid coils with respect to the process substrate.
    Type: Application
    Filed: June 15, 2012
    Publication date: November 29, 2012
    Applicant: CANON ANELVA CORPORATION
    Inventors: Masayoshi IKEDA, Kiyotaka SAKAMOTO, Akihiro SAWADA, Yasumi SAGO, Masami HASEGAWA, Motozo KURITA
  • Patent number: 8231767
    Abstract: A magnetic field generating apparatus which generates a cusped magnetic field on an electrode includes a magnet mechanism which is attached to the electrode and includes a plurality of magnets held on a holding plate, and a rotation mechanism which rotates the holding plate. The plurality of magnets (61) are regularly arrayed to be point-symmetrical about a specific point. The specific point is at a position shifted from the center of rotation of the holding plate by the rotation mechanism.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: July 31, 2012
    Assignee: Canon Anelva Corporation
    Inventors: Kazuyuki Iori, Masayoshi Ikeda, Yasumi Sago
  • Publication number: 20120073960
    Abstract: A magnetron sputtering apparatus includes a cathode electrode having a first surface and a second surface opposite to the first surface, a target attachable to the first surface of the cathode electrode, and a magnet unit which is adjacent to the second surface of the cathode electrode and forms a magnetic field on the target surface. The magnet unit includes a plurality of magnet pieces each having a first magnet member which is magnetized in a direction perpendicular to the target and is arranged with a magnetic pole end face oriented toward the target, and a second magnet member which is magnetized opposite to the first magnet member in the direction perpendicular to the target and is arranged in contact with the first magnet member with a magnetic pole end face being oriented toward the target.
    Type: Application
    Filed: September 1, 2011
    Publication date: March 29, 2012
    Applicant: CANON ANELVA CORPORATION
    Inventors: Yohsuke SHIBUYA, Masayoshi Ikeda, Yasumi Sago
  • Patent number: 8007633
    Abstract: This surface processing apparatus has a reactor in which plasma is generated and a substrate whose surface is to be processed by the plasma is arranged, and a magnet plate for creating a point-cusp magnetic field distributed in an inner space of the reactor, in which the plasma is generated. The magnet plate has a plurality of magnets. These magnets are arranged by a honeycomb lattice structure in a circular plane facing in parallel a surface of the substrate. One magnetic pole end face of each of magnets is arranged at a position of each of the lattice points forming hexagonal shapes on the circular plane. The polarities of the magnetic pole end faces of two adjoining magnets are arranged to become opposite alternately. The magnet plate may be provided with a plurality of magnets arranged by a lattice structure forming a square and the magnetic force (coercive force) of some of the magnets arranged at the outermost region is reduced.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: August 30, 2011
    Assignee: Canon Anelva Corporation
    Inventors: Akihiro Egami, Masayoshi Ikeda, Yasumi Sago, Yukito Nakagawa
  • Publication number: 20110174221
    Abstract: This surface processing apparatus has a reactor in which plasma is generated and a substrate whose surface is to be processed by the plasma is arranged, and a magnet plate for creating a point-cusp magnetic field distributed in an inner space of the reactor, in which the plasma is generated. The magnet plate has a plurality of magnets. These magnets are arranged by a honeycomb lattice structure in a circular plane facing in parallel a surface of the substrate. One magnetic pole end face of each of magnets is arranged at a position of each of the lattice points forming hexagonal shapes on the circular plane. The polarities of the magnetic pole end faces of two adjoining magnets are arranged to become opposite alternately. The magnet plate may be provided with a plurality of magnets arranged by a lattice structure forming a square and the magnetic force (coercive force) of some of the magnets arranged at the outermost region is reduced.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 21, 2011
    Applicant: CANON ANELVA CORPORATION
    Inventors: Akihiro Egami, Masayoshi Ikeda, Yasumi Sago, Yukito Nakagawa
  • Patent number: 7976716
    Abstract: A method of using a heat exchanger efficiently and uniformly to cool or heats portions to be controlled to a prescribed temperature, and then continuously carry out stable processing. The heat exchanger is constructed by arranging partition walls between two plates to form a fluid channel and a fin parallel with the channel or inclined by a prescribed angle on each of the two plates insides the channel so that the plate or a member in contact with the plate is cooled or heated with the fluid flowing through the channel.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: July 12, 2011
    Assignee: Canon Anelva Corporation
    Inventors: Yasumi Sago, Masayoshi Ikeda, Kazuaki Kaneko, Takuji Okada
  • Publication number: 20110121927
    Abstract: A magnetic field generating apparatus which generates a cusped magnetic field on an electrode includes a magnet mechanism which is attached to the electrode and includes a plurality of magnets held on a holding plate, and a rotation mechanism which rotates the holding plate. The plurality of magnets (61) are regularly arrayed to be point-symmetrical about a specific point. The specific point is at a position shifted from the center of rotation of the holding plate by the rotation mechanism.
    Type: Application
    Filed: December 21, 2010
    Publication date: May 26, 2011
    Applicant: CANON ANELVA CORPORATION
    Inventors: Kazuyuki Iori, Masayoshi Ikeda, Yasumi Sago
  • Publication number: 20100276275
    Abstract: There is provided a method or the like which safely generates fine metal particles at a low cost without using a chlorine gas. Fine copper particles (101a, 101b) are generated by placing a copper target (2) in a chamber (6) of a sputtering apparatus, generating a plasma (100) in the chamber (6) while setting the pressure in the chamber (6) at 13 Pa or more, and sputtering the copper target (2).
    Type: Application
    Filed: July 15, 2010
    Publication date: November 4, 2010
    Applicants: Canon Anelva Corporation, National University Corporation Nagoya University
    Inventors: Koichi SASAKI, Masayoshi Ikeda, Yasumi Sago
  • Patent number: 7767056
    Abstract: This application discloses a High-Frequency plasma processing apparatus comprising a process chamber in which a substrate to be processed is placed, a process-gas introduction line for introducing a process gas into the process chamber, a first HF electrode provided in the process chamber, a first HF power source for applying voltage to the first HF electrode, thereby generating plasma of the process gas. The apparatus further comprises a second HF electrode facing the first HF electrode in the process chamber, interposing discharge space, and a series resonator connecting the second HF electrode and the ground. The frequency of the first HF power source is not lower than 30 MHz. The series resonator is resonant as the distributed constant circuit at the frequency of the first HF power source.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: August 3, 2010
    Assignee: Canon Anelva Corporation
    Inventors: Yasumi Sago, Masayoshi Ikeda, Nobuaki Tsuchiya, Hisaaki Sato
  • Publication number: 20100147801
    Abstract: This application discloses a High-Frequency plasma processing apparatus comprising a process chamber in which a substrate to be processed is placed, a process-gas introduction line for introducing a process gas into the process chamber, a first HF electrode provided in the process chamber, a first HF power source for applying voltage to the first HF electrode, thereby generating plasma of the process gas. The apparatus further comprises a second HF electrode facing the first HF electrode in the process chamber, interposing discharge space, and a series resonator connecting the second HF electrode and the ground. The frequency of the first HF power source is not lower than 30 MHz. The series resonator is resonant as the distributed constant circuit at the frequency of the first HF power source.
    Type: Application
    Filed: February 18, 2010
    Publication date: June 17, 2010
    Applicant: CANON ANELVA CORPORATION
    Inventors: Yasumi SAGO, Masayoshi IKEDA, Nobuaki TSUCHIYA, Hisaaki SATO
  • Patent number: 7615133
    Abstract: An electrostatic chuck module for a semiconductor manufacturing apparatus which can be cooled with water and in which there is no penetration leak includes an electrostatic chuck plate of alumina and a cooling plate which is bonded to the electrostatic chuck, wherein the cooling plate is formed by forging processing to a Cu-based composite material comprising Cu—W, Cu—W—Ni, Cu—Mo, or Cu—Mo—Ni. By adjusting the ratio of Cu and Ni having a great thermal expansion coefficient and W and Mo having a small thermal expansion coefficient in a Cu-based composite material, it is possible to obtain a highly thermally conductive material having the same thermal expansion coefficient as an alumina material for an electrostatic chuck. However, since such a composite material has a penetration leak, it cannot be used in a vacuum system. According to the present invention, by conducting forging processing, a penetration leak can be prevented.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: November 10, 2009
    Assignees: Toto Ltd., Canon Anelva Corporation
    Inventors: Noriaki Tateno, Jun Miyaji, Yasumi Sago, Masayoshi Ikeda, Kazuaki Kaneko, Tomio Takamura, Tadashi Hirayama, Yoshiyuki Ikemura, Masahiko Tamaru
  • Publication number: 20090197418
    Abstract: A method of using a heat exchanger efficiently and uniformly to cool or heats portions to be controlled to a prescribed temperature, and then continuously carry out stable processing. The heat exchanger is constructed by arranging partition walls between two plates to form a fluid channel and a fin parallel with the channel or inclined by a prescribed angle on each of the two plates insides the channel so that the plate or a member in contact with the plate is cooled or heated with the fluid flowing through the channel.
    Type: Application
    Filed: February 25, 2009
    Publication date: August 6, 2009
    Applicant: CANON ANELVA CORPORATION
    Inventors: Yasumi SAGO, Masayoshi IKEDA, Kazuaki KANEKO, Takuji OKADA
  • Publication number: 20090173444
    Abstract: The invention is to realize a gas ejection mechanism, which makes it possible to form a uniform gas flow and to control the temperature and its distribution over a gas plate, and thereby to provide a surface processing apparatus which can continuously carry out uniform processing. A surface processing apparatus of this invention comprises: a process chamber in which a substrate holding mechanism and a gas ejection mechanism are arranged to face each other; an exhaust means; and a gas supply means; wherein a gas distribution mechanism, a cooling or the heating mechanism provided with a coolant channel or a heater to cool or heat a gas plate and a number of gas passages, and the gas plate having a number of gas outlets communicated with the gas passages are arranged in that order from the upper stream to construct the gas ejection mechanism, and wherein the gas plate is fixed to the cooling or heating mechanism with a clamping member or with an electrostatic chucking mechanism.
    Type: Application
    Filed: March 3, 2009
    Publication date: July 9, 2009
    Applicant: CANON ANELVA CORPORATION
    Inventors: Yasumi Sago, Masayoshi Ikeda, Kazuaki Kaneko, Daisuke Kondo, Osamu Morita
  • Patent number: 7513063
    Abstract: A heat exchanger efficiently and uniformly cools or heats portions to be controlled to a prescribed temperature, and then provides a surface processing apparatus which makes it possible to continuously carry out stable processing. The heat exchanger is constructed by arranging partition walls between two plates to form a fluid channel and a fin parallel with the channel or inclined by a prescribed angle on each of the two plates insides the channel so that the plate or a member in contact with the plate is cooled or heated with the fluid flowing through the channel.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: April 7, 2009
    Assignee: Canon Anelva Corporation
    Inventors: Yasumi Sago, Masayoshi Ikeda, Kazuaki Kaneko, Takuji Okada
  • Publication number: 20080156440
    Abstract: A surface processing apparatus includes a process chamber including a gas ejection mechanism; an exhaust for exhausting the inside of said process chamber; and a gas supply for supplying a gas to the gas ejection mechanism. The gas ejection mechanism includes a first gas distribution mechanism for distributing the gas into a cooling or heating mechanism, including a gas distribution plate placed in the frame member, the gas distribution plate having a plurality of holes that extend therethrough, the cooling or heating mechanism having multiple gas passages that extend therethrough, the plate having a number of outlets to eject the gas into the process chamber, wherein there are more outlets in the plate than there are gas passages, and the plate is fixed to a second gas distribution mechanism with a clamping member.
    Type: Application
    Filed: December 14, 2007
    Publication date: July 3, 2008
    Applicant: Canon Anelva Corporation
    Inventors: Yasumi Sago, Masayoshi Ikeda, Kazuaki Kaneko, Daisuke Kondo, Osamu Morita
  • Publication number: 20080113149
    Abstract: This surface processing apparatus has a reactor in which plasma is generated and a substrate whose surface is to be processed by the plasma is arranged, and a magnet plate for creating a point-cusp magnetic field distributed in an inner space of the reactor, in which the plasma is generated. The magnet plate has a plurality of magnets. These magnets are arranged by a honeycomb lattice structure in a circular plane facing in parallel a surface of the substrate. One magnetic pole end face of each of magnets is arranged at a position of each of the lattice points forming hexagonal shapes on the circular plane. The polarities of the magnetic pole end faces of two adjoining magnets are arranged to become opposite alternately. The magnet plate may be provided with a plurality of magnets arranged by a lattice structure forming a square and the magnetic force (coercive force) of some of the magnets arranged at the outermost region is reduced.
    Type: Application
    Filed: December 26, 2007
    Publication date: May 15, 2008
    Applicant: ANELVA CORPORATION
    Inventors: Akihiro Egami, Masayoshi Ikeda, Yasumi Sago, Yukito Nakagawa
  • Publication number: 20080053615
    Abstract: This application discloses a High-Frequency plasma processing apparatus comprising a process chamber in which a substrate to be processed is placed, a process-gas introduction line for introducing a process gas into the process chamber, a first HF electrode provided in the process chamber, a first HF power source for applying voltage to the first HF electrode, thereby generating plasma of the process gas. The apparatus further comprises a second HF electrode facing the first HF electrode in the process chamber, interposing discharge space, and a series resonator connecting the second HF electrode and the ground. The frequency of the first HF power source is not lower than 30 MHz. The series resonator is resonant as the distributed constant circuit at the frequency of the first HF power source.
    Type: Application
    Filed: August 8, 2007
    Publication date: March 6, 2008
    Applicant: CANON ANELVA CORPORATION
    Inventors: Yasumi SAGO, Masayoshi IKEDA, Nobuaki TSUCHIYA, Hisaaki SATO
  • Publication number: 20080053614
    Abstract: A surface processing apparatus includes a process chamber including a gas ejection mechanism; an exhaust for exhausting the inside of said process chamber; and a gas supply for supplying a gas to the gas ejection mechanism. The gas ejection mechanism includes a a first gas distribution mechanism for distributing the gas into a cooling or heating mechanism, including a gas distribution plate placed in the frame member, the gas distribution plate having a plurality of holes that extend therethrough, the cooling or heating mechanism having multiple gas passages that extend therethrough, the plate having a number of outlets to eject the gas into the process chamber, wherein there are more outlets in the plate than there are gas passages, and the plate is fixed to a second gas distribution mechanism with a clamping member.
    Type: Application
    Filed: August 27, 2007
    Publication date: March 6, 2008
    Applicant: CANON ANELVA CORPORATION
    Inventors: Yasumi Sago, Masayoshi Ikeda, Kazuaki Kaneko, Daisuke Kondo, Osamu Morita
  • Patent number: RE42175
    Abstract: This application discloses the structure of an ESC stage where a chucking electrode is sandwiched by a moderation layer and a covering layer. The moderation layer and the covering layer have the thermal expansion coefficients between the dielectric plate and the chucking electrode. This application also discloses the structure of an ESC stage where a chucking electrode is sandwiched by a moderation layer and a covering layer, which have internal stress directed oppositely to that of the chucking electrode. This application further discloses a substrate processing apparatus for carrying out a process onto a substrate as the substrate is maintained at a temperature higher than room temperature, comprising the electrostatic chucking stage for holding the substrate during the process.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: March 1, 2011
    Assignees: Canon Anelva Corporation, NHK Spring Co., Ltd.
    Inventors: Yasumi Sago, Kazuaki Kaneko, Takuji Okada, Masayoshi Ikeda, Toshihiro Tachikawa, Tadashi Inokuchi, Takashi Kayamoto