Jiuyi Cheng

Title: **Jiuyi Cheng: Innovator in Gas Flow Control and Leak Detection**

Introduction

Jiuyi Cheng is a notable inventor based in Milpitas, CA, recognized for his contributions to the fields of gas flow control and leak detection technologies. With a total of two patents to his name, Cheng has demonstrated his expertise in developing innovative solutions that enhance efficiency and safety in industrial processes.

Latest Patents

Cheng's most recent patents showcase his ingenuity in addressing critical challenges in processing systems. His first patent, titled **Method and Apparatus for Gas Flow Control**, involves an apparatus designed to regulate gas flow utilizing a controllable valve. This invention employs a mechanism that measures the valve's position and upstream gas pressure, using a first lookup table to accurately determine the flow rate through the valve. Additionally, it features a flow restrictor upstream that employs temperature and pressure measurements to derive the flow rate using a second lookup table.

His second patent, **System and Method for Vacuum Chamber Leak Detection**, addresses the detection of leaks in processing chambers. This innovative system utilizes an optical emission spectroscopy (OES) sensor to monitor light emissions from plasma within the chamber. The technology can detect both directly introduced gases and 'virtual leaks' caused by outgassing, processing the spectral data through a processor that computes a leak detection index. When the index exceeds a predetermined threshold, it triggers a notification indicating a potential leak.

Career Highlights

Jiuyi Cheng is currently employed at Pivotal Systems Corporation, a company recognized for its cutting-edge technologies in gas flow control and related sectors. His work directly contributes to enhancing operational safety and performance in industries reliant on precise gas management.

Collaborations

Throughout his career, Cheng has collaborated with prominent professionals such as Joseph R Monkowski and Sherk Chung. These partnerships underscore the importance of teamwork in driving innovation and addressing complex engineering challenges.

Conclusion

Jiuyi Cheng stands out as an influential inventor whose patents pave the way for advancements in gas flow and leak detection technologies. His dedication to innovation not only enhances the capabilities of the processing industry but also promises to drive further developments in related fields. Cheng's contributions exemplify the vital role inventors play in shaping a safer and more efficient technological landscape.