Patents by Inventor Toshio Fujino

Toshio Fujino 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: 20070212860
    Abstract: A method for crystallizing a semiconductor thin film is provided. The method includes continuously irradiating an energy beam on a semiconductor thin film while scanning at a given speed, wherein the semiconductor thin film is completely melted and the irradiation conditions of the energy beam are so set that the semiconductor thin film at a central position of the energy beam is finally crystallized in association with the scanning with the energy beam.
    Type: Application
    Filed: March 12, 2007
    Publication date: September 13, 2007
    Applicant: SONY CORPORATION
    Inventors: Toshio Fujino, Akio Machida, Tadahiro Kono
  • Publication number: 20070212858
    Abstract: A method for crystallizing a semiconductor thin film is provided. The method includes continuously irradiating an energy beam on a semiconductor thin film while scanning at a given speed. The energy beam is scanned in parallel lines while keeping pitches of not larger than an irradiation radius of the energy beam to grow band-shaped crystal grains in a direction different from a scanning direction of the energy beam.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 13, 2007
    Applicant: SONY CORPORATION
    Inventors: Toshio Fujino, Akio Machida, Tadahiro Kono
  • Publication number: 20070212825
    Abstract: A thin film semiconductor device is provided that includes a semiconductor thin film and a gate electrode. The semiconductor thin film has an active region turned into a polycrystalline region through irradiation with an energy beam. The gate electrode is provided to traverse the active region. In a channel part that is the active region overlapping with the gate electrode, a crystalline state is changed cyclically in a channel length direction, and areas each having a substantially same crystalline state traverse the channel part.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 13, 2007
    Applicant: SONY CORPORATION
    Inventors: Akio Machida, Toshio Fujino, Tadahiro Kono
  • Patent number: 7189665
    Abstract: A manufacturing method for a crystalline semiconductor material including a plurality of semiconductor crystal grains is provided. The manufacturing method includes forming an amorphous or polycrystalline semiconductor layer on a substrate having a flat surface; forming a plurality of projections each having a side wall surface substantially perpendicular to the flat surface of the substrate, a height set in the range of about 1 nm to less than or equal to about ¼ of the thickness of the semiconductor layer, and a lateral dimension set in the range of about 3 ?m to about 18 ?m in a direction parallel to the flat surface of the substrate; and heating the semiconductor layer a number of times by using a pulsed laser thereby forming the crystalline semiconductor material including the crystal grains each having a specific plane orientation with respect to a direction perpendicular to the flat surface of the substrate so that the crystal grains respectively correspond to the projections.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: March 13, 2007
    Assignee: Sony Corporation
    Inventors: Kazushi Nakano, Yukihisa Hitsuda, Toshio Fujino, Michinori Shiomi, Junichi Sato
  • Publication number: 20070051302
    Abstract: Disclosed are a method of producing a crystalline semiconductor material capable of improving the crystallinity and a method of fabricating a semiconductor device using the crystalline semiconductor material. An amorphous film is uniformly irradiated with a pulse laser beam (energy beam) emitted from an XeCl excimer laser by 150 times so as to heat the amorphous film at such a temperature as to partially melt crystal grains having the {100} orientations with respect to the vertical direction of a substrate and melt amorphous film or crystal grains having face orientations other than the {100} orientations. Silicon crystals having the {100} orientations newly occur between a silicon oxide film and liquid-phase silicon and are bonded to each other at random, to newly form crystal grains having the {100} orientations.
    Type: Application
    Filed: October 26, 2006
    Publication date: March 8, 2007
    Inventors: Dharam Gosain, Akio Machida, Kazushi Nakano, Toshio Fujino, Junichi Sato
  • Patent number: 7169690
    Abstract: Disclosed are a method of producing a crystalline semiconductor material capable of improving the crystallinity and a method of fabricating a semiconductor device using the crystalline semiconductor material. An amorphous film is uniformly irradiated with a pulse laser beam (energy beam) emitted from an XeCl excimer laser by 150 times so as to heat the amorphous film at such a temperature as to partially melt crystal grains having the {100} orientations with respect to the vertical direction of a substrate and melt amorphous film or crystal grains having face orientations other than the {100} orientations. Silicon crystals having the {100} orientations newly occur between a silicon oxide film and liquid-phase silicon and are bonded to each other at random, to newly form crystal grains having the {100} orientations.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: January 30, 2007
    Assignee: Sony Corporation
    Inventors: Dharam Pal Gosain, Akio Machida, Kazushi Nakano, Toshio Fujino, Junichi Sato
  • Patent number: 7144793
    Abstract: Disclosed are a method of producing a crystalline semiconductor material capable of improving the crystallinity and a method of fabricating a semiconductor device using the crystalline semiconductor material. An amorphous film is uniformly irradiated with a pulse laser beam (energy beam) emitted from an XeCl excimer laser by 150 times so as to heat the amorphous film at such a temperature as to partially melt crystal grains having the {100} orientations with respect to the vertical direction of a substrate and melt amorphous film or crystal grains having face orientations other than the {100} orientations. Silicon crystals having the {100} orientations newly occur between a silicon oxide film and liquid-phase silicon and are bonded to each other at random, to newly form crystal grains having the {100} orientations.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: December 5, 2006
    Assignee: Sony Corporation
    Inventors: Dharam Pal Gosain, Akio Machida, Kazushi Nakano, Toshio Fujino, Junichi Sato
  • Publication number: 20060084246
    Abstract: A manufacturing method for a crystalline semiconductor material including a plurality of semiconductor crystal grains is provided. The manufacturing method includes forming an amorphous or polycrystalline semiconductor layer on a substrate having a flat surface; forming a plurality of projections each having a side wall surface substantially perpendicular to the flat surface of the substrate, a height set in the range of about 1 nm to less than or equal to about ¼ of the thickness of the semiconductor layer, and a lateral dimension set in the range of about 3 ?m to about 18 ?m in a direction parallel to the flat surface of the substrate; and heating the semiconductor layer a number of times by using a pulsed laser thereby forming the crystalline semiconductor material including the crystal grains each having a specific plane orientation with respect to a direction perpendicular to the flat surface of the substrate so that the crystal grains respectively correspond to the projections.
    Type: Application
    Filed: December 2, 2005
    Publication date: April 20, 2006
    Inventors: Kazushi Nakano, Yukihisa Hitsuda, Toshio Fujino, Michinori Shiomi, Junichi Sato
  • Patent number: 6972246
    Abstract: A manufacturing method for a crystalline semiconductor material including a plurality of semiconductor crystal grains is provided. The manufacturing method includes forming an amorphous or polycrystalline semiconductor layer on a substrate having a flat surface; forming a plurality of projections each having a side wall surface substantially perpendicular to the flat surface of the substrate, a height set in the range of about 1 nm to less than or equal to about ¼ of the thickness of the semiconductor layer, and a lateral dimension set in the range of about 3 ?m to about 18 ?m in a direction parallel to the flat surface of the substrate; and heating the semiconductor layer a number of times by using a pulsed laser thereby forming the crystalline semiconductor material including the crystal grains each having a specific plane orientation with respect to a direction perpendicular to the flat surface of the substrate so that the crystal grains respectively correspond to the projections.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: December 6, 2005
    Assignee: Sony Corporation
    Inventors: Kazushi Nakano, Yukihisa Hitsuda, Toshio Fujino, Michinori Shiomi, Junichi Sato
  • Publication number: 20050172888
    Abstract: Disclosed are a method of producing a crystalline semiconductor material capable of improving the crystallinity and a method of fabricating a semiconductor device using the crystalline semiconductor material. An amorphous film is uniformly irradiated with a pulse laser beam (energy beam) emitted from an XeCl excimer laser by 150 times so as to heat the amorphous film at such a temperature as to partially melt crystal grains having the {100} orientations with respect to the vertical direction of a substrate and melt amorphous film or crystal grains having face orientations other than the {100} orientations. Silicon crystals having the {100} orientations newly occur between a silicon oxide film and liquid-phase silicon and are bonded to each other at random, to newly form crystal grains having the {100} orientations.
    Type: Application
    Filed: April 5, 2005
    Publication date: August 11, 2005
    Inventors: Dharam Gosain, Akio Machida, Kazushi Nakano, Toshio Fujino, Junichi Sato
  • Publication number: 20050006646
    Abstract: A manufacturing method for a crystalline semiconductor material including a plurality of semiconductor crystal grains is provided. The manufacturing method includes forming an amorphous or polycrystalline semiconductor layer on a substrate having a flat surface; forming a plurality of projections each having a side wall surface substantially perpendicular to the flat surface of the substrate, a height set in the range of about 1 nm to less than or equal to about ¼ of the thickness of the semiconductor layer, and a lateral dimension set in the range of about 3 ?m to about 18 ?m in a direction parallel to the flat surface of the substrate; and heating the semiconductor layer a number of times by using a pulsed laser thereby forming the crystalline semiconductor material including the crystal grains each having a specific plane orientation with respect to a direction perpendicular to the flat surface of the substrate so that the crystal grains respectively correspond to the projections.
    Type: Application
    Filed: May 28, 2004
    Publication date: January 13, 2005
    Inventors: Kazushi Nakano, Yukihisa Hitsuda, Toshio Fujino, Michinori Shiomi, Junichi Sato
  • Publication number: 20040209447
    Abstract: Disclosed are a method of producing a crystalline semiconductor material capable of improving the crystallinity and a method of fabricating a semiconductor device using the crystalline semiconductor material. An amorphous film is uniformly irradiated with a pulse laser beam (energy beam) emitted from an XeCl excimer laser by 150 times so as to heat the amorphous film at such a temperature as to partially melt crystal grains having the {100} orientations with respect to the vertical direction of a substrate and melt amorphous film or crystal grains having face orientations other than the {100} orientations. Silicon crystals having the {100} orientations newly occur between a silicon oxide film and liquid-phase silicon and are bonded to each other at random, to newly form crystal grains having the {100} orientations.
    Type: Application
    Filed: August 21, 2003
    Publication date: October 21, 2004
    Inventors: Dharam Pal Gosain, Akio Machida, Kazushi Nakano, Toshio Fujino, Junichi Sato
  • Publication number: 20010056378
    Abstract: A method and system for managing parts can reduce the delivery time of the parts for fluid machinery such as pumps and can reduce the cost of stocking spare parts for the fluid machinery. The method comprises creating a compatible-parts database for a plurality of fluid machinery of a user in association with a common part used therein. The compatible-parts database identifying a part with a part identifier uniquely predetermined for the part. The method further comprises presenting the compatible-parts database to the user, and ordering a part for fluid machinery from a service provider by referring to the compatible-parts database.
    Type: Application
    Filed: January 3, 2001
    Publication date: December 27, 2001
    Applicant: EBARA CORPORATION
    Inventors: Sadao Honjo, Toshio Fujino, Teruo Katayama, Susumu Shiga