Patents by Inventor Fernando Dias-Costa

Fernando Dias-Costa 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).

  • Method for making an integrated optical circuit
    Patent number: 6821903
    Abstract: In order to manufacture an integrated optical circuit, a first mask is formed on a first region of a substrate and defines the shape of at least one optical device (such as a waveguide). A second mask is formed on a second region of the substrate and corresponds to an optical structure (such as a periodic array structure or photonic crystal) to be formed in a second region of the substrate distinct from the first region. The first mask and the second mask are each made of a material which substantially resists a predetermined etching gas. The second mask may formed, patterned, and etched without adversely affecting the characteristics of the first mask.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: November 23, 2004
    Assignee: Corning Incorported
    Inventors: Jean-Charles J. C. Cotteverte, Fernando Dias-Costa, Christophe F. P. Renvaze, Dusan Nedeljkovic
  • Method for making an integrated optical circuit
    Publication number: 20020074307
    Abstract: In order to manufacture an integrated optical circuit, a first mask is formed on a first region of a substrate and defines the shape of at least one optical device (such as a waveguide). A second mask is formed on a second region of the substrate and corresponds to an optical structure (such as a periodic array structure or photonic crystal) to be formed in a second region of the substrate distinct from the first region. The first mask and the second mask are each made of a material which substantially resists a predetermined etching gas. The second mask may formed, patterned, and etched without adversely affecting the characteristics of the first mask.
    Type: Application
    Filed: December 5, 2000
    Publication date: June 20, 2002
    Inventors: Jean-Charles J.C. Cotteverte, Fernando Dias-Costa, Christophe F.P. Renvaze, Dusan Nedeljkovic