Patents by Inventor Bo Gong

Bo Gong 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: 10325773
    Abstract: Disclosed are methods and systems for providing silicon carbide films. A layer of silicon carbide can be provided under process conditions that employ one or more silicon-containing precursors that have one or more silicon-hydrogen bonds and/or silicon-silicon bonds. The silicon-containing precursors may also have one or more silicon-oxygen bonds and/or silicon-carbon bonds. One or more radical species in a substantially low energy state can react with the silicon-containing precursors to form the silicon carbide film. The one or more radical species can be formed in a remote plasma source.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: June 18, 2019
    Assignee: Novellus Systems, Inc.
    Inventors: Bhadri N. Varadarajan, Bo Gong, Zhe Gui
  • Patent number: 10319582
    Abstract: Thin layer of silicon oxide is deposited on a substrate having an exposed layer of metal (e.g., W, Cu, Ti, Co, Ta) without causing substantial oxidation of the metal. The method involves: (a) contacting the substrate having an exposed metal layer with a silicon-containing precursor and adsorbing the precursor on the substrate; (b) removing the unadsorbed precursor from a process chamber; and (c) contacting the adsorbed precursor with a plasma formed in a process gas comprising an oxygen source (e.g., O2, CO2, N2O, O3) and H2, to form silicon oxide from the silicon-containing precursor while suppressing metal oxidation. These steps can be repeated until a silicon oxide film of a desired thickness is formed. In some embodiments, the silicon oxide film is used to improve nucleation of subsequently deposited silicon carbide.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: June 11, 2019
    Assignee: Lam Research Corporation
    Inventors: Bhadri N. Varadarajan, Zhe Gui, Bo Gong, Andrew John McKerrow
  • Patent number: 10297442
    Abstract: Provided are methods and apparatuses for depositing a graded or multi-layered silicon carbide film using remote plasma. A graded or multi-layered silicon carbide film can be formed under process conditions that provide one or more organosilicon precursors onto a substrate in a reaction chamber. Radicals of source gas in a substantially low energy state, such as radicals of hydrogen in the ground state, are provided from a remote plasma source into reaction chamber. In addition, co-reactant gas is flowed towards the reaction chamber. In some implementations, radicals of the co-reactant gas are provided from the remote plasma source into the reaction chamber. A flow rate of the co-reactant gas can be changed over time, incrementally or gradually, to form a multi-layered silicon carbide film or a graded silicon carbide film having a composition gradient from a first surface to a second surface of the graded silicon carbide film.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: May 21, 2019
    Assignee: Lam Research Corporation
    Inventors: Bhadri N. Varadarajan, Bo Gong, Guangbi Yuan, Zhe Gui, Fengyuan Lai
  • Publication number: 20180347035
    Abstract: A doped or undoped silicon carbide film can be deposited using a remote plasma chemical vapor deposition (CVD) technique. One or more silicon-containing precursors are provided to a reaction chamber. Radical species, such as hydrogen radical species, are provided in a substantially low energy state or ground state and interact with the one or more silicon-containing precursors to deposit the silicon carbide film. A co-reactant may be flowed with the one or more silicon-containing precursors, where the co-reactant can be a depositing additive or a non-depositing additive to increase step coverage of the silicon carbide film.
    Type: Application
    Filed: July 24, 2018
    Publication date: December 6, 2018
    Inventors: Matthew Scott Weimer, Bhadri N. Varadarajan, Bo Gong, Zhe Gui
  • Publication number: 20180330945
    Abstract: A doped or undoped silicon carbide film can be deposited using a remote plasma chemical vapor deposition (CVD) technique. One or more silicon-containing precursors are provided to a reaction chamber. Radical species, such as hydrogen radical species, are provided in a substantially low energy state or ground state and interact with the one or more silicon-containing precursors to deposit the silicon carbide film. A co-reactant may be flowed with the one or more silicon-containing precursors, where the co-reactant is a carbon-containing precursor and each silicon-containing precursor is a silane-based precursor with at least a silicon atom having two or more hydrogen atoms bonded to the silicon atom.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Inventors: Bhadri N. Varadarajan, Matthew Scott Weimer, Galbokka Hewage Layan Savithra, Bo Gong, Zhe Gui
  • Publication number: 20180315597
    Abstract: Thin layer of silicon oxide is deposited on a substrate having an exposed layer of metal (e.g., W, Cu, Ti, Co, Ta) without causing substantial oxidation of the metal. The method involves: (a) contacting the substrate having an exposed metal layer with a silicon-containing precursor and adsorbing the precursor on the substrate; (b) removing the unadsorbed precursor from a process chamber; and (c) contacting the adsorbed precursor with a plasma formed in a process gas comprising an oxygen source (e.g., O2, CO2, N2O, O3) and H2, to form silicon oxide from the silicon-containing precursor while suppressing metal oxidation. These steps can be repeated until a silicon oxide film of a desired thickness is formed. In some embodiments, the silicon oxide film is used to improve nucleation of subsequently deposited silicon carbide.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 1, 2018
    Inventors: Bhadri N. Varadarajan, Zhe Gui, Bo Gong, Andrew John McKerrow
  • Publication number: 20180240664
    Abstract: Provided are methods and apparatuses for depositing a graded or multi-layered silicon carbide film using remote plasma. A graded or multi-layered silicon carbide film can be formed under process conditions that provide one or more organosilicon precursors onto a substrate in a reaction chamber. Radicals of source gas in a substantially low energy state, such as radicals of hydrogen in the ground state, are provided from a remote plasma source into reaction chamber. In addition, co-reactant gas is flowed towards the reaction chamber. In some implementations, radicals of the co-reactant gas are provided from the remote plasma source into the reaction chamber. A flow rate of the co-reactant gas can be changed over time, incrementally or gradually, to form a multi-layered silicon carbide film or a graded silicon carbide film having a composition gradient from a first surface to a second surface of the graded silicon carbide film.
    Type: Application
    Filed: September 30, 2016
    Publication date: August 23, 2018
    Inventors: Bhadri N. Varadarajan, Bo Gong, Guangbi Yuan, Zhe Gui, Fengyuan Lai
  • Publication number: 20180163305
    Abstract: A substrate processing system includes a first chamber including a substrate support. A showerhead is arranged above the first chamber and is configured to filter ions and deliver radicals from a plasma source to the first chamber. The showerhead includes a heat transfer fluid plenum including an inlet to receive heat transfer fluid and a plurality of flow channels to direct the heat transfer fluid through a center portion of the showerhead to an outlet to control a temperature of the showerhead, a secondary gas plenum including an inlet to receive secondary gas and a plurality of secondary gas injectors to inject the secondary gas into the first chamber, and a plurality of through holes passing through the showerhead. The through holes are not in fluid communication with the heat transfer fluid plenum or the secondary gas plenum.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 14, 2018
    Inventors: Rachel Batzer, Huatan Qiu, Bhadri Varadarajan, Patrick Girard Breiling, Bo Gong, Will Schlosser, Zhe Gui, Taide Tan, Geoffrey Hohn
  • Publication number: 20180096842
    Abstract: Provided are methods and apparatuses for depositing a graded or multi-layered silicon carbide film using remote plasma. A graded or multi-layered silicon carbide film can be formed under process conditions that provide one or more organosilicon precursors onto a substrate in a reaction chamber. Radicals of source gas in a substantially low energy state, such as radicals of hydrogen in the ground state, are provided from a remote plasma source into reaction chamber. In addition, co-reactant gas is flowed towards the reaction chamber. In some implementations, radicals of the co-reactant gas are provided from the remote plasma source into the reaction chamber. A flow rate of the co-reactant gas can be changed over time, incrementally or gradually, to form a multi-layered silicon carbide film or a graded silicon carbide film having a composition gradient from a first surface to a second surface of the graded silicon carbide film.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 5, 2018
    Inventors: Bhadri N. Varadarajan, Bo Gong, Guangbi Yuan, Zhe Gui, Fengyuan Lai
  • Publication number: 20180044791
    Abstract: Certain embodiments herein relate to an apparatus used for remote plasma processing. In various embodiments, the apparatus includes a reaction chamber that is conditioned by forming a low recombination material coating on interior chamber surfaces. The low recombination material helps minimize the degree of radical recombination that occurs when the reaction chamber is used to process substrates. During processing on substrates, the low recombination material may become covered by relatively higher recombination material (e.g., as a byproduct of the substrate processing), which results in a decrease in the amount of radicals available to process the substrate over time. The low recombination material coating may be reconditioned through exposure to an oxidizing plasma, which acts to reform the low recombination material coating. The reconditioning process may occur periodically as additional processing occurs on substrates.
    Type: Application
    Filed: October 26, 2017
    Publication date: February 15, 2018
    Inventors: Bhadri N. Varadarajan, Bo Gong, Rachel E. Batzer, Huatan Qiu, Bart J. van Schravendijk, Geoffrey Hohn
  • Patent number: 9837270
    Abstract: Provided are methods and apparatuses for densifying a silicon carbide film using remote plasma treatment. Operations of remote plasma deposition and remote plasma treatment of the silicon carbide film alternatingly occur to control film density. A first thickness of silicon carbide film is deposited followed by a remote plasma treatment, and then a second thickness of silicon carbide film is deposited followed by another remote plasma treatment. The remote plasma treatment can flow radicals of source gas in a substantially low energy state, such as radicals of hydrogen in a ground state, towards silicon carbide film deposited on a substrate. The radicals of source gas in the substantially low energy state promote cross-linking and film densification in the silicon carbide film.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 5, 2017
    Assignee: Lam Research Corporation
    Inventors: Bhadri N. Varadarajan, Bo Gong, Guangbi Yuan, Zhe Gui, Fengyuan Lai
  • Patent number: 9828672
    Abstract: Methods and apparatus for remote plasma processing are provided. In various embodiments, a reaction chamber is conditioned by forming a low recombination material coating on interior chamber surfaces. The low recombination material helps minimize the degree of radical recombination that occurs within the reaction chamber when the reaction chamber is used to process substrates. During processing on substrates, the low recombination material may become covered by relatively higher recombination material (e.g., as a byproduct of the substrate processing), which results in a decrease in the amount of radicals available to process the substrate over time. The low recombination material coating may be reconditioned through exposure to an oxidizing plasma, which acts to reform the low recombination material coating. The reconditioning process may occur periodically as additional processing occurs on substrates.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: November 28, 2017
    Assignee: Lam Research Corporation
    Inventors: Bhadri N. Varadarajan, Bo Gong, Rachel E. Batzer, Huatan Qiu, Bart J. van Schravendijk, Geoffrey Hohn
  • Publication number: 20170177650
    Abstract: A request is received at a virtual service simulating a particular data service. The request includes a uniform resource locator (URL) that includes a service root portion and a resource path portion identifying a particular resource of a data structure. Syntax of at least the resource path portion is verified based on a particular protocol. Consistency of the resource path portion with a structure of a data model corresponding to the particular data service is also verified. A query of a database is performed based on contents of at least the resource path portion and a simulated response of the particular data service to the request is generated using results of the query.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: John Devine, Anita Punreddy, Alex C. Arthur, Wing Li, Bo Gong
  • Publication number: 20160281230
    Abstract: Certain embodiments herein relate to methods of conditioning a reaction chamber that is used for remote plasma processing. Other embodiments herein relate to apparatus used for remote plasma processing. In various embodiments, a reaction chamber is conditioned by forming a low recombination material coating on interior chamber surfaces. The low recombination material helps minimize the degree of radical recombination that occurs within the reaction chamber when the reaction chamber is used to process substrates. During processing on substrates, the low recombination material may become covered by relatively higher recombination material (e.g., as a byproduct of the substrate processing), which results in a decrease in the amount of radicals available to process the substrate over time. The low recombination material coating may be reconditioned through exposure to an oxidizing plasma, which acts to reform the low recombination material coating.
    Type: Application
    Filed: May 14, 2015
    Publication date: September 29, 2016
    Inventors: Bhadri N. Varadarajan, Bo Gong, Rachel E. Batzer, Huatan Qiu, Bart J. van Schravendijk, Geoffrey Hohn
  • Publication number: 20160276140
    Abstract: A thin layer of a silicon-carbon-containing film is deposited on a substrate by generating hydrogen radicals from hydrogen gas supplied to a radicals generation chamber, supplying the hydrogen radicals to a substrate processing chamber separate from the substrate processing chamber via a multiport gas distributor, and reacting the hydrogen radicals therein with an organosilicon reactant introduced into the substrate processing chamber concurrently. The hydrogen radicals are allowed to relax into a ground state in a radicals relaxation zone within the substrate processing chamber before reacting with the organosilicon reactant.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 22, 2016
    Inventors: Bhadri N. Varadarajan, Bo Gong
  • Patent number: 9371579
    Abstract: A thin layer of a silicon-carbon-containing film is deposited on a substrate by generating hydrogen radicals from hydrogen gas supplied to a radicals generation chamber, supplying the hydrogen radicals to a substrate processing chamber separate from the substrate processing chamber via a multiport gas distributor, and reacting the hydrogen radicals therein with an organosilicon reactant introduced into the substrate processing chamber concurrently. The hydrogen radicals are allowed to relax into a ground state in a radicals relaxation zone within the substrate processing chamber before reacting with the organosilicon reactant.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: June 21, 2016
    Assignee: Lam Research Corporation
    Inventors: Bhadri N. Varadarajan, Bo Gong
  • Publication number: 20150303056
    Abstract: Disclosed are methods and systems for providing silicon carbide films. A layer of silicon carbide can be provided under process conditions that employ one or more silicon-containing precursors that have one or more silicon-hydrogen bonds and/or silicon-silicon bonds. The silicon-containing precursors may also have one or more silicon-oxygen bonds and/or silicon-carbon bonds. One or more radical species in a substantially low energy state can react with the silicon-containing precursors to form the silicon carbide film. The one or more radical species can be formed in a remote plasma source.
    Type: Application
    Filed: February 6, 2015
    Publication date: October 22, 2015
    Inventors: Bhadri N. Varadarajan, Bo Gong, Zhe Gui
  • Publication number: 20150118394
    Abstract: A thin layer of a silicon-carbon-containing film is deposited on a substrate by generating hydrogen radicals from hydrogen gas supplied to a radicals generation chamber, supplying the hydrogen radicals to a substrate processing chamber separate from the substrate processing chamber via a multiport gas distributor, and reacting the hydrogen radicals therein with an organosilicon reactant introduced into the substrate processing chamber concurrently. The hydrogen radicals are allowed to relax into a ground state in a radicals relaxation zone within the substrate processing chamber before reacting with the organosilicon reactant.
    Type: Application
    Filed: October 24, 2013
    Publication date: April 30, 2015
    Inventors: Bhadri N Varadarajan, Bo Gong
  • Patent number: 8638028
    Abstract: A conduction structure includes a cooling plate and conductive members. A circuit board and a lamp panel are fixed at two sides of the heat cooling plate. The circuit board forms conductive areas. The cooling plate forms conductive areas and first holes with conductive inner faces. The lamp plate defines second holes. The lamp plate forms conductive areas around the second holes on the side away from the heat cooling plate. The conductive areas of the cooling plate contact with the corresponding conductive areas of the circuit board. Each conductive member includes a head and a rod. The rod engages in a corresponding first hole and a corresponding second hole in a transitional fit manner. The head electrically contacts the conductive area of the lamp plate. An LED illumination device using the same conduction structure is also provided.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: January 28, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yue-Hong Zhang, Wen-Hsiang Lu, Huai-Shan Gu, Fu-Bo Gong, Ting Dong
  • Patent number: 8388172
    Abstract: An LED lamp includes a cylindrical tube and two lamp holders fixed on two ends of the cylindrical tube. The cylindrical tube comprises a lampshade, a lamp plate, and a heat dispersing plate. The heat dispersing plate further comprises a base portion and two fastening portions. Two free edges of the base portion comprise two supports extending toward each other. The fastening portions are connected to the supports correspondingly, and the lamp shape and the lamp plate are fixed to the fastening portions correspondingly. Two lamp holders are fixed to opposite ends of the cylindrical tube, and each of the lamp holders comprises a hollow shell and a protrusion formed on an inner wall of the hollow shell. The protrusion resists against one end of the supports to prevent the lampshade from rotating relative to the heat dispersing plate.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: March 5, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Jun Yue, Huai-Shan Gu, Ting Dong, Fu-Bo Gong