Patents by Inventor Chung-Shih Pan

Chung-Shih Pan 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: 10054556
    Abstract: A structure for discharging 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 discharging 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 bottom. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUU mask is grounded.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: August 21, 2018
    Assignee: HERMES MICROVISION INC.
    Inventors: You-Jin 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: 20170053774
    Abstract: A structure for discharging 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 discharging 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 bottom. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUU mask is grounded.
    Type: Application
    Filed: October 31, 2016
    Publication date: February 23, 2017
    Inventors: You-Jin 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: 9572237
    Abstract: A structure for discharging 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 discharging 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 bottom. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUU mask is grounded.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: February 14, 2017
    Assignee: HERMES MICROVISION INC.
    Inventors: You-Jin 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
  • Patent number: 9460887
    Abstract: A layer of conductive or semi-conductive material is formed on a surface of a sample and then the sample, when being charged particle beam imaged, is electrically coupled with an object having a large charge-receiving or charge-storage capacity (e.g., capacitance). Hence, the charging on the sample surface is removed and released quickly by the layer. The layer is then removed by reacting it with a predefined agent. The reaction forms a gaseous product which does not form a physical or chemical bond to the sample surface.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: October 4, 2016
    Assignee: HERMES MICROVISION, INC.
    Inventors: You-Jin Wang, 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
  • Publication number: 20150305131
    Abstract: A structure for discharging 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 discharging 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 bottom. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUU mask is grounded.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Inventors: You-Jin WANG, Chiyan KUAN, Chung-Shih PAN
  • Patent number: 9164399
    Abstract: A system for operating EUV mask stored in reticle SMIF pod and/or dual pod is provided, wherein the reticle SMIF pod and Dual pod are for storing EUV mask. The system can be a sorter for EUV mask transferred from reticle SMIF pod into dual pod, and vice versa, or an operating system for tools relating to EUV mask, wherein the tools may be EUV lithography, or inspection tool for inspecting EUV mask.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: October 20, 2015
    Assignee: HERMES-MICROVISION, INC.
    Inventors: Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Patent number: 9113538
    Abstract: A structure for discharging 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 discharging 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 bottom. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUU mask is grounded.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: August 18, 2015
    Assignee: HERMES MICROVISION, INC.
    Inventors: You-Jin Wang, Chiyan Kuan, Chung-Shih Pan
  • Publication number: 20150102220
    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: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Guoching Weng, Youjin Wang, Chiyan Kuan, Chung-Shih Pan
  • Publication number: 20140027634
    Abstract: A structure for discharging 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 discharging 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 bottom. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUU mask is grounded.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 30, 2014
    Applicant: HERMES MICROVISION, INC.
    Inventors: You-Jin WANG, Chiyan KUAN, Chung-Shih PAN
  • Patent number: 8604428
    Abstract: A method of controlling particle absorption on a wafer sample and charged particle beam imaging system thereof prevents particle absorption by grounding the wafer sample and kept electrically neutral during the transfer-in and transfer-out process.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: December 10, 2013
    Assignee: Hermes Microvision, Inc.
    Inventors: You-Jin Wang, Chung-Shih Pan
  • Patent number: 8575573
    Abstract: A structure for discharging 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 discharging 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 bottom. The inspection quality of the EUV mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUU mask is grounded.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: November 5, 2013
    Assignee: Hermes Microvision, Inc.
    Inventors: You-Jin Wang, Chiyan Kuan, Chung-Shih Pan