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).
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Patent number: 11610765Abstract: 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: GrantFiled: August 9, 2019Date of Patent: March 21, 2023Assignee: APJeT, Inc.Inventors: Gregory A. Roche, David W. Tyner, Carrie E. Cornelius, Joseph H. Cross
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Publication number: 20220125971Abstract: 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: ApplicationFiled: October 22, 2021Publication date: April 28, 2022Applicant: APJeT, Inc.Inventors: David W. Tyner, Gregory A. Roche, Preston A. Roche
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Patent number: 11149370Abstract: 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: GrantFiled: March 14, 2013Date of Patent: October 19, 2021Assignee: APJeT, Inc.Inventors: Carrie E. Cornelius, Gregory A. Roche, David W. Tyner
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Publication number: 20160348292Abstract: 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: ApplicationFiled: August 8, 2016Publication date: December 1, 2016Applicant: APJeT, Inc.Inventors: Carrie E. Cornelius, Gregory A. Roche, David W. Tyner
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Publication number: 20140076861Abstract: 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: ApplicationFiled: March 14, 2013Publication date: March 20, 2014Inventors: Carrie E. Cornelius, Gregory A. Roche, David W. Tyner
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Patent number: 8545669Abstract: 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: GrantFiled: February 25, 2005Date of Patent: October 1, 2013Assignee: KLA-Tencor CorporationInventors: Leonard J. Mahoney, Carl W. Almgren, Gregory A. Roche, William W. Saylor, William D. Sproul, Hendrik V. Walde
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Patent number: 7192505Abstract: 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: GrantFiled: September 27, 2004Date of Patent: March 20, 2007Assignee: Advanced Plasma, Inc.Inventors: Gregory A. Roche, Leonard J. Mahoney, Daniel C. Carter, Steven J. Roberts
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Publication number: 20060171848Abstract: 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: ApplicationFiled: January 31, 2005Publication date: August 3, 2006Inventors: Gregory Roche, Daniel Carter, David Madsen, Leonard Mahoney
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Publication number: 20050284570Abstract: 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: ApplicationFiled: June 24, 2004Publication date: December 29, 2005Inventors: Daniel Doran, Leonard Mahoney, Steven Roberts, Gregory Roche
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Publication number: 20050151544Abstract: 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: ApplicationFiled: February 25, 2005Publication date: July 14, 2005Inventors: Leonard Mahoney, Carl Almgren, Gregory Roche, William Saylor, William Sproul, Hendrik Walde
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Patent number: 6902646Abstract: 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: GrantFiled: August 14, 2003Date of Patent: June 7, 2005Assignee: Advanced Energy Industries, Inc.Inventors: Leonard J. Mahoney, Carl W. Almgren, Gregory A. Roche, William W. Saylor, William D. Sproul, Hendrik V. Walde
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Publication number: 20050039852Abstract: 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: ApplicationFiled: September 27, 2004Publication date: February 24, 2005Inventors: Gregory Roche, Leonard Mahoney, Daniel Carter, Steven Roberts
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Publication number: 20050034812Abstract: 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: ApplicationFiled: September 27, 2004Publication date: February 17, 2005Inventors: Gregory Roche, Leonard Mahoney, Daniel Carter, Steven Roberts
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Publication number: 20050034811Abstract: 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: ApplicationFiled: August 14, 2003Publication date: February 17, 2005Inventors: Leonard Mahoney, Carl Almgren, Gregory Roche, William Saylor, William Sproul, Hendrik Walde
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Publication number: 20050011611Abstract: 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: ApplicationFiled: August 17, 2004Publication date: January 20, 2005Inventors: Leonard Mahoney, Daniel Carter, Steven Roberts, Gregory Roche
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Patent number: 6830650Abstract: 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: GrantFiled: July 12, 2002Date of Patent: December 14, 2004Assignee: Advanced Energy Industries, Inc.Inventors: Gregory A. Roche, Leonard J. Mahoney, Daniel C. Carter, Steven J. Roberts
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Publication number: 20040007326Abstract: 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: ApplicationFiled: July 12, 2002Publication date: January 15, 2004Inventors: Gregory A. Roche, Leonard J. Mahoney, Daniel C. Carter, Steven J. Roberts
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Patent number: 6432260Abstract: 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: GrantFiled: August 7, 2000Date of Patent: August 13, 2002Assignee: Advanced Energy Industries, Inc.Inventors: Leonard J. Mahoney, Gregory A. Roche, Daniel C. Carter
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Patent number: 6200651Abstract: 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: GrantFiled: June 30, 1997Date of Patent: March 13, 2001Assignee: Lam Research CorporationInventors: Gregory A. Roche, William R. Harshbarger
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Patent number: 5913140Abstract: 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: GrantFiled: December 23, 1996Date of Patent: June 15, 1999Assignee: Lam Research CorporationInventors: Gregory A. Roche, David T. Hodul, Vahid Vahedi