Patents by Inventor Mary Kulp

Mary Kulp 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: 20060226567
    Abstract: The present invention provides a method of forming a chemical mechanical polishing pad comprising providing a polymeric matrix with fluid-filled unexpanded microspheres, curing the polymeric matrix and heating the polymeric matrix and the microspheres to expand the microspheres.
    Type: Application
    Filed: April 4, 2006
    Publication date: October 12, 2006
    Inventors: David James, Mary Kulp, John Roberts
  • Publication number: 20050171224
    Abstract: The polishing pad is suitable for planarizing at least one of semiconductor, optical and magnetic substrates. The polishing pad includes a cast polyurethane polymeric material formed with an isocyanate-terminated reaction product formed from a prepolymer reaction of a prepolymer polyol and a polyfunctional isocyanate. The isocyanate-terminated reaction product has 4.5 to 8.7 weight percent NCO reaction group; and the isocyanate-terminated reaction product is cured with a curative agent selected from the group comprising curative polyamines, curative polyols, curative alcoholamines and mixtures thereof. The polishing pad contains at least 0.1 volume percent filler or porosity.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 4, 2005
    Inventor: Mary Kulp
  • Publication number: 20050171225
    Abstract: The polishing pad is suitable for planarizing at least one of semiconductor, optical and magnetic substrates. The polishing pad includes a cast polyurethane polymeric material formed with an isocyanate-terminated reaction product formed from a prepolymer reaction of a prepolymer polyol and a polyfunctional isocyanate. The isocyanate-terminated reaction product has 4.5 to 8.7 weight percent unreacted NCO; and the isocyanate-terminated reaction product is cured with a curative agent selected from the group comprising curative polyamines, curative polyols, curative alcoholamines and mixtures thereof. The polishing pad contains at least 0.1 volume percent filler or porosity.
    Type: Application
    Filed: January 13, 2005
    Publication date: August 4, 2005
    Inventor: Mary Kulp
  • Publication number: 20050079806
    Abstract: A polishing pad is useful planarizing semiconductor substrates. The polishing pad comprises a polymeric material having a porosity of at least 0.1 volume percent, a KEL energy loss factor at 40° C. and 1 rad/sec of 385 to 750 l/Pa and a modulus E? at 40° C. and 1 rad/sec of 100 to 400 MPa.
    Type: Application
    Filed: September 10, 2004
    Publication date: April 14, 2005
    Inventors: David James, Mary Kulp