Patents by Inventor Thomas K. Puthanangady

Thomas K. Puthanangady 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).

  • Corrosion-resistant CMP conditioning tools and methods for making and using same
    Patent number: 8905823
    Abstract: An abrasive tool for conditioning CMP pads includes abrasive grains coupled to a substrate through a metal bond and a coating, e.g., a fluorine-doped nanocomposite coating. The abrasive grains can be arranged in a self-avoiding random distribution. In one implementation, an abrasive tool includes a coated plate and a coated abrasive article that has two abrading surfaces. Other implementations related to a process for producing an abrasive tool that includes a coating at one or more of its surfaces. Also described are methods for dressing a CMP pad.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: December 9, 2014
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Jianhui Wu, Taewook Hwang, Ramanujam Vedantham, Charles Dinh-Ngoc, Thomas K. Puthanangady, Eric M. Schulz, Srinivasan Ramanath
  • Corrosion-Resistant CMP Conditioning Tools and Methods for Making and Using Same
    Publication number: 20100330886
    Abstract: An abrasive tool for conditioning CMP pads includes abrasive grains coupled to a substrate through a metal bond and a coating, e.g., a fluorine-doped nanocomposite coating. The abrasive grains can be arranged in a self-avoiding random distribution. In one implementation, an abrasive tool includes a coated plate and a coated abrasive article that has two abrading surfaces. Other implementations related to a process for producing an abrasive tool that includes a coating at one or more of its surfaces. Also described are methods for dressing a CMP pad.
    Type: Application
    Filed: June 1, 2010
    Publication date: December 30, 2010
    Applicants: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Jianhui Wu, Taewook Hwang, Ramanujam Vedantham, Charles Dinh-Ngoc, Thomas K. Puthanangady, Eric M. Schulz, Srinivasan Ramanath