Patents by Inventor Vincent Burkhart

Vincent Burkhart 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: 20230416922
    Abstract: A tool that suppresses or altogether eliminates arcing between a substrate pedestal and substrate is disclosed. The tool includes a processing chamber, a substrate pedestal for supporting a substrate within the processing chamber, and shower head positioned within the processing chamber. The shower head is arranged to dispense gas that is turned into a plasma, which develops a DC self-bias potential on the substrate surface. The tool also includes a bias control system configured to induce a DC potential to the substrate at a deliberate target electrical potential.
    Type: Application
    Filed: September 8, 2023
    Publication date: December 28, 2023
    Inventors: Yukinori SAKIYAMA, Karl Frederick LEESER, Vincent BURKHART
  • Patent number: 11835868
    Abstract: An ElectroStatic Chuck (ESC) including a chucking surface having at least a portion covered with a coating of silicon oxide (SiO2), silicon nitride (Si3N4) or a combination of both. The coating can be applied in situ a processing chamber of a substrate processing tool and periodically removed and re-applied in situ to create fresh coating.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: December 5, 2023
    Assignee: Lam Research Corporation
    Inventors: Stephen Topping, Vincent Burkhart
  • Publication number: 20230369091
    Abstract: A substrate support configured to support a substrate having a diameter D comprises a first inner electrode and a second inner electrode that are each D-shaped, define a first outer diameter that is less than D, and are configured to be connected to an electrostatic chuck voltage to clamp the substrate to the substrate support. An outer electrode comprises a ring-shaped outer portion that surrounds the first inner electrode and the second inner electrode and a center portion that pass between the first inner electrode and the second inner electrode to connect to opposite sides of an inner diameter of the ring-shaped outer portion. The inner diameter of the ring-shaped outer portion is greater than the diameter D such that the inner diameter of the ring-shaped outer portion and intersections between the center portion and the ring-shaped outer portion are located radially outside of the diameter D of the substrate.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 16, 2023
    Inventors: Feng BI, Yukinori SAKIYAMA, Niraj RANA, Pengyi ZHANG, Simran SHAH, Timothy Scott THOMAS, David FRENCH, Vincent BURKHART
  • Publication number: 20230073259
    Abstract: A baseplate for a substrate support includes a heater layer configured to selectively heat the baseplate and a heat spreader disposed between the heater layer and an upper surface of the baseplate. The heat spreader is configured to distribute heat provided by the heater layer throughout the baseplate. The baseplate includes a first material that has a first coefficient of thermal expansion (CTE) and a first thermal conductivity. The heat spreader includes a second material that has a second CTE and a second thermal conductivity greater than the first thermal conductivity.
    Type: Application
    Filed: February 17, 2021
    Publication date: March 9, 2023
    Inventors: Ramesh CHANDRASEKHARAN, Karl Frederick LEESER, Christopher GAGE, Seshu NIMMALA, Ramkishan Rao LINGAMPALLI, Joel HOLLINGSWORTH, Vincent BURKHART, William LAFFERTY, Sergey Georgiyevich BELOSTOTSKIY
  • Publication number: 20220415620
    Abstract: A thermal choke rod connecting a radio frequency source to a substrate support of a plasma processing system includes a tubular member having a first connector for connecting to an RF rod coupled to the substrate support and a second connector for connecting to an RF strap that couples to the RF source. A tubular segment extends between the first and second connectors. The first connector has a conically-shaped end region that tapers away from the inner surface thereof to an outer surface in a direction toward the tubular segment, and slits that extend for a prescribed distance from a terminal end of the first connector. The outer surface of the tubular segment has a threaded region for threaded engagement with an annular cap that fits over the first connector and reduces an inner diameter of the first connector upon contact with the conically-shaped end region of the first connector.
    Type: Application
    Filed: August 31, 2022
    Publication date: December 29, 2022
    Inventors: Timothy S. THOMAS, Vincent BURKHART, Joel HOLLINGSWORTH, David FRENCH, Damien SLEVIN
  • Publication number: 20220367229
    Abstract: A substrate processing system includes a substrate support and a power supply circuit. The substrate support is configured to support a substrate, wherein the substrate support comprises one or more heating elements. The power supply circuit includes: a direct current-to-alternating current converter configured to convert a first direct current voltage to a first alternating current voltage, where the direct current-to-alternating current converter comprises at least one switch; and an isolation circuit comprising one of a coupled inductor or a transformer. The one of the coupled inductor or the transformer is configured to convert the first alternating current voltage to and second alternating current voltage and isolate the one or more heating elements from an earth ground. The power supply circuit is configured to provide an output voltage to the one or more heating elements based on the second alternating current voltage.
    Type: Application
    Filed: October 5, 2020
    Publication date: November 17, 2022
    Inventors: Vincent BURKHART, Karl Frederick LEESER
  • Publication number: 20220084776
    Abstract: A method includes: receiving a first signal from a first sensor at a first filter and preventing passage of a first portion of the first signal via the first filter. The first portion of the first signal is at a first RF. A second portion of the first signal is indicative of a first temperature of a first electrode in a plasma chamber. The method further includes: outputting a second signal from the first filter; receiving the second signal at a second filter; and preventing passage of a portion of the second signal via the second filter. The portion of the second signal is at a second RF. The second RF is less than the first RF. The first filter and the second filter are implemented on a printed circuit board. The method further includes adjusting a temperature of the first electrode based on an output of the second filter.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Vincent BURKHART, Christopher Ramsayer, Mohan Thilagaraj
  • Patent number: 11232966
    Abstract: An electrostatic substrate chuck with substrate backside purging to prevent incidental backside deposition and that provides thermal sinking to prevent or mitigate the failure of seals.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: January 25, 2022
    Assignee: Lam Research Corporation
    Inventors: Timothy S. Thomas, Patrick Breiling, Ramesh Chandrasekharan, Vincent Burkhart
  • Publication number: 20210333715
    Abstract: An ElectroStatic Chuck (ESC) including a chucking surface having at least a portion covered with a coating of silicon oxide (SiO2), silicon nitride (Si3N4) or a combination of both. The coating can be applied in situ a processing chamber of a substrate processing tool and periodically removed and re-applied in situ to create fresh coating.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 28, 2021
    Inventors: Stephen TOPPING, Vincent BURKHART
  • Patent number: 11086233
    Abstract: An ElectroStatic Chuck (ESC) including a chucking surface having at least a portion covered with a coating of silicon oxide (SiO2), silicon nitride (Si3N4) or a combination of both. The coating can be applied in situ a processing chamber of a substrate processing tool and periodically removed and re-applied in situ to create fresh coating.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: August 10, 2021
    Assignee: Lam Research Corporation
    Inventors: Stephen Topping, Vincent Burkhart
  • Publication number: 20210043490
    Abstract: Various embodiments include an apparatus to retrofit into an electrostatic chuck (ESC) of an existing plasma-based processing system. The apparatus includes a tube adapter portion having a dielectric coating formed on an inner surface of the tube adapter portion to prevent arcing between high voltage electrodes within the tube adapter portion and a main body of the tube adapter portion during an operation of the plasma-based processing system, a number of insulative tubes with the high voltage electrodes to be enclosed therein, and an enlarged gap portion of the tube adapter portion proximate outboard ones of the plurality of insulative tubes to prevent arcing. Other methods of forming the ESC, and related devices, apparatuses, and systems are disclosed.
    Type: Application
    Filed: January 30, 2019
    Publication date: February 11, 2021
    Inventors: Miguel Benjamin Vasquez, Vincent Burkhart
  • Patent number: 10832936
    Abstract: A substrate support for a substrate processing system is provided and includes a body and mesas. The mesas are distributed across and extending from and in a direction away from the body. The mesas are configured to support a substrate. Each of the mesas includes a surface area that contacts and supports the substrate. Areal density of the mesas monotonically increases as a radial distance from a center of the substrate support increases.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 10, 2020
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Peter Woytowitz, Vincent Burkhart, Michael Rumer, Karl Leeser
  • Publication number: 20200048770
    Abstract: A Chemical Vapor Deposition (CVD) tool that suppresses or altogether eliminates arcing between a substrate pedestal and substrate. The CVD tool includes a Direct Current (DC) bias control system arranged to maintain a substrate pedestal provided in a processing chamber at a same or substantially the same DC bias voltage as developed by a plasma in the processing chamber. By maintaining the substrate pedestal and the substrate having the same potential as the plasma at the same or substantially the same voltage potential, arcing is suppressed or altogether eliminated.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 13, 2020
    Inventors: Yukinori SAKIYAMA, Karl Frederick LEESER, Vincent BURKHART
  • Publication number: 20190294050
    Abstract: An ElectroStatic Chuck (ESC) including a chucking surface having at least a portion covered with a coating of silicon oxide (SiO2), silicon nitride (Si3N4) or a combination of both. The coating can be applied in situ a processing chamber of a substrate processing tool and periodically removed and re-applied in situ to create fresh coating.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 26, 2019
    Inventors: Stephen TOPPING, Vincent BURKHART
  • Publication number: 20190237353
    Abstract: An electrostatic substrate chuck with substrate backside purging to prevent incidental backside deposition and that provides thermal sinking to prevent or mitigate the failure of seals.
    Type: Application
    Filed: February 1, 2018
    Publication date: August 1, 2019
    Inventors: Timothy S. THOMAS, Patrick BREILING, Ramesh CHANDRASEKHARAN, Vincent BURKHART
  • Publication number: 20180033672
    Abstract: A substrate support for a substrate processing system is provided and includes a body and mesas. The mesas are distributed across and extending from and in a direction away from the body. The mesas are configured to support a substrate. Each of the mesas includes a surface area that contacts and supports the substrate. Areal density of the mesas monotonically increases as a radial distance from a center of the substrate support increases.
    Type: Application
    Filed: July 27, 2016
    Publication date: February 1, 2018
    Inventors: Peter Woytowitz, Vincent Burkhart, Michael Rumer, Karl Leeser
  • Publication number: 20060076232
    Abstract: A continuously variable multi-position magnetron that is rotated about a central axis in back of a sputtering target at a freely selected radius. The position is dynamically controlled from the outside, for example, through a hydraulic actuator connected between a pivoting arm supporting the magnetron and an arm fixed to the shaft, by two coaxial shafts independent controllable from the outside and supporting the magnetron through a frog-leg mechanism, or a cable connected between the pivoting arms and moved by an external slider. The magnetron can be rotated at two, three, or more discrete radii or be moved in a continuous spiral pattern.
    Type: Application
    Filed: September 14, 2005
    Publication date: April 13, 2006
    Inventors: Keith Miller, Anantha Subramani, Maurice Ewert, Tza-Jing Gung, Hong Yang, Vincent Burkhart
  • Publication number: 20050211548
    Abstract: A dual-position magnetron that is rotated about a central axis in back of a sputtering target, particularly for sputtering an edge of a target of a barrier material onto a wafer and cleaning material redeposited at a center of the target. During target cleaning, wafer bias is reduced. In one embodiment, an arc-shaped magnetron is supported on a pivot arm pivoting on the end of a bracket fixed to the rotary shaft. A spring biases the pivot arm such that the magnetron is urged towards and overlies the target center. Centrifugal force at increased rotation rate overcomes the spring bias and shift the magnetron to an outer position with the long magnetron dimension aligned with the target edge. Mechanical stops prevent excessive movement in either direction. Other mechanisms include linear slides and actuators.
    Type: Application
    Filed: September 23, 2004
    Publication date: September 29, 2005
    Inventors: Tza-Jing Gung, Hong Yang, Anantha Subramani, Maurice Ewert, Keith Miller, Vincent Burkhart
  • Patent number: 6855235
    Abstract: Embodiments of the invention generally provide an electrochemical plating cell having an electrolyte container assembly configured to hold a plating solution therein, a head assembly positioned above the electrolyte container, the head assembly being configured to support a substrate during an electrochemical plating process, and an anode assembly positioned in a lower portion of the electrolyte container. The anode assembly generally includes a copper member having a substantially planar upper surface, at least one groove formed into the substantially planar upper surface, each of the at least one grooves originating in a central portion of the substantially planar anode surface and terminating at a position proximate a perimeter of the substantially planar upper surface, and at least one fluid outlet positioned at a perimeter of the substantially planar upper anode surface.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: February 15, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Harald Herchen, Craig Brodeur, Quinwei Wu, Peter Kimball, Vincent Burkhart
  • Patent number: 6843897
    Abstract: Embodiments of the invention generally provide an electrochemical plating cell having an electrolyte container assembly configured to hold a plating solution therein, a head assembly positioned above the electrolyte container, the head assembly being configured to support a substrate during an electrochemical plating process, and an anode assembly positioned in a lower portion of the electrolyte container. The anode assembly generally includes a copper member having a substantially planar upper surface, at least one groove formed into the substantially planar upper surface, each of the at least one grooves originating in a central portion of the substantially planar anode surface and terminating at a position proximate a perimeter of the substantially planar upper surface, and at least one fluid outlet positioned at a perimeter of the substantially planar upper anode surface.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: January 18, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Harald Herchen, Vincent Burkhart