Patents by Inventor Laurence McGhee

Laurence McGhee 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: 7314823
    Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: January 1, 2008
    Assignee: DuPont Airproducts NanoMaterials LLC
    Inventors: Robert J. Small, Laurence McGhee, David J. Maloney, Maria L. Peterson
  • Patent number: 7276180
    Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: October 2, 2007
    Assignee: DuPont Air Products NanoMaterials LLC
    Inventors: Robert J. Small, Laurence McGhee, David J. Maloney, Maria L. Peterson
  • Patent number: 7033942
    Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: April 25, 2006
    Assignee: DuPont Air Products NanoMaterials L.L.C.
    Inventors: Robert J. Small, Laurence McGhee, David J. Maloney, Maria L. Peterson
  • Publication number: 20050266689
    Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material.
    Type: Application
    Filed: August 2, 2005
    Publication date: December 1, 2005
    Inventors: Robert Small, Laurence McGhee, David Maloney, Maria Peterson
  • Publication number: 20040072439
    Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 15, 2004
    Applicant: EKC Technology, Inc.
    Inventors: Robert J, Small, Laurence McGhee, David J. Maloney, Maria L. Peterson
  • Patent number: 6635186
    Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: October 21, 2003
    Assignee: EKC Technology, Inc.
    Inventors: Robert J. Small, Laurence McGhee, David J. Maloney, Maria L. Peterson
  • Publication number: 20030176068
    Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material.
    Type: Application
    Filed: March 27, 2003
    Publication date: September 18, 2003
    Applicant: EKC Technology, Inc.
    Inventors: Robert J. Small, Laurence McGhee, David J. Maloney, Maria L. Peterson
  • Publication number: 20020111024
    Abstract: A composition for chemical mechanical polishing that includes a slurry is described. A sufficient amount of a selectively oxidizing and reducing compound is provided to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of a metal and a dielectric material. A composition may include an effective amount of an hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, and a peracetic acid or periodic acid. A method for chemical mechanical polishing is described which includes applying a slurry that includes the composition to a surface to produce mechanical removal of the metal and dielectric material.
    Type: Application
    Filed: November 6, 2001
    Publication date: August 15, 2002
    Inventors: Robert J. Small, Laurence McGhee, David J. Maloney, Maria L. Peterson
  • Patent number: 6313039
    Abstract: A composition for chemical mechanical polishing that includes a slurry is described. A sufficient amount of a selectively oxidizing and reducing compound is provided to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of a metal and a dielectric material. A composition may include an effective amount of an hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, and a peracetic acid or periodic acid. A method for chemical mechanical polishing is described which includes applying a slurry that includes the composition to a surface to produce mechanical removal of the metal and dielectric material.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: November 6, 2001
    Assignee: EKC Technology, Inc.
    Inventors: Robert J. Small, Laurence McGhee, David J. Maloney, Maria L. Peterson
  • Patent number: 6117783
    Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: September 12, 2000
    Assignee: EKC Technology, Inc.
    Inventors: Robert J. Small, Laurence McGhee, David J. Maloney, Maria L. Peterson