Johannes Käppeler

Title: Innovations of Johannes Käppeler

Introduction

Johannes Käppeler is a notable inventor based in Würselen, Germany. He has made significant contributions to the field of chemical vapor deposition (CVD) technology. With a total of 2 patents, his work focuses on improving the efficiency and design of CVD reactors.

Latest Patents

Käppeler's latest patents include a CVD reactor with a substrate holder that is rotatably driven and mounted by a gas stream. This invention relates to a device for depositing layers, particularly crystalline layers, onto substrates. The device comprises a process chamber arranged in a reactor housing, where the floor includes at least one substrate holder that is rotatably driven by a gas flow. The substrate holder is disposed in a bearing cavity on a gas cushion, enhancing its stability and performance.

Another significant patent is a CVD reactor that features a reactor casing with a heated susceptor for one or several wafers. This reactor includes a fluid inlet unit with multiple openings facing the wafers, allowing moderately heated CVD media to enter. The design ensures that the fluid outlet, shaped like a disk, is heated by radiation from the susceptor, optimizing the temperature for effective media discharge.

Career Highlights

Johannes Käppeler is currently employed at Aixtron AG, a company renowned for its advancements in CVD technology. His work at Aixtron has positioned him as a key player in the development of innovative solutions for the semiconductor industry.

Collaborations

Käppeler collaborates with talented coworkers such as Holger Jürgensen and Marc Deschler. Their combined expertise contributes to the ongoing advancements in CVD technology and its applications.

Conclusion

Johannes Käppeler's contributions to the field of CVD technology through his patents and work at Aixtron AG highlight his role as an influential inventor. His innovations continue to shape the future of layer deposition technologies.