Patents by Inventor Melvin Keith Carter

Melvin Keith Carter 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).

  • Compositions for chemical mechanical planarization of tantalum and tantalum nitride
    Publication number: 20030131535
    Abstract: The present invention relates to compositions for the chemical mechanical planarization (“CMP”) of barrier/adhesion layers, particularly Ta/TaN barrier/adhesion layers as occur in the manufacture of integrated circuits. CMP compositions comprise an aqueous solution of oxidizer and colloidal silica abrasive. Oxidizers include hydroxylamine nitrate, nitric acid, benzotriazole, ammonium nitrate, aluminum nitrate, hydrazine and mixtures thereof in aqueous solution.
    Type: Application
    Filed: September 25, 2001
    Publication date: July 17, 2003
    Inventors: Robert J. Small, Maria Peterson, Tuan Troung, Melvin Keith Carter, Lily Yao
  • Method and apparatus for determining organic carbon in sulfureous compounds
    Patent number: 4053281
    Abstract: Measured sample quantities of sulfureous matter are introduced into a sealed chamber where the samples are pyrolyzed to form sulfur dioxide and sulfur trioxide gases and to oxidize organic substances to form carbon dioxide gas. The gases are then passed through a free sulfur-absorbing packing and into a scrubbing zone wherein transition metal amine complex is used to remove sulfureous compounds without reaction with the carbon dioxide gas. The scrubbed gases are then analyzed to determine the carbon dioxide content thereof.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: October 11, 1977
    Assignee: Envirotech Corporation
    Inventor: Melvin Keith Carter