Location History:
- Pinki, Babites Pag., LV (2008)
- Burghausen, DE (2000 - 2010)
- Babites pag., LT (2010)
Company Filing History:
5 out of 301 
1 out of 42 
1 out of 832,761 Years Active: 2000-2010
Title: Innovations of Janis Virbulis in Silicon Crystal Production
Introduction
Janis Virbulis is a notable inventor based in Burghausen, Germany, recognized for his significant contributions to the field of semiconductor technology. With a total of seven patents to his name, he has made remarkable advancements in the production of silicon single crystals, which are essential for various electronic applications.
Latest Patents
Among his latest patents, Janis has developed a process and apparatus for producing a silicon single crystal. This innovative process involves pulling the single crystal from a silicon melt contained in a crucible with a diameter of at least 450 mm, while a heat shield is arranged above it. The single crystal being pulled has a diameter of at least 200 mm, and the silicon melt is influenced by a traveling magnetic field that exerts a vertically oriented force on the melt near the crucible wall.
Another significant patent focuses on a method and device for producing silicon single crystals and silicon semiconductor wafers with specific defect distributions. This method utilizes the Czochralski technique, where the single crystal is pulled from a melt held in a rotating crucible. The growth front receives deliberate heat supply, resulting in a silicon single crystal with controlled oxygen content and minimal radial concentration changes for boron or phosphorus. The semiconductor wafers produced may exhibit specific defect distributions, enhancing their performance in electronic applications.
Career Highlights
Janis Virbulis has worked with prominent companies in the semiconductor industry, including Siltronic AG and Wacker Siltronic Gesellschaft für Halbleitermaterialien AG. His experience in these organizations has contributed to his expertise in silicon crystal production and semiconductor technology.
Collaborations
Throughout his career, Janis has collaborated with esteemed colleagues such as Wilfried Von Ammon and Erich Tomzig. These partnerships have fostered innovation and advancements in the field of semiconductor materials.
Conclusion
Janis Virbulis stands out as a key inventor in the realm of silicon crystal production, with a strong portfolio of patents that reflect his innovative spirit and technical expertise. His contributions continue to influence the semiconductor industry and pave the way for future advancements.