Location History:
- Soest-Deiringsen, DE (2015)
- Soest, DE (2007 - 2017)
Company Filing History:
2 out of 5 
1 out of 1 
1 out of 72 
Years Active: 2007-2017
Title: Wilfried Vollmar: Innovator in Silicon Production Technologies
Introduction
Wilfried Vollmar is a notable inventor based in Soest, Germany, recognized for his contributions to the field of silicon production. With a total of six patents to his name, Vollmar has developed innovative methods and systems that enhance the efficiency and effectiveness of silicon rod ignition.
Latest Patents
Vollmar's latest patents include a cold filament ignition system and a method for igniting silicon rods outside a CVD-reactor. The cold filament ignition system involves applying an output voltage to one or more filaments using a transformer. This method also includes supplying a current to a primary winding of the transformer via a choke, which limits the current to a predetermined threshold. This combination allows for the generation of a specific output range necessary for igniting the filaments. The second patent describes a method and device for igniting silicon rods outside a CVD-reactor. In this system, a silicon rod is placed inside a chamber of an ignition device, where contact electrodes apply a high voltage to initiate current flow and ignite the rod. This innovation facilitates a new ignition process for the depositing process inside a CVD-reactor.
Career Highlights
Throughout his career, Wilfried Vollmar has worked with several companies, including Sitec GmbH and AEG SVS Power Supply Systems GmbH. His experience in these organizations has contributed to his expertise in developing advanced