Patents by Inventor Anil Pant

Anil Pant 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: 20050118936
    Abstract: An integrated pad and belt for polishing a surface comprising a belt integrated with a polishing pad that forms a seamless polishing surface.
    Type: Application
    Filed: November 26, 2003
    Publication date: June 2, 2005
    Inventors: Anil Pant, Rahul Jairath, Kamal Mishra, Saket Chadda, Wilbur Krusell
  • Patent number: 6336845
    Abstract: A system and method for planarizing a plurality of semiconductor wafers is provided. The method includes the steps of processing each wafer along the same process path using at least two polishing stations to each partially planarize the wafers. The system includes an improved process path exchanging a detachable wafer carrying head with spindles at each processing point and conveying the detached wafer carrying heads in a rotary index table between processing points. The system also provides for improved polishing accuracy using linear polishers having pneumatically adjustable belt tensioning and aligning capabilities.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: January 8, 2002
    Assignee: Lam Research Corporation
    Inventors: Erik H. Engdahl, Edward T. Ferri, Jr., Wilbur C. Krusell, Rahul Jairath, Randall L. Green, Anil Pant
  • Patent number: 6132289
    Abstract: A technique for integrating a film thickness monitoring sensor within a load and unload unit of a cluster tool for performing chemical-mechanical polishing (CMP). In order to determine CMP performance, a sensor (or sensors) for determining film thickness is/are integrated within the load and unload unit of the cluster tool. Accordingly, film thickness measurements can then be taken at discrete times during the processing cycle without removing the wafer from the cluster tool.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: October 17, 2000
    Assignee: Lam Research Corporation
    Inventors: Michael Labunsky, Andrew Nagengast, Anil Pant