Chumeng Zheng

Title: Chumeng Zheng: Innovator in Overlay Control Technology

Introduction

Chumeng Zheng is a notable inventor based in San Jose, California. He has made significant contributions to the field of overlay control technology, particularly in the semiconductor industry. His innovative work has led to the development of a patented method that enhances the precision of wafer patterning.

Latest Patents

Chumeng Zheng holds a patent for "Baseline overlay control with residual noise reduction." This patent describes systems, methods, and computer program products that utilize a vector by vector subtraction method per wafer. The process involves exposing a first layer to form a pattern image on a wafer and measuring the overlay data of alignment registration marks at multiple locations. The data is then reworked and remeasured to provide an overlay difference, which is converted into a pre-correction factor applied to the exposure of a second layer.

Career Highlights

Chumeng Zheng is currently employed at International Business Machines Corporation (IBM), where he continues to innovate in the field of semiconductor technology. His work has been instrumental in improving the accuracy of overlay control, which is crucial for the manufacturing of integrated circuits.

Collaborations

Chumeng has collaborated with notable colleagues, including Daniel A Corliss and Scott David Halle. These collaborations have further enhanced the development of advanced technologies in the semiconductor sector.

Conclusion

Chumeng Zheng's contributions to overlay control technology exemplify the impact of innovative thinking in the semiconductor industry. His patented methods are paving the way for more precise manufacturing processes, showcasing the importance of continuous innovation in technology.