Patents by Inventor Tatsuya Mise

Tatsuya Mise 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: 9470940
    Abstract: A semiconductor device includes a first electrode layer and a second electrode layer disposed over a substrate, a first insulating layer disposed over the first electrode layer, and a reflective electrode layer disposed on the first insulating layer and electrically connected to the first electrode layer, wherein the second electrode layer is exposed externally, and a thickness of the second electrode layer is greater than a thickness of the reflective electrode layer.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: October 18, 2016
    Assignee: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Tomiyasu Saito, Tatsuya Mise, Yoshio Matsuzawa, Tetsuya Takeuchi
  • Publication number: 20150160499
    Abstract: A semiconductor device includes a first electrode layer and a second electrode layer disposed over a substrate, a first insulating layer disposed over the first electrode layer, and a reflective electrode layer disposed on the first insulating layer and electrically connected to the first electrode layer, wherein the second electrode layer is exposed externally, and a thickness of the second electrode layer is greater than a thickness of the reflective electrode layer.
    Type: Application
    Filed: October 17, 2014
    Publication date: June 11, 2015
    Inventors: Tomiyasu Saito, Tatsuya Mise, Yoshio Matsuzawa, Tetsuya Takeuchi
  • Patent number: 8901743
    Abstract: A method of fabricating a semiconductor device includes forming a first insulation film over a semiconductor substrate, the semiconductor substrate including an outer region and an inner region located at an inner side of the outer region, forming a first wiring over the first insulation film in the inner region, forming a second insulation film over the first wiring and over the first insulation film, decreasing a film thickness of the second insulation film in the inner region with regard to a film thickness of the second insulation film in the outer region, and polishing the second insulation film after the decreasing of the film thickness of the second insulation film.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: December 2, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Tomiyasu Saito, Tatsuya Mise, Hiromichi Ichikawa, Tetsuya Takeuchi, Genshi Okuda
  • Publication number: 20130277859
    Abstract: A method of fabricating a semiconductor device includes forming a first insulation film over a semiconductor substrate, the semiconductor substrate including an outer region and an inner region located at an inner side of the outer region, forming a first wiring over the first insulation film in the inner region, forming a second insulation film over the first wiring and over the first insulation film, decreasing a film thickness of the second insulation film in the inner region with regard to a film thickness of the second insulation film in the outer region, and polishing the second insulation film after the decreasing of the film thickness of the second insulation film.
    Type: Application
    Filed: January 8, 2013
    Publication date: October 24, 2013
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Tomiyasu Saito, Tatsuya Mise, Hiromichi Ichikawa, Tetsuya Takeuchi, Genshi Okuda
  • Patent number: 5258095
    Abstract: With the method for producing EPROMs based on selfalignment using a gate electrode as the mask for impurity ion doping, when selectively removing an oxide film between the control gate electrode and the floating gate electrode, the side surface of control gate electrode can be formed flat without projected and recessed areas by removing a thin film deposited at random on the side surface of the upper control gate electrode. Thus, the desired channel region width can be formed, even when impurity ions are doped, with the gate electrode used as the self-alignment mask. Controllability of EPROM production can, therefore, be remarkably improved.
    Type: Grant
    Filed: February 20, 1992
    Date of Patent: November 2, 1993
    Assignee: Fujitsu Limited
    Inventors: Shunichi Nagata, Tatsuya Mise
  • Patent number: 5155064
    Abstract: A semiconductor device having a multi-level interconnection structure includes an active device, a substrate supporting the active device thereon, and a first insulator layer provided so as to cover the substrate including the active device. A first conductor pattern is provided on the first insulator layer. A planarizing layer has a planarized top surface provided on the first insulator layer so as to bury the first conductor pattern underneath. A second insulator layer is provided on the planarized top surface of the planarizing layer. A contact hole is provided on the second insulator layer so as to expose a desired part of the first conductor pattern. A second conductor pattern is provided on the second insulator layer in correspondence to the contact hole so as to fill the contact hole and so as to make a contact to the exposed part of the first conductor pattern.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: October 13, 1992
    Assignee: Fujitsu Limited
    Inventor: Tatsuya Mise
  • Patent number: 5068711
    Abstract: A semiconductor device having a multi-level interconnection structure includes an active device, a substrate supporting the active device thereon, and a first insulator layer provided so as to cover the substrate including the active device. A first conductor pattern is provided on the first insulator layer. A planarizing layer has a planarized top surface provided on the first insulator layer so as to bury the first conductor pattern underneath. A second insulator layer is provided on the planarized top surface of the planarizing layer. A contact hole is provided on the second insulator layer so as to expose a desired part of the first conductor pattern. A second conductor pattern is provided on the second insulator layer in correspondence to the contact hole so as to fill the contact hole and so as to make a contact to the exposed part of the first conductor pattern.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: November 26, 1991
    Assignee: Fujitsu Limited
    Inventor: Tatsuya Mise