Patents by Inventor Chunlei Zhang

Chunlei Zhang 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: 20200037399
    Abstract: Implementations described herein provide a method for processing a substrate on a substrate support assembly which enables both lateral and azimuthal tuning of the heat transfer between an electrostatic chuck and a substrate. The method includes processing a first substrate using a first temperature profile on a substrate support assembly having primary heaters and spatially tunable heaters. A deviation profile is determined from a result of processing the first substrate. The spatially tunable heaters are controlled in response to the deviation profile to enable discrete lateral and azimuthal tuning of local hot or cold spots on the substrate support assembly in forming a second temperature profile. A second substrate is then processed using the second temperature profile.
    Type: Application
    Filed: October 8, 2019
    Publication date: January 30, 2020
    Inventors: Chunlei ZHANG, Phillip CRIMINALE, Steven E. BABAYAN, David ULLSTROM
  • Publication number: 20200015367
    Abstract: The present application relates to a display screen. The display screen includes: a screen main body having a main display region and a chamfered region adjacent to the main display region, and a cover plate sealing the screen main body. The cover plate includes a first light transmission region corresponding to the main display region and a second light transmission region corresponding to the chamfered region, and a light transmittance of the second light transmission region is lower than a light transmittance of the first light transmission region.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Inventor: Chunlei ZHANG
  • Patent number: 10504765
    Abstract: Embodiments include an electrostatic chuck assembly having an electrostatic chuck mounted on an insulator. The electrostatic chuck and insulator may be within a chamber volume of a process chamber. In an embodiment, a ground shield surrounds the electrostatic chuck and the insulator, and a gap between the ground shield and the electrostatic chuck provides an environment at risk for electric field emission. A dielectric filler can be placed within the gap to reduce a likelihood of electric field emission. The dielectric filler can have a flexible outer surface that covers or attaches to the electrostatic chuck, or an interface between the electrostatic chuck and the insulator Other embodiments are also described and claimed.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: December 10, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Kartik Ramaswamy, Anwar Husain, Haitao Wang, Evans Yip Lee, Jaeyong Cho, Hamid Noorbakhsh, Kenny L. Doan, Sergio Fukuda Shoji, Chunlei Zhang
  • Patent number: 10440777
    Abstract: Implementations described herein provide a method for processing a substrate on a substrate support assembly which enables both lateral and azimuthal tuning of the heat transfer between an electrostatic chuck and a substrate. The method includes processing a first substrate using a first temperature profile on the ESC having primary heaters and spatially tunable heaters. A deviation profile is determined from a result of processing the first substrate from a target result profile. The first temperature profile is adjusted to a second temperature profile on the ESC based on the deviation profile. Adjusting to the second temperature profile includes incrementing the power to one or more spatially tunable heaters in one or more discrete locations corresponding to the deviations profile. A second substrate is then processed on the ESC using the second temperature profile.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: October 8, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Chunlei Zhang, Phillip Criminale, Steven E. Babayan, David Ullstrom
  • Patent number: 10428456
    Abstract: Disclosed is a steel wire rope for conveyor belts. The steel wire rope includes a central steel wire, a steel wire layer externally wound on the central steel wire, and a plurality of external steel wire strands. Each external steel wire strand includes a core steel wire and N external steel wires. The central steel wire, the steel wire layer externally wound on the central steel wire, and the plurality of external steel wire strands are wound into a steel wire rope for conveyor belts in one step. The steel wire layer is externally wound on the outer side of the central steel wire, the external steel wire strands are wound to wrap the outer side of the steel wire layer, and the external steel wire strands are in line contact with the steel wire layer.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: October 1, 2019
    Assignees: JIANGSU FASTEN TECHNOLOGY DEVELOPMENT CENTER CO., LTD, JIANGSU FASTEN SPECIAL STEEL PRODUCTS CO., LTD
    Inventors: Lihua Liu, Chunlei Zhang, Hongfang Liu, Yongqing Shao, Yawei Zhang, Kai Xu, Yi Lu
  • Publication number: 20190281541
    Abstract: This application discloses a network slice selection method and apparatus, to resolve a prior-art problem of large transmission load on a network side. The method performed by a core network device includes: receiving a first request message sent by a terminal device, where the first request message is used to request to allocate, to the terminal device, a network slice that provides a business service; sending a query message to a SSF, where the query message carries user information of the terminal device, and is used to query for a network slice that is capable of providing a business service for the terminal device; and after receiving slice information of the network slice that is capable of providing the business service required by the terminal device and that is determined based on the user information, forwarding the first request message to the network slice corresponding to the slice information.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: Chunlei ZHANG, Guangchao Zhou, Heng Chen, Zhiyong Zhou
  • Patent number: 10410889
    Abstract: In some embodiments, a plasma processing apparatus includes a processing chamber to process a substrate; a mounting surface defined within the processing chamber to support a substrate disposed within the processing chamber; a showerhead disposed within the processing chamber and aligned so as to face the mounting surface, the showerhead defining a plurality of orifices to introduce a process gas into the processing chamber toward a substrate disposed within the processing chamber; and one or more magnets supported by the showerhead and arranged so that a radial component of a magnetic field applied by each of the one or more magnets has a higher flux density proximate a first region corresponding to an edge surface region of a substrate when disposed within the processing chamber than at a second region corresponding to an interior surface region of a substrate when disposed within the processing chamber.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 10, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: S. M. Reza Sadjadi, Haitao Wang, Jie Zhou, Tza-Jing Gung, Chunlei Zhang, Fernando M. Silveira
  • Publication number: 20190271082
    Abstract: Embodiments of the present disclosure relate to a showerhead assembly for use in a processing chamber. The showerhead assembly includes a porous insert disposed in a space defined between a gas distribution plate and a base plate to moderate the corrosive radicals resulting from plasma ignition to reduce particle issues and metal contamination in the chamber. The porous insert is a conductive material, such as metal, used to reduce the gap electrical field strength, or may be a dielectric material such as ceramic, polytetrafluoroethylene, polyamide-imide, or other materials with a low dielectric loss and high electrical field strength under conditions of high frequency and strong electric fields. As such, the electrical breakdown threshold is enhanced. The porous insert may reduce and/or eliminate showerhead backside plasma ignition and may include multiple concentric narrow rings that cover gas holes of the gas distribution plate.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Inventors: Haitao WANG, Hamid NOORBAKHSH, Chunlei ZHANG, Sergio Fukuda SHOJI, Kartik RAMASWAMY, Roland SMITH, Brad L. MAYS
  • Patent number: 10378108
    Abstract: Embodiments of the present disclosure relate to a showerhead assembly for use in a processing chamber. The showerhead assembly includes a porous insert disposed in a space defined between a gas distribution plate and a base plate to moderate the corrosive radicals resulting from plasma ignition to reduce particle issues and metal contamination in the chamber. The porous insert is a conductive material, such as metal, used to reduce the gap electrical field strength, or may be a dielectric material such as ceramic, polytetrafluoroethylene, polyamide-imide, or other materials with a low dielectric loss and high electrical field strength under conditions of high frequency and strong electric fields. As such, the electrical breakdown threshold is enhanced. The porous insert may reduce and/or eliminate showerhead backside plasma ignition and may include multiple concentric narrow rings that cover gas holes of the gas distribution plate.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: August 13, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Haitao Wang, Hamid Noorbakhsh, Chunlei Zhang, Sergio Fukuda Shoji, Kartik Ramaswamy, Roland Smith, Brad L. Mays
  • Publication number: 20190189481
    Abstract: A method and apparatus for de-chucking a workpiece is described that uses a swing voltage sequence. One example pertains to a method that includes applying a mechanical force from an electrostatic chuck against the back side of a workpiece that is electrostatically clamped to the chuck, applying a sequence of voltage pulses with a same polarity to the electrodes, each pulse of the sequence having a lower voltage than the preceding pulse, each pulse of the sequence having a lower voltage than the preceding pulse, and determining whether the workpiece is released from the chuck after the sequence of additional voltage pulses and if the workpiece is not released then repeating applying the sequence of voltage pulses.
    Type: Application
    Filed: February 6, 2019
    Publication date: June 20, 2019
    Inventors: Haitao Wang, Wonseok Lee, Sergio Fukuda Shoji, Chunlei Zhang, Kartik Ramaswamy
  • Patent number: 10242893
    Abstract: A method and apparatus for de-chucking a workpiece is described that uses a swing voltage sequence. One example pertains to a method that includes applying a mechanical force from an electrostatic chuck against the back side of a workpiece that is electrostatically clamped to the chuck, applying a sequence of voltage pulses with a same polarity to the electrodes, each pulse of the sequence having a lower voltage than the preceding pulse, each pulse of the sequence having a lower voltage than the preceding pulse, and determining whether the workpiece is released from the chuck after the sequence of additional voltage pulses and if the workpiece is not released then repeating applying the sequence of voltage pulses.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 26, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Haitao Wang, Wonseok Lee, Sergio Fukuda Shoji, Chunlei Zhang, Kartik Ramaswamy
  • Publication number: 20190043651
    Abstract: Network transformer structures including a production method therefore are disclosed. In one embodiment, multiple integrated I-shaped magnetic cores that include three winding barrel portions based on a new design for a magnetic core structure is disclosed. A first winding barrel portion and a second winding barrel portion are configured to wind a transformer winding, and a third winding barrel portion is configured to wind a common mode choke winding, so that a transformer and a common mode choke are combined onto one magnetic core to replace two previous magnetic cores, thereby saving on the overall network transformer structure cost as well as space on, for example, an end consumer printed circuit board.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 7, 2019
    Inventors: CHUNLEI ZHANG, Sheshe Zhao, Yonggang Wang
  • Publication number: 20190032050
    Abstract: The presently-disclosed subject matter relates to RNA-based composition and method to treat gastric cancer in a subject. More particularly, the presently disclosed subject matter relates to a RNA nanostructure and composition containing a multiple branched RNA nanoparticle, a gastric cancer targeting module, and an effective amount of a therapeutic agent. Further, the presently disclosed subject matter relates to a method of using the RNA nanoparticle composition to treat gastric cancer in a subject having or at risk of having gastric cancer.
    Type: Application
    Filed: March 9, 2016
    Publication date: January 31, 2019
    Inventors: Peixuan Guo, Daxiang Cui, Dan Shu, Yi Shu, Chunlei Zhang
  • Publication number: 20180366359
    Abstract: A method and apparatus for de-chucking a workpiece is described that uses a swing voltage sequence. One example pertains to a method that includes applying a mechanical force from an electrostatic chuck against the back side of a workpiece that is electrostatically clamped to the chuck, applying a sequence of voltage pulses with a same polarity to the electrodes, each pulse of the sequence having a lower voltage than the preceding pulse, each pulse of the sequence having a lower voltage than the preceding pulse, and determining whether the workpiece is released from the chuck after the sequence of additional voltage pulses and if the workpiece is not released then repeating applying the sequence of voltage pulses.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 20, 2018
    Inventors: Haitao Wang, Wonseok Lee, Sergio Fukuda Shoji, Chunlei Zhang, Kartik Ramaswamy
  • Publication number: 20180323042
    Abstract: The present disclosure generally relates to methods of and apparatuses for controlling a plasma sheath near a substrate edge. The apparatus includes an auxiliary electrode that may be positioned adjacent an electrostatic chuck. The auxiliary electrode is recursively fed from a power source using equal length and equal impedance feeds. The auxiliary electrode is vertically actuatable, and is tunable with respect to ground or other frequencies responsible for plasma generation. Methods of using the same are also provided.
    Type: Application
    Filed: April 19, 2018
    Publication date: November 8, 2018
    Inventors: Haitao WANG, Anwar HUSAIN, Kartik RAMASWAMY, Jason A. KENNEY, Jeffrey LUDWIG, Chunlei ZHANG, Wonseok LEE
  • Publication number: 20180308736
    Abstract: Embodiments include an electrostatic chuck assembly having an electrostatic chuck mounted on an insulator. The electrostatic chuck and insulator may be within a chamber volume of a process chamber. In an embodiment, a ground shield surrounds the electrostatic chuck and the insulator, and a gap between the ground shield and the electrostatic chuck provides an environment at risk for electric field emission. A dielectric filler can be placed within the gap to reduce a likelihood of electric field emission. The dielectric filler can have a flexible outer surface that covers or attaches to the electrostatic chuck, or an interface between the electrostatic chuck and the insulator Other embodiments are also described and claimed.
    Type: Application
    Filed: April 24, 2017
    Publication date: October 25, 2018
    Inventors: Kartik Ramaswamy, Anwar Husain, Haitao Wang, Evans Yip Lee, Jaeyong Cho, Hamid Noorbakhsh, Kenny L. Doan, Sergio Fukuda Shoji, Chunlei Zhang
  • Publication number: 20180061679
    Abstract: Methods and apparatus for a multi-chamber processing system having shared vacuum systems are disclosed herein. In some embodiments, a multi-chamber processing system for processing substrates includes a first process chamber; a second process chamber; a first vacuum system coupled to the first and second process chambers through first and second valves and to a first shared vacuum pump; and a second vacuum system coupled to the first and second process chambers through third and fourth valves and to a second shared vacuum pump, wherein the second vacuum system is fluidly independent from the first vacuum system.
    Type: Application
    Filed: August 23, 2017
    Publication date: March 1, 2018
    Inventors: Fernando M. SILVEIRA, Chunlei ZHANG, David ULLSTROM, Michael R. RICE
  • Publication number: 20170352568
    Abstract: An electrostatic chuck is described to carry a workpiece for processing such as high power plasma processing. In embodiments, the chuck includes a top plate to carry the workpiece, the top plate having an electrode to grip the workpiece, a cooling plate under the top plate to cool the top plate, a gas hole through the cooling plate and the top plate to feed a gas to the workpiece through the top plate, and an aperture-reducing plug in the cooling plate gas hole to conduct gas flow through the hole.
    Type: Application
    Filed: December 19, 2016
    Publication date: December 7, 2017
    Inventors: Jaeyong Cho, Haitao Wang, Vijay D. Parkhe, Kartik Ramaswamy, Chunlei Zhang
  • Publication number: 20170352566
    Abstract: A workpiece carrier suitable for high power processes is described. It may include a puck to carry the workpiece, a plate bonded to the puck by an adhesive, a mounting ring surrounding the puck and the cooling plate, and a gasket between the mounting ring and the plate, the gasket configured to protect the adhesive.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 7, 2017
    Inventors: Kartik Ramaswamy, Chunlei Zhang, Haitao Wang, Vijay D. Parkhe, Jaeyong Cho
  • Publication number: 20170352565
    Abstract: A workpiece carrier suitable for high power processes is described. It may include a top plate to support a workpiece, a lift pin to lift a workpiece from a top plate, a lift pin hole through the top plate to contain the lift pin, and a connector to the lift pin hole to connect to a source of gas under pressure to deliver a cooling gas, for example helium, to the back side of the workpiece.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 7, 2017
    Inventors: Chunlei Zhang, Haitao Wang, Kartik Ramaswamy, Vijay D. Parkhe, Jaeyong Cho