Yu-Chun Liu

Title: Innovations of Yu-Chun Liu in Semiconductor Technology

Introduction

Yu-Chun Liu is a prominent inventor based in Miaoli County, Taiwan. He has made significant contributions to the field of semiconductor technology, particularly in the development of p-type field effect transistors. With a total of 3 patents to his name, Liu's work has advanced the capabilities of electronic devices.

Latest Patents

Liu's latest patents include a method for fabricating p-type field effect transistors (FETs). This method involves several steps, starting with the provision of a substrate and the formation of a pad layer. A well is created in the substrate, followed by an ion implantation process to implant germanium ions, forming a channel region. An anneal process is then conducted to divide the channel region into a top portion and a bottom portion. After the pad layer is removed, a gate structure is formed on the substrate, and a lightly doped drain (LDD) is created adjacent to the gate structure.

Another notable patent describes a p-type field effect transistor (pFET) that includes a gate structure on a substrate, with a channel region directly beneath it. The source/drain region is positioned adjacent to the gate structure. In this design, the channel region consists of a top portion and a bottom portion, where the concentration of germanium in the bottom portion is lower than that in the top portion, and both portions share equal depth.

Career Highlights

Yu-Chun Liu is currently employed at United Microelectronics Corporation, a leading company in the semiconductor industry. His work has been instrumental in enhancing the performance and efficiency of semiconductor devices.

Collaborations

Liu has collaborated with notable colleagues, including Shi-You Liu and Tsai-Yu Wen, contributing to various projects that push the boundaries of semiconductor technology.

Conclusion

Yu-Chun Liu's innovative work in the field of semiconductor technology, particularly in p-type field effect transistors, showcases his expertise and commitment to advancing electronic device capabilities. His contributions continue to influence the industry and inspire future innovations.