Patents by Inventor Donald Delehanty

Donald Delehanty 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).

  • Publication number: 20050079709
    Abstract: Disclosed herein are a system and method of polishing a layer of a substrate. The disclosed method includes providing a polishing apparatus adapted to impart relative movement between a polishing pad and a substrate having a first layer to be polished; providing a liquid medium having a pH between 4 and 11 to an interface between the substrate and the polishing pad, the liquid medium including a pH controlling substance including at least one of an acid and a base, a carbonate and a stabilizer additive comprising at least one selected from the group consisting of amino acids and polyacrylic acid; and moving at least one of the substrate and the polishing pad relative to the other to polish the layer of the substrate.
    Type: Application
    Filed: October 13, 2003
    Publication date: April 14, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Donald Delehanty, James Hannah, Daniel Heenan, Fen Jamin, Laertis Economikos
  • Publication number: 20050042877
    Abstract: A method and polishing system for planarizing a substrate having one or more materials formed thereon. The method generally includes positioning the substrate in proximity with a polishing pad, dispensing a polishing fluid to the polishing pad, the polishing fluid being subjected to carbonation prior to being dispensed to the polishing pad, and polishing the substrate. The polishing system generally includes a polishing platen having a polishing pad disposed thereon and in proximity to the substrate, a controller configured to cause the polishing pad to contact the substrate, and a polishing fluid delivery system to deliver a polishing fluid to the polishing pad, the polishing fluid delivery system including a carbonation system.
    Type: Application
    Filed: April 16, 2004
    Publication date: February 24, 2005
    Inventors: Joseph Salfelder, Wayne Swart, Gopalakrishna Prabhu, Srinivas Mirmira, Laertis Economikos, Fen Jamin, Donald Delehanty, Daniel Heenan, Joseph Danza