Peisheng Sheng

Title: Peisheng Sheng: Innovator in Micro-Valve Technology

Introduction

Peisheng Sheng is a notable inventor based in Wilmington, DE (US). He has made significant contributions to the field of micro-valve technology, holding a total of 2 patents. His work focuses on innovative methods for bonding materials and creating efficient micro-valve systems.

Latest Patents

One of Peisheng Sheng's latest patents is for a method of achieving a direct bond of steel at low temperatures. This invention is directed to a bonded product, such as a manifold for gas or liquid chromatographs, and outlines a method for making the same. The process involves contacting two or more steel sheets, heating them to a temperature substantially below their melting point, applying pressure, and then cooling the sheets. Notably, no intermediate foreign material is used in this bonding process, resulting in a strong, leak-free bond generated at temperatures as low as 1700°F (926.6°C). The bond is molecular in nature, evidenced by grains that grow from one sheet to another across the interface.

Another significant patent by Sheng involves high-temperature micro-machined valves. These micro-valves feature a diaphragm that can be positioned on or removed from a valve seat. The design includes supports and a cover that restricts the diaphragm's motion, reducing the risk of cracking. The micro-valves are made by anodically bonding the diaphragm to a seat substrate and the cover to the diaphragm, which also includes micro-injectors.

Career Highlights

Peisheng Sheng is currently employed at Agilent Technologies, Inc., where he continues to innovate in the field of micro-valve technology. His work has contributed to advancements in various applications, particularly in gas and liquid chromatography.

Collaborations

Throughout his career, Peisheng has collaborated with notable colleagues, including Richard P. White and Tak Kui Wang. These collaborations have further enhanced his research and development efforts in the field.

Conclusion

Peisheng Sheng is a distinguished inventor whose work in micro-valve technology and low-temperature bonding methods has made a significant impact in his field. His innovative patents and contributions continue to advance technology in various applications.