概要（Overview）

PAS 5500 / 850 is a step-and-scan system manufactured by ASML. The PAS 5500/850D 248-nm Step-and-Scan system enables 110-nm mass production. Since the initial introduction of the PAS 5500/850, the PAS 5500/850 series have become the worldwide standard for both 110-nm logic and 110-nm memory applications. The PAS 5500/850D can be configured with a number of options that enable ultra low-k1 in manufacturing, extending application of the PAS 5500/850D well below 110 nm.