Patents by Inventor Lin Hu-Wei

Lin Hu-Wei 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).

  • Publication number: 20140267692
    Abstract: In semiconductor fabrication processes, one or more wafers are often exposed to processes such as chemical vapor deposition to form semiconductor components thereupon. Often, some of the wafers exhibit flaws due to contamination or processing errors occurring before, during, or after component formation. Inspection of the wafers is often performed by direct visual inspection of humans, which is prone to errors due to flaws that are too small to view directly; to particles naturally arising in the human eye; and to fatigue caused by inspection of large numbers of wafers. Presented herein are inspection techniques involving positioning the wafer in a dark chamber exposing the surface of the wafer to a light source at a first angle, and capturing with a camera an image of the light source reflected from the surface of the wafer at a second angle. Wafers identified as exhibiting flaws are removed from the wafer set.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 18, 2014
    Applicant: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Lin Hu-Wei, Hsiao-Yu Chen, Jr-Wei Ye, Hong-Hsing Chou, Chih-Hsien Hsu, Tsung-Cheng Huang, Teng Hua-Kuang, Hsieh Chi-Jen, Chun-Chih Chen