Yen-Hui Joseph Ku

Title: Innovations of Yen-Hui Joseph Ku

Introduction

Yen-Hui Joseph Ku is a notable inventor based in Cupertino, CA (US). He has made significant contributions to the field of microelectronics, holding a total of 3 patents. His work focuses on advanced processes and structures that enhance the performance and reliability of integrated circuits.

Latest Patents

One of his latest patents is a process for forming a MOS device in an integrated circuit structure. This innovative process is capable of forming shallow source/drain regions in a silicon substrate and a doped gate electrode. It involves the implantation of cobalt silicide contacts of uniform thickness, followed by diffusion of the dopant into the substrate to create the desired source/drain regions. The process includes several steps, such as depositing a layer of cobalt, forming a capping layer, and annealing the structure at varying temperatures to achieve high-temperature cobalt silicide. The final steps involve implanting dopants and heating the structure to diffuse the dopants into the substrate and polysilicon gate electrode.

Another significant patent involves an input-output (I/O) structure with a capacitively triggered thyristor. This structure includes a microelectronic device connected between a contact pad and a reference potential, along with a thyristor device that protects the microelectronic device from electrostatic discharge. The thyristor features a PNPN structure and an electrode that induces an electric field, allowing for lower voltage triggering. This innovative design enhances the reliability of microelectronic devices in various applications.

Career Highlights

Yen-Hui Joseph Ku has worked at LSI Logic Corporation, where he has contributed to various projects and innovations in microelectronics. His expertise in semiconductor technology has positioned him as a valuable asset in the industry.

Collaborations

He has collaborated with notable coworkers, including Rosario J Consiglio and Jiunn-Yann Tsai, who have also made significant contributions to the field.

Conclusion

Yen-Hui Joseph Ku's innovative work in microelectronics, particularly in the development of advanced processes and structures, has made a lasting impact on the industry. His patents reflect his commitment to enhancing the performance and reliability of integrated circuits.