Patents by Inventor Paul B. Comita

Paul B. Comita 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: 7812956
    Abstract: Methods and apparatus, including computer program products, implementing and using techniques for collecting optical data pertaining to one or more characteristics of a sample. The apparatus has a light source, one or more illumination optical elements, a scanner, one or more collection optical elements, and a device forming an aperture that limits detection of light from the sample. The illumination optical elements direct a light beam from the light source onto the sample. The scanner scans the light beam across the sample. The collection optical elements collect light from the sample and transmit the collected light to a detector. None of the collection optical elements are included among the illumination optical elements. The device forming an aperture limits detection of light from the sample to light associated with a limited vertical depth within the sample, and is one of the collection optical elements.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: October 12, 2010
    Assignee: Blueshift Biotechnologies, Inc.
    Inventors: Evan F. Cromwell, Johann F. Adam, Andrei Brunfeld, Paul B. Comita, Christopher J. Seipert
  • Patent number: 7758697
    Abstract: Methods for depositing a silicon-containing film are described. The methods may include delivering a silicon compound to a surface or a substrate, and reacting the silicon compound to grow the silicon-containing film. The silicon compound may be one or more compounds having a formula selected from the group Si4X8, Si4X10, Si5X10, and Si5X12, where X is independently a hydrogen or halogen.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: July 20, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Paul B. Comita, Lance A. Scudder, David K. Carlson
  • Patent number: 7674588
    Abstract: Methods and apparatus are described for detecting specific binding between first and second chemical entities. The first chemical entity in association with a first fluorophore is immobilized. The second chemical entity is allowed to bind with the immobilized first chemical entity. The second chemical entity is or becomes coupled to a second fluorophore, which forms a FRET pair with the first fluorophore. The bound chemical entities are exposed to radiation at an excitation frequency for either the first or the second fluorophore, and polarization anisotropy of a FRET fluorescent signal from the bound chemical entities is measured to detect specific binding between the first and second chemical entities.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: March 9, 2010
    Assignee: Blueshift Biotechnologies, Inc.
    Inventors: Steven C. Miller, Paul B. Comita, Christopher B. Shumate, Evan F. Cromwell
  • Patent number: 7645339
    Abstract: Embodiments of the invention relate to methods for depositing silicon-containing materials on a substrate. In one example, a method for selectively and epitaxially depositing a silicon-containing material is provided which includes positioning and heating a substrate containing a crystalline surface and a non-crystalline surface within a process chamber, exposing the substrate to a process gas containing neopentasilane, and depositing an epitaxial layer on the crystalline surface. In another example, a method for blanket depositing a silicon-containing material is provide which includes positioning and heating a substrate containing a crystalline surface and feature surfaces within a process chamber and exposing the substrate to a process gas containing neopentasilane and a carbon source to deposit a silicon carbide blanket layer across the crystalline surface and the feature surfaces.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: January 12, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Kaushal K. Singh, Paul B. Comita, Lance A. Scudder, David K. Carlson
  • Patent number: 7643146
    Abstract: Methods and apparatus for performing scatterometry measurements of biological samples as described herein. A substrate having formed therein one or more sample wells is provided. Each sample well is configured to hold a sample solution containing objects that are to be characterized based on their light scattering properties. One or more sample solutions are dispensed into the sample wells. A specular reflection reducing element is applied to at least some of the sample solutions in the sample wells to decrease reflections of light into one or more detectors. A light beam is directed from a light source onto the objects in the sample wells. Light scattered by the objects in the sample wells is collected and transmitted to one or more detectors. The signal from the detectors is analyzed to detect the one or more characteristics of the one or more samples.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: January 5, 2010
    Assignee: Blueshift Biotechnologies, Inc.
    Inventors: Evan F. Cromwell, Steven C. Miller, Robert T. Trujillo, Paul B. Comita
  • Patent number: 7576862
    Abstract: Methods and apparatus, including computer program products, implementing and using techniques for collecting optical data pertaining to one or more characteristics of a sample. A light beam of a first frequency is scanned onto a sample surface using one or more illumination optical elements. Light of a second frequency is collected from a scan line on the sample surface using one or more collection optical elements. None of the one or more collection optical elements are included among the one or more illumination optical elements. The collected light is transmitted to a detector.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: August 18, 2009
    Assignee: Blueshift Biotechnologies, Inc.
    Inventors: Evan F. Cromwell, Johann F. Adam, Andrei Brunfeld, Paul B. Comita, Christopher J. Seipert
  • Patent number: 7540920
    Abstract: Embodiments of the invention generally provide a composition of silicon compounds and methods for using the silicon compounds to deposit a silicon-containing film. The processes employ introducing the silicon compound to a substrate surface and depositing a portion of the silicon compound, the silicon motif, as the silicon-containing film. The ligands are another portion of the silicon compound and are liberated as an in-situ etchant. The in-situ etchants supports the growth of selective silicon epitaxy. Silicon compounds include SiRX6, Si2RX6, Si2RX8, wherein X is independently hydrogen or halogen and R is carbon, silicon or germanium. Silicon compound also include compounds comprising three silicon atoms, fourth atom of carbon, silicon or germanium and atoms of hydrogen or halogen with at least one halogen, as well as, comprising four silicon atoms, fifth atom of carbon, silicon or germanium and atoms of hydrogen or halogen with at least one halogen.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: June 2, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Kaushal K. Singh, Paul B. Comita, Lance A. Scudder, David K. Carlson
  • Publication number: 20080206888
    Abstract: Methods and apparatus are described for detecting specific binding between first and second chemical entities. The first chemical entity in association with a first fluorophore is immobilized. The second chemical entity is allowed to bind with the immobilized first chemical entity. The second chemical entity is or becomes coupled to a second fluorophore, which forms a FRET pair with the first fluorophore. The bound chemical entities are exposed to radiation at an excitation frequency for either the first or the second fluorophore, and polarization anisotropy of a FRET fluorescent signal from the bound chemical entities is measured to detect specific binding between the first and second chemical entities.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 28, 2008
    Inventors: Steven C. Miller, Paul B. Comita, Christopher B. Shumate, Evan F. Cromwell
  • Publication number: 20080174842
    Abstract: Methods and apparatus, including computer program products, implementing and using techniques for collecting optical data pertaining to one or more characteristics of a sample. The apparatus has a light source, one or more illumination optical elements, a scanner, one or more collection optical elements, and a device forming an aperture that limits detection of light from the sample. The illumination optical elements direct a light beam from the light source onto the sample. The scanner scans the light beam across the sample. The collection optical elements collect light from the sample and transmit the collected light to a detector. None of the collection optical elements are included among the illumination optical elements. The device forming an aperture limits detection of light from the sample to light associated with a limited vertical depth within the sample, and is one of the collection optical elements.
    Type: Application
    Filed: February 22, 2008
    Publication date: July 24, 2008
    Inventors: Evan F. Cromwell, Johann F. Adam, Andrei Brunfeld, Paul B. Comita, Christopher J. Seipert
  • Patent number: 7141378
    Abstract: Methods, apparatus, and system, implementing and using techniques for detecting a presence of one or more target analytes in particular regions of interest of one or more samples. One or more samples including objects and one or more target analytes are provided. Some of the target analytes are labeled with a fluorophore and are bound to some of the objects in the samples. The samples are illuminated with fluorescence inducing light and fluorescent light is collected from one or more regions of the one or more samples. At least one anisotropy measurement of the samples is performed to identify regions of interest where one or more target analytes are bound to the objects. The collected fluorescent light from the regions of interest is analyzed to determine a presence of target analytes that are bound to the objects in the one or more samples.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: November 28, 2006
    Assignee: Blueshift Biotechnologies, Inc.
    Inventors: Steven C. Miller, Paul B. Comita, Evan F. Cromwell, Christopher B. Shumate
  • Patent number: 6876442
    Abstract: A method is provided wherein a temperature reading error of a pyrometer is avoided. An upper pyrometer is used to detect infrared radiation from a test layer formed on a test substrate under standard processing conditions. The infrared radiation from the test layer has a period having a length which is indicative of growth rate of the layer. The period is generally inversely proportional to the growth rate. The growth rate is directly related to the temperature.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: April 5, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Jean R. Vatus, David K. Carlson, Arkadii V. Samoilov, Lance A. Scudder, Paul B. Comita, Annie A. Karpati
  • Patent number: 6833322
    Abstract: Methods and apparatuses for forming an oxide film. The method includes depositing an oxide film on a substrate using a process gas mixture that comprises a silicon source gas, an oxygen gas, and a hydrogen gas, and a process temperature between 800° C. and 1300° C. During the deposition of the oxide film, the process gas mixture comprises less than 6% oxygen, silicon gas, and predominantly hydrogen.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: December 21, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Roger N. Anderson, Paul B. Comita, Ann Waldhauer, Norma B. Riley
  • Publication number: 20040224089
    Abstract: Embodiments of the invention generally provide a composition of silicon compounds and methods for using the silicon compounds to deposit a silicon-containing film. The processes employ introducing the silicon compound to a substrate surface and depositing a portion of the silicon compound, the silicon motif, as the silicon-containing film. The ligands are another portion of the silicon compound and are liberated as an in-situ etchant. The in-situ etchants supports the growth of selective silicon epitaxy. Silicon compounds include SiRX6, Si2RX6, Si2RX8, wherein X is independently hydrogen or halogen and R is carbon, silicon or germanium. Silicon compound also include compounds comprising three silicon atoms, fourth atom of carbon, silicon or germanium and atoms of hydrogen or halogen with at least one halogen, as well as, comprising four silicon atoms, fifth atom of carbon, silicon or germanium and atoms of hydrogen or halogen with at least one halogen.
    Type: Application
    Filed: October 17, 2003
    Publication date: November 11, 2004
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Kaushal K. Singh, Paul B. Comita, Lance A. Scudder, David K. Carlson
  • Publication number: 20040175893
    Abstract: A method of making a substantially facet-free epitaxial film is disclosed. A substrate having predetermined regions is first provided. An epitaxial film forming process gas and a carrier gas are introduced into a reactor chamber. The epitaxial film forming process gas and the carrier have a flow ratio between 1:1 and 1:200. The epitaxial film is deposited into the predetermined regions of the substrate wherein the substrate has a temperature between about 350° C. and about 900° C. when the epitaxial film is being deposited.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 9, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Jean R. Vatus, Lance A. Scudder, Paul B. Comita
  • Patent number: 6774040
    Abstract: A method of treating a silicon surface of a substrate that includes heating the substrate in a process chamber to a temperature, exposing a first area adjacent to the silicon surface to a first gas mixture comprising an etchant, a silicon source gas, and a carrier, exposing a second area adjacent to the silicon surface to a second gas mixture, wherein the second gas mixture is different from the first gas mixture.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: August 10, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Paul B. Comita, Karin Anna Lena Thilderkvist, Lance Scudder
  • Publication number: 20040077184
    Abstract: Methods and apparatuses for forming an oxide film. The method includes depositing an oxide film on a substrate using a process gas mixture that comprises a silicon source gas, an oxygen gas, and a hydrogen gas, and a process temperature between 800° C. and 1300° C. During the deposition of the oxide film, the process gas mixture comprises less than 6% oxygen, silicon gas, and predominantly hydrogen.
    Type: Application
    Filed: October 17, 2002
    Publication date: April 22, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Roger N. Anderson, Paul B. Comita, Ann Waldhauer, Norma B. Riley
  • Publication number: 20040072446
    Abstract: A method of fabricating an ultra shallow junction of a field effect transistor is provided. The method includes the steps of etching a substrate near a gate structure to define a source region and a drain region of the transistor, forming a spacer/protective film having poor step coverage to protect frontal surfaces of the source and drain regions, laterally etching sidewalls of the regions beneath a gate dielectric to define a channel region, and removing the protective film.
    Type: Application
    Filed: July 1, 2003
    Publication date: April 15, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Wei Liu, David S. L. Mui, Lance A. Scudder, Paul B. Comita, Arkadii V. Samoilov, Babak Adibi
  • Publication number: 20040060899
    Abstract: A method of treating a silicon film on a substrate. A silicon film is provided. The silicon film is thinned using a gas cluster ion beam (GCIB) process. The silicon film surface then is smoothed out using an etching process or an annealing process. Optionally, an encapsulation film is formed on the silicon film after the GCIB process and the etching process or the annealing process.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 1, 2004
    Applicant: Applied Materials, Inc.
    Inventors: Ann Waldhauer, Paul B. Comita
  • Publication number: 20040060900
    Abstract: A method of treating a silicon film on a substrate. A silicon film is provided. The silicon film is thinned using a gas cluster ion beam (GCIB) process. The silicon film surface then is smoothed out using an etching process or an annealing process. Optionally, an encapsulation film is formed on the silicon film after the GCIB process and the etching process or the annealing process.
    Type: Application
    Filed: March 13, 2003
    Publication date: April 1, 2004
    Inventors: Ann Waldhauer, Paul B. Comita
  • Publication number: 20040053515
    Abstract: A method of treating a silicon surface of a substrate that includes heating the substrate in a process chamber to a temperature, exposing a first area adjacent to the silicon surface to a first gas mixture comprising an etchant, a silicon source gas, and a carrier, exposing a second area adjacent to the silicon surface to a second gas mixture, wherein the second gas mixture is different from the first gas mixture.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 18, 2004
    Inventors: Paul B. Comita, Karin Anna Lena Thilderkvist, Lance Scudder