Junqing Dong

Title: Junqing Dong - Innovator in Photolithography Technology

Introduction

Junqing Dong is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of photolithography, particularly in the measurement and calibration of photolithography tools. His innovative approach has led to the development of a unique method that enhances the precision of these essential devices.

Latest Patents

Junqing Dong holds a patent for a "Method for measuring and calibrating centroid of coarse stage of photolithography tool." This patent describes a method that involves measuring an offset of the centroid relative to a midpoint of the coarse stage. The process includes performing closed-loop controls on parameters of the three degrees of freedom: X, Y, and Rz. By converting these parameters into coordinates within the coordinate system of the coarse stage, the method estimates a range for the centroid and conducts a series of calibration calculations to ensure accuracy.

Career Highlights

Dong is currently employed at Shanghai Micro Electronics Equipment Co., Ltd., where he continues to advance his research and development efforts. His work focuses on improving the efficiency and accuracy of photolithography tools, which are critical in the semiconductor manufacturing process. With a patent portfolio that includes 1 patent, he has established himself as a key player in the industry.

Collaborations

One of his notable collaborators is Liwei Wu, with whom he has worked closely on various projects related to photolithography technology. Their combined expertise has contributed to the successful implementation of innovative solutions in their field.

Conclusion

Junqing Dong's contributions to photolithography technology exemplify the impact of innovation in the semiconductor industry. His patented methods and ongoing work at Shanghai Micro Electronics Equipment Co., Ltd. highlight his commitment to advancing technology and improving manufacturing processes.