Patents by Inventor Tatsuya Uzuka

Tatsuya Uzuka 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: 7927935
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: April 19, 2011
    Assignees: Sharp Kabushiki Kaisha, Japan Laser Corporation
    Inventors: Nobuo Sasaki, Tatsuya Uzuka
  • Patent number: 7410508
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: August 12, 2008
    Assignees: Sharp Kabushiki Kaisha, Japan Laser Corporation
    Inventors: Nobuo Sasaki, Tatsuya Uzuka
  • Publication number: 20080062498
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Applicants: Sharp Kabushiki Kaisha, Japan Laser Corporation
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Patent number: 7115457
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: October 3, 2006
    Assignees: Sharp Kabushiki Kaisha, Japan Laser Corporation
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Publication number: 20050282408
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 22, 2005
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Patent number: 6977775
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: December 20, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Publication number: 20050264824
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 1, 2005
    Applicant: Fujitsu Limited
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Publication number: 20050233556
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Application
    Filed: June 8, 2005
    Publication date: October 20, 2005
    Applicant: Fujitsu Limited
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Publication number: 20050227504
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Application
    Filed: June 8, 2005
    Publication date: October 13, 2005
    Applicant: Fujitsu Limited
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Publication number: 20050225771
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Application
    Filed: June 8, 2005
    Publication date: October 13, 2005
    Applicant: Fujitsu Limited
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Publication number: 20050227460
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Application
    Filed: June 8, 2005
    Publication date: October 13, 2005
    Applicant: Fujitsu Limited
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki
  • Publication number: 20050127045
    Abstract: The present invention relates to a laser crystallization apparatus and a laser crystallization method that can achieve high throughput even when a CW laser is used. The laser crystallization apparatus includes a movable stage supporting a substrate on which a semiconductor layer is formed, a device directing a laser beam to a plurality of optical paths in a time-division manner, and optical devices condensing and applying the laser beam passing through the optical paths to the semiconductor layer on the substrate supported by the stage. A first region of the semiconductor layer is scanned with the laser beam in one direction and a second region of the semiconductor layer is scanned with the laser beam in the reverse direction.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 16, 2005
    Inventors: Nobuo Sasaki, Tatsuya Uzuka
  • Publication number: 20030216012
    Abstract: Laser beams emitted by a plurality of laser sources are divided into a plurality of sub-beams, which are irradiated onto selected portions of an amorphous semiconductor on a substrate to crystallize the amorphous semiconductor. A difference in diverging angles between the laser beams is corrected by a beam expander. The apparatus includes a sub-beam selective irradiating system including a sub-beam dividing assembly and a sub-beam focussing assembly. Also, the apparatus includes laser sources, a focussing optical system, and a combining optical system. A stage for supporting a substrate includes a plurality of first stage members, a second stage member disposed above the first stage members, and a third stage member 38C, rotatably disposed above the second stage to support an amorphous semiconductor.
    Type: Application
    Filed: May 13, 2003
    Publication date: November 20, 2003
    Applicants: FUJITSU LIMITED, JAPAN LASER CORP.
    Inventors: Nobuo Sasaki, Tatsuya Uzuka, Koichi Ohki