Patents by Inventor Tsu-Wu Chiang

Tsu-Wu Chiang 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: 20230253252
    Abstract: The present invention provides a method for plasma dicing a substrate. The substrate is placed onto a support film on a frame to form a work piece. A die attach film is adhered to the substrate. A process chamber having a plasma source is provided. The work piece is placed into the process chamber. A plasma is generated from the plasma source in the plasma process chamber. The work piece is processed using the generated plasma and a byproduct generated from the die attach film while the die attach film is exposed to the generated plasma.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 10, 2023
    Applicant: Plasma-Therm LLC
    Inventors: Tsu-Wu Chiang, Russell Westerman
  • Patent number: 11651999
    Abstract: The present invention provides a method for plasma dicing a substrate. The substrate is provided with a top surface and a bottom surface, the top surface of the substrate having a plurality of street areas and at least one device structure. The substrate is placed onto a support film on a frame to form a work piece. A process chamber having a plasma source is provided. A work piece support is provided within the plasma process chamber. The work piece is placed onto the work piece support. A plasma is generated from the plasma source in the plasma process chamber. The work piece is processed using the generated plasma and a byproduct generated from the support film while the support film is exposed to the generated plasma.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: May 16, 2023
    Assignee: Plasma-Therm LLC
    Inventors: Tsu-Wu Chiang, Russell Westerman
  • Publication number: 20210020513
    Abstract: The present invention provides a method for plasma dicing a substrate. The substrate is provided with a top surface and a bottom surface, the top surface of the substrate having a plurality of street areas and at least one device structure. The substrate is placed onto a support film on a frame to form a work piece. A process chamber having a plasma source is provided. A work piece support is provided within the plasma process chamber. The work piece is placed onto the work piece support. A plasma is generated from the plasma source in the plasma process chamber. The work piece is processed using the generated plasma and a byproduct generated from the support film while the support film is exposed to the generated plasma.
    Type: Application
    Filed: October 2, 2020
    Publication date: January 21, 2021
    Applicant: Plasma-Therm LLC
    Inventors: Tsu-Wu Chiang, Russell Westerman
  • Patent number: 10818552
    Abstract: The present invention provides a method for plasma dicing a substrate. The substrate is provided with a top surface and a bottom surface, the top surface of the substrate having a plurality of street areas and at least one device structure. The substrate is placed onto a support film on a frame to form a work piece. A process chamber having a plasma source is provided. A work piece support is provided within the plasma process chamber. The work piece is placed onto the work piece support. A plasma is generated from the plasma source in the plasma process chamber. The work piece is processed using the generated plasma and a byproduct generated from the support film while the support film is exposed to the generated plasma.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: October 27, 2020
    Assignee: Plasma-Therm LLC
    Inventors: Tsu-Wu Chiang, Russell Westerman
  • Publication number: 20190189513
    Abstract: The present invention provides a method for plasma dicing a substrate. The substrate is provided with a top surface and a bottom surface, the top surface of the substrate having a plurality of street areas and at least one device structure. The substrate is placed onto a support film on a frame to form a work piece. A process chamber having a plasma source is provided. A work piece support is provided within the plasma process chamber. The work piece is placed onto the work piece support. A plasma is generated from the plasma source in the plasma process chamber. The work piece is processed using the generated plasma and a byproduct generated from the support film while the support film is exposed to the generated plasma.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 20, 2019
    Applicant: Plasma-Therm LLC
    Inventors: Tsu-Wu Chiang, Russell Westerman
  • Patent number: 10269641
    Abstract: The present invention provides a method for plasma dicing a substrate. The substrate is provided with a top surface and a bottom surface, the top surface of the substrate having a plurality of street areas and at least one device structure. The substrate is placed onto a support film on a frame to form a work piece. A process chamber having a plasma source is provided. A work piece support is provided within the plasma process chamber. The work piece is placed onto the work piece support. A plasma is generated from the plasma source in the plasma process chamber. The work piece is processed using the generated plasma and a byproduct generated from the support film while the support film is exposed to the generated plasma.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: April 23, 2019
    Assignee: Plasma-Therm LLC
    Inventors: Tsu-Wu Chiang, Russell Westerman
  • Publication number: 20180151435
    Abstract: The present invention provides a method for plasma dicing a substrate. The substrate is provided with a top surface and a bottom surface, the top surface of the substrate having a plurality of street areas and at least one device structure. The substrate is placed onto a support film on a frame to form a work piece. A process chamber having a plasma source is provided. A work piece support is provided within the plasma process chamber. The work piece is placed onto the work piece support. A plasma is generated from the plasma source in the plasma process chamber. The work piece is processed using the generated plasma and a byproduct generated from the support film while the support film is exposed to the generated plasma.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Applicant: Plasma-Therm LLC
    Inventors: Tsu-Wu Chiang, Russell Westerman