Roth & Rau AG is by market share one of the world's leading suppliers of plasma process systems for the photovoltaics industry. The company also supplies components and process systems based on plasma and ion beam technology for other sectors.
The company manufactures ZERODUR, an inorganic, non-porous glass ceramic, characterized by a phase of evenly distributed nano-crystals within a residual glass phase. ZERODUR contains about 70-78 weight percent crystalline phase with a high quartz structure. This crystalline phase has a negative linear thermal expansion, while that of the glass phase is positive. The crystals have an average size of about 50 nm.
A member of the AMETEK Materials Analysis Division, SPECTRO is one of the worldwide leading suppliers of analytical instruments, employing optical emission and X-ray fluorescence spectrometry technology, used for the elemental analysis of materials in industry, research and academia.
Manufactures micro and nano structured products for many different high-tech applications such as display technology, micro-optics, micro-electronics/semiconductors, biotechnology, fluid technology and micro actuator technology.
TETRA develops, manufactures and distributes systems and components of sensors, robotics and automation. Our product portfolio ranges from highly specialized test and production systems for micro and nano technology to lightweight robotic systems for automation of sensitive production and service processes.