Patents by Inventor Ce Ma

Ce Ma 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: 11962176
    Abstract: Example devices are described. One example device includes a battery. The battery includes a battery charging port, a battery discharging port, a battery negative port, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port and the battery discharging port are ports independent of each other. The battery charging port is connected to a first electrode of the electrochemical cell, and a second electrode of the electrochemical cell is connected to a first end of the control switch, and a second end of the control switch is connected to the battery negative port. The protection integrated circuit is connected in parallel to electrodes of the electrochemical cell, and the protection integrated circuit is further connected to a third end of the control switch. The battery discharging port is connected to the first electrode of the electrochemical cell.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: April 16, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xinyu Liu, Pinghua Wang, Ce Liu, Yanding Liu, Jinbo Ma
  • Publication number: 20240092628
    Abstract: A micro-nano channel structure, a method for manufacturing the micro-nano channel structure, a sensor, a method for manufacturing the sensor, and a microfluidic device are provided. The micro-nano channel structure includes: a base substrate; a base layer, on the base substrate and including a plurality of protrusions; a channel wall layer, on a side of the plurality of the protrusions away from the base substrate, the channel wall layer has a micro-nano channel; a recessed portion is provided between adjacent protrusions of the plurality of the protrusions, an orthographic projection of the micro-nano channel on the base substrate is located within an orthographic projection of the recessed portion on the base substrate. The micro-nano channels have a high resolution or an ultra-high resolution, and have different sizes and shapes.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 21, 2024
    Inventors: Xiaochen MA, Guangcai YUAN, Ce NING, Xin GU, Xiao ZHANG, Chao LI
  • Patent number: 11796134
    Abstract: A method for inhibiting the formation of carbonyl compounds in a gas cylinder containing carbon monoxide wherein the gas cylinder is in fluid communication with a valve assembly wherein the valve assembly connects to a threaded opening in the gas cylinder by a threaded assembly by coating interior and exterior components of the valve assembly selected from the group consisting of an inlet port, an outlet port, a diaphragm and a lower spindle with an amorphous hydrogenated silicon compound. A valve assembly containing the coated interior and exterior components is also disclosed.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 24, 2023
    Assignee: Linde GmbH
    Inventors: Paul Mittonette, David Milner, Ce Ma
  • Publication number: 20230183068
    Abstract: Novel methods for pretreating a rare-gas-containing stream exiting an etch chamber followed by recovering the rare gas from the pre-treated, rare-gas containing stream are disclosed. More particularly, the invention relates to the pretreatment and recovery of a rare gas, such as xenon or krypton, from a nitrogen-based exhaust stream with specific gaseous impurities generated during an etch process that is performed as part of a semiconductor fabrication process.
    Type: Application
    Filed: February 7, 2023
    Publication date: June 15, 2023
    Inventors: Jennifer Bugayong Luna, Atul M. Athalye, Ce Ma, Ashwini K. Sinha
  • Patent number: 11603313
    Abstract: Novel methods for pretreating a rare-gas-containing stream exiting an etch chamber followed by recovering the rare gas from the pre-treated, rare-gas containing stream are disclosed. More particularly, the invention relates to the pretreatment and recovery of a rare gas, such as xenon or krypton, from a nitrogen-based exhaust stream with specific gaseous impurities generated during an etch process that is performed as part of a semiconductor fabrication process.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: March 14, 2023
    Assignee: Praxair Technology, Inc.
    Inventors: Jennifer Bugayong Luna, Atul M. Athalye, Ce Ma, Ashwini K. Sinha
  • Publication number: 20230044406
    Abstract: Methods for selectively etching SiGe relative to Si are provided. Some of the methods incorporate formation of a passivation layer on a surface of the Si layer to enhance SiGe etchant selectivity and the use of interhalogen gases that preferentially etch the SiGe as opposed to the Si in the presence of the passivation layer. The methods can occur in a cyclic manner until the desired thickness of the SiGe layer is obtained.
    Type: Application
    Filed: April 7, 2021
    Publication date: February 9, 2023
    Inventors: Ashwini K. SINHA, Ce MA, Aaron REINICKER, Atul M. ATHALYE
  • Publication number: 20220363540
    Abstract: Novel methods for pretreating a rare-gas-containing stream exiting an etch chamber followed by recovering the rare gas from the pre-treated, rare-gas containing stream are disclosed. More particularly, the invention relates to the pretreatment and recovery of a rare gas, such as xenon or krypton, from a nitrogen-based exhaust stream with specific gaseous impurities generated during an etch process that is performed as part of a semiconductor fabrication process.
    Type: Application
    Filed: December 16, 2021
    Publication date: November 17, 2022
    Inventors: Jennifer Bugayong Luna, Atul M. Athalye, Ce Ma, Ashwini K. Sinha
  • Publication number: 20220332579
    Abstract: Systems and processes for gas phase-phase synthesis of trisilylamine. One system includes a reactor vessel having a top, bottom, and sidewall having an inner surface. The reactor vessel includes inlets for gaseous reactants, and a gas inlet for an inert gas. In certain reactors the gas inlets are positioned near the top of the reactor vessel and configured to inject the reactant gases in the reactor substantially vertically and downward therefrom. Other reactors are cyclonic-shaped with tangential feeding of the gases. One or more baffles having a peripheral edge and substantially horizontally positioned in the reactor to define a reaction zone above the baffles and a separation zone below the baffles. The baffles are positioned in the reactor vessel such that there is a gap between the baffle peripheral edge and the inner surface of the reactor vessel. Certain systems and processes include mechanical or static mixers.
    Type: Application
    Filed: October 22, 2019
    Publication date: October 20, 2022
    Inventors: CE MA, ATUL ATHALYE, CARL JACKSON, KUOCHOU YEH, WEN CHE KUO, YING CHIEH HU
  • Publication number: 20210262619
    Abstract: A method for inhibiting the formation of carbonyl compounds in a gas cylinder containing carbon monoxide wherein the gas cylinder is in fluid communication with a valve assembly wherein the valve assembly connects to a threaded opening in the gas cylinder by a threaded assembly by coating interior and exterior components of the valve assembly selected from the group consisting of an inlet port, an outlet port, a diaphragm and a lower spindle with an amorphous hydrogenated silicon compound. A valve assembly containing the coated interior and exterior components is also disclosed.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 26, 2021
    Inventors: Paul Mittonette, David Milner, Ce Ma
  • Publication number: 20150211126
    Abstract: Systems and methods for the precise control of the delivery of solution-based precursors for use in ALD processes. By using direct liquid injection of the precursor solution to a local vaporizer, the vaporization of the solution-based precursors and delivery of the vaporized precursor can be precisely controlled in order to achieve true ALD film growth with a conversional ALD tool.
    Type: Application
    Filed: September 5, 2013
    Publication date: July 30, 2015
    Inventor: Ce Ma
  • Patent number: 8710253
    Abstract: Solution-based precursors for use as starting materials in film deposition processes, such as atomic layer deposition, chemical vapor deposition and metalorganic chemical vapor deposition. The solution-based precursors allow for the use of otherwise solid precursors that would be unsuitable for vapor phase deposition processes because of their tendency to decompose and solidify during vaporization.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: April 29, 2014
    Assignee: Linde Aktiengesellschaft
    Inventors: Ce Ma, Kee-Chan Kim, Graham Anthony McFarlane
  • Publication number: 20130125788
    Abstract: The present invention relates to the use of low-volatility compounds in forming deposited layers and to methods for accomplishing such deposition. Particular applicability is in the field of depositing layers for semiconductor devices. A solution made up of low vapor pressure solutes (source materials) and solvents, wherein the solvents have a vapor pressure several orders of magnitude lower than that of the solute is described. The solutions are introduced to a vaporization apparatus configured to enable rapid and efficient vaporization of the solute with minimum evaporation of solvent and minimum decomposition of solute.
    Type: Application
    Filed: January 11, 2013
    Publication date: May 23, 2013
    Inventors: Kenneth AITCHISON, Atul ATHALYE, Ce MA
  • Publication number: 20120295038
    Abstract: A unique combination of solution stabilization and delivery technologies with special ALD operation is provided. A wide range of low volatility solid ALD precursors dissolved in solvents are used. Unstable solutes may be stabilized in solution and all of the solutions may be delivered at room temperature. After the solutions are vaporized, the vapor phase precursors and solvents are pulsed into a deposition chamber to assure true ALD film growth.
    Type: Application
    Filed: November 17, 2011
    Publication date: November 22, 2012
    Inventors: Ce Ma, Qing Min Wang, Patrick J. Helly, Richard Hogle
  • Publication number: 20120294753
    Abstract: A unique combination of solution stabilization and delivery technologies with special ALD operation is provided. A wide range of low volatility solid ALD precursors dissolved in solvents are used. Unstable solutes may be stabilized in solution and all of the solutions may be delivered at room temperature. After the solutions are vaporized, the vapor phase precursors and solvents are pulsed into a deposition chamber to assure true ALD film growth.
    Type: Application
    Filed: November 17, 2011
    Publication date: November 22, 2012
    Inventors: Ce MA, Qing Min WANG, Patrick J. HELLY, Richard HOGLE
  • Patent number: 8261908
    Abstract: Precursor source containers to hold precursor materials used in thin film deposition processes, such as ALD and MOCVD methods are described. In particular, the container holds both a liquid precursor or a dissolved precursor solution and a rinse solvent in separate chambers, and reduces the overall space requirement. In one embodiment, a cylinder within a cylinder arrangement provides two separate chambers, one for the precursor solution and the other for the rinse solvent.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: September 11, 2012
    Assignee: Linde Aktiengesellschaft
    Inventor: Ce Ma
  • Publication number: 20120178953
    Abstract: Solution-based precursors for use as starting materials in film deposition processes, such as atomic layer deposition, chemical vapor deposition and metalorganic chemical vapor deposition. The solution-based precursors allow for the use of otherwise solid precursors that would be unsuitable for vapor phase deposition processes because of their tendency to decompose and solidify during vaporization.
    Type: Application
    Filed: July 1, 2010
    Publication date: July 12, 2012
    Inventors: Ce Ma, Kee-Chan Kim, Graham Anthony McFarlane
  • Patent number: 7947581
    Abstract: Processes for forming full graphene wafers on silicon or silicon-on-insulator substrates. The processes comprise formation of a metal carbide layer on the substrate and annealing of the metal carbide layer under high vacuum. For volatile metals, this annealing step results in volatilization of the metal species of the metal carbide layer and reformation of the carbon atoms into the desired graphene wafer. Alternatively, for non-volatile metals, the annealing step results in migration of the metal in the metal carbide layer to the top surface of the layer, thereby forming a metal rich top layer. The desired graphene layer is formed by the carbon atoms left at the interface with the metal rich top layer. The thickness of the graphene layer is controlled by the thickness of the metal carbide layer and by solid phase reactions.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: May 24, 2011
    Assignee: Linde Aktiengesellschaft
    Inventor: Ce Ma
  • Publication number: 20110048283
    Abstract: The present invention relates to the use of low-volatility compounds in forming deposited layers and to methods for accomplishing such deposition. Particular applicability is in the field of depositing layers for semiconductor devices. A solution made up of low vapor pressure solutes (source materials) and solvents, wherein the solvents have a vapor pressure several orders of magnitude lower than that of the solute is described. The solutions are introduced to a vaporization apparatus configured to enable rapid and efficient vaporization of the solute with minimum evaporation of solvent and minimum decomposition of solute.
    Type: Application
    Filed: July 15, 2008
    Publication date: March 3, 2011
    Inventors: Kenneth Aitchison, Atul Athalye, Ce Ma
  • Publication number: 20110034011
    Abstract: Processes for forming full graphene wafers on silicon or silicon-on-insulator substrates. The processes comprise formation of a metal carbide layer on the substrate and annealing of the metal carbide layer under high vacuum. For volatile metals, this annealing step results in volatilization of the metal species of the metal carbide layer and reformation of the carbon atoms into the desired graphene wafer. Alternatively, for non-volatile metals, the annealing step results in migration of the metal in the metal carbide layer to the top surface of the layer, thereby forming a metal rich top layer. The desired graphene layer is formed by the carbon atoms left at the interface with the metal rich top layer. The thickness of the graphene layer is controlled by the thickness of the metal carbide layer and by solid phase reactions.
    Type: Application
    Filed: August 10, 2009
    Publication date: February 10, 2011
    Inventor: Ce MA
  • Publication number: 20100290945
    Abstract: Oxygen free, solution based zirconium precursors for use in ALD processes are disclosed for growing ZrO2 or other Zr compound films in a self-limiting and conformal manner. An oxygen free, solution based ALD precursor of (t-BuCp)2ZrMC2 is particular useful for depositing ZrO2 or other Zr compound films.
    Type: Application
    Filed: May 13, 2009
    Publication date: November 18, 2010
    Inventors: Ce MA, Kee-Chan Kim, Graham Anthony McFarlane