Patents by Inventor Paul McHugh

Paul McHugh 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: 20050189215
    Abstract: An apparatus and method for electrochemical processing of microelectronic workpieces in a reaction vessel.
    Type: Application
    Filed: March 29, 2005
    Publication date: September 1, 2005
    Inventors: Kyle Hanson, Thomas Ritzdorf, Gregory Wilson, Paul McHugh
  • Publication number: 20050189214
    Abstract: An apparatus and method for electrochemical processing of microelectronic workpieces in a reaction vessel.
    Type: Application
    Filed: March 29, 2005
    Publication date: September 1, 2005
    Inventors: Kyle Hanson, Thomas Ritzdorf, Gregory Wilson, Paul McHugh
  • Publication number: 20050189227
    Abstract: A facility for selecting and refining electrical parameters for processing a microelectronic workpiece in a processing chamber is described. The facility initially configures the electrical parameters in accordance with either a mathematical model of the processing chamber or experimental data derived from operating the actual processing chamber. After a workpiece is processed with the initial parameter configuration, the results are measured and a sensitivity matrix based upon the mathematical model of the processing chamber is used to select new parameters that correct for any deficiencies measured in the processing of the first workpiece. These parameters are then used in processing a second workpiece, which may be similarly measured, and the results used to further refine the parameters.
    Type: Application
    Filed: March 31, 2005
    Publication date: September 1, 2005
    Inventors: Gregory Wilson, Paul McHugh, Robert Weaver, Thomas Ritzdorf
  • Publication number: 20050183959
    Abstract: A facility for selecting and refining electrical parameters for processing a microelectronic workpiece in a processing chamber is described. The facility initially configures the electrical parameters in accordance with either a mathematical model of the processing chamber or experimental data derived from operating the actual processing chamber. After a workpiece is processed with the initial parameter configuration, the results are measured and a sensitivity matrix based upon the mathematical model of the processing chamber is used to select new parameters that correct for any deficiencies measured in the processing of the first workpiece. These parameters are then used in processing a second workpiece, which may be similarly measured, and the results used to further refine the parameters.
    Type: Application
    Filed: March 31, 2005
    Publication date: August 25, 2005
    Inventors: Gregory Wilson, Paul McHugh, Robert Weaver, Thomas Ritzdorf
  • Publication number: 20050178667
    Abstract: A method and system for electrolytically processing a microelectronic workpiece. In one embodiment, the method includes contacting the workpiece with an electrolytic fluid, positioning one or more electrodes in electrical communication with the workpiece, directing an electrical current through the electrolytic fluid from the electrodes to the workpiece or vice versa, and actively changing a distribution of the current at the workpiece during the process. For example, the current can be changed such that a current ratio of at least one electrical current to the sum of the electrical currents shifts from a first current ratio value to a second current ratio value. Accordingly, the current applied to the workpiece can be adjusted to achieve a target shape for a conductive layer on the workpiece, or to account for temporally and/or spatially varying characteristics of the electrolytic process.
    Type: Application
    Filed: January 12, 2005
    Publication date: August 18, 2005
    Inventors: Gregory Wilson, Kenneth Gibbons, Paul McHugh
  • Publication number: 20050167273
    Abstract: A facility for selecting and refining electrical parameters for processing a microelectronic workpiece in a processing chamber is described. The facility initially configures the electrical parameters in accordance with either a mathematical model of the processing chamber or experimental data derived from operating the actual processing chamber. After a workpiece is processed with the initial parameter configuration, the results are measured and a sensitivity matrix based upon the mathematical model of the processing chamber is used to select new parameters that correct for any deficiencies measured in the processing of the first workpiece. These parameters are then used in processing a second workpiece, which may be similarly measured, and the results used to further refine the parameters.
    Type: Application
    Filed: March 31, 2005
    Publication date: August 4, 2005
    Inventors: Gregory Wilson, Paul McHugh, Robert Weaver, Thomas Ritzdorf
  • Publication number: 20050167265
    Abstract: A reactor for electrochemically processing at least one surface of a microelectronic workpiece is set forth. The reactor comprises a reactor head including a workpiece support that has one or more electrical contacts positioned to make electrical contact with the microelectronic workpiece. The reactor also includes a processing container having a plurality of nozzles angularly disposed in a sidewall of a principal fluid flow chamber at a level within the principal fluid flow chamber below a surface of a bath of processing fluid normally contained therein during electrochemical processing. A plurality of anodes are disposed at different elevations in the principal fluid flow chamber so as to place them at difference distances from a microelectronic workpiece under process without an intermediate diffuser between the plurality of anodes and the microelectronic workpiece under process. One or more of the plurality of anodes may be in close proximity to the workpiece under process.
    Type: Application
    Filed: October 28, 2004
    Publication date: August 4, 2005
    Inventors: Gregory Wilson, Paul McHugh, Kyle Hanson
  • Publication number: 20050167274
    Abstract: A facility for selecting and refining electrical parameters for processing a microelectronic workpiece in a processing chamber is described. The facility initially configures the electrical parameters in accordance with either a mathematical model of the processing chamber or experimental data derived from operating the actual processing chamber. After a workpiece is processed with the initial parameter configuration, the results are measured and a sensitivity matrix based upon the mathematical model of the processing chamber is used to select new parameters that correct for any deficiencies measured in the processing of the first workpiece. These parameters are then used in processing a second workpiece, which may be similarly measured, and the results used to further refine the parameters.
    Type: Application
    Filed: March 31, 2005
    Publication date: August 4, 2005
    Inventors: Gregory Wilson, Paul McHugh, Robert Weaver, Thomas Ritzdorf
  • Publication number: 20050109633
    Abstract: A reactor for electrochemically processing at least one surface of a microelectronic workpiece is set forth. The reactor comprises a reactor head including a workpiece support that has one or more electrical contacts positioned to make electrical contact with the microelectronic workpiece. The reactor also includes a processing container having a plurality of nozzles angularly disposed in a sidewall of a principal fluid flow chamber at a level within the principal fluid flow chamber below a surface of a bath of processing fluid normally contained therein during electrochemical processing. A plurality of anodes are disposed at different elevations in the principal fluid flow chamber so as to place them at difference distances from a microelectronic workpiece under process without an intermediate diffuser between the plurality of anodes and the microelectronic workpiece under process. One or more of the plurality of anodes may be in close proximity to the workpiece under process.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 26, 2005
    Inventors: Gregory Wilson, Paul McHugh, Kyle Hanson
  • Publication number: 20050109629
    Abstract: A reactor for electrochemically processing at least one surface of a microelectronic workpiece is set forth. The reactor comprises a reactor head including a workpiece support that has one or more electrical contacts positioned to make electrical contact with the microelectronic workpiece. The reactor also includes a processing container having a plurality of nozzles angularly disposed in a sidewall of a principal fluid flow chamber at a level within the principal fluid flow chamber below a surface of a bath of processing fluid normally contained therein during electrochemical processing. A plurality of anodes are disposed at different elevations in the principal fluid flow chamber so as to place them at difference distances from a microelectronic workpiece under process without an intermediate diffuser between the plurality of anodes and the microelectronic workpiece under process. One or more of the plurality of anodes may be in close proximity to the workpiece under process.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 26, 2005
    Inventors: Gregory Wilson, Paul McHugh, Kyle Hanson
  • Publication number: 20050109625
    Abstract: A reactor for electrochemically processing at least one surface of a microelectronic workpiece is set forth. The reactor comprises a reactor head including a workpiece support that has one or more electrical contacts positioned to make electrical contact with the microelectronic workpiece. The reactor also includes a processing container having a plurality of nozzles angularly disposed in a sidewall of a principal fluid flow chamber at a level within the principal fluid flow chamber below a surface of a bath of processing fluid normally contained therein during electrochemical processing. A plurality of anodes are disposed at different elevations in the principal fluid flow chamber so as to place them at difference distances from a microelectronic workpiece under process without an intermediate diffuser between the plurality of anodes and the microelectronic workpiece under process. One or more of the plurality of anodes may be in close proximity to the workpiece under process.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 26, 2005
    Inventors: Gregory Wilson, Paul McHugh, Kyle Hanson
  • Publication number: 20050109628
    Abstract: A reactor for electrochemically processing at least one surface of a microelectronic workpiece is set forth. The reactor comprises a reactor head including a workpiece support that has one or more electrical contacts positioned to make electrical contact with the microelectronic workpiece. The reactor also includes a processing container having a plurality of nozzles angularly disposed in a sidewall of a principal fluid flow chamber at a level within the principal fluid flow chamber below a surface of a bath of processing fluid normally contained therein during electrochemical processing. A plurality of anodes are disposed at different elevations in the principal fluid flow chamber so as to place them at difference distances from a microelectronic workpiece under process without an intermediate diffuser between the plurality of anodes and the microelectronic workpiece under process. One or more of the plurality of anodes may be in close proximity to the workpiece under process.
    Type: Application
    Filed: October 28, 2004
    Publication date: May 26, 2005
    Inventors: Gregory Wilson, Paul McHugh, Kyle Hanson
  • Publication number: 20050107971
    Abstract: A processing apparatus for processing a microelectronic workpiece includes a metrology unit and a control, signal-connected to the metrology unit. The control can modify a process recipe or a process sequence of the processing apparatus based on a feed forward or a feed back signal from the metrology unit. A seed layer deposition tool, a process layer electrochemical deposition tool, and a chemical mechanical polishing tool, arranged for sequential processing of a workpiece, can be controlled as an integrated system using one or more metrology units. A metrology unit can be located at each tool to measure workpiece parameters. Each of the metrology units can be used as a feed forward control and/or a feed back control at each of the tools.
    Type: Application
    Filed: October 14, 2003
    Publication date: May 19, 2005
    Inventors: Thomas Ritzdorf, Steve Eudy, Gregory Wilson, Paul McHugh
  • Publication number: 20050084987
    Abstract: A facility for selecting and refining electrical parameters for processing a microelectronic workpiece in a processing chamber is described. The facility initially configures the electrical parameters in accordance with either a mathematical model of the processing chamber or experimental data derived from operating the actual processing chamber. After a workpiece is processed with the initial parameter configuration, the results are measured and a sensitivity matrix based upon the mathematical model of the processing chamber is used to select new parameters that correct for any deficiencies measured in the processing of the first workpiece. These parameters are then used in processing a second workpiece, which may be similarly measured, and the results used to further refine the parameters.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 21, 2005
    Inventors: Gregory Wilson, Paul McHugh, Robert Weaver, Thomas Ritzdorf,
  • Publication number: 20050061676
    Abstract: A reactor for electrochemically processing at least one surface of a microelectronic workpiece is set forth. The reactor comprises a reactor head including a workpiece support that has one or more electrical contacts positioned to make electrical contact with the microelectronic workpiece. The reactor also includes a processing container having a plurality of nozzles angularly disposed in a sidewall of a principal fluid flow chamber at a level within the principal fluid flow chamber below a surface of a bath of processing fluid normally contained therein during electrochemical processing. A plurality of anodes are disposed at different elevations in the principal fluid flow chamber so as to place them at difference distances from a microelectronic workpiece under process without an intermediate diffuser between the plurality of anodes and the microelectronic workpiece under process. One or more of the plurality of anodes may be in close proximity to the workpiece under process.
    Type: Application
    Filed: October 28, 2004
    Publication date: March 24, 2005
    Inventors: Gregory Wilson, Paul McHugh, Kyle Hanson
  • Publication number: 20050050767
    Abstract: A wet chemical processing chamber comprising a fixed unit, a detachable unit releasably coupled to the fixed unit, a seal contacting the fixed unit and the detachable unit, and a processing component disposed in the fixed unit and/or the detachable unit. The fixed unit can have a first flow system configured to direct a processing fluid through the fixed unit and a mounting fixture for fixedly attaching the fixed unit to a platform or deck of an integrated processing tool. The detachable unit can include a second flow system configured to direct the processing fluid to and/or from the first flow system of the fixed unit. The seal has an orifice through which processing fluid can flow between the first and second flow systems, and the processing component can impart a property to the processing fluid for processing a surface on a microfeature workpiece having submicron microfeatures.
    Type: Application
    Filed: June 3, 2004
    Publication date: March 10, 2005
    Inventors: Kyle Hanson, Kert Dolechek, Paul McHugh, Gregory Wilson, Jeffry Davis, Randy Harris
  • Publication number: 20050034977
    Abstract: An electrochemical deposition chamber comprises a head assembly and a vessel under the head assembly. The head assembly includes a workpiece holder configured to position a microfeature workpiece at a processing location and electrical contacts arranged to provide electrical current to a layer on the workpiece. The vessel has a fixed unit including a mounting fixture to attach the fixed unit to a deck of a tool, a detachable unit releasably attachable to the fixed unit below the mounting fixture to be positioned below the deck of the tool, an interface element between the fixed unit and the detachable unit to control processing fluid between the fixed unit and the detachable unit, and an attachment system releasably coupling the detachable unit to the fixed unit. The electrochemical deposition chamber also includes an electrode in the detachable unit.
    Type: Application
    Filed: June 3, 2004
    Publication date: February 17, 2005
    Inventors: Kyle Hanson, Kert Dolechek, Paul McHugh, Gregory Wilson
  • Publication number: 20050006241
    Abstract: Paddles and enclosures for processing microfeature workpieces are disclosed. A paddle device having multiple paddles is positioned in an enclosure to reciprocate back and forth along a generally linear path. The clearances between the paddles, the workpiece and the walls of the chamber are relatively small to increase the flow agitation at the surface of the workpiece and enhance the mass transfer process occurring there. The paddles are shaped to reduce or eliminate electrical shadowing effects created at the surface of the workpiece during electrochemical processing. Paddles on the same paddle device may have different shapes to reduce the likelihood for creating three-dimensional effects in the flow field proximate to the surface of the workpiece. The reciprocation stroke of the paddles may shift to further reduce shadowing.
    Type: Application
    Filed: December 11, 2003
    Publication date: January 13, 2005
    Inventors: Paul McHugh, Gregory Wilson, Daniel Woodruff, Nolan Zimmerman, James Erickson
  • Publication number: 20050000817
    Abstract: Reactors having multiple electrodes and/or enclosed reciprocating paddles are disclosed. The reactor can include multiple electrodes spaced apart from a process location to provide virtual electrodes proximate to the process location for transferring material to or from the workpiece. A magnet may be positioned proximate to the process plane to orient magnetically sensitive material deposited on the workpiece. The electrodes may be removable from the reactor without passing them through the magnet to reduce interference between the electrodes and the magnet. The workpiece may be carried by a rotatable workpiece support to orient the workpiece for processing. At least one of the electrodes can operate as a current thief to reduce terminal effects at the periphery of the workpiece.
    Type: Application
    Filed: December 11, 2003
    Publication date: January 6, 2005
    Inventors: Paul McHugh, Gregory Wilson, Daniel Woodruff, Nolan Zimmerman, James Erickson
  • Patent number: 5908292
    Abstract: A vertically oriented thermal processor for processing batches of semiconductor wafers held within a processing chamber. The processing chamber is contained within a processing vessel. Processing gases are discharged through a processing chamber outflow. An outflow cooler is included to cool gases exhausting from the processing chamber outflow. The outflow cooler includes a fluid heat exchanger and a flow diverter which directs the exhausting gases against cooled walls of the outflow cooler. The cooler also preferably has a liner which lines a casing to which the heat exchanger is connected.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: June 1, 1999
    Assignee: Semitool, Inc.
    Inventors: John Z. Smith, Martin Jones, Paul McHugh, Robert A. Weaver