Lionel Legouezigou

Title: The Innovative Contributions of Lionel Legouezigou

Introduction

Lionel Legouezigou is a notable inventor based in Le Val St Germain, France. He has made significant contributions to the field of semiconductor technology. His work focuses on methods that enhance the precision and efficiency of optical waveguide alignment.

Latest Patents

Lionel Legouezigou holds a patent for a method of making a mark on a wafer, specifically a semiconductor wafer. This innovative technique is designed for end-to-end alignment of two optical waveguides, one of which is embedded in the semiconductor wafer. The patent describes a longitudinal lateral mark created by the flank of a valley etched into the wafer, which is self-aligned to the strip formed beforehand. To achieve this self-alignment, a protection layer is deposited in the area where the mark is to be formed. A register layer is then placed on top of the protection layer, followed by a photosensitive resin. The process involves selective etching to eliminate the register layer at the valley location of the mark, followed by further etching to create the lateral channels of the strip and the valley of the mark.

Career Highlights

Lionel Legouezigou is associated with Alcatel N.V., where he has contributed to various projects in semiconductor technology. His innovative approach has led to advancements in the field, particularly in optical waveguide alignment.

Collaborations

Throughout his career, Lionel has worked alongside talented colleagues such as Franck Mallecot and Claude Artigue. Their collaborative efforts have furthered the development of cutting-edge technologies in the semiconductor industry.

Conclusion

Lionel Legouezigou's contributions to semiconductor technology, particularly through his patented methods, highlight his role as an influential inventor in the field. His work continues to impact the industry positively.