Patents by Inventor John P. Parks

John P. Parks 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: 7758404
    Abstract: An apparatus, system and method for cleaning a substrate edge include a composite applicator that cleans bevel polymers deposited on wafer edges using frictional contact in the presence of fluids. The composite applicator includes a support material and a plurality of abrasive particles distributed within and throughout the support material. The composite applicator cleans the edge of the wafer by allowing frictional contact of the plurality of abrasive particles with the edge of the wafer in the presence of fluids, such as liquid chemicals, to cut, rip and tear the bevel polymer from the edge of the wafer.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: July 20, 2010
    Assignee: Lam Research Corporation
    Inventors: Jason A. Ryder, Ji Zhu, Mark Wilcoxson, Fritz Redeker, John P. Parks, Charles Ditmore, Jeffrey G. Gasparitsch
  • 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: 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: 4483023
    Abstract: A high-strength ligament prosthesis having biological acceptability, flexibility, porosity and resistance to prolonged stress in excess of 100 Kg with little change in modulus, and less than 20% ultimate elongation is provided. These characteristics make the high-strength prosthesis favorable for critical applications, such as knee and ankle repair. The high-strength prosthesis is constructed of a biological compatible yarn having an outer shell with an "H-beam" cross-section and a velour surface to encourage rapid invasion by host tissue and a reinforcing core of the same yarn. The ends of the reinforcing core and outer wall are fitted with end tips to limit displacement of the core within the outer shell and to facilitate positioning of the prosthesis during surgery with minimal effort. An enlarged elongated end tip is particularly well adapted for special surgical procedures, such as arthoscopic procedures.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: November 20, 1984
    Assignee: Meadox Medicals, Inc.
    Inventors: Harmon L. Hoffman, Jr., Steven Weinberg, John P. Park