Patents by Inventor Heng-Wei LIAO

Heng-Wei LIAO 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: 11852983
    Abstract: An alignment nozzle jig for centering a coater photoresist arm that includes an alignment nozzle block. The alignment nozzle jig also includes an endoscope holder removably secured to a bottom of the alignment nozzle block, an endoscope, and an alignment mark removably coupled to the endoscope holder opposite the alignment nozzle block. The alignment nozzle jig is retrieved from a nozzle bath by the coater arm and transferred to a center of a chuck in an associated process chamber. Via the endoscope, the coater photoresist arm is aligned with the center of the chuck using the alignment mark.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: December 26, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Heng-Wei Liao, Ju-Hung Chen, Shih-Yun Chen
  • Publication number: 20230367232
    Abstract: An alignment nozzle jig for centering a coater photoresist arm that includes an alignment nozzle block. The alignment nozzle jig also includes an endoscope holder removably secured to a bottom of the alignment nozzle block, an endoscope, and an alignment mark removably coupled to the endoscope holder opposite the alignment nozzle block. The alignment nozzle jig is retrieved from a nozzle bath by the coater arm and transferred to a center of a chuck in an associated process chamber. Via the endoscope, the coater photoresist arm is aligned with the center of the chuck using the alignment mark.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 16, 2023
    Inventors: Heng-Wei Liao, Shih-Yun Chen, Ju Hung Chen
  • Patent number: 11666951
    Abstract: A wafer handler cleaning tool may include a scraping device positioned near semiconductor equipment (e.g., a cooling plate, a semiconductor processing device, and/or the like) such that the scraping device removes foreign objects, debris, and/or other types of matter from the underside of the wafer handler when the wafer handler loads a wafer into the semiconductor equipment and/or unloads the wafer from the semiconductor equipment. Moreover, the wafer handler cleaning tool may include a negative pressure device to draw the removed foreign objects, debris, and/or other types of matter away from the scraping device and toward a filtration device such that the filtration device captures the removed foreign objects, debris, and/or other types of matter.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: June 6, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Heng-Wei Liao, Kuo-Hua Wang, Ming-Tsai Kuan
  • Publication number: 20230046778
    Abstract: An alignment nozzle jig for centering a coater photoresist arm that includes an alignment nozzle block. The alignment nozzle jig also includes an endoscope holder removably secured to a bottom of the alignment nozzle block, an endoscope, and an alignment mark removably coupled to the endoscope holder opposite the alignment nozzle block. The alignment nozzle jig is retrieved from a nozzle bath by the coater arm and transferred to a center of a chuck in an associated process chamber. Via the endoscope, the coater photoresist arm is aligned with the center of the chuck using the alignment mark.
    Type: Application
    Filed: August 12, 2021
    Publication date: February 16, 2023
    Inventors: Heng-Wei Liao, Ju-Hung Chen, Shih-Yun Chen
  • Publication number: 20220008966
    Abstract: A wafer handler cleaning tool may include a scraping device positioned near semiconductor equipment (e.g., a cooling plate, a semiconductor processing device, and/or the like) such that the scraping device removes foreign objects, debris, and/or other types of matter from the underside of the wafer handler when the wafer handler loads a wafer into the semiconductor equipment and/or unloads the wafer from the semiconductor equipment. Moreover, the wafer handler cleaning tool may include a negative pressure device to draw the removed foreign objects, debris, and/or other types of matter away from the scraping device and toward a filtration device such that the filtration device captures the removed foreign objects, debris, and/or other types of matter.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 13, 2022
    Inventors: Heng-Wei LIAO, Kuo-Hua WANG, Ming Tsai KUAN