Chunshi Cui

Title: Innovations of Chunshi Cui

Introduction

Chunshi Cui is a notable inventor based in Santa Clara, CA (US). He holds a total of 6 patents that showcase his contributions to the field of plasma etching processes. His work has significantly advanced the technology used in semiconductor manufacturing.

Latest Patents

One of his latest patents is titled "Enhancement of silicon oxide etch rate and nitride selectivity using hexafluorobutadiene or other heavy perfluorocarbon." This invention focuses on a plasma etching process that selectively etches oxide over features with non-oxide compositions, such as silicon nitride. The use of hexafluorobutadiene combined with xenon enhances nitride selectivity while preventing etch stop. This chemistry is particularly beneficial for etching oxides with pre-formed holes and corners, reducing faceting during the oxide etch.

Another significant patent is the "Plasma reactor with spoke antenna having a VHF mode with the spokes in phase." This invention involves an RF power applicator that includes inner and outer conductive radial spokes. The design allows for effective electrical connection and enhances the performance of the plasma reactor, optimizing the fundamental resonant frequency.

Career Highlights

Chunshi Cui has worked with prominent companies in the semiconductor industry, including Applied Materials, Inc. His experience in these organizations has contributed to his expertise in plasma etching technologies.

Collaborations

Throughout his career, Chunshi has collaborated with notable professionals such as Michael Robert Rice and Kenneth S Collins. These collaborations have further enriched his work and innovations in the field.

Conclusion

Chunshi Cui's contributions to plasma etching technology through his patents and collaborations highlight his significant role as an inventor. His work continues to influence advancements in semiconductor manufacturing processes.