Patents by Inventor Ryuta Higuchi

Ryuta Higuchi 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: 11948782
    Abstract: A control system includes: a specifying part for specifying a model corresponding to a processing apparatus and a control algorithm that generates a control signal for controlling the processing apparatus; a simulator for simulating the state of the processing apparatus with the model; a first control signal generation part for generating a control signal based on the measurement value by using the control algorithm; a second control signal generation part for generating a control signal based on an output value of the simulator by using the control algorithm; a first adjustment part for adjusting a value of a model parameter included in the model; and a second adjustment part for adjusting a value of a control parameter included in the control algorithm so that an evaluation value calculated for the output value of the simulator becomes closer to a target value.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: April 2, 2024
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Ryuta Higuchi
  • Publication number: 20210159059
    Abstract: A control system includes: a specifying part for specifying a model corresponding to a processing apparatus and a control algorithm that generates a control signal for controlling the processing apparatus; a simulator for simulating the state of the processing apparatus with the model; a first control signal generation part for generating a control signal based on the measurement value by using the control algorithm; a second control signal generation part for generating a control signal based on an output value of the simulator by using the control algorithm; a first adjustment part for adjusting a value of a model parameter included in the model; and a second adjustment part for adjusting a value of a control parameter included in the control algorithm so that an evaluation value calculated for the output value of the simulator becomes closer to a target value.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 27, 2021
    Inventor: Ryuta HIGUCHI
  • Patent number: 10903049
    Abstract: A plasma processing apparatus 10 includes a chamber 17 in which an internal space is provided and a target object carried into the internal space is processed with plasma in the internal space; a high frequency power source 14 configured to supply a high frequency power for plasma generation within the chamber 17; a matching circuit 15 configured to match an impedance of the plasma within the chamber 17 with an impedance of the high frequency power source 14; a signal synchronizer 20 configured to calculate the impedance of the plasma within the chamber 17; a control amount calculator 12 configured to control a frequency and a magnitude of the high frequency power, and an impedance of the matching circuit 15 based on the impedance calculated by the signal synchronizer 20. Further, the signal synchronizer 20 and the control amount calculator 12 are provided on a single substrate 11.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: January 26, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Ryuta Higuchi
  • Publication number: 20190108979
    Abstract: A plasma processing apparatus 10 includes a chamber 17 in which an internal space is provided and a target object carried into the internal space is processed with plasma in the internal space; a high frequency power source 14 configured to supply a high frequency power for plasma generation within the chamber 17; a matching circuit 15 configured to match an impedance of the plasma within the chamber 17 with an impedance of the high frequency power source 14; a signal synchronizer 20 configured to calculate the impedance of the plasma within the chamber 17; a control amount calculator 12 configured to control a frequency and a magnitude of the high frequency power, and an impedance of the matching circuit 15 based on the impedance calculated by the signal synchronizer 20. Further, the signal synchronizer 20 and the control amount calculator 12 are provided on a single substrate 11.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 11, 2019
    Inventor: Ryuta Higuchi