Patents by Inventor Hisanori Matsuo

Hisanori Matsuo 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: 20050191949
    Abstract: The present invention relates to a polishing apparatus for polishing a workpiece, such as a semiconductor wafer, to a flat mirror finish. The polishing apparatus comprises a polishing table having a polishing surface, and a top ring, and the workpiece is interposed between the polishing table and the top ring and pressed at a predetermined pressure to polish the workpiece. The polishing apparatus comprises at least two dressing units for dressing the polishing surface by being brought into contact with the ppolishing surface, which is a surface of a polishing cloth.
    Type: Application
    Filed: April 25, 2005
    Publication date: September 1, 2005
    Inventors: Kenji Kamimura, Norio Kimura, Satoshi Okamura, Hideo Aizawa, Makoto Akagi, Katsuhiko Tokushige, Hisanori Matsuo, Manabu Tsujimura
  • Publication number: 20050112998
    Abstract: A polishing apparatus is used for polishing a substrate such as a semiconductor wafer to a flat finish. The polishing apparatus includes a polishing tool having a polishing surface, a substrate holder configured to hold a substrate, a monitoring device configured to monitor a polishing state of the surface of the substrate being polished, and a controlling device configured to change a polishing condition on the basis of the polishing state of the surface of the substrate being polished detected by the monitoring device.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 26, 2005
    Inventors: Hisanori Matsuo, Akira Ishikawa
  • Patent number: 6712678
    Abstract: It is an object of the present invention to provide a mechanism for effectively discharging debris produced when a substrate is polished by a bonded-abrasive element, and a polishing apparatus. According to the present invention, a polishing apparatus presses a surface of a substrate against a bonded-abrasive surface and moves the surface to be polished and the bonded-abrasive surface relative to each other to polish the surface. A mechanism is provided for discharging debris produced on the bonded-abrasive surface when the surface to be polished is polished.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: March 30, 2004
    Assignee: Ebara Corporation
    Inventors: Yutaka Wada, Hirokuni Hiyama, Kazuto Hirokawa, Hisanori Matsuo
  • Patent number: 6672945
    Abstract: A abstract polishing apparatus has a substrate carrier a substrate and an abrasive member having a polishing surface. The surface is slidingly engaged with the substrate in order to effect polishing. The dressing device includes a light source when generating light rays for irradiating the polishing surface of the abrasive member, whereby dressing the polishing surface. A temperature control system control the temperature of the polishing surface of the abrasive member by sensing the temperature of the polishing surface with the temperature sensor. Mechanical dressing of the polishing surface, in addition to dressing by radiation of the polishing surface, may also be employed in order to flatten the entire polishing surface. The abrasive member preferably includes an abrasive particles, a binder and a photophilic for promoting the dressing of the polishing surface by light rays.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: January 6, 2004
    Assignee: Ebara Corporation
    Inventors: Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada, Kazuto Hirokawa
  • Patent number: 6626739
    Abstract: A method is provided for polishing a device wafer, which has projections and depressions formed on a surface thereof, with the use of an abrading plate. The method comprises polishing the device wafer while supplying a surface active agent and/or while dressing a surface of the abrading plate. This method for polishing the device wafer can always exhibit a self-stop function, without being restricted by the composition of the abrading plate, and without being restricted by the type of the substrate.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: September 30, 2003
    Assignee: Ebara Corporation
    Inventors: Yutaka Wada, Hirokuni Hiyama, Kazuto Hirokawa, Hisanori Matsuo
  • Patent number: 6595831
    Abstract: A polishing method and apparatus can concurrently establish a stable removal rate, a small step height reduction rate, and reduction of detects on the polished surface for various kinds of polished subjects, while providing less environmental problems and requiring less processing costs. The method for polishing a surface of a semiconductor device wafer comprises first polishing a surface of the semiconductor wafer by a first fixed abrasive polishing method; and finish polishing the polished surface of the semiconductor wafer by a second fixed abrasive polishing method different from the first fixed abrasive polishing method.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: July 22, 2003
    Assignee: Ebara Corporation
    Inventors: Kazuto Hirokawa, Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo, Noburu Shimizu
  • Patent number: 6579148
    Abstract: A polishing apparatus is used for polishing a surface of a workpiece such as a semiconductor wafer or a glass substrate. The polishing apparatus comprises a polishing table having a polishing surface thereon, a plurality of workpiece holders each for holding a workpiece and pressing the workpiece against the polishing surface, and a controller for controlling the workpiece holders individually so that polishing operations of the workpiece holders are controlled independently of each other.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: June 17, 2003
    Assignee: Ebara Corporation
    Inventors: Kazuto Hirokawa, Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo, Tetsuji Togawa
  • Patent number: 6520845
    Abstract: A polishing apparatus comprises a polishing member that has a wide stable polishing range to perform effective polishing, even if a rotation axis moves away from the edge of a workpiece. A polishing member holder holds the polishing member, and a workpiece holder holds the workpiece to be polished. A drive device produces a relative sliding motion between the polishing member and the workpiece. At least one holder of either the polishing member holder or the workpiece holder is rotatable about a rotation axis and is tiltable with respect to other holder. Such one holder is provided with a pressing mechanism to stabilize orientation or desired posture of the one holder by applying an adjusting pressure to the one holder at a location away from the rotation axis.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: February 18, 2003
    Assignee: Ebara Corporation
    Inventors: Kazuto Hirokawa, Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo
  • Publication number: 20020164932
    Abstract: The present invention relates to a polishing apparatus for polishing a workpiece to be polished, such as a semiconductor wafer, to a flat mirror finish. The polishing apparatus comprises a polishing table having a polishing surface, and a top ring, and the workpiece to be polished is interposed between the polishing table and the top ring and pressed at a predetermined pressure to polish the workpiece. The polishing apparatus comprises at least two dressing units for dressing the polishing surface by being brought into contact with a surface of a polishing cloth.
    Type: Application
    Filed: March 14, 2001
    Publication date: November 7, 2002
    Inventors: Kenji Kamimura, Norio Kimura, Satoshi Okamura, Hideo Aizawa, Makoto Akagi, Katsuhiko Tokushige, Hisanori Matsuo, Manabu Tsujimura
  • Publication number: 20020151259
    Abstract: A polishing apparatus is used for polishing a surface of a workpiece such as a semiconductor wafer or a glass substrate. The polishing apparatus comprises a polishing table having a polishing surface thereon, a plurality of workpiece holders each for holding a workpiece and pressing the workpiece against the polishing surface, and a controller for controlling the workpiece holders individually so that polishing operations of the workpiece holders are controlled independently of each other.
    Type: Application
    Filed: June 11, 2002
    Publication date: October 17, 2002
    Inventors: Kazuto Hirokawa, Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo, Tetsuji Togawa
  • Patent number: 6458012
    Abstract: A polishing apparatus is used for polishing a surface of a workpiece such as a semiconductor wafer or a glass substrate. The polishing apparatus comprises a polishing table having a polishing surface thereon, a plurality of workpiece holders each for holding a workpiece and pressing the workpiece against the polishing surface, and a controller for controlling the workpiece holders individually so that polishing operations of the workpiece holders are controlled independently of each other.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: October 1, 2002
    Assignee: Ebara Corporation
    Inventors: Kazuto Hirokawa, Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo, Tetsuji Togawa
  • Publication number: 20020137440
    Abstract: A polishing apparatus is used for polishing a plate-like workpiece, such as a semiconductor wafer or a glass substrate. The polishing apparatus has a polishing table having a polishing surface thereon, a plurality of workpiece holders each for holding a workpiece and pressing the workpiece against the polishing surface, and a dresser for dressing the polishing surface by pressing a desired position of the polishing surface.
    Type: Application
    Filed: April 24, 2002
    Publication date: September 26, 2002
    Inventors: Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada, Kazuto Hirokawa, Tetsuji Togawa
  • Patent number: 6413149
    Abstract: The present invention provides an abrading plate having self-stopping capability such that when an object, such as a semiconductor wafer having a device structure that includes raised regions and depressed regions fabricated on the surface, is being polished, the raised regions are removed and polishing stops automatically. A method of using the abrading plate is also provided. The present invention relates to an abrading plate that produces a flat and mirror polished surface on an object with an abrading plate comprised by abrasive particles having a chemical purity of not less than 90% and a particle size of not more than two micrometers; a binder material; and a given volume of porosity, wherein a ratio of the abrasive particles and the binder material is not less than 1:0.5 by volume, and proportions of abrasive particles, a binder material and porosity are, respectively, not less than 10%, not more than 60% and 10˜40 by volume.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: July 2, 2002
    Assignee: Ebara Corporation
    Inventors: Yutaka Wada, Hirokuni Hiyama, Kazuto Hirokawa, Hisanori Matsuo
  • Patent number: 6413155
    Abstract: A polishing apparatus polishes a workpiece to a planar mirror finish stably, and is prevented from being vibrated while polishing is carried out. The polishing apparatus has a holding member for holding the workpiece, and a bearing supporting an outer circumferential surface of the holding member, for suppressing vibrations transmitted to the holder while the workpiece is being polished.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: July 2, 2002
    Assignee: Ebara Corporation
    Inventors: Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada, Kazuto Hirokawa
  • Publication number: 20020073397
    Abstract: There is provided a component development supporting system capable of efficiently developing a component which will form the basis for the development of an application. If the user uses an input/output device 18 to generate a template Session Bean (a process generating part 20), an execution statement part 22 of the process generating part 20 calls a predefined interface to make a request for the generation of an Enterprise Bean instance. In accordance therewith, a Session Bean instance 41 is generated, and a request for the generation of a process model 42 is made to a process model generating part 21. The process model generating part 21 automatically generates a program statement for realizing a process of a component, on the basis of a component definition information 17, and sequentially executes the program statement to generate an executable process model 42 in a memory of a computer. The process model 42 is generated so as to be related to the Session Bean instance 41.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 13, 2002
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuki Yoshida, Hisanori Matsuo
  • Patent number: 6402588
    Abstract: The object of the present invention is to provide a polishing apparatus having a grinding member in a compact design that can provide high efficiency for both polishing and dressing operations, and prevents tilting of the grinding member even if the rotation axis thereof is moved away from the outer periphery of the object. A polishing apparatus for an object, comprises: an object holder for holding an object to be polished, such that a surface of the object to be polished faces upward; a dresser disk holder for holding a dresser disk for dressing, such that a dressing surface thereof faces upward; and a grinding member for polishing the object, and for being dressed by the dresser disk, by pressing and sliding the grinding member relative to the object and the dresser disk.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: June 11, 2002
    Assignee: Ebara Corporation
    Inventors: Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada, Kazuto Hirokawa
  • Patent number: 6398626
    Abstract: A polishing apparatus is used for polishing a plate-like workpiece, such as a semiconductor wafer or a glass substrate. The polishing apparatus has a polishing table having a polishing surface thereon, a plurality of workpiece holders each for holding a workpiece and pressing the workpiece against the polishing surface, and a dresser for dressing the polishing surface by pressing a desired position of the polishing surface.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: June 4, 2002
    Assignee: Ebara Corporation
    Inventors: Hisanori Matsuo, Hirokuni Hiyama, Yutaka Wada, Kazuto Hirokawa, Tetsuji Togawa
  • Patent number: 6390901
    Abstract: An object of the present invention is to provide a polishing apparatus with a grinding plate that can easily and reliably be installed on and detached from a turntable. The polishing apparatus has a grinding plate tool, fixedly mounted on the turntable, which includes the grinding plate, and a top ring for holding a workpiece to be polished and pressing the workpiece against the grinding plate in sliding contact therewith for polishing a surface of the workpiece to a flat, mirror finish. A clamping mechanism is mounted in the turntable for fixing an outer circumferential flange of the grinding plate tool to the turntable.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: May 21, 2002
    Assignee: Ebara Corporation
    Inventors: Hirokuni Hiyama, Yutaka Wada, Kazuto Hirokawa, Hisanori Matsuo, Tetsuji Togawa, Satoshi Wakabayashi
  • Publication number: 20020016139
    Abstract: A polishing tool applicable to various types of polishing objects is provided that enables to stabilize the polishing speed and to obtain superior surface details while reducing the formation of defects such as scratches on the polished surface. The tool is operated by pressing and sliding on the polishing object in a swinging motion and the surface is polished with abrasive particles imbedded in a matrix comprised primarily of a thermoplastic resin such as butadiene styrene, polybutadiene or MBS resin of acryl rubber group. The polishing tool includes fixed-abrasive polishing tool that contains abrasive particles within the polishing tool, or a polishing pad containing non-fixed-abrasive particles.
    Type: Application
    Filed: July 24, 2001
    Publication date: February 7, 2002
    Inventors: Kazuto Hirokawa, Hirokuni Hiyama, Yutaka Wada, Hisanori Matsuo
  • Publication number: 20020006768
    Abstract: An abrading plate has self-stopping capability such that when an object, such as a semiconductor wafer having a device structure that includes raised regions and depressed regions fabricated on the surface, is being polished, the raised regions are removed and polishing stops automatically. The abrading plate, to produce a flat and mirror polished surface on an object, has abrasive particles having a chemical purity of not less than 90% and a particle size of not more than two micrometers, a binder material, and a given volume of porosity. A ratio of the abrasive particles and the binder material is not less than 1:0.5 by volume, and proportions of abrasive particles, a binder material and porosity are, respectively, not less than 10%, not more than 60% and 10˜40 by volume. A surface is polished for a given duration with a liquid not containing abrasive particles so as to eliminate the raised regions to obtain a flat surface.
    Type: Application
    Filed: July 30, 2001
    Publication date: January 17, 2002
    Inventors: Yutaka Wada, Hirokuni Hiyama, Kazuto Hirokawa, Hisanori Matsuo