Patents by Inventor Jiunhau Fu

Jiunhau Fu 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: 8804100
    Abstract: Method and system for calibrating exposure system for manufacturing of integrated circuits. According to an embodiment, the present invention provides a method for determining one or more focus parameters for an exposure system. As an example, the exposure system is used for forming patterns on semiconductor wafer. The method includes a step for providing a semiconductor wafer. The semiconductor wafer is characterized by a diameter. The method also includes a step for forming a plurality of patterns using the exposure system on the semiconductor wafer. As an example, each of the plurality of patterns being associated with a focus reference value (e.g., focus distance, focus angle, etc.). The method additionally includes a step for determining a plurality of shift profiles, and each of the shift profile is associated one of the plurality of patterns.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: August 12, 2014
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Jiunhau Fu, Cher Huan Tan
  • Publication number: 20100316958
    Abstract: Method and system for calibrating exposure system for manufacturing of integrated circuits. According to an embodiment, the present invention provides a method for determining one or more focus parameters for an exposure system. As an example, the exposure system is used for forming patterns on semiconductor wafer. The method includes a step for providing a semiconductor wafer. The semiconductor wafer is characterized by a diameter. The method also includes a step for forming a plurality of patterns using the exposure system on the semiconductor wafer. As an example, each of the plurality of patterns being associated with a focus reference value (e.g., focus distance, focus angle, etc.). The method additionally includes a step for determining a plurality of shift profiles, and each of the shift profile is associated one of the plurality of patterns.
    Type: Application
    Filed: March 4, 2009
    Publication date: December 16, 2010
    Applicant: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Jiunhau Fu, Cher Huan Tan