Patents by Inventor Steven Donnell

Steven Donnell 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: 20240286398
    Abstract: Described are techniques and equipment (apparatus) for processing an electrostatic chuck at controlled process conditions, including, as an example, for processing an electrostatic chuck during a step of curing an adhesive that forms a bond between two layers of the electrostatic chuck.
    Type: Application
    Filed: April 25, 2024
    Publication date: August 29, 2024
    Inventors: Chiranjeevi PYDI, Nathan RICHARD, Steven DONNELL, Sara MERCHEL, Caleb MINSKY, Cerel MUNOZ, Yan LIU
  • Patent number: 11837492
    Abstract: Described are electrostatic chucks designed for use in supporting a workpiece during a workpiece processing step, the electrostatic chuck including a gas flow system.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: December 5, 2023
    Assignee: ENTEGRIS, INC.
    Inventors: Yan Liu, Jakub Rybczynski, Steven Donnell, Caleb Minsky, Chun Wang Chan
  • Publication number: 20230274967
    Abstract: Described are electrostatic chucks that are useful to support a workpiece during a step of processing the workpiece, the electrostatic chuck including a pattern of charge dissipation lines on an insulating layer, the lines having a first conductive layer and a second conductive layer and being arranged to define enclosed fields of the insulating layer between the lines.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 31, 2023
    Inventors: Jakub Rybczynski, Steven Donnell, Yan Liu, Caleb Minsky, Chandra Venkatraman, Carlo Waldfried
  • Patent number: 11742781
    Abstract: An electrostatic chuck solves the problem of wafer sticking by providing conductive paths on raised embossments that are bridged together and are connected to ground that support the wafer substrate above the surface of the electrostatic chuck. Further, laterally spaced electrode patterns and electrode elements which are spaced laterally and longitudinally away from the raised embossments reduce or eliminate electrical coupling during wafer clamping between conductively coated embossments and the electrode elements, thereby creating a low resistance path for charges remaining on the wafer after declamping to promptly travel to ground. The conductive bridge and electrode pattern configuration also substantially reduces or eliminates any charge build up on the conductive bridge(s) during clamping in order that charge build up in “islands” (worn portions of the insulator layer of the main field area) do not affect the charge dissipation from the wafer substrate through the conductive bridges to ground.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 29, 2023
    Assignee: ENTEGRIS, INC.
    Inventors: Yan Liu, Jakub Rybczynski, Steven Donnell, Chun Wang Chan
  • Publication number: 20230136703
    Abstract: Described are electrostatic chuck devices that are useful to support a workpiece while processing the workpiece, upper ceramic layer components of electrostatic chuck assemblies, the upper ceramic layer having a deposited dielectric layer, a relatively smooth finish, or both, and related methods.
    Type: Application
    Filed: October 26, 2022
    Publication date: May 4, 2023
    Inventors: Yan Liu, Jakub Rybczynski, Caleb Minsky, Steven Donnell
  • Patent number: 11612972
    Abstract: Described are electrostatic chucks that are useful to support a workpiece during a step of processing the workpiece, the electrostatic chuck including embossments that are made of multiple deposited layers, the layers including diamond-like carbon layers and layers that contain silicon-based materials such as silicon carbide layers.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: March 28, 2023
    Assignee: ENTEGRIS, INC.
    Inventors: Yan Liu, Steven Donnell, Jakub Rybczynski, Chun Wang Chan, Caleb Minsky
  • Publication number: 20230060192
    Abstract: Described are techniques and equipment (apparatus) for processing an electrostatic chuck at controlled process conditions, including, as an example, for processing an electrostatic chuck during a step of curing an adhesive that forms a bond between two layers of the electrostatic chuck.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 2, 2023
    Inventors: Chiranjeevi PYDI, Nathan RICHARD, Steven DONNELL, Sara MERCHEL, Caleb MINSKY, Cerel MUNOZ, Yan LIU
  • Patent number: 11309207
    Abstract: Described are multi-layer electrostatic chucks used to secure and support a wafer substrate during wafer processing, and related methods, wherein the chuck includes a grounding structure that includes a grounding layer and a grounding pin.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: April 19, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Steven Donnell, Jakub Rybczynski, Chun Wang Chan, Yan Liu
  • Publication number: 20220063035
    Abstract: Described are electrostatic chucks that are useful to support a workpiece during a step of processing the workpiece, the electrostatic chuck including embossments that are made of multiple deposited layers, the layers including diamond-like carbon layers and layers that contain silicon-based materials such as silicon carbide layers.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Inventors: Yan LIU, Steven DONNELL, Jakub RYBCZYNSKI, Chun Wang CHAN, Caleb MINSKY
  • Publication number: 20210351061
    Abstract: Described are electrostatic chucks designed for use in supporting a workpiece during a workpiece processing step, the electrostatic chuck including a gas flow system.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 11, 2021
    Inventors: Yan LIU, Jakub RYBCZYNSKI, Steven DONNELL, Caleb MINSKY, Chun Wang CHAN
  • Publication number: 20210028046
    Abstract: Described are multi-layer electrostatic chucks used to secure and support a wafer substrate during wafer processing, and related methods, wherein the chuck includes a grounding structure that includes a grounding layer and a grounding pin.
    Type: Application
    Filed: July 24, 2020
    Publication date: January 28, 2021
    Inventors: Steven DONNELL, Jakub RYBCZYNSKI, Chun Wang CHAN, Yan LIU
  • Publication number: 20200161158
    Abstract: An electrostatic chuck solves the problem of wafer sticking by providing conductive paths on raised embossments that are bridged together and are connected to ground that support the wafer substrate above the surface of the electrostatic chuck. Further, laterally spaced electrode patterns and electrode elements which are spaced laterally and longitudinally away from the raised embossments reduce or eliminate electrical coupling during wafer clamping between conductively coated embossments and the electrode elements, thereby creating a low resistance path for charges remaining on the wafer after declamping to promptly travel to ground. The conductive bridge and electrode pattern configuration also substantially reduces or eliminates any charge build up on the conductive bridge(s) during clamping in order that charge build up in “islands” (worn portions of the insulator layer of the main field area) do not affect the charge dissipation from the wafer substrate through the conductive bridges to ground.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 21, 2020
    Inventors: Yan LIU, Jakub RYBCZYNSKI, Steven DONNELL, Chun Wang CHAN
  • Patent number: 9692325
    Abstract: In accordance with an embodiment of the invention, there is provided an electrostatic chuck comprising a conductive path covering at least a portion of a workpiece-contacting surface of a gas seal ring of the electrostatic chuck, the conductive path comprising at least a portion of an electrical path to ground; and a main field area of a workpiece-contacting surface of the electrostatic chuck comprising a surface resistivity in the range of from about 108 to about 1012 ohms per square.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 27, 2017
    Assignees: Entegris, Inc., Varian Semiconductor Equipment Associates, Inc.
    Inventors: David Suuronen, Lyudmila Stone, Julian Blake, Dale K. Stone, Richard A. Cooke, Steven Donnell, Chandra Venkatraman
  • Patent number: 8879233
    Abstract: In accordance with an embodiment of the invention, there is provided an electrostatic chuck. The electrostatic chuck comprises a surface layer activated by a voltage in an electrode to form an electric charge to electrostatically clamp a substrate to the electrostatic chuck. The surface layer includes a plurality of polymer protrusions and a charge control layer to which the plurality of polymer protrusions adhere, the plurality of polymer protrusions extending to a height above portions of the charge control layer surrounding the plurality of polymer protrusions to support the substrate upon the plurality of polymer protrusions during electrostatic clamping of the substrate.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: November 4, 2014
    Assignee: Entegris, Inc.
    Inventors: Richard A. Cooke, Nate Richard, Steven Donnell, Mark Vose, Yan Liu
  • Publication number: 20130155569
    Abstract: In accordance with an embodiment of the invention, there is provided an electrostatic chuck comprising a conductive path covering at least a portion of a workpiece-contacting surface of a gas seal ring of the electrostatic chuck, the conductive path comprising at least a portion of an electrical path to ground; and a main field area of a workpiece-contacting surface of the electrostatic chuck comprising a surface resistivity in the range of from about 108 to about 1012 ohms per square.
    Type: Application
    Filed: September 8, 2011
    Publication date: June 20, 2013
    Applicants: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC., ENTEGRIS, INC.
    Inventors: David Suuronen, Lyudmila Stone, Julian Blake, Dale K. Stone, Richard A. Cooke, Steven Donnell, Chandra Venkatraman
  • Publication number: 20130108863
    Abstract: In accordance with an embodiment of the invention, there is provided a coated graphite article. The article comprises graphite; and a conductive coating overlaying at least a portion of the graphite. The conductive coating comprises a through-thickness resistance of less than about 50 ohms as measured through the thickness of the graphite and the conductive coating. In accordance with another embodiment of the invention, there is provided a method for manufacturing a graphite article comprising a conductive coating. The method comprises treating graphite of the article with a reactive ion etch process; and after treating the graphite with the reactive ion etch process, applying the conductive coating over at least a portion of the graphite. In a further embodiment according to the invention, there is provided a method for refurbishing a graphite article comprising graphite and an overlaying conductive coating.
    Type: Application
    Filed: April 15, 2011
    Publication date: May 2, 2013
    Inventors: Richard A. Cooke, Nilesh Gunda, Steven Donnell, Yan Liu
  • Publication number: 20120044609
    Abstract: In accordance with an embodiment of the invention, there is provided an electrostatic chuck. The electrostatic chuck comprises a surface layer activated by a voltage in an electrode to form an electric charge to electrostatically clamp a substrate to the electrostatic chuck. The surface layer includes a plurality of polymer protrusions and a charge control layer to which the plurality of polymer protrusions adhere, the plurality of polymer protrusions extending to a height above portions of the charge control layer surrounding the plurality of polymer protrusions to support the substrate upon the plurality of polymer protrusions during electrostatic clamping of the substrate.
    Type: Application
    Filed: May 13, 2010
    Publication date: February 23, 2012
    Inventors: Richard A. Cooke, Nate Richard, Steven Donnell, Mark Vose, Yan Liu