Hea Cheon Kim

Title: Hea Cheon Kim: Innovator in Field Effect Transistors

Introduction

Hea Cheon Kim is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of electronics, particularly in the development of advanced transistors. With a total of 6 patents to his name, Kim's work has had a notable impact on the industry.

Latest Patents

One of Kim's latest patents is focused on a field effect transistor and the method for manufacturing it. This invention features a T- or π-shaped fine gate electrode, where the head portion is wider than the foot portion. A void is created between the head portion of the gate electrode and the semiconductor substrate using an insulating layer with a multi-layer structure that has different etch rates. This design reduces parasitic capacitance between the gate electrode and the semiconductor substrate, allowing for a larger head portion of the gate electrode, which in turn reduces gate resistance. Additionally, the height of the gate electrode can be adjusted by varying the thickness of the insulating layer, enhancing device performance as well as process uniformity and repeatability.

Another significant patent by Kim involves a method for fabricating a pseudomorphic high electron mobility transistor (PHEMT). This method includes several steps, such as preparing a substrate with a channel layer and a capping layer, forming a source and drain, and creating protective layers to expose portions of the substrate. The process culminates in the deposition of a metal layer to fill a gate-shaped opening, resulting in a gate connected to the substrate through a recess structure.

Career Highlights

Hea Cheon Kim is affiliated with the Electronics and Telecommunications Research Institute, where he continues to innovate and contribute to the field of electronics. His work is characterized by a focus on improving device performance and manufacturing processes.

Collaborations

Kim has collaborated with notable colleagues, including Jong Won Lim and Jae Kyoung Mun, further enhancing the research and development efforts within his field.

Conclusion

Hea Cheon Kim's contributions to the field of electronics, particularly in the area of field effect transistors, demonstrate his innovative spirit and commitment to advancing technology. His patents reflect a deep understanding of semiconductor design and manufacturing processes, making him a key figure in the industry.