Photography by Manuel Schönfeld
Our Team

Norbert Witz-Haszler
CEO

Dr. Roman Bek
CTO

Priscilla Ürek
Administration & Marketing

Michael Scharwaechter
Laser Design

Matthias Seibold
Back-End Processes

Marco Werner
Front-End Processes

Michael Zimmer
Process Development

Sergej Vollmer
Semiconductor Epitaxy

Patrick Pietrantuono
Quality Assurance
Stuttgart
PRODUCTION & DEVELOPMENT
Universität Stuttgart
Allmandring 3
70569 Stuttgart
- +49 (0) 711 685 69849
- info@21semiconductors.com
Neckartenzlingen
ADMINISTRATION
Twenty-One Semiconductors GmbH
Kiefernweg 4
72654 Neckartenzlingen