Patents by Inventor Robert B. Majewski

Robert B. Majewski 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).

  • Patent number: 6712020
    Abstract: A toroidal plasma source (28) within a substrate processing chamber (10). The toroidal plasma source forms a poloidal plasma with theta symmetry. The poloidal plasma current is essentially parallel to a surface of the plasma generating structure, thus reducing sputtering erosion of the inner walls. The plasma current is similarly essentially parallel to a process surface (32) of a substrate (34) within the chamber. In a further embodiment, a shaped member (66) between the substrate and the plasma source controls the plasma density in a selected fashion to enhance plasma processing uniformity.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: March 30, 2004
    Assignee: Applied Materials Inc.
    Inventors: Michael S. Cox, Canfeng Lai, Robert B. Majewski, David P. Wanamaker, Christopher T. Lane, Peter Loewenhardt, Shamouil Shamouilian, John P. Parks
  • Publication number: 20020197416
    Abstract: A gas jet deposition method and apparatus includes a plurality of ports to supply plasma to the substrate on which deposition is to occur. A reagent gas is introduced either into the ports or into the expansion chamber. The use of multiple ports results in a much more uniform deposition of material on the substrate. In preferred embodiments, a carrier gas plasma is created using an excitation source such as a microwave power supply.
    Type: Application
    Filed: June 21, 2001
    Publication date: December 26, 2002
    Inventors: Robert B. Majewski, Alain Duboust, Gang Chen, Sean Li, Jallepally Ravi, Liang-Yuh Chen, Daniel Carl
  • Publication number: 20020157793
    Abstract: A toroidal plasma source (28) within a substrate processing chamber (10). The toroidal plasma source forms a poloidal plasma with theta symmetry. The poloidal plasma current is essentially parallel to a surface of the plasma generating structure, thus reducing sputtering erosion of the inner walls. The plasma current is similarly essentially parallel to a process surface (32) of a substrate (34) within the chamber. In a further embodiment, a shaped member (66) between the substrate and the plasma source controls the plasma density in a selected fashion to enhance plasma processing uniformity.
    Type: Application
    Filed: June 12, 2002
    Publication date: October 31, 2002
    Applicant: Applied Materials, Inc.
    Inventors: Michael S. Cox, Canfeng Lai, Robert B. Majewski, David P. Wanamaker, Christopher T. Lane, Peter Loewenhardt, Shamouil Shamouilian, John P. Parks
  • Patent number: 6418874
    Abstract: A toroidal plasma source (28) within a substrate processing chamber (10). The toroidal plasma source forms a poloidal plasma with theta symmetry. The poloidal plasma current is essentially parallel to a surface of the plasma generating structure, thus reducing sputtering erosion of the inner walls. The plasma current is similarly essentially parallel to a process surface (32) of a substrate (34) within the chamber. In a further embodiment, a shaped member (66) between the substrate and the plasma source controls the plasma density in a selected fashion to enhance plasma processing uniformity.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: July 16, 2002
    Assignee: Applied Materials, Inc.
    Inventors: Michael S. Cox, Canfeng Lai, Robert B. Majewski, David P. Wanamaker, Christopher T. Lane, Peter Loewenhardt, Shamouil Shamouilian, John P. Parks
  • Patent number: 6176198
    Abstract: The invention provides a deposition system and methods of depositing materials onto substrates. In one aspect, a modular processing chamber is provided which includes a chamber body defining a processing region. The chamber body includes a removable gas feedthrough, an electrical feedthrough, a gas distribution assembly mounted on a chamber lid and a microwave applicator for generating reactive gases remote from the processing region.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: January 23, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Yeh-Jen Kao, Fong M. Chang, Robert B. Majewski, John Parks, David Wanamaker, Yen-Kun Wang