Roth & Rau AG has acquired Ortner cleanroom logistic systems GmbH for an undisclosed sum in an effort to meet increasing demand from customers to support crystalline and thin-film equipment servicing, spare parts and other support activities. Ortner, based in Dresden, is a specialist in tool installations and automation company. Ortner’s existing management and skilled workforce will continue to operate the business as a subsidiary of Roth & Rau.