Patents Represented by Attorney Advantage Law Group, LLC

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  • Method of forming contact hole, method of manufacturing wiring board, method of manufacturing semiconductor device, and method of manufacturing electro-optical device
    Patent number: 7589018
    Abstract: A method of forming a contact hole includes forming a first conductive layer patterned so as to serve as an electrode or a wiring on a substrate, forming an insulation layer on the substrate and the first conductive layer, inserting a cutting instrument into the insulation layer at an angle to a surface of the insulation layer, the angle being in the range from 5° to 80°, and forming a tapered opening extending to the electrode or the wiring in the insulation layer by drawing out the cutting instrument.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: September 15, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Soichi Moriya, Takeo Kawase, Mitsuaki Harada, Takehisa Saeki, Tomoyuki Okuyama, Hirofumi Hokari, Takashi Aoki
  • Electro-optical device, method for manufacturing electro-optical device, and electronic apparatus
    Patent number: 7449761
    Abstract: An electro-optical device includes an anti-reflective layer arranged on the face of a first metal layer that is closer to a semiconductor layer than a second metal layer. The anti-reflective layer covers the channel region as viewed in plan view.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: November 11, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Masashi Nakagawa