Patents by Inventor Deepak Kulkarni

Deepak Kulkarni 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: 20080182490
    Abstract: A method and system for pad conditioning in an electrochemical mechanical planarization (eCMP) tool is disclosed. A polishing pad having a pad electrode is placed onto a platen of the eCMP tool. A conditioning disk, having a second electrode is placed on the polishing pad, such that the pad electrode and conditioning disk form an electrode pair. An electric potential is established between the conditioning disk and the pad electrode. This causes debris from the polishing pad to become ionized, and attracted to the conditioning disk. The conditioning disk is then removed from the eCMP tool, allowing the eCMP tool to resume operation on normal semiconductor wafers.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Rui Fang, Deepak Kulkarni, David K. Watts