Bruno Lichtenegger

Title: The Innovations of Bruno Lichtenegger

Introduction

Bruno Lichtenegger is a notable inventor based in Wohnsitz, Germany. He has made significant contributions to the field of semiconductor manufacturing, particularly in the polishing of silicon wafers. His innovative approach has led to the development of a unique process that enhances the quality of silicon wafers used in various electronic applications.

Latest Patents

Lichtenegger holds a patent for a process for the surface polishing of silicon wafers. This process involves the successive polishing of the silicon wafer on at least two different polishing plates covered with polishing cloth. It utilizes a continuous supply of alkaline polishing abrasive with SiO constituents. The method ensures that the amount of silicon removed during polishing on the first plate is significantly higher than on the second plate, with the overall amount of silicon removed not exceeding 1.5 micrometers. The process includes the addition of a polishing abrasive, a mixture of a polishing abrasive and at least one alcohol, and finally ultrapure water to the first polishing plate, while a similar mixture is added to the second plate.

Career Highlights

Bruno Lichtenegger is associated with Wacker Siltronic Gesellschaft für Halbleiter Materialien AG, a leading company in the semiconductor industry. His work at Wacker Siltronic has allowed him to apply his innovative ideas in a practical setting, contributing to advancements in semiconductor technology.

Collaborations

Throughout his career, Lichtenegger has collaborated with notable colleagues such as Guido Wenski and Thomas Buschhardt. These collaborations have fostered an environment of innovation and have led to the successful implementation of new technologies in the semiconductor field.

Conclusion

Bruno Lichtenegger's contributions to the polishing of silicon wafers exemplify the importance of innovation in the semiconductor industry. His patented process not only enhances the quality of silicon wafers but also showcases the collaborative spirit of inventors in advancing technology.