Patents by Inventor Peter L. G. Ventzek

Peter L. G. Ventzek 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: 9455133
    Abstract: A chamber component configured to be coupled to a processing chamber is described. The chamber component comprises one or more adjustable gas passages through which a process gas is introduced to the process chamber. The adjustable gas passage may be configured to form a hollow cathode that creates a hollow cathode plasma in a hollow cathode region having one or more plasma surfaces in contact with the hollow cathode plasma. Therein, at least one of the one or more plasma surfaces is movable in order to vary the size of the hollow cathode region and adjust the properties of the hollow cathode plasma. Furthermore, one or more adjustable hollow cathodes may be utilized to adjust a plasma process for treating a substrate.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: September 27, 2016
    Assignee: Tokyo Electron Limited
    Inventors: Kazuki Denpoh, Peter L G Ventzek, Lin Xu, Lee Chen
  • Patent number: 9396900
    Abstract: A radio frequency (RF) power coupling system is provided. The system has an RF electrode configured to couple RF power to plasma in a plasma processing system, multiple power coupling elements configured to electrically couple RF power at multiple power coupling locations on the RF electrode, and an RF power system coupled to the multiple power coupling elements, and configured to couple an RF power signal to each of the multiple power coupling elements. The multiple power coupling elements include a center element located at the center of the RF electrode and peripheral elements located off-center from the center of the RF electrode. A first peripheral RF power signal differs from a second peripheral RF power signal in phase.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: July 19, 2016
    Assignee: Tokyo Electron Limited
    Inventors: Barton Lane, Lee Chen, Peter L. G. Ventzek, Merritt Funk, Jianping Zhao, Radha Sundararajan
  • Patent number: 9396955
    Abstract: A plasma tuning rod system is provided with one or more microwave cavities configured to couple electromagnetic (EM) energy in a desired EM wave mode to a plasma by generating resonant microwave energy in one or more plasma tuning rods within and/or adjacent to the plasma. One or more microwave cavity assemblies can be coupled to a process chamber, and can comprise one or more tuning spaces/cavities. Each tuning space/cavity can have one or more plasma tuning rods coupled thereto. The plasma tuning rods can be configured to couple the EM energy from the resonant cavities to the process space within the process chamber and thereby create uniform plasma within the process space.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 19, 2016
    Assignee: Tokyo Electron Limited
    Inventors: Jianping Zhao, Lee Chen, Merritt Funk, Iwao Toshihiko, Peter L. G. Ventzek
  • Publication number: 20160013067
    Abstract: This disclosure relates to a plasma processing system and methods for high precision etching of microelectronic substrates. The system may include a combination of microwave and radio frequency (RF) power sources that may generate plasma conditions to remove monolayer(s). The system may generation a first plasma to form a thin adsorption layer on the surface of the microelectronic substrate. The adsorbed layer may be removed when the system transition to a second plasma. The differences between the first and second plasma may be include the ion energy proximate to the substrate. For example, the first plasma may have an ion energy of less than 20 eV and the second plasma may have an ion energy greater than 20 eV.
    Type: Application
    Filed: July 9, 2015
    Publication date: January 14, 2016
    Inventors: Mingmei Wang, Alok Ranjan, Peter L. G. Ventzek
  • Publication number: 20160013063
    Abstract: This disclosure relates to a plasma processing system and methods for high precision etching of microelectronic substrates. The system may include a combination of microwave and radio frequency (RF) power sources that may generate plasma conditions to remove monolayer(s). The system may generation a first plasma to form a thin adsorption layer on the surface of the microelectronic substrate. The adsorbed layer may be removed when the system transition to a second plasma. The differences between the first and second plasma may be include the ion energy proximate to the substrate. For example, the first plasma may have an ion energy of less than 20 eV and the second plasma may have an ion energy greater than 20 eV.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 14, 2016
    Inventors: Alok Ranjan, Mingmei Wang, Peter L. G. Ventzek
  • Publication number: 20150348756
    Abstract: This disclosure relates to a plasma processing system that can use a single power source assembly to generate inductively coupled plasma (ICP) and surface wave plasma using the same physical hardware. The power source assembly may include an antenna plate that may include a conductive material be used an ICP coil for a radio frequency (RF) power source and as a slot antenna for a microwave source.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 3, 2015
    Applicant: Tokyo Electron Limited
    Inventors: Peter L.G. Ventzek, Lee Chen
  • Publication number: 20150318220
    Abstract: There is provided a plasma processing apparatus, which includes: a processing chamber into which a target substrate is loaded and in which a dopant is implanted into the target substrate using a plasma of a gas which contains an element used as the dopant; a wall probe configured to measure a change in voltage corresponding to a density of charged particles in the plasma generated within the processing chamber; an OES (Optical Emission Spectrometer) configured to measure a light emission intensity of the dopant existing in the plasma; and a calculation unit configured to calculate a dose amount of the dopant implanted into the target substrate, based on a measurement result obtained at the wall probe and a measurement result obtained at the OES.
    Type: Application
    Filed: April 30, 2015
    Publication date: November 5, 2015
    Inventors: Yuuki KOBAYASHI, Hirokazu UEDA, Kohei YAMASHITA, Peter L.G. VENTZEK
  • Patent number: 9177756
    Abstract: A semiconductor substrate processing system includes a processing chamber and a substrate support defined to support a substrate in the processing chamber. The system also includes a plasma chamber defined separate from the processing chamber. The plasma chamber is defined to generate a plasma. The system also includes a plurality of fluid transmission pathways fluidly connecting the plasma chamber to the processing chamber. The plurality of fluid transmission pathways are defined to supply reactive constituents of the plasma from the plasma chamber to the processing chamber. The system further includes an electrode disposed within the processing chamber separate from the substrate support. The system also includes a power supply electrically connected to the electrode. The power supply is defined to supply electrical power to the electrode so as to liberate electrons from the electrode into the processing chamber.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: November 3, 2015
    Assignee: Lam Research Corporation
    Inventors: John Patrick Holland, Peter L. G. Ventzek, Harmeet Singh, Jun Shinagawa, Akira Koshiishi
  • Patent number: 9111727
    Abstract: The invention provides a plurality of resonator subsystems. The resonator subsystems can comprise one or more resonant cavities configured to couple electromagnetic (EM) energy in a desired EM wave mode to plasma by generating resonant microwave energy in a resonant cavity adjacent the plasma. The resonator subsystem can be coupled to a process chamber using one or more interface subsystems and can comprise one or more resonant cavities, and each resonant cavity can have a plurality of plasma tuning rods coupled thereto. Some of the plasma tuning rods can be configured to couple the EM-energy from one or more of the resonant cavities to the process space within the process chamber.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 18, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Jianping Zhao, Lee Chen, Merritt Funk, Toshihiko Iwao, Peter L.G. Ventzek
  • Patent number: 9111728
    Abstract: A semiconductor substrate processing system includes a processing chamber and a substrate support defined to support a substrate in the processing chamber. The system also includes a plasma chamber defined separate from the processing chamber. The plasma chamber is defined to generate a plasma. The system also includes a plurality of fluid transmission pathways fluidly connecting the plasma chamber to the processing chamber. The plurality of fluid transmission pathways are defined to supply reactive constituents of the plasma from the plasma chamber to the processing chamber. The system further includes an electron injection device for injecting electrons into the processing chamber to control an electron energy distribution within the processing chamber so as to in turn control an ion-to-radical density ratio within the processing chamber. In one embodiment, an electron beam source is defined to transmit an electron beam through the processing chamber above and across the substrate support.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: August 18, 2015
    Assignee: Lam Research Corporation
    Inventors: John Patrick Holland, Peter L. G. Ventzek, Harmeet Singh, Jun Shinagawa, Akira Koshiishi
  • Publication number: 20150170925
    Abstract: This disclosure relates to a plasma processing system for controlling plasma density near the edge or perimeter of a substrate that is being processed. The plasma processing system may include a plasma chamber that can receive and process the substrate using plasma for etching the substrate, doping the substrate, or depositing a film on the substrate. This disclosure relates to a plasma processing system that may include a power electrode that may be opposite a bias electrode and a focus ring electrode that surrounds the substrate. In one embodiment, the power electrode may be coupled to a direct current (DC) source. Power applied to the bias electrode may be used to draw ions to the substrate. The plasma density may be made more uniform by applying a focus ring voltage to the focus ring that is disposed around the substrate and/or the bias electrode.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 18, 2015
    Inventors: Lee Chen, Peter L.G. Ventzek, Barton G. Lane
  • Patent number: 8980046
    Abstract: A top plate assembly is positioned above and spaced apart from the substrate support, such that a processing region exists between the top plate assembly and the substrate support. The top plate assembly includes a central plasma generation microchamber and a plurality of annular-shaped plasma generation microchambers positioned in a concentric manner about the central plasma generation microchamber. Adjacently positioned ones of the central and annular-shaped plasma generation microchambers are spaced apart from each other so as to form a number of axial exhaust vents therebetween. Each of the central and annular-shaped plasma generation microchambers is defined to generate a corresponding plasma therein and supply reactive constituents of its plasma to the processing region between the top plate assembly and the substrate support.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 17, 2015
    Assignee: Lam Research Corporation
    Inventors: Akira Koshiishi, Peter L. G. Ventzek, Jun Shinagawa, John Patrick Holland
  • Publication number: 20150044878
    Abstract: A semiconductor substrate processing system includes a chamber that includes a processing region and a substrate support. The system includes a top plate assembly disposed within the chamber above the substrate support. The top plate assembly includes first and second sets of plasma microchambers each formed into the lower surface of the top plate assembly. A first network of gas supply channels are formed through the top plate assembly to flow a first process gas to the first set of plasma microchambers to be transformed into a first plasma. A set of exhaust channels are formed through the top plate assembly. The second set of plasma microchambers are formed inside the set of exhaust channels. A second network of gas supply channels are formed through the top plate assembly to flow a second process gas to the second set of plasma microchambers to be transformed into a second plasma.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Inventors: John Patrick Holland, Peter L.G. Ventzek, Harmeet Singh, Richard Gottscho
  • Publication number: 20140356984
    Abstract: A method of doping a non-planar surface or a surface of a substrate subject to poor view factors is provided. The processing chamber comprises a window, walls, and a bottom of the processing chamber with oxygen-containing material, the processing chamber configured to supply oxygen radicals as an additive to doping materials. One or more quartz pieces are placed inside the processing chamber, where a magnet proximate to the processing chamber is configured to create a local magnetron plasma inside the processing chamber. Process gas containing an inert gas, sublimated doping materials, and optionally oxygen gas is flowed into the processing chamber; energy is applied to the process gas, generating a doping plasma used to expose a portion of the substrate surface while controlling operating variables to achieve target uniformity of dopant concentration, sheet resistance, degree of dopant clustering, and erosion of features on the substrate.
    Type: Application
    Filed: November 8, 2013
    Publication date: December 4, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Peter L. G. Ventzek, Yuuki Kobayashi
  • Patent number: 8900402
    Abstract: A semiconductor substrate processing system includes a substrate support defined to support a substrate in exposure to a processing region. The system also includes a first plasma chamber defined to generate a first plasma and supply reactive constituents of the first plasma to the processing region. The system also includes a second plasma chamber defined to generate a second plasma and supply reactive constituents of the second plasma to the processing region. The first and second plasma chambers are defined to be independently controlled.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: December 2, 2014
    Assignee: Lam Research Corporation
    Inventors: John Patrick Holland, Peter L. G. Ventzek, Harmeet Singh, Richard Gottscho
  • Patent number: 8900403
    Abstract: A semiconductor substrate processing system includes a chamber that includes a processing region and a substrate support. The system includes a top plate assembly disposed within the chamber above the substrate support. The top plate assembly includes first and second sets of plasma microchambers each formed into the lower surface of the top plate assembly. A first network of gas supply channels are formed through the top plate assembly to flow a first process gas to the first set of plasma microchambers to be transformed into a first plasma. A set of exhaust channels are formed through the top plate assembly. The second set of plasma microchambers are formed inside the set of exhaust channels. A second network of gas supply channels are formed through the top plate assembly to flow a second process gas to the second set of plasma microchambers to be transformed into a second plasma.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: December 2, 2014
    Assignee: Lam Research Corporation
    Inventors: John Patrick Holland, Peter L. G. Ventzek, Harmeet Singh, Richard Gottscho
  • Patent number: 8889534
    Abstract: A method of doping a non-planar surface or a surface of a substrate subject to poor view factors is provided. The processing chamber comprises a window, walls, and a bottom of the processing chamber with oxygen-containing material, the processing chamber configured to supply oxygen radicals as an additive to doping materials. One or more quartz pieces are placed inside the processing chamber, where a magnet proximate to the processing chamber is configured to create a local magnetron plasma inside the processing chamber. Process gas containing an inert gas, sublimated doping materials, and optionally oxygen gas is flowed into the processing chamber; energy is applied to the process gas, generating a doping plasma used to expose a portion of the substrate surface while controlling operating variables to achieve target uniformity of dopant concentration, sheet resistance, degree of dopant clustering, and erosion of features on the substrate.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: November 18, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Peter L. G. Ventzek, Yuuki Kobayashi
  • Publication number: 20140262040
    Abstract: A plasma-tuning rod configured for use with a microwave processing system. The waveguide includes a first dielectric portion having a first outer diameter. A second dielectric portion, with a second outer diameter greater than the first outer diameter surrounds the first dielectric portion, and may be coaxial therewith. In some embodiments of the present invention, a dielectric constant of the first dielectric portion may be equal to or greater than a dielectric constant of the second dielectric portion.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Jianping Zhao, Peter L. G. Ventzek, Lee Chen, Barton Lane, Merritt Funk, Radha Sundararajan, Iwao Toshihiko, Zhiying Chen
  • Publication number: 20140231016
    Abstract: Disclosed is a plasma processing apparatus including a processing container that defines a processing space, a mounting table, and a microwave introducing antenna. The mounting table includes a mounting region where a workpiece accommodated in the processing container is mounted. The microwave introducing antenna includes a dielectric window installed above the mounting table. The dielectric window includes a bottom surface region that adjoins the processing space. The bottom surface region is configured in an annular shape so as to limit a region where a surface wave is propagated to a region above an edge of the mounting region.
    Type: Application
    Filed: January 21, 2014
    Publication date: August 21, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Jun YOSHIKAWA, Toshihisa NOZAWA, Naoki MATSUMOTO, Peter L. G. VENTZEK
  • Patent number: 8808496
    Abstract: The invention provides a plurality of plasma tuning rod subsystems. The plasma tuning rod subsystems can comprise one or more microwave cavities configured to couple electromagnetic (EM) energy in a desired EM wave mode to a plasma by generating resonant microwave energy in one or more plasma tuning rods within and/or adjacent to the plasma. One or more microwave cavity assemblies can be coupled to a process chamber, and can comprise one or more tuning spaces/cavities. Each tuning space/cavity can have one or more plasma tuning rods coupled thereto. Some of the plasma tuning rods can be configured to couple the EM energy from one or more of the resonant cavities to the process space within the process chamber and thereby create uniform plasma within the process space.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 19, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Jianping Zhao, Lee Chen, Merritt Funk, Toshihiko Iwao, Peter L. G. Ventzek