Jae Han Cha

Title: Innovations by Jae Han Cha in Transistor Technology

Introduction

Jae Han Cha is a notable inventor based in Singapore, recognized for his contributions to the field of transistor technology. He holds 2 patents that focus on enhancing the performance and efficiency of transistors. His work is pivotal in addressing challenges related to gate induced drain leakage and impact ionization in multi-voltage transistors.

Latest Patents

One of his latest patents is titled "Transistor with source-drain silicide pullback." This invention relates to multi-voltage (MV) transistors that achieve reduced gate induced drain leakage (GIDL) and impact ionization without increasing the device pitch. The design incorporates a low voltage (LV) device region and a medium voltage (MV) device region on a substrate. Non-extended spacers are placed on the sidewalls of the LV gate, while extended L-shaped spacers are used on the MV gate sidewalls. This innovative approach effectively displaces the heavily doped regions of the MV transistor, thereby minimizing GIDL and impact ionization.

Another significant patent by Jae Han Cha is focused on methods for fabricating integrated circuits with low, medium, and high voltage transistors on an extremely thin silicon-on-insulator substrate. This method involves dividing the substrate into various voltage regions and forming field effect transistors (FETs) accordingly. The channel, source, and drain structures of the low voltage FET are created in an upper silicon layer, while those of the medium and high voltage FETs are formed partially below this layer.

Career Highlights

Jae Han Cha is currently employed at Globalfoundries Singapore Pte. Ltd., where he continues to innovate in the semiconductor industry. His expertise in transistor technology has made significant impacts on the development of efficient electronic devices.

Collaborations

Throughout his career, Jae Han Cha has collaborated with talented individuals such as Chia Ching Yeo and Kiok Boone Elgin Quek. These collaborations have fostered a creative environment that enhances innovation and problem-solving in their projects.

Conclusion

Jae Han Cha's contributions to transistor technology through his patents demonstrate his commitment to advancing the field. His work not only addresses critical challenges in semiconductor design but also paves the way for future innovations in electronic devices.