Ivo Croessmann

Title: Ivo Croessmann: Innovator in High Purity Polycrystalline Silicon Production

Introduction

Ivo Croessmann is a notable inventor based in Hamburg, Germany. He has made significant contributions to the field of materials science, particularly in the production of high purity polycrystalline silicon. His innovative methods have implications for various industries, including electronics and solar energy.

Latest Patents

Ivo Croessmann holds a patent for a "Method and device for producing high purity polycrystalline silicon with a reduced dopant content." This patent describes a process in which a U-shaped silicon carrier body is fastened in an open deposition reactor. The reactor is hermetically sealed, and the carrier body is heated using electrical current. A silicon-containing reaction gas and hydrogen are introduced into the reactor, allowing silicon from the reaction gas to deposit on the carrier body. As the diameter of the carrier body increases, waste gas is removed through a discharge line. Once the desired diameter of the polysilicon rod is achieved, deposition is terminated, and the carrier body is cooled to room temperature. The reactor is then opened, and the carrier body is removed, allowing for the introduction of a second U-shaped silicon carrier body. An inert gas is fed into the reactor during this process to facilitate the deposition of silicon on the second carrier body.

Career Highlights

Ivo Croessmann is associated with Wacker Chemie AG, a leading company in the chemical industry. His work at Wacker Chemie AG has allowed him to focus on advancing technologies related to silicon production. His innovative approach has positioned him as a key figure in the development of high purity silicon materials.

Collaborations

Ivo has collaborated with notable colleagues such as Thomas Altmann and Hans Peter Sendlinger. These collaborations have contributed to the advancement of research and development in the field of silicon production.

Conclusion

Ivo Croessmann's contributions to the field of high purity polycrystalline silicon production highlight his innovative spirit and dedication to advancing technology. His patent and work at Wacker Chemie AG demonstrate the importance of innovation in materials science.