Location History:
- Berlin, DE (1987)
- Erlangen, DE (2002 - 2004)
Company Filing History:
Years Active: 1987-2004
Title: The Innovations of Harald Kuhn
Introduction
Harald Kuhn is a notable inventor based in Erlangen, Germany. He has made significant contributions to the field of materials science, particularly in the growth of silicon carbide (SiC) single crystals. With a total of 7 patents to his name, Kuhn's work has advanced the understanding and application of SiC in various industries.
Latest Patents
Kuhn's latest patents include a method for the sublimation growth of an SiC single crystal, which involves heating under growth pressure. This innovative method describes a process where a crucible holding a stock of solid SiC and an SiC seed crystal is evacuated during a starting phase. The crucible is then filled with an inert gas until a growth pressure is reached. Additionally, the crucible is initially heated to an intermediate temperature and then heated to a growth temperature at a controlled rate. This approach allows for controlled seeding on the SiC seed crystal even during the heat-up phase.
Another significant patent is a device featuring a foil-lined crucible for the sublimation growth of an SiC single crystal. This device includes a crucible with a storage area for solid SiC and a crystal area where the SiC single crystal grows. A heater device is arranged outside the crucible, and the crucible is lined with a foil made from materials such as tantalum or tungsten. This design prevents reactions between the aggressive components of the SiC gas phase and the crucible wall.
Career Highlights
Harald Kuhn is currently employed at Siemens Aktiengesellschaft, where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the efficiency and effectiveness of SiC crystal growth processes.
Collaborations
Kuhn has collaborated with notable colleagues, including Rene Stein and Johannes Voelkl. These partnerships have contributed to the advancement of his research and the successful implementation of his patented technologies.
Conclusion
Harald Kuhn's contributions to the field of materials science, particularly in the growth of silicon carbide single crystals, have made a significant impact. His innovative methods and devices continue to influence the industry and pave the way for future advancements.