Location History:
- Taichung, TW (2016 - 2017)
- Hsinchu, TW (2019)
Company Filing History:
6 out of 1,224 
2 out of 53 Years Active: 2016-2019
Title: The Innovations of Chien-Kai Tung
Introduction
Chien-Kai Tung is a prominent inventor based in Taichung, Taiwan. He has made significant contributions to the field of LED technology and high electron mobility transistors (HEMTs). With a total of 6 patents to his name, Tung's work has had a considerable impact on modern lighting and semiconductor technologies.
Latest Patents
One of Tung's latest patents is an LED driver and illumination system. This innovative LED driver is designed to drive light-emitting devices (LEDs) effectively. It includes a bridge rectifier, a current driver, and a protection circuit. The bridge rectifier converts an AC input power source into a DC power source, while the current driver utilizes a constant current source to limit the magnitude of the direct current driving the LED. The protection circuit ensures the safety and functionality of the LED system.
Another notable patent is related to III-nitride high electron mobility transistors. This invention features a semiconductor epitaxial stack that includes a buffer structure, a channel layer, and a barrier layer. A two-dimensional electron gas is formed between the channel and barrier layers, enhancing the transistor's performance. The design includes specific spacing between electrodes, optimizing the device's efficiency.
Career Highlights
Chien-Kai Tung has worked with several notable companies in the industry, including Epistar Corporation and Huga Optotech Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in LED and semiconductor technologies.
Collaborations
Throughout his career, Tung has collaborated with talented individuals such as Heng-Kuang Lin and Chih-Wei Yang. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Chien-Kai Tung's contributions to the fields of LED technology and high electron mobility transistors demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving efficiency and functionality in electronic devices.