Wei-Hua Liou

Title: Wei-Hua Liou: Innovator in Photoresist Stripping Processes

Introduction

Wei-Hua Liou is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of semiconductor processing, particularly in the area of photoresist stripping. His innovative approach has led to advancements that enhance the efficiency and effectiveness of substrate preparation.

Latest Patents

Wei-Hua Liou holds a patent for an "Implanted photoresist stripping process." This patent outlines processes for removing photoresist from a substrate after ion implantation. The method involves placing a substrate with bulk photoresist and a crust formed on it into a processing chamber. The process initiates a first strip process, during which an optical emission signal associated with plasma is accessed. An endpoint for the first strip process is identified based on this signal, leading to the termination of the process. Subsequently, a second strip process is initiated to effectively remove the photoresist from the substrate.

Career Highlights

Wei-Hua Liou is currently employed at Mattson Technology, Inc., where he continues to develop innovative solutions in semiconductor manufacturing. His work has been instrumental in improving the processes that are critical to the production of high-quality semiconductor devices.

Collaborations

Throughout his career, Wei-Hua has collaborated with esteemed colleagues such as Chun-Yen Kang and Vijay Matthew Vaniapura. These collaborations have fostered a productive environment for innovation and have contributed to the advancement of technology in their field.

Conclusion

Wei-Hua Liou's contributions to the field of photoresist stripping processes exemplify the impact of innovation in semiconductor technology. His patent and ongoing work at Mattson Technology, Inc. highlight his role as a key inventor in this critical area of research and development.