Patents by Inventor Shih-Chieh Haung

Shih-Chieh Haung 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).

  • PEC ETCHING OF (20-2-1) SEMIPOLAR GALLIUM NITRIDE FOR EXTERNAL EFFICIENCY ENHANCEMENT IN LIGHT EMITTING DIODE APPLICATIONS
    Publication number: 20140167059
    Abstract: A method of performing a photoelectrochemical (PEC) etch on an exposed surface of a semipolar {20-2-1} III-nitride semiconductor, for improving light extraction from and for enhancing external efficiency of one or more active layers formed on or above the semipolar {20-2-1} III-nitride semiconductor.
    Type: Application
    Filed: August 30, 2013
    Publication date: June 19, 2014
    Inventors: Chung-Ta Hsu, Chia-Yen Huang, Yuji Zhao, Shih-Chieh Haung, Daniel F. Feezell, Steven P. DenBaars, Shuji Nakamura, James S. Speck