Patents by Inventor Guochong Weng

Guochong Weng 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: 11662323
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EU mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 30, 2023
    Assignee: ASML Netherlands B.V.
    Inventors: Guochong Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Publication number: 20210172891
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EU mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Application
    Filed: September 14, 2020
    Publication date: June 10, 2021
    Inventors: Guochong Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Patent number: 10775325
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 15, 2020
    Assignee: ASML Netherlands B.V.
    Inventors: Guochong Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Publication number: 20190170671
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Application
    Filed: September 28, 2018
    Publication date: June 6, 2019
    Inventors: Guochong WENG, Youjin WANG, Chiyan KUAN, Chung-Shih PAN
  • Patent number: 10088438
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: October 2, 2018
    Assignee: HERMES MICROVISION, INC.
    Inventors: Guochong Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Patent number: 9859089
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: January 2, 2018
    Assignee: HERMES MICROVISION INC.
    Inventors: Guochong Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Publication number: 20170052129
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Application
    Filed: October 31, 2016
    Publication date: February 23, 2017
    Inventors: Guochong Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Patent number: 9485846
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: November 1, 2016
    Assignee: HERMES MICROVISION INC.
    Inventors: Guochong Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Publication number: 20150325402
    Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.
    Type: Application
    Filed: July 10, 2015
    Publication date: November 12, 2015
    Inventors: Guochong Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan