Patents by Inventor Gregory A. Roche

Gregory A. Roche 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: 11610765
    Abstract: An atmospheric pressure plasma processing apparatus and method employing argon as a plasma gas in the absence of helium, including nanosecond pulse-powered electrodes having planar surfaces, and grounded electrodes having planar surfaces parallel to the surfaces of the powered electrodes and spaced-apart a chosen distance therefrom, forming plasma regions, are described. The absence of helium from the plasma discharge has been found not to affect the quality of the resulting plasma-polymerized coatings of the processed substrates.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: March 21, 2023
    Assignee: APJeT, Inc.
    Inventors: Gregory A. Roche, David W. Tyner, Carrie E. Cornelius, Joseph H. Cross
  • Publication number: 20220125971
    Abstract: Apparatus for sterilizing surfaces and apparatus for sterilizing air and enclosed objects using gliding arc discharge technology are described, whereby disinfecting products formed in the discharge are prevented from escaping from the apparatus into the ambient air.
    Type: Application
    Filed: October 22, 2021
    Publication date: April 28, 2022
    Applicant: APJeT, Inc.
    Inventors: David W. Tyner, Gregory A. Roche, Preston A. Roche
  • Patent number: 11149370
    Abstract: A plasma processing apparatus including powered electrodes having elongated planar surfaces; grounded electrodes having elongated planar surfaces parallel to and coextensive with the elongated surfaces of the powered electrodes, and spaced-apart a chosen distance therefrom, forming plasma regions, is described. RF power is provided to the at least one powered electrode, both powered and grounded electrodes may be cooled, and a plasma gas is flowed through the plasma regions at atmospheric pressure; whereby a plasma is formed in the plasma regions. The material to be processed may be moved into close proximity to the exit of the plasma gas from the plasma regions perpendicular to the gas flow, and perpendicular to the elongated electrode dimensions, whereby excited species generated in the plasma exit the plasma regions and impinge unimpeded onto the material.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 19, 2021
    Assignee: APJeT, Inc.
    Inventors: Carrie E. Cornelius, Gregory A. Roche, David W. Tyner
  • Publication number: 20160348292
    Abstract: Methods for atmospheric pressure plasma discharge processing using powered electrodes having elongated planar surfaces; grounded electrodes having elongated planar surfaces parallel to and coextensive with the elongated surfaces of the powered electrodes, and spaced-apart a chosen distance therefrom, forming plasma regions, are described. RF power is provided to the at least one powered electrode, both powered and grounded electrodes may be cooled, and a plasma gas is flowed through the plasma regions at atmospheric pressure; whereby a plasma is formed in the plasma regions. The material to be processed may be moved into close proximity to the exit of the plasma gas from the plasma regions perpendicular to the gas flow, and perpendicular to the elongated electrode dimensions, whereby excited species generated in the plasma exit the plasma regions and impinge unimpeded onto the material.
    Type: Application
    Filed: August 8, 2016
    Publication date: December 1, 2016
    Applicant: APJeT, Inc.
    Inventors: Carrie E. Cornelius, Gregory A. Roche, David W. Tyner
  • Publication number: 20140076861
    Abstract: A plasma processing apparatus including powered electrodes having elongated planar surfaces; grounded electrodes having elongated planar surfaces parallel to and coextensive with the elongated surfaces of the powered electrodes, and spaced-apart a chosen distance therefrom, forming plasma regions, is described. RF power is provided to the at least one powered electrode, both powered and grounded electrodes may be cooled, and a plasma gas is flowed through the plasma regions at atmospheric pressure; whereby a plasma is formed in the plasma regions. The material to be processed may be moved into close proximity to the exit of the plasma gas from the plasma regions perpendicular to the gas flow, and perpendicular to the elongated electrode dimensions, whereby excited species generated in the plasma exit the plasma regions and impinge unimpeded onto the material.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 20, 2014
    Inventors: Carrie E. Cornelius, Gregory A. Roche, David W. Tyner
  • Patent number: 8545669
    Abstract: A plasma processing system is provided with diagnostic apparatus for making in-situ measurements of plasma properties. The diagnostic apparatus generally comprises a non-invasive sensor array disposed within a plasma processing chamber, an electrical circuit for stimulating the sensors, and means for recording and communicating sensor measurements for monitoring or control of the plasma process. In one form, the sensors are dynamically pulsed dual floating Langmuir probes that measure incident charged particle currents and electron temperatures in proximity to the plasma boundary or boundaries within the processing system. The plasma measurements may be used to monitor the condition of the processing plasma or furnished to a process system controller for use in controlling the plasma process.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: October 1, 2013
    Assignee: KLA-Tencor Corporation
    Inventors: Leonard J. Mahoney, Carl W. Almgren, Gregory A. Roche, William W. Saylor, William D. Sproul, Hendrik V. Walde
  • Patent number: 7192505
    Abstract: There is provided by this invention a wafer probe for measuring plasma and surface characteristics in plasma processing environment that utilizes integrated sensors on a wafer substrate. A microprocessor mounted on the substrate receives input signals from the integrated sensors to process, store, and transmit the data. A wireless communication transceiver receives the data from the microprocessor and transmits information outside of the plasma processing system to a computer that collects the data during plasma processing. The integrated sensors may be dual floating Langmuir probes, temperature measuring devices, resonant beam gas sensors, or hall magnetic sensors. There is also provided a self-contained power source that utilizes the plasma for power that is comprised of a topographically dependent charging device or a charging structure that utilizes stacked capacitors.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: March 20, 2007
    Assignee: Advanced Plasma, Inc.
    Inventors: Gregory A. Roche, Leonard J. Mahoney, Daniel C. Carter, Steven J. Roberts
  • Publication number: 20060171848
    Abstract: A plasma measurement device comprises data sensors for sensing properties of the plasma environment together with diagnostic sensors for measuring properties related to the functional integrity of the measurement device. Events reported by the diagnostic sensors of the invention may be interpreted as failures of the measurement device, as warnings requiring operator attention or intervention, or alternatively may be employed as data in a predictive algorithm to estimate the remaining useful lifetime of the device. By providing an ability to detect events indicative of faults or failures in a plasma measurement device during use of the device, the invention provides enhanced certainty and confidence in the integrity of data collected by the plasma measurement device.
    Type: Application
    Filed: January 31, 2005
    Publication date: August 3, 2006
    Inventors: Gregory Roche, Daniel Carter, David Madsen, Leonard Mahoney
  • Publication number: 20050284570
    Abstract: A diagnostic plasma measurement device is provided having sensors and features disposed using pattern transfer fabrication techniques. A measurement device comprises a primary substrate with sensors for measuring plasma or surface properties disposed by a stepped pattern transfer technique, such as step-and-repeat photolithography, about the surface of the probe. Sensor fields include sensors that measure physical and electrical properties of a plasma, as well as sensors that measure properties of the wafer surface. Fields or components for processing electronics, electrical interconnections, memory, photovoltaic power, and wireless communication are also provided. By utilizing pattern transfer fabrication techniques, the invention generally provides for reduced risks of contamination of a plasma processing environment and increased manufacturability and reliability of the completed sensor device.
    Type: Application
    Filed: June 24, 2004
    Publication date: December 29, 2005
    Inventors: Daniel Doran, Leonard Mahoney, Steven Roberts, Gregory Roche
  • Publication number: 20050151544
    Abstract: A plasma processing system is provided with diagnostic apparatus for making in-situ measurements of plasma properties. The diagnostic apparatus generally comprises a non-invasive sensor array disposed within a plasma processing chamber, an electrical circuit for stimulating the sensors, and means for recording and communicating sensor measurements for monitoring or control of the plasma process. In one form, the sensors are dynamically pulsed dual floating Langmuir probes that measure incident charged particle currents and electron temperatures in proximity to the plasma boundary or boundaries within the processing system. The plasma measurements may be used to monitor the condition of the processing plasma or furnished to a process system controller for use in controlling the plasma process.
    Type: Application
    Filed: February 25, 2005
    Publication date: July 14, 2005
    Inventors: Leonard Mahoney, Carl Almgren, Gregory Roche, William Saylor, William Sproul, Hendrik Walde
  • Patent number: 6902646
    Abstract: A plasma processing system is provided with diagnostic apparatus for making in-situ measurements of plasma properties. The diagnostic apparatus generally comprises a non-invasive sensor array disposed within a plasma processing chamber, an electrical circuit for stimulating the sensors, and means for recording and communicating sensor measurements for monitoring or control of the plasma process. In one form, the sensors are dynamically pulsed dual floating Langmuir probes that measure incident charged particle currents and electron temperatures in proximity to the plasma boundary or boundaries within the processing system. The plasma measurements may be used to monitor the condition of the processing plasma or furnished to a process system controller for use in controlling the plasma process.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: June 7, 2005
    Assignee: Advanced Energy Industries, Inc.
    Inventors: Leonard J. Mahoney, Carl W. Almgren, Gregory A. Roche, William W. Saylor, William D. Sproul, Hendrik V. Walde
  • Publication number: 20050039852
    Abstract: There is provided by this invention a wafer probe for measuring plasma and surface characteristics in plasma processing environment that utilizes integrated sensors on a wafer substrate. A microprocessor mounted on the substrate receives input signals from the integrated sensors to process, store, and transmit the data. A wireless communication transceiver receives the data from the microprocessor and transmits information outside of the plasma processing system to a computer that collects the data during plasma processing. The integrated sensors may be dual floating Langmuir probes, temperature measuring devices, resonant beam gas sensors, or hall magnetic sensors. There is also provided a self-contained power source that utilizes the plasma for power that is comprised of a topographically dependent charging device or a charging structure that utilizes stacked capacitors.
    Type: Application
    Filed: September 27, 2004
    Publication date: February 24, 2005
    Inventors: Gregory Roche, Leonard Mahoney, Daniel Carter, Steven Roberts
  • Publication number: 20050034812
    Abstract: There is provided by this invention a wafer probe for measuring plasma and surface characteristics in plasma processing environment that utilizes integrated sensors on a wafer substrate. A microprocessor mounted on the substrate receives input signals from the integrated sensors to process, store, and transmit the data. A wireless communication transceiver receives the data from the microprocessor and transmits information outside of the plasma processing system to a computer that collects the data during plasma processing. The integrated sensors may be dual floating Langmuir probes, temperature measuring devices, resonant beam gas sensors, or hall magnetic sensors. There is also provided a self-contained power source that utilizes the plasma for power that is comprised of a topographically dependent charging device or a charging structure that utilizes stacked capacitors.
    Type: Application
    Filed: September 27, 2004
    Publication date: February 17, 2005
    Inventors: Gregory Roche, Leonard Mahoney, Daniel Carter, Steven Roberts
  • Publication number: 20050034811
    Abstract: A plasma processing system is provided with diagnostic apparatus for making in-situ measurements of plasma properties. The diagnostic apparatus generally comprises a non-invasive sensor array disposed within a plasma processing chamber, an electrical circuit for stimulating the sensors, and means for recording and communicating sensor measurements for monitoring or control of the plasma process. In one form, the sensors are dynamically pulsed dual floating Langmuir probes that measure incident charged particle currents and electron temperatures in proximity to the plasma boundary or boundaries within the processing system. The plasma measurements may be used to monitor the condition of the processing plasma or furnished to a process system controller for use in controlling the plasma process.
    Type: Application
    Filed: August 14, 2003
    Publication date: February 17, 2005
    Inventors: Leonard Mahoney, Carl Almgren, Gregory Roche, William Saylor, William Sproul, Hendrik Walde
  • Publication number: 20050011611
    Abstract: There is provided by this invention a wafer probe for measuring plasma and surface characteristics in plasma processing environment that utilizes integrated sensors on a wafer substrate. A microprocessor mounted on the substrate receives input signals from the integrated sensors to process, store, and transmit the data. A wireless communication transceiver receives the data from the microprocessor and transmits information outside of the plasma processing system to a computer that collects the data during plasma processing. The integrated sensors may be dual floating Langmuir probes, temperature measuring devices, resonant beam gas sensors, optical emission sensors, or other sensors of plasma or surface properties. There is also provided a self-contained power source that utilizes the plasma for power that is comprised of a topographically dependent charging device or a charging structure that utilizes stacked capacitors.
    Type: Application
    Filed: August 17, 2004
    Publication date: January 20, 2005
    Inventors: Leonard Mahoney, Daniel Carter, Steven Roberts, Gregory Roche
  • Patent number: 6830650
    Abstract: There is provided by this invention a wafer probe for measuring plasma and surface characteristics in plasma processing environment that utilizes integrated sensors on a wafer substrate. A microprocessor mounted on the substrate receives input signals from the integrated sensors to process, store, and transmit the data. A wireless communication transceiver receives the data from the microprocessor and transmits information outside of the plasma processing system to a computer that collects the data during plasma processing. The integrated sensors may be dual floating Langmuir probes, temperature measuring devices, resonant beam gas sensors, or hall magnetic sensors. There is also provided a self-contained power source that utilizes the plasma for power that is comprised of a topographically dependent charging device or a charging structure that utilizes stacked capacitors.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: December 14, 2004
    Assignee: Advanced Energy Industries, Inc.
    Inventors: Gregory A. Roche, Leonard J. Mahoney, Daniel C. Carter, Steven J. Roberts
  • Publication number: 20040007326
    Abstract: There is provided by this invention a wafer probe for measuring plasma and surface characteristics in plasma processing environment that utilizes integrated sensors on a wafer substrate. A microprocessor mounted on the substrate receives input signals from the integrated sensors to process, store, and transmit the data. A wireless communication transceiver receives the data from the microprocessor and transmits information outside of the plasma processing system to a computer that collects the data during plasma processing. The integrated sensors may be dual floating Langmuir probes, temperature measuring devices, resonant beam gas sensors, or hall magnetic sensors. There is also provided a self-contained power source that utilizes the plasma for power that is comprised of a topographically dependent charging device or a charging structure that utilizes stacked capacitors.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 15, 2004
    Inventors: Gregory A. Roche, Leonard J. Mahoney, Daniel C. Carter, Steven J. Roberts
  • Patent number: 6432260
    Abstract: There is provided by this invention a novel inductively coupled plasma source apparatus that utilizes a transformer to induce closed path secondary plasma currents in a hollow metal housing that is directly cooled by a fluid. This plasma source apparatus is particularly useful for generating a high charged particle density source of ions, electrons, and chemically active species to serve various plasma related processes that may require high power densities. A hollow metal vacuum chamber is coupled to and electrically insulated from a metal vacuum process chamber by means of dielectric gaps that are well shielded from direct exposure to the plasma body. Electrons, photons and excited gaseous species are generated within the metal hollow chamber and process chamber to serve a wide variety of material, surface and gas processing applications. There is also provided by this invention a means of ganging together several hollow metal vacuum chamber assemblies about a single vacuum process chamber.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: August 13, 2002
    Assignee: Advanced Energy Industries, Inc.
    Inventors: Leonard J. Mahoney, Gregory A. Roche, Daniel C. Carter
  • Patent number: 6200651
    Abstract: A dielectric layer is deposited on a workpiece by a chemical vapor deposition method in an electron cyclotron resonance vacuum plasma processor having a plasma chamber responsive to a repetitively pulsed microwave field and gases from a plasma source. A reaction chamber responds to at least one reacting gas containing at least one element that chemically reacts in the presence of the plasma with at least one element in at least one of the gases from the plasma source to form the deposited layer on the workpiece. The turn off periods are long enough to cause electrons in the plasma on the deposited dielectric layer to be cooled sufficiently (from about 3.5 eV to a lower value having a minimum value of about 0.1 eV) to reduce the tendencies for opposite polarity charges to be established across the deposited dielectric layer and for damaging discharge current to flow across the deposited dielectric layer.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: March 13, 2001
    Assignee: Lam Research Corporation
    Inventors: Gregory A. Roche, William R. Harshbarger
  • Patent number: 5913140
    Abstract: A graded gap fill process in which, in a high density plasma processing chamber, an insulating layer is deposited on a substrate without causing plasma charge-related damage to the substrate. The insulating layer is disposed above a first layer having trenches formed therein and below a subsequently deposited second layer. A protection layer is first deposited above the first layer using a first set of deposition parameters. This protection layer coats a surface of the first layer in a substantially conformal manner without forming voids in the trenches. A fill layer is then deposited above the protection layer using a second set of deposition parameters. The first set of deposition parameters is selected to reduce plasma charge-related damage relative to the second set of deposition parameters. The combination of the protection layer and the fill layer sufficiently electrically isolates the first layer from the second layer.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: June 15, 1999
    Assignee: Lam Research Corporation
    Inventors: Gregory A. Roche, David T. Hodul, Vahid Vahedi