Patents by Inventor Jianping Zhao

Jianping Zhao 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: 20250095983
    Abstract: A film growth apparatus (e.g., a nitridation apparatus) includes a processing chamber, a substrate holder disposed in the processing chamber, an energy source coupled to the processing chamber, and one or more gas inlets fluidically coupled to the processing chamber. The substrate holder is configured to support a substrate (e.g., a silicon substrate) maintained at a temperature less than about 400° C. The energy source is configured to treat an unreactive surface of the substrate in the processing chamber to convert the unreactive surface to a reactive surface by exposing the unreactive surface to an energy flux. The one or more gas inlets are configured to convert (e.g., nitridate) the reactive surface using a gas (e.g., nitrogen-based gas) without generating plasma by converting the reactive surface to a film (e.g., a nitride layer) comprising a subsequent unreactive surface.
    Type: Application
    Filed: December 2, 2024
    Publication date: March 20, 2025
    Inventors: Jianping Zhao, Peter Lowell George Ventzek, Toshihiko Iwao
  • Patent number: 12176204
    Abstract: A method of nitridation includes cyclically performing the following steps in situ within a processing chamber at a temperature less than about 400° C.: directing an energy flux to a localized region of an unreactive surface of a substrate to convert the localized region of the unreactive surface to a localized reactive region: and selectively nitridating the localized reactive region using a nitrogen-based gas to convert the localized reactive region to a nitride layer.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: December 24, 2024
    Assignee: Tokyo Electron Limited
    Inventors: Jianping Zhao, Peter Lowell George Ventzek, Toshihiko Iwao
  • Publication number: 20240418549
    Abstract: The present invention provides a fluid measurement apparatus, including a pressure sensing element and a data processing element. The pressure sensing element is disposed in direct contact with a measured fluid, the pressure sensing element is a sealed element, and includes a first surface and a second surface that are disposed opposite to each other, the measured fluid directly impacts the first surface and the second surface, and pressure values generated when the first surface and the second surface are impacted by the measured fluid are detected. The data processing element is connected to the pressure sensing element, and a flow velocity and/or a flow rate of the measured fluid are/is calculated by using the pressure value detected by the pressure sensing element. The present invention resolves a problem that the fluid measurement apparatus cannot operate normally due to clogging of a pressure tap hole.
    Type: Application
    Filed: September 2, 2024
    Publication date: December 19, 2024
    Inventors: ZhongHui Wang, JiHui Li, Qing Lan, KeLong Zhang, LiZhuang Tang, Xiao Cai, Chao Wang, Bo Yao, Xiu Yang, JinMing Li, JianPing Zhao
  • Publication number: 20240321552
    Abstract: A matching circuit for a plasma tool including an impedance matching network configured to be coupled between a power supply and a plasma chamber, the plasma chamber being configured to operate a plasma in a predetermined frequency range, the power supply being configured to provide power for the plasma chamber, the impedance matching network including a first pi-network and a second pi-network in series coupled between an input of the plasma chamber and an output of the power supply, and the impedance matching network being configured such that, during operation of the plasma chamber in the predetermined frequency range, an impedance of the impedance matching network and the plasma chamber equals an impedance of the power supply.
    Type: Application
    Filed: March 21, 2023
    Publication date: September 26, 2024
    Inventors: John Carroll, Jianping Zhao
  • Publication number: 20240312766
    Abstract: A plasma system includes a plasma apparatus comprising a plasma chamber and a substrate support disposed in the plasma chamber. The system includes an electromagnetic (EM) circuit block coupled to a radio frequency (RF) electrode. The EM circuit block includes a broadband RF waveform function generator, the broadband RF waveform having EM power distributed over a range of frequencies, and a broadband impedance matching network having an input coupled to an output of the broadband RF waveform function generator and an output coupled to a terminal of the RF electrode, an operating frequency range of the broadband impedance matching network including the range of frequencies. The system includes a controller programmed to adjust an input parameter of the EM circuit block.
    Type: Application
    Filed: May 22, 2024
    Publication date: September 19, 2024
    Inventors: Jianping Zhao, John Carroll, Charles Schlechte, Peter Lowell George Ventzek
  • Patent number: 12020902
    Abstract: A plasma system includes a plasma apparatus including: a plasma chamber; a pedestal configured to hold a substrate in the chamber; and a radio frequency (RF) electrode configured to excite plasma in the chamber; an electromagnetic (EM) circuit block coupled to the RF electrode, the EM circuit block including: a function generator configured to output a broadband RF waveform, the waveform having EM power distributed over a range of frequencies; a broadband amplifier coupled to an output of the function generator, an operating frequency range of the amplifier including the range of frequencies; and a broadband impedance matching network having an input coupled to an output of the broadband amplifier and an output coupled to a terminal of the RF electrode, an operating frequency range of the broadband impedance matching network including the range of frequencies; and a controller configured to adjust an input parameter of the EM circuit block.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: June 25, 2024
    Assignee: Tokyo Electron Limited
    Inventors: Jianping Zhao, John Carroll, Charles Schlechte, Peter Lowell George Ventzek
  • Publication number: 20240203706
    Abstract: A method of processing a substrate that includes: in a plasma processing chamber, performing an atomic layer deposition (ALD) process including cycles of deposition while maintaining a temperature of a substrate support between 25° C. and 450° C., one of the cycles including exposing the substrate loaded in a plasma processing chamber to a first precursor to modify a surface of the substrate with the first precursor, after exposing the substrate, purging the plasma processing chamber with an inert gas, exposing the modified surface of the substrate to a first plasma generated from the inert gas, and flowing a second precursor into the plasma processing chamber, after exposing to the first plasma, to form a conformal layer from the modified surface.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 20, 2024
    Inventors: Jianping Zhao, Toshihiko Iwao, Peter Lowell George Ventzek
  • Publication number: 20240170256
    Abstract: According to an embodiment, an apparatus for a plasma processing system is provided. The apparatus includes a conductive conical frustum having an open top base, an open bottom base, and a surface area coupling the open top base to the open bottom base. A conductive cylinder is positioned within the conductive conical frustum with a closed bottom base and an open top base. The open top base of the conductive cylinder is connected to sidewalls of the open top base of the conductive conical frustum. The conductive cylinder has a height shorter than the height of the conductive conical frustum. The apparatus is configured to provide a broadband RF transition from a matching network to a resonating structure of the plasma processing system for frequencies ranging between 13 megahertz (MHz) and 220 MHz.
    Type: Application
    Filed: November 22, 2022
    Publication date: May 23, 2024
    Inventors: John Carroll, Jianping Zhao
  • Patent number: 11925889
    Abstract: A spliceable and foldable filter element device is provided, which includes a quadrilateral filter element body made of a flexible material. The quadrilateral filter element body is a folding layer having vertical folds. A left frame body and a right frame body are respectively disposed on a left side and a right side of the quadrilateral filter element body, at least one clamping rod is arranged between the left frame body and the right frame body, the clamping rod comprises three or more clamping teeth, the clamping teeth correspond to the folding layer in position, and the clamping rod is clamped with the folding layer through the clamping teeth. The spliceable and foldable filter element device has the advantages of simple structure, low cost, foldability, flexible use, convenience, easy storage and transportation.
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: March 12, 2024
    Inventor: Jianping Zhao
  • Publication number: 20240021410
    Abstract: A plasma system includes a plasma apparatus including: a plasma chamber; a pedestal configured to hold a substrate in the chamber; and a radio frequency (RF) electrode configured to excite plasma in the chamber; an electromagnetic (EM) circuit block coupled to the RF electrode, the EM circuit block including: a function generator configured to output a broadband RF waveform, the waveform having EM power distributed over a range of frequencies; a broadband amplifier coupled to an output of the function generator, an operating frequency range of the amplifier including the range of frequencies; and a broadband impedance matching network having an input coupled to an output of the broadband amplifier and an output coupled to a terminal of the RF electrode, an operating frequency range of the broadband impedance matching network including the range of frequencies; and a controller configured to adjust an input parameter of the EM circuit block.
    Type: Application
    Filed: July 14, 2022
    Publication date: January 18, 2024
    Applicants: Tokyo Electron Limited, Tokyo Electron Limited
    Inventors: Jianping Zhao, John Carroll, Charles Schlechte, Peter Lowell George Ventzek
  • Publication number: 20240015710
    Abstract: This application provides a communication method, apparatus, and system. A network device sends a first downlink signal to a terminal device through a downlink slot of a first band, and simultaneously, the network device receives a first uplink signal from the terminal device through an uplink slot of a second band, where there is an association relationship between an uplink-downlink slot configuration of the first band and an uplink-downlink slot configuration of the second band.
    Type: Application
    Filed: September 21, 2023
    Publication date: January 11, 2024
    Inventors: Xianghua Li, Jianping Zhao, Guanxi Zhang
  • Publication number: 20230399739
    Abstract: A plasma processing apparatus includes a plasma processing chamber, a substrate holder disposed in the chamber, and a radio frequency (RF) electrode disposed within the chamber, an RF power source configured to supply continuous wave RF power having frequency in the very high frequency range to the RF electrode, and a direct current (DC) power source configured to supply continuous wave DC power to the chamber through an RF choke. The DC power is supplied concurrently with the RF power. The RF power source is electrically coupled to the RF electrode through an impedance matching circuit and is separate from the DC power source. The RF electrode may be an upper electrode or a lower electrode, such as the substrate holder. The DC power may be supplied to an upper or lower electrode, or through a wall of the chamber.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 14, 2023
    Inventors: Jianping Zhao, Peter Lowell George Ventzek, Toshihiko Iwao
  • Publication number: 20230386789
    Abstract: A method of performing a plasma process includes generating, at an output of a signal generator, a first RF signal at a first frequency. The signal generator is coupled to a plasma chamber through a matching circuit. Based on a feedback from the first RF signal, variable components of the matching circuit are moved to fixed positions. A second RF signal is generated at a second frequency at the output of the signal generator to ignite a plasma within the plasma chamber. In response to detecting the plasma, the signal generator switches to output a third RF signal at the first frequency to sustain the plasma, which is configured to process a substrate loaded into the plasma chamber while holding the matching circuit at the fixed positions.
    Type: Application
    Filed: May 27, 2022
    Publication date: November 30, 2023
    Inventors: Charles Schlechte, Jianping Zhao, John Carroll, Peter Lowell George Ventzek
  • Patent number: 11830709
    Abstract: An exemplary plasma processing system includes a plasma processing chamber, an electrode for powering plasma in the plasma processing chamber, a tunable radio frequency (RF) signal generator configured to output a first signal at a first frequency and a second signal at a second frequency. The second frequency is at least 1.1 times the first frequency. The system includes a broadband power amplifier coupled to the tunable RF signal generator, the first frequency and the second frequency being within an operating frequency range of the broadband power amplifier. The output of the broadband power amplifier is coupled to the electrode. The broadband power amplifier is configured to supply, at the output, first power at the first frequency and second power at the second frequency.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: November 28, 2023
    Assignee: Tokyo Electron Limited
    Inventors: Jianping Zhao, Peter Ventzek
  • Patent number: 11815565
    Abstract: The present disclosure provides a system for perceiving an operating state of a large power transformer based on vibro-acoustic integration, including a perception layer, a network layer, and a diagnostic layer, where the perception layer is used for monitoring, in real time, a state parameter for a coupling vibration signal and an acoustic signal of each of a transformer core, a winding, a clamp and a housing, a state parameter of each of a vibration signal and an acoustic signal during a gear position change of an on-load tap changer (OLTC), and preliminarily diagnosing and analyzing monitored data. The system can monitor the operating state of the OLTC online for a long time, flexibly configure the sensor channel and the sensor type according to different application requirements, automatically acquire and identify the gear position change, and correctly identify and process a gear position corresponding to the monitoring signal.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: November 14, 2023
    Assignees: STATE GRID XINJIANG CO., LTD. ELECTRIC POWER RESEARCH INSTITUTE, Nanjing Unitech Electric Power Co., Ltd., State Grid Corporation of China
    Inventors: Yi You, Ling Zhang, Kaike Wang, Cheng He, Puzhi Zhao, Ronggang Gao, Jianping Zhao, Xinxin Wang, Xianfu Liu
  • Patent number: 11773484
    Abstract: A method of forming a carbon hard mask includes generating a radio frequency plasma including carbon-based ions by supplying continuous wave radio frequency power to a plasma processing chamber. The carbon-based ions have a first average ion energy. The method further includes adjusting the first average ion energy of the carbon-based ions to a second average ion energy by supplying continuous wave direct current power to the plasma processing chamber concurrently with the continuous wave radio frequency power and forming a carbon hard mask at a substrate within the plasma processing chamber by delivering the carbon-based ions having the second average ion energy to the substrate.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: October 3, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Jianping Zhao, Peter Lowell George Ventzek, Toshihiko Iwao
  • Publication number: 20230299797
    Abstract: Embodiments of this application disclose a radio frequency unit, an antenna, and a signal processing method. The method includes: receiving an uplink signal in a downlink slot, where the uplink signal includes signals of N frequency bands; filtering and amplifying the signals of the N frequency bands; converting the uplink signal into a digital intermediate frequency signal; and then processing the digital intermediate frequency signal.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 21, 2023
    Inventors: Xianghua LI, Zhongming QIN, Xin YU, Guanxi ZHANG, Jianping ZHAO
  • Patent number: 11728135
    Abstract: This disclosure relates to a plasma processing system for controlling plasma density near the edge or perimeter of a substrate that is being processed. The plasma processing system may include a plasma chamber that can receive and process the substrate using plasma for etching the substrate, doping the substrate, or depositing a film on the substrate. This disclosure relates to a plasma processing system for controlling plasma density near the edge or perimeter of a substrate that is being processed. In one embodiment, the plasma density may be controlled by reducing the rate of loss of ions to the chamber wall during processing. This may include biasing a dual electrode ring assembly in the plasma chamber to alter the potential difference between the chamber wall region and the bulk plasma region.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: August 15, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Jianping Zhao, Lee Chen, Merritt Funk, Zhiying Chen
  • Publication number: 20230154745
    Abstract: A method of nitridation includes cyclically performing the following steps in situ within a processing chamber at a temperature less than about 400° C.: directing an energy flux to a localized region of an unreactive surface of a substrate to convert the localized region of the unreactive surface to a localized reactive region: and selectively nitridating the localized reactive region using a nitrogen-based gas to convert the localized reactive region to a nitride layer.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 18, 2023
    Inventors: Jianping Zhao, Peter Lowell George Ventzek, Toshihiko Iwao
  • Publication number: 20230143204
    Abstract: A method of plasma processing that includes: flowing a first gas and a second gas into a plasma processing chamber including a substrate, the second gas including a film precursor; at a first time instance, while maintaining the flow of the first gas, shutting off the flow of the second gas into the plasma processing chamber; and at a second time instance after the first time instance, powering an electrode of the plasma processing chamber to generate a plasma within the plasma processing chamber, the surface of the substrate being exposed to the generated plasma to form a film over the substrate.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 11, 2023
    Inventors: Toshihiko Iwao, Jianping Zhao