Weihua Li

Title: Innovations of Weihua Li in Thin Film Material Testing

Introduction

Weihua Li is a notable inventor based in Nanjing, China. He has made significant contributions to the field of material testing, particularly focusing on thin film materials. His innovative approach has led to the development of a unique testing structure that enhances the accuracy of residual stress measurements.

Latest Patents

Weihua Li holds a patent for a "Thin film material residual stress testing structure and method." This invention comprises two groups of structures. The first group includes an electrostatic driven polysilicon cantilever beam, an asymmetrical cross beam made of thin film material to be tested, and a double-end fixed support beam made of the same material. The second group mirrors the first but omits the fixed support beam. The method involves separating the loading drive part of force from the testing structure, designing the bending deflection based on geometrical parameters, and calculating the residual stress using the extracted force and deflection.

Career Highlights

Weihua Li is affiliated with Southeast University, where he continues to advance research in material science. His work has garnered attention for its practical applications in various industries, particularly in improving the reliability of thin film materials.

Collaborations

He collaborates with esteemed colleagues such as Lei Wang and Lu Zhang, contributing to a dynamic research environment that fosters innovation and development in material testing technologies.

Conclusion

Weihua Li's contributions to the field of thin film material testing exemplify the importance of innovation in engineering and material science. His patented methods and structures pave the way for more accurate testing and analysis, ultimately benefiting various technological applications.