Location History:
- Altoetting, DE (2014)
- Mehring, DE (2017 - 2022)
Company Filing History:
Years Active: 2014-2022
Title: Dirk Weckesser: Innovator in Polycrystalline Silicon Production
Introduction
Dirk Weckesser is a notable inventor based in Mehring, Germany, recognized for his contributions to the field of polycrystalline silicon production. With a total of eight patents to his name, Weckesser has made significant advancements in the methods used to produce high-quality silicon granulate.
Latest Patents
One of his latest patents is a process for preparing polycrystalline silicon. This invention relates to a method for producing polycrystalline silicon granulate in a fluidized bed reactor. The method involves fluidizing silicon seed particles using a fluidizing gas in a heated fluidized bed. Elemental silicon is deposited by pyrolysis on the silicon seed particles through the addition of a reaction gas containing hydrogen and silane or halosilane, resulting in the formation of polycrystalline silicon granulate. In this continuous process, waste gas is discharged from the reactor, and hydrogen recovered from the waste gas is supplied back to the reactor as a circulating gas, which maintains a nitrogen content of less than 1000 ppmv. Additionally, his invention includes polycrystalline silicon granulate with a nitrogen content of less than 2 ppba. Another patent focuses on reducing contamination of fluidized bed-produced polycrystalline granules by phosphorus, utilizing seals and/or packings made from graphite containing less than 500 ppmw of phosphorus.
Career Highlights
Dirk Weckesser is associated with Wacker Chemie AG, a leading company in the chemical industry. His work at Wacker Chemie AG has allowed him to develop innovative processes that enhance the efficiency and quality of silicon production.
Collaborations
Throughout his career, Weckesser has collaborated with esteemed colleagues such as Harald Hertlein and Gerhard Forstpointner. These collaborations have contributed to the advancement of technology in the field of silicon production.
Conclusion
Dirk Weckesser's innovative work in the production of polycrystalline silicon has made a significant impact on the industry. His patents reflect a commitment to improving processes and reducing contamination, showcasing his expertise and dedication to innovation.