Patents by Inventor Nitin Shah

Nitin Shah 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: 20050181199
    Abstract: A coating composition that enables refractory materials such as ceramics to be joined to one another or to metallic components using brazing filler metals. The composition is applied on selected areas of the refractory material to define a target area for brazing. In one embodiment, the coating composition includes (i) a Group IVB transition metal component selected from the group consisting of a Group IVB transition metal, a hydride thereof, and mixtures of the Group IVB metals and/or hydrides thereof, (ii) a binder material, and (iii) a fluid carrier. In disclosed embodiments, the Group IVB transition metal component is titanium, and the binder material is a combination of a hydrocarbon resin and a styrene block copolymer.
    Type: Application
    Filed: December 13, 2004
    Publication date: August 18, 2005
    Inventors: Nitin Shah, Lawrence Wolfgram
  • Patent number: 6572730
    Abstract: A semiconductor wafer processing system for polishing a substrate that generally includes a base having a first side and a second side, and at least one drive system that is disposed on the first side of the base. One or more polishing heads are coupled to the drive system for retaining a workpiece during polishing. A first enclosure is disposed on the first side of the base and defines a first volume that includes the drive system. A second enclosure is disposed on the second side of the base and defines a second volume. A first exhaust is coupled to the second volume. When the system is coupled to a facilities exhaust or other air handler, the first exhaust ventilates the second volume. In another aspect, a method for processing a substrate is also disclosed. Generally, the method includes the steps of monitoring the flow metrics of a first exhaust from a first enclosure and a second exhaust from a second enclosure.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: June 3, 2003
    Assignee: Applied Materials, Inc.
    Inventor: Nitin Shah
  • Patent number: 6251001
    Abstract: Systems and methods for polishing a substrate with reduced contamination are described. Moist air is directed to one or more surfaces in proximity to the polishing surface and exposed to airborne slurry particles generated during polishing. By maintaining the atmosphere in the vicinity of the exposed surfaces at an elevated relative humidity level, airborne slurry particles adhering to the exposed surfaces remain in suspension and, therefore, may be easily cleaned, e.g., during a high pressure rinse cycle. This feature reduces the likelihood that slurry particles will accumulate on exposed surfaces of the polishing apparatus and flake off while a substrate is being polished, reducing the likelihood of substrate defects caused by such slurry contamination.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: June 26, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Jay D. Pinson, Brian J. Brown, Thomas H. Osterheld, Benjamin A. Bonner, Doyle E. Bennett, Nitin Shah, Paul Flores
  • Patent number: 6053801
    Abstract: Systems and methods for polishing a substrate with reduced contamination are described. A rinse arm has one or more nozzles configured to direct rinse fluid toward a polishing surface for polishing a substrate. The rinse arm further includes a fluid dispenser configured to direct rinse fluid to one or more surfaces of the rinse arm in proximity to the polishing surface and exposed to airborne slurry particles generated from slurry on the polishing surface. By maintaining the atmosphere in the vicinity of the exposed rinse arm surfaces at an elevated relative humidity level, airborne slurry particles adhering to the exposed rinse arm surfaces remain in suspension and, therefore, may be easily cleaned, e.g., during a high pressure rinse cycle. This feature reduces the likelihood that slurry particles will accumulate on exposed surfaces of the polishing apparatus and flake off while a substrate is being polished, reducing the likelihood of substrate defects caused by such slurry contamination.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: April 25, 2000
    Assignee: Applied Materials, Inc.
    Inventors: Jay D. Pinson, Nitin Shah, David W. Groechel, Joe Waidl
  • Patent number: 4445106
    Abstract: A spiral wound fuse body comprises a core of insulating material formed by a limp, dead yarn made of twisted together initially sizing-coated strands of fine ceramic filaments, where the sizing was subsequently removed so that there is no sizing to leave a conductive residue under fuse blowing conditions. Such a fuse body is mass produced by spiral winding fuse wire upon a continuous length of said yarn unwinding from a spool upon which the yarn was wound when the sizing was removed. The resulting self-supporting body can be wound into rolls and subsequently unwound so that individual fuse bodies can be severed from the end of the unwinding roll of fuse body-forming material.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: April 24, 1984
    Assignee: Littelfuse, Inc.
    Inventor: Nitin Shah
  • Patent number: 4409729
    Abstract: A method of making a spiral wound fuse body comprising a core of insulating material formed by a limp, dead yarn made of twisted together initially sizing-coated strands of fine ceramic filaments having no sizing to leave a conductive residue under fuse blowing conditions is mass produced by spiral winding fuse wire upon a continuous length of the yarn unwinding from a spool upon which the yarn was wound when the sizing was removed. The resulting self-supporting body can be wound into rolls and subsequently unwound so that individual fuse bodies can be severed from the end of the unwinding roll of fuse body-forming material.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: October 18, 1983
    Assignee: Littelfuse, Inc.
    Inventor: Nitin Shah