Location History:
- Tau-Yuan, TW (1991)
- Chung-Li Taoyuan, TW (1994)
- Taiwan, TW (1994)
- Chung-Li, TW (1995)
- Hsinchu County, TW (2010 - 2011)
Company Filing History:
Years Active: 1991-2011
Title: Innovations of Chih-Cheng Chiang
Introduction
Chih-Cheng Chiang is a prominent inventor based in Hsinchu County, Taiwan. He has made significant contributions to the field of light-emitting devices, holding a total of six patents. His work focuses on enhancing the efficiency and quality of light-emitting diodes (LEDs) through innovative methods and materials.
Latest Patents
One of his latest patents is a light-emitting diode device and fabrication method. This invention provides a device that includes a pair of electrodes, with one being electrically contacted to a holder. An LED chip is fixed within the holder, which is covered by a wrapping material that also contains a plurality of nanocrystals in a quantum dot state. These nanocrystals, satisfying the formula ZnCdS, can produce a luminous wavelength ranging from about 400 nm to 800 nm. The device also features organic molecules bonded to the surface of the nanocrystals, enhancing luminous uniformity and protecting the nanocrystals from oxidation.
Another notable patent is the preparation method of a white light quantum dot. This method involves creating a ZnCdA quantum dot capable of emitting white light, where A can be S or SSe. The preparation process includes mixing a zinc-containing precursor and a cadmium-containing precursor with an organic acid, followed by the addition of a sulfur-containing organic solution to produce the quantum dot.
Career Highlights
Chih-Cheng Chiang is affiliated with the Industrial Technology Research Institute, where he continues to innovate in the field of semiconductor technology. His work has been instrumental in advancing the capabilities of LED technology, making it more efficient and versatile for various applications.
Collaborations
He has collaborated with notable colleagues, including Shu-Ru Chung and Kuan-Wen Wang, contributing to the development of cutting-edge technologies in the field.
Conclusion
Chih-Cheng Chiang's contributions to the field of light-emitting devices exemplify the impact of innovative thinking in technology. His patents reflect a commitment to improving the efficiency and quality of lighting solutions, paving the way for future advancements in the industry.