Timothy Wee Hong Phua

Title: Innovations of Timothy Wee Hong Phua

Introduction

Timothy Wee Hong Phua is a notable inventor based in Singapore, SG. He has made significant contributions to the field of semiconductor technology. His innovative work focuses on improving the performance of metal T-gate transistors.

Latest Patents

Timothy holds a patent for "Selective oxide trimming to improve metal T-gate transistor." This process involves forming a FET using a replacement gate. A key feature of his invention is that the PMOS sacrificial gate is narrower than the NMOS sacrificial gate. The PMOS gate is implanted with Germanium to enhance the oxidation of the poly sacrificial gate, which forms PMOS spacers. These spacers serve as masks for the LDD implant. The design ensures that the space between the PLDD regions is larger than that between the NLDD regions, improving device performance by mitigating short channel effects for PMOS. Additionally, the oxidization of the sacrificial gates allows for trimming, extending the limitations of lithography. Another embodiment of his invention involves forming two metal gates with different work functions.

Career Highlights

Timothy is currently employed at Chartered Semiconductor Manufacturing Ltd, where he continues to innovate in semiconductor technology. His work has been instrumental in advancing the capabilities of transistors used in various electronic devices.

Collaborations

Timothy has collaborated with notable colleagues, including Kheng Chok Tee and Liang Choo Hsia. Their combined expertise has contributed to the success of various projects within the semiconductor industry.

Conclusion

Timothy Wee Hong Phua's contributions to semiconductor technology through his innovative patents demonstrate his commitment to advancing the field. His work not only enhances device performance but also pushes the boundaries of existing technologies.