Sung Jae Chang

Title: **Innovative Contributions of Sung Jae Chang: A Pioneer in Semiconductor Technology**

Introduction

Sung Jae Chang, an accomplished inventor based in Daejeon, South Korea, has made significant strides in the field of semiconductor technology. With a total of three patents to his name, Chang is recognized for his innovative approaches to electrical circuits and high-electron-mobility transistors.

Latest Patents

One of Chang's latest patents is focused on the **Electrical Circuit of Semiconductor Channel Resistor**. This invention outlines an apparatus and method for generating an electrical circuit that includes a first passive element part with a resistor and a capacitor connected in parallel. This innovation enhances functionalities through the integration of an ohmic resistor, improving overall circuit design.

Another noteworthy patent by Chang is the **High-Electron-Mobility Transistor Device and Method of Manufacturing the Same**. This method involves the formation of a transition layer and a semiconductor layer on a substrate, along with innovative techniques for etching to establish a barrier layer. The meticulous design of source and drain electrodes emphasizes the creation of a 2-dimensional electron gas layer, highlighting Chang's expertise in semiconductor manufacturing.

Career Highlights

Sung Jae Chang is affiliated with the Electronics and Telecommunications Research Institute (ETRI), where he has been instrumental in advancing research in semiconductor technologies. His role at ETRI has positioned him as a key player in innovation within the electronics industry.

Collaborations

Throughout his career, Chang has collaborated with several notable coworkers, including Seong Il Kim and Hae Cheon Kim. These collaborations underscore the importance of teamwork in driving technological advancements in the field of electronics and telecommunications.

Conclusion

Sung Jae Chang continues to be a vital contributor to semiconductor innovation, with his inventions making a substantial impact on the industry. His work not only enhances existing technologies but also paves the way for future advancements in electronics and telecommunications.