Location History:
- Taichung, TW (2006)
- Wufong, TW (2006)
- Tao-Yung Hsien, TW (2007)
- Wufong Township, Taichung County, TW (2005 - 2010)
Company Filing History:
Years Active: 2005-2010
Title: Innovations of Cheng-Tsang Yu
Introduction
Cheng-Tsang Yu is a prominent inventor based in Wufong Township, Taichung County, Taiwan. He has made significant contributions to the field of semiconductor technology, particularly in the development of gallium-nitride (GaN) based devices. With a total of 13 patents to his name, Yu's work has advanced the efficiency and quality of light-emitting diodes and ultraviolet photo detectors.
Latest Patents
One of his latest patents is focused on a gallium-nitride based light emitting diode light emitting layer structure. This innovation provides a number of light-emitting layer structures for GaN-based LEDs that can increase lighting efficiency while facilitating the growth of epitaxial layers with better quality. The light-emitting layer structure is strategically located between the n-type GaN contact layer and the p-type GaN contact layer. It features a lower barrier layer, at least one intermediate layer, and an upper barrier layer, with multiple intermediate layers separated by intermediate barrier layers.
Another significant patent by Yu is a gallium-nitride based ultraviolet photo detector. This structure includes an n-type contact layer, a light absorption layer, a light penetration layer, and a p-type contact layer, all stacked sequentially on a substrate. The layers are composed of aluminum-gallium-indium-nitride (AlGaInN) compound semiconductors, allowing for the achievement of desired band gaps and high responsiveness to specific ultraviolet wavelengths. The design also ensures compatible lattice constants to avoid excessive stress and maintain high-quality epitaxial structures.
Career Highlights
Cheng-Tsang Yu is currently associated with Formosa Epitaxy Incorporation, where he continues to innovate in the field of semiconductor technology. His work has not only contributed to advancements in LED technology but has also paved the way for improved ultraviolet detection systems.
Collaborations
Yu has collaborated with notable coworkers such as Liang-Wen Wu and Tzu-Chi Wen, further enhancing the research and development efforts within his field.
Conclusion
Cheng-Tsang Yu's contributions to gallium-nitride technology have significantly impacted the efficiency and quality of semiconductor devices. His innovative patents reflect a commitment to advancing technology in this critical area.