Yujun Deng

Title: **Innovations of Inventor Yujun Deng in Laser Technology**

Introduction

Yujun Deng is a distinguished inventor located in San Jose, CA, with an impressive portfolio of 16 patents. His contributions to the field of laser technology emphasize the innovation and advancement of inspection systems and methods, showcasing his dedication to enhancing optical applications.

Latest Patents

Yujun Deng’s most recent patents highlight his expertise in manipulating laser bandwidth and improving inspection systems. One innovative patent outlines a system and method for reducing the bandwidth of a laser. This design features a DUV laser that incorporates an optical bandwidth filtering device, directing different wavelength ranges into distinct portions of a frequency conversion chain. This methodology effectively reduces the bandwidth of the DUV laser output while preserving high conversion efficiency.

Another notable patent describes an optical inspection system utilizing sub-200 nm incident light to detect surface defects on objects. This system generates the light beam by combining two separate wavelengths—approximately 1109 nm and 234 nm. The optical system is designed with components that direct this light beam onto an object's surface and includes image relay optics to collect and relay both reflected and transmitted light to a sensor, capable of simultaneous detection.

Career Highlights

Throughout his career, Yujun Deng has made significant contributions to leading companies in the field of laser technology. He has worked with Kla-Tencor Corporation, where his innovations in optical inspection contributed to advancements in the industry. Additionally, his experience at Newport Corporation further solidified his reputation as a pioneer in laser technology and application.

Collaborations

Yujun’s innovative journey has also been marked by collaborations with notable professionals in his field. He has worked closely with Yung-Ho Alex Chuang and J Joseph Armstrong, sharing insights and enhancing the quality of inventions during their cooperative projects.

Conclusion

Yujun Deng stands out as an exemplary inventor whose patents not only advance the field of laser technology but also reflect his commitment to innovation. With a robust portfolio and a history of collaboration with industry leaders, Deng's work continues to inspire and drive progress in optical inspection systems. His contributions are invaluable as they pave the way for future advancements in the industry.