Aixtron SE is a German technology company headquartered in Herzogenrath, Germany. Its shares are listed on the Frankfurt Stock Exchange and it is a constituent of the MDAX and TecDAX indices. The company develops various types of chemical vapor deposition equipment for electronic and optoelectronic applications based on III-V compound semiconductors and organic semiconductors. Aixtron is a leading manufacturer of metalorganic chemical vapor deposition systems and also produces plasma-enhanced chemical vapor deposition equipment for the production of carbon nanotubes and other nanostructures. Wikipedia