Patents Assigned to ReVera Incorporated
  • Patent number: 8011830
    Abstract: A method and a system for calibrating an X-ray photoelectron spectroscopy (XPS) measurement are described. The method includes using an X-ray beam to generate an XPS signal from a sample and normalizing the XPS signal with a measured or estimated flux of the X-ray beam. The system includes an X-ray source for generating an X-ray beam and a sample holder for positioning a sample in a pathway of the X-ray beam. A detector is included for collecting an XPS signal generated by bombarding the sample with the X-ray beam. Also included are a flux detector for determining a measured or estimated flux of the X-ray beam and a computing system for normalizing the XPS signal with the measured or estimated flux of the X-ray beam.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: September 6, 2011
    Assignee: Revera Incorporated
    Inventors: Bruno W. Schueler, David A. Reed, Bruce H. Newcome, Jeffrey A. Moore
  • Patent number: 7561438
    Abstract: An electronic device. The device comprises a printed circuit board, a multilayered capacitor formed on the printed circuit board, and a conductive strip disposed on a top surface of the printed circuit board. The conductive strip interconnects to the multilayered capacitor. The multilayered capacitor includes a plurality of capacitance plates and a plurality of dielectric layers wherein each dielectric layer is disposed between two of the capacitance plates. The printed circuit board further comprises ground plated sidewalls disposed about the printed circuit board. Each of the ground plated sidewalls extends from a top surface to a bottom surface of the printed circuit board.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: July 14, 2009
    Assignee: Revera Incorporated
    Inventor: Yungman Liu
  • Patent number: 7456399
    Abstract: A method comprising obtaining a first set of spectral data for a first sample film measured by a first system, extracting intensities for one or more elemental species associated with the first sample film to provide a first set of extracted intensities using a function, and determining a first quantitative characteristic associated with the first sample film using the first set of extracted intensities. Next, obtain a second set of spectral data measured for a comparable sample film measured by a second photoelectron spectroscopy system. Next, apply the same function and continually adjust the function to extract intensities for the respective elemental species associated with the comparable sample film to provide a second set of corrected-extracted intensities. A second quantitative characteristic for the comparable sample is determined. The function is continually adjusted until the determined second quantitative characteristic closely or substantially matches the first quantitative characteristic.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: November 25, 2008
    Assignee: ReVera Incorporated
    Inventor: Eric J. Soderstrom
  • Patent number: 7449682
    Abstract: Characterization of a sample, e.g., a depth profile, may be attained using one or more of the following parameters in an electron spectroscopy method or system. The one or more parameters may include using low ion energy ions for removing material from the sample to expose progressively deeper layers of the sample, using an ion beam having a low ion angle to perform such removal of sample material, and/or using an analyzer positioned at a high analyzer angle for receiving photoelectrons escaping from the sample as a result of x-rays irradiating the sample. Further, a correction algorithm may be used to determine the concentration of components (e.g., elements and/or chemical species) versus depth within the sample, e.g., thin film formed on a substrate. Such concentration determination may include calculating the concentration of components (e.g, elements and/or chemical species) at each depth of a depth profile by removing from depth profile data collected at a particular depth (i.e.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: November 11, 2008
    Assignee: Revera Incorporated
    Inventors: Paul E. Larson, John F. Moulder, David G. Watson, David S. Perloff
  • Patent number: 7420163
    Abstract: According to one embodiment of the invention, photoelectron spectroscopy is used to determine the thickness of one or more layers in a single or multi-layer structure on a substrate. The thickness may be determined by measuring the intensities of two photoelectron species or other atom-specific characteristic electron species emitted by the structure when bombarded with photons. A predictive intensity function that is dependent on the thickness of a layer is determined for each photoelectron species. A ratio of two predictive intensity functions is formulated, and the ratio is iterated to determine the thickness of a layer of the structure. According to one embodiment, two photoelectron species may be measured from a single layer to determine a thickness of that layer. According to another embodiment, two photoelectron species from different layers or from a substrate may be measured to determine a thickness of a layer.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: September 2, 2008
    Assignee: ReVera Incorporated
    Inventor: Bruno Schueler
  • Patent number: 7411188
    Abstract: A method to determine a distribution profile of an element in a film. The method comprises exciting an electron energy of an element deposited in a first film, obtaining a first spectrum associating with the electron energy, and removing a background spectrum from the first spectrum. Removing the background value generates a processed spectrum. The method further includes matching the processed spectrum to a simulated spectrum with a known simulated distribution profile for the element in a film comparable to the first film. A distribution profile is obtained for the element in the first film based on the matching of the processed spectrum to a simulated spectrum selected from the set of simulated spectra.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: August 12, 2008
    Assignee: ReVera Incorporated
    Inventors: Paola deCecco, Bruno Schueler, David Reed, Michael Kwan, Dave Ballance
  • Patent number: 7399963
    Abstract: According to one aspect of the present invention, a substrate processing system is provided. The system may include a chamber wall enclosing a chamber, a substrate support positioned within the chamber to support a substrate, an electromagnetic radiation source to emit electromagnetic radiation onto the substrate on the substrate support, the electromagnetic radiation causing photoelectrons to be emitted from a material on the substrate, an analyzer to capture the photoelectrons emitted from the substrate, and a magnetic field generator to generate a magnetic field within the chamber and guide the photoelectrons from the substrate to the analyzer.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: July 15, 2008
    Assignee: ReVera Incorporated
    Inventors: Bruno W. Schueler, David A. Reed
  • Patent number: 7359487
    Abstract: According to one aspect of the invention a robust anode structure and methods of making and using said structure to produce ionizing radiation are disclosed. An ionizing radiation producing layer is bonded to the target side of a highly conductive diamond substrate, by a metal carbide layer. The metal carbide layers improves the strength and durability of the bond, thus improving heat removal from the anode surface and reducing the risk of delaminating the ionizing radiation producing layer, thus reducing degradation and extending the anode's life. A smoothing dopant is alloyed into the radiation producing layer to facilitate keeping the layer surface smooth, thus improving the quality of the x-ray beam emitted from the anode. In an embodiment, the heat sink comprises a metal carbide skeleton cemented diamond material. In another embodiment, the heat sink is bonded to the diamond substrate structure in a high temperature reactive brazing process.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: April 15, 2008
    Assignee: ReVera Incorporated
    Inventor: Bruce Newcome
  • Patent number: 7231324
    Abstract: According to one embodiment of the invention, a method for analyzing data from an instrument is disclosed. The raw data generated by the instrument, along with configuration data generated by a user, is packaged into a calling model. The raw data may include, for example, counts having a certain kinetic energy when analyzing photoelectron spectroscopy data. The configuration data may include several parameters selected by the user based on the composition and configuration of the structure being measured. The calling model may serve as an interface between the instrument and an engine for generating an algorithm for returning desired results to the user. The engine then generates the algorithm as well as the results specified by the user, and the calling model returns the results to the user. This allows a specific algorithm and results for a specific measured sample or structure to be generated using known algorithms and functions.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: June 12, 2007
    Assignee: ReVera Incorporated
    Inventors: James Orrock, Thomas Larson, Bruno Schueler, Lawrence Bot, James Quigley, Emir Gurer
  • Patent number: 6891158
    Abstract: The present invention provides for characterization of a film (e.g., thickness determination for a silicon oxynitride film) using collected spectral data. For example, an acquired spectrum may be cumulatively integrated and the geometric properties of the integrated spectrum may be used to determine component concentration information. Thickness measurements for the film may be provided based on the component concentration information.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: May 10, 2005
    Assignee: ReVera Incorporated
    Inventors: Paul E. Larson, David G. Watson
  • Patent number: 6800852
    Abstract: The present invention provides for characterization of a film (e.g., thickness determination for a silicon oxynitride film) using a comparison process (e.g., a fitting process) to compare measured peak shapes for elemental and/or chemical species (e.g., Si peak shapes previously measured for a particular process to be monitored) to collected spectral data (e.g., using a non-linear least squares fitting algorithm).
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: October 5, 2004
    Assignee: ReVera Incorporated
    Inventors: Paul E. Larson, David G. Watson, John F. Moulder