Patents by Inventor Ngoc-Hung NGUYEN

Ngoc-Hung NGUYEN 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: 12087549
    Abstract: A RF power generator has a RF power source configured to generate an output signal. A power splitter is configured to receive the output signal and generate a plurality of split signals. A demagnetizing circuit is configured to receive the plurality of split signals. The demagnetizing circuit is configured to include a plurality of inductances corresponding to the plurality of split signals. The plurality of inductances is configured to reduce the effects of mutual impedance of an ICP chamber in series with the plurality of inductances so that a ratio between a pair of the plurality of split signals varies substantially linearly as one of the pair of the plurality of split signals is varied.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: September 10, 2024
    Assignee: MKS Instruments, Inc.
    Inventors: Dinh-Vuong Le, Jaechul Jung, Hohyoung Lee, Jeongseok Jang, Ngoc-Hung Nguyen
  • Publication number: 20230215695
    Abstract: A RF power generator has a RF power source configured to generate an output signal. A power splitter is configured to receive the output signal and generate a plurality of split signals. A demagnetizing circuit is configured to receive the plurality of split signals. The demagnetizing circuit is configured to include a plurality of inductances corresponding to the plurality of split signals. The plurality of inductances is configured to reduce the effects of mutual impedance of an ICP chamber in series with the plurality of inductances so that a ratio between a pair of the plurality of split signals varies substantially linearly as one of the pair of the plurality of split signals is varied.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 6, 2023
    Inventors: Dinh-Vuong LE, Jaechul JUNG, Hohyoung LEE, Jeongseok JANG, Ngoc-Hung NGUYEN