Ching-Hui Ma

Title: Innovations by Ching-Hui Ma

Introduction

Ching-Hui Ma is a notable inventor based in Tainan, Taiwan. He has made significant contributions to the field of semiconductor manufacturing, holding a total of 3 patents. His work focuses on improving processes that enhance the efficiency and effectiveness of semiconductor fabrication.

Latest Patents

One of his latest patents is titled "In-situ discharge to avoid arcing during plasma etch processes." This method aims to reduce charge on a substrate to prevent arcing incidents during subsequent etch processes. The process involves fastening a patterned substrate to a chuck in a process chamber and performing a discharge process that includes three steps: coupling the chuck to a 0-volt connection, generating a plasma, and coupling the chuck to a high voltage connection. This method is compatible with both batch and single wafer processes and can be extended to etching low k dielectric layers with poor thermal conductivity.

Another significant patent is the "Method for removing polymeric residue contamination on semiconductor feature sidewalls." This method improves photolithographic patterning processes by avoiding undeveloped photoresist contamination. It includes providing a first semiconductor feature with an anisotropically etched opening, blanket depositing a polymeric passivation layer, and removing the polymeric passivation layer to eliminate residues from the sidewalls before further etching.

Career Highlights

Ching-Hui Ma is currently employed at Taiwan Semiconductor Manufacturing Company Limited, where he continues to innovate and contribute to advancements in semiconductor technology. His expertise in plasma etching and photolithography has positioned him as a valuable asset in the industry.

Collaborations

Throughout his career, Ching-Hui has collaborated with notable colleagues, including Jen-Cheng Liu and Hong-Ming Chen. These collaborations have fostered an environment of innovation and have led to the development of cutting-edge technologies in semiconductor manufacturing.

Conclusion

Ching-Hui Ma's contributions to the semiconductor industry through his patents and collaborative efforts highlight his role as an influential inventor. His innovative methods continue to shape the future of semiconductor manufacturing, ensuring advancements in technology.