Patents by Inventor Wei-Han Chien

Wei-Han Chien 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: 9009633
    Abstract: A method of correcting assist features includes the following steps. At first, a first layout pattern is received by a computer system, and the first layout pattern is split into a plurality of first regions. Subsequently, a plurality of assist features are added into the first layout pattern to form a second layout pattern, wherein at least one of the assist features neighboring any one of the edges of the first regions is defined as a selected pattern. Then, the second layout pattern is split into a plurality of second regions. Afterwards, a check step is performed on the second region including the selected pattern, and the second layout pattern is corrected to form a corrected second layout pattern.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: April 14, 2015
    Assignee: United Microelectronics Corp.
    Inventors: Tsung-Yeh Wu, Chin-Lung Lin, Yao-Jen Fan, Wei-Han Chien, Chia-Chun Tsai
  • Publication number: 20140331191
    Abstract: A method of correcting assist features includes the following steps. At first, a first layout pattern is received by a computer system, and the first layout pattern is split into a plurality of first regions. Subsequently, a plurality of assist features are added into the first layout pattern to form a second layout pattern, wherein at least one of the assist features neighboring any one of the edges of the first regions is defined as a selected pattern. Then, the second layout pattern is split into a plurality of second regions. Afterwards, a check step is performed on the second region including the selected pattern, and the second layout pattern is corrected to form a corrected second layout pattern.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 6, 2014
    Applicant: United Microelectronics Corp.
    Inventors: Tsung-Yeh Wu, Chin-Lung Lin, Yao-Jen Fan, Wei-Han Chien, Chia-Chun Tsai