Patents by Inventor David B. James

David B. James 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: 20020109038
    Abstract: An interceptor missile including an infrared radiation detection subsystem and a window assembly in the hull of the missile optically coupled to the infrared radiation detection subsystem. The window assembly includes an inner window, an outer window, and a support subsystem between the inner and the outer windows defining a plurality of infrared transparent fluid flow cooling channels between the inner and outer windows. A source of fluid coupled to the cooling channels for cooling the outer window without adversely affecting the optical properties of either window.
    Type: Application
    Filed: February 9, 2001
    Publication date: August 15, 2002
    Inventors: Lee M. Goldman, Steven R. Collins, David B. James, David M. Blanchard, Steven Wirth
  • Patent number: 6425816
    Abstract: Polishing pads are provided having a polishing surface formed from a material. The polishing surface has a topography produced by a thermoforming process. The topography consists of large and small features that facilitate the flow of polishing fluid and facilitate smoothing and planarizing.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: July 30, 2002
    Assignee: Rodel Holdings Inc.
    Inventors: John V. H. Roberts, David B. James, Lee Melbourne Cook, Charles W. Jenkins
  • Publication number: 20020098782
    Abstract: This invention describes improved polishing pads useful in the manufacture of semiconductor devices or the like. The pads of the present invention may have an advantageous hydrophilic polishing material and are sufficiently thin to generally improve predictability and polishing performance.
    Type: Application
    Filed: February 8, 2002
    Publication date: July 25, 2002
    Inventors: David B. James, Lee Melbourne Cook, Arthur Richard Baker
  • Publication number: 20020098702
    Abstract: An apparatus and method for polishing the surface of a semiconductor wafer is provided in which the polishing pad has on its surface a multiplicity of nanoasperities which are particles having an imputed radius (of curvature) of about 0.5 to about 0.1 microns and sufficient resiliency to permanently deform by less than 10% which contact the wafer surface in combination with a reactive liquid solution which may be recirculated, analyzed, adjusted, and from which soluble reaction products may be removed.
    Type: Application
    Filed: February 1, 2002
    Publication date: July 25, 2002
    Inventors: Lee Melbourne Cook, David B. James, William B. Budinger
  • Publication number: 20020077036
    Abstract: A polishing pad with a polishing layer having a macro-texture and a micro-texture wherein the polishing layer is formed by solidifying a flowable material, the polishing layer further comprising hard domains and soft domains, each domain having an average size less than 100 microns.
    Type: Application
    Filed: May 4, 2001
    Publication date: June 20, 2002
    Inventors: John V. H. Roberts, David B. James, Lee Melbourne Cook, Ronald D. Bakule
  • Patent number: 6387312
    Abstract: A polishing pad is formed by solidifying a flowable polymeric material at different rates of cooling to provide a polishing pad with a transparent region and an adjacent opaque region. Types of polymeric material suitable for making the polishing pad include a single thermoplastic material, a blend of thermoplastic materials, and a reactive thermosetting polymer.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: May 14, 2002
    Assignee: Rodel Holdings Inc.
    Inventors: John V. H. Roberts, Barry Scott Pinheiro, David B. James
  • Patent number: 6375559
    Abstract: A chemical-mechanical polishing system which is particularly well suited for use in the manufacture of semiconductor devices or the like. The invention is directed to a polishing pad composition comprising a high modulus phase component and a low modulus phase component. The multi-phase polishing pads are very efficient and effective in providing high performance polishing along an entire polishing surface interface.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: April 23, 2002
    Assignee: Rodel Holdings Inc.
    Inventors: David B. James, William D. Budinger, John V. H. Roberts, Michael R. Oliver, Nina G. Chechik, Richard M. Levering, Jr., Lee Melbourne Cook
  • Patent number: 6354915
    Abstract: This invention describes improved polishing pads useful in the manufacture of semiconductor devices or the like. The pads of the present invention have an advantageous hydrophilic polishing material and are sufficiently thin to generally improve predictability and polishing performance.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: March 12, 2002
    Assignee: Rodel Holdings Inc.
    Inventors: David B. James, Lee Melbourne Cook, Arthur Richard Baker
  • Publication number: 20020020495
    Abstract: An apparatus and method for polishing the surface of a semiconductor wafer is provided in which the polishing pad has on its surface a multiplicity of nanoasperities which are particles having an imputed radius (of curvature) of about 0.5 to about 0.1 microns and sufficient resiliency to permanently deform by less than 10% which contact the wafer surface in combination with a reactive liquid solution which may be recirculated, analyzed, adjusted, and from which soluble reaction products may be removed.
    Type: Application
    Filed: February 2, 2001
    Publication date: February 21, 2002
    Inventors: David B. James, William D. Budinger, John V.H. Roberts, Michael R. Oliver, Nina G. Chechik, Richard M. Levering
  • Patent number: 6337281
    Abstract: A fixed abrasive, chemical-mechanical polishing system which is particularly well suited for use in the manufacture of semiconductor devices, memory disks or the like.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: January 8, 2002
    Assignee: Rodel Holdings Inc.
    Inventors: David B. James, William D. Budinger, John V. H. Roberts, Michael R. Oliver, Nina G. Chechik, Richard M. Levering, Jr., Heinz F. Reinhardt
  • Patent number: 6325703
    Abstract: A polishing pad having a uniform, continuously interconnected porous surface. The pad is produced by pressure sintering powder compacts of thermoplastic polymer at a temperature above the glass transition temperature but not exceeding the melting point of the polymer. The sintering process is conducted at a pressure in excess of 100 psi and in a mold having the desired final pad dimensions. In a preferred version, a mixture of two polymer powders is used, where one polymer has a lower melting point than the other.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: December 4, 2001
    Assignee: Rodel Holdings, Inc.
    Inventors: Lee Melbourne Cook, David B. James, Charles William Jenkins, Heinz F. Reinhardt, John V. H. Roberts, Raj Raghav Pillai
  • Publication number: 20010041511
    Abstract: A polishing pad includes a flexible substrate and a polymeric polishing layer that has a repeatable pattern of polymeric asperities that are manufactured by printing, according to a gravure printing process or a screen printing process.
    Type: Application
    Filed: January 19, 2001
    Publication date: November 15, 2001
    Inventors: Craig D. Lack, Chau H. Duong, David B. James
  • Publication number: 20010024940
    Abstract: A polishing pad having a uniform, continuously interconnected porous surface. The pad is produced by pressure sintering powder compacts of thermoplastic polymer at a temperature above the glass transition temperature but not exceeding the melting point of the polymer. The sintering process is conducted at a pressure in excess of 100 psi and in a mold having the desired final pad dimensions. In a preferred version, a mixture of two polymer powders is used, where one polymer has a lower melting point than the other.
    Type: Application
    Filed: March 22, 2001
    Publication date: September 27, 2001
    Inventors: Lee Melbourne Cook, David B. James, Charles William Jenkins, Heinz F. Reinhardt, John V. H. Roberts, Raj Raghav Pillai
  • Patent number: 6293852
    Abstract: This invention describes improved polishing pads useful in the manufacture of semiconductor devices or the like. The polishing pads of the present invention are formed by sintering or a combination of sintering and molding (including reaction injection molding). The polishing pads of the present invention are made of an advantageous hydrophilic polishing material and have a surface topography and texture which improves their polishing performance.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: September 25, 2001
    Assignee: Rodel Holdings Inc.
    Inventors: John H. V. Roberts, David B. James, Lee Melbourne Cook
  • Patent number: 6287185
    Abstract: Polishing pads are provided having a polishing surface formed from a hydrophilic material. The polishing surface has a topography produced by a thermoforming process. The topography consists of large and small features that facilitate the flow of polishing fluid and facilitate smoothing and planarizing.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: September 11, 2001
    Assignee: Rodel Holdings Inc.
    Inventors: John V. H. Roberts, David B. James, Lee Melbourne Cook, Charles W. Jenkins
  • Patent number: 6284114
    Abstract: A method is provided for the fabrication of a porous polymeric material by electrophoretic deposition. The porous polymeric material is particularly well suited as a polishing surface for the planarization of semiconductor wafers.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: September 4, 2001
    Assignee: Rodel Holdings Inc.
    Inventors: Nina G. Chechik, Richard M. Levering, Jr., David B. James, Lee Melbourne Cook
  • Patent number: 6245679
    Abstract: An apparatus and method for polishing the surface of a semiconductor wafer is provided in which the polishing pad has on its surface a multiplicity of nanoasperities which are particles having an imputed radius (of curvature) of about 0.5 to about 0.1 microns and sufficient resiliency to permanently deform by less than 10% which contact the wafer surface in combination with a reactive liquid solution.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: June 12, 2001
    Assignee: Rodel Holdings, Inc
    Inventors: Lee Melbourne Cook, David B. James, William D. Budinger, John V. H. Roberts, Michael R. Oliver, Nina G. Chechik, Richard M. Levering, Jr.
  • Patent number: 6231434
    Abstract: A polishing pad having a uniform, continuously interconnected porous surface. The pad is produced by pressure sintering powder compacts of thermoplastic polymer at a temperature above the glass transition temperature but not exceeding the melting point of the polymer. The sintering process is conducted at a pressure in excess of 100 psi and in a mold having the desired final pad dimensions. In a preferred version, a mixture of two polymer powders is used, where one polymer has a lower melting point than the other.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: May 15, 2001
    Assignee: Rodel Holdings Inc.
    Inventors: Lee Melbourne Cook, David B. James, Charles William Jenkins, Heinz F. Reinhardt, John V. H. Roberts, Raj Raghav Pillai
  • Patent number: 6217434
    Abstract: This invention describes improved polishing pads useful in the manufacture of semiconductor devices or the like. The pads of the present invention have an advantageous hydrophilic polishing material and have an innovative surface topography and texture which generally improves predictability and polishing performance.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: April 17, 2001
    Assignee: Rodel Holdings, Inc.
    Inventors: John H. V. Roberts, David B. James, Lee Melbourne Cook
  • Patent number: 6210525
    Abstract: An apparatus and method for polishing the surface of a semiconductor wafer is provided in which the polishing pad has on its surface a multiplicity of nanoasperities which are particles having an imputed radius (of curvature) of about 0.5 to about 0.1 microns and sufficient resiliency to permanently deform by less than 10% which contact the wafer surface in combination with a reactive liquid solution.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: April 3, 2001
    Assignee: Rodel Holdings, Inc.
    Inventors: David B. James, William D. Budinger, John V. H. Roberts, Michael R. Oliver, Nina G. Chechik, Richard M. Levering, Jr., Lee Melbourne Cook