Patents by Inventor Andrew S. Fong

Andrew S. Fong 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: 10163605
    Abstract: Systems and methods for statistical data decimation are described. The method includes receiving a variable from a radio frequency (RF) system, propagating the variable through a model of the RF system, and counting an output of the model for the variable to generate a count. The method further includes determining whether the count meets a count threshold, generating a statistical value of the variable at the output of the model upon determining that the count meets the count threshold, and sending the statistical value to the RF system to adjust the variable.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 25, 2018
    Assignee: Lam Research Corporation
    Inventors: Andrew S. Fong, John C. Valcore, Jr.
  • Patent number: 9947513
    Abstract: Systems and methods for performing edge ramping are described. A system includes a base RF generator for generating a first RF signal. The first RF signal transitions from one state to another. The transition from one state to another of the first RF signal results in a change in plasma impedance. The system further includes a secondary RF generator for generating a second RF signal. The second RF signal transitions from one state to another to stabilize the change in the plasma impedance. The system includes a controller coupled to the secondary RF generator. The controller is used for providing parameter values to the secondary RF generator to perform edge ramping of the second RF signal when the second RF signal transitions from one state to another.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: April 17, 2018
    Assignee: Lam Research Corporation
    Inventors: John C. Valcore, Jr., Bradford J. Lyndaker, Andrew S. Fong
  • Publication number: 20180053632
    Abstract: Systems and methods for statistical data decimation are described. The method includes receiving a variable from a radio frequency (RF) system, propagating the variable through a model of the RF system, and counting an output of the model for the variable to generate a count. The method further includes determining whether the count meets a count threshold, generating a statistical value of the variable at the output of the model upon determining that the count meets the count threshold, and sending the statistical value to the RF system to adjust the variable.
    Type: Application
    Filed: October 31, 2017
    Publication date: February 22, 2018
    Inventors: Andrew S. Fong, John C. Valcore, JR.
  • Patent number: 9831065
    Abstract: Systems and methods for statistical data decimation are described. The method includes receiving a variable from a radio frequency (RF) system, propagating the variable through a model of the RF system, and counting an output of the model for the variable to generate a count. The method further includes determining whether the count meets a count threshold, generating a statistical value of the variable at the output of the model upon determining that the count meets the count threshold, and sending the statistical value to the RF system to adjust the variable.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: November 28, 2017
    Assignee: Lam Research Corporation
    Inventors: Andrew S. Fong, John C. Valcore, Jr.
  • Publication number: 20170263419
    Abstract: Systems and methods for performing edge ramping are described. A system includes a base RF generator for generating a first RF signal. The first RF signal transitions from one state to another. The transition from one state to another of the first RF signal results in a change in plasma impedance. The system further includes a secondary RF generator for generating a second RF signal. The second RF signal transitions from one state to another to stabilize the change in the plasma impedance. The system includes a controller coupled to the secondary RF generator. The controller is used for providing parameter values to the secondary RF generator to perform edge ramping of the second RF signal when the second RF signal transitions from one state to another.
    Type: Application
    Filed: May 25, 2017
    Publication date: September 14, 2017
    Inventors: John C. Valcore, JR., Bradford J. Lyndaker, Andrew S. Fong
  • Patent number: 9673026
    Abstract: Systems and methods for performing edge ramping are described. A system includes a base RF generator for generating a first RF signal. The first RF signal transitions from one state to another. The transition from one state to another of the first RF signal results in a change in plasma impedance. The system further includes a secondary RF generator for generating a second RF signal. The second RF signal transitions from one state to another to stabilize the change in the plasma impedance. The system includes a controller coupled to the secondary RF generator. The controller is used for providing parameter values to the secondary RF generator to perform edge ramping of the second RF signal when the second RF signal transitions from one state to another.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 6, 2017
    Assignee: Lam Research Corporation
    Inventors: John C. Valcore, Jr., Bradford J. Lyndaker, Andrew S. Fong
  • Publication number: 20160322202
    Abstract: Systems and methods for performing edge ramping are described. A system includes a base RF generator for generating a first RF signal. The first RF signal transitions from one state to another. The transition from one state to another of the first RF signal results in a change in plasma impedance. The system further includes a secondary RF generator for generating a second RF signal. The second RF signal transitions from one state to another to stabilize the change in the plasma impedance. The system includes a controller coupled to the secondary RF generator. The controller is used for providing parameter values to the secondary RF generator to perform edge ramping of the second RF signal when the second RF signal transitions from one state to another.
    Type: Application
    Filed: July 7, 2016
    Publication date: November 3, 2016
    Inventors: John C. Valcore, JR., Bradford J. Lyndaker, Andrew S. Fong
  • Patent number: 9408288
    Abstract: Systems and methods for performing edge ramping are described. A system includes a base RF generator for generating a first RF signal. The first RF signal transitions from one state to another. The transition from one state to another of the first RF signal results in a change in plasma impedance. The system further includes a secondary RF generator for generating a second RF signal. The second RF signal transitions from one state to another to stabilize the change in the plasma impedance. The system includes a controller coupled to the secondary RF generator. The controller is used for providing parameter values to the secondary RF generator to perform edge ramping of the second RF signal when the second RF signal transitions from one state to another.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: August 2, 2016
    Assignee: Lam Research Corporation
    Inventors: John C. Valcore, Jr., Bradford J. Lyndaker, Andrew S. Fong
  • Publication number: 20160172162
    Abstract: Systems and methods for statistical data decimation are described. The method includes receiving a variable from a radio frequency (RF) system, propagating the variable through a model of the RF system, and counting an output of the model for the variable to generate a count. The method further includes determining whether the count meets a count threshold, generating a statistical value of the variable at the output of the model upon determining that the count meets the count threshold, and sending the statistical value to the RF system to adjust the variable.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 16, 2016
    Inventors: Andrew S. Fong, John C. Valcore, JR.
  • Patent number: 9295148
    Abstract: Systems and methods for statistical data decimation are described. The method includes receiving a variable from a radio frequency (RF) system, propagating the variable through a model of the RF system, and counting an output of the model for the variable to generate a count. The method further includes determining whether the count meets a count threshold, generating a statistical value of the variable at the output of the model upon determining that the count meets the count threshold, and sending the statistical value to the RF system to adjust the variable.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: March 22, 2016
    Assignee: Lam Research Corporation
    Inventors: Andrew S. Fong, John C. Valcore, Jr.
  • Publication number: 20140167613
    Abstract: Systems and methods for statistical data decimation are described. The method includes receiving a variable from a radio frequency (RF) system, propagating the variable through a model of the RF system, and counting an output of the model for the variable to generate a count. The method further includes determining whether the count meets a count threshold, generating a statistical value of the variable at the output of the model upon determining that the count meets the count threshold, and sending the statistical value to the RF system to adjust the variable.
    Type: Application
    Filed: November 21, 2013
    Publication date: June 19, 2014
    Applicant: Lam Research Corporation
    Inventors: Andrew S. Fong, John C. Valcore, JR.
  • Publication number: 20140076713
    Abstract: Systems and methods for performing edge ramping are described. A system includes a base RF generator for generating a first RF signal. The first RF signal transitions from one state to another. The transition from one state to another of the first RF signal results in a change in plasma impedance. The system further includes a secondary RF generator for generating a second RF signal. The second RF signal transitions from one state to another to stabilize the change in the plasma impedance. The system includes a controller coupled to the secondary RF generator. The controller is used for providing parameter values to the secondary RF generator to perform edge ramping of the second RF signal when the second RF signal transitions from one state to another.
    Type: Application
    Filed: October 24, 2012
    Publication date: March 20, 2014
    Inventors: John C. Valcore, JR., Bradford J. Lyndaker, Andrew S. Fong