Jean Boulanger

Title: Innovations by Jean Boulanger

Introduction

Jean Boulanger is an accomplished inventor based in Saint Ismier, France. He has made significant contributions to the field of semiconductor technology. His innovative approach has led to the development of a unique method for inspecting transparent substrates.

Latest Patents

Boulanger holds a patent for a method and system for discriminating defects present on the frontside from defects present on the backside of a transparent substrate. This method involves disposing the substrate in an inspection system where first and second light beams intersect at a measurement spot on the frontside of the substrate. The relative movement of the substrate and measurement spot is controlled to maintain a reference plane tangential to the measurement path. A first pattern is identified in a measurement signal, which corresponds to light scattered by a particle on the backside of the substrate. This pattern presents two intensity peaks separated by a determined interval, which corresponds to the time necessary for the defect to be moved over the distance separating two illumination spots on the backside of the substrate. Boulanger's patent represents a significant advancement in the inspection of transparent materials.

Career Highlights

Jean Boulanger is currently associated with Unity Semiconductor Corporation, where he continues to innovate and develop new technologies. His work focuses on enhancing the efficiency and accuracy of semiconductor manufacturing processes. Boulanger's expertise in defect detection has positioned him as a key player in the industry.

Collaborations

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Conclusion

Jean Boulanger's contributions to the field of semiconductor technology through his innovative patent demonstrate his commitment to advancing the industry. His work continues to influence the methods used in inspecting transparent substrates, showcasing the importance of innovation in technology.