概要（Overview）

DUV Step and Scan The PAS 5500/750F DUV Step-and-Scan system enables 130-nm mass production using mature 248-nm KrF technology. It combines the imaging power of the improved 0.7 NA 4x reduction lens with the latest multi-spot innovations in the leveling system and the AERIAL II illumination technology including QUASAR, multipole illumination and optional multiple exposure capability. The system is equipped with both TTL alignment and ATHENA for improved alignment accuracy on backend process layers, providing a long term single machine overlay of less than 25 nm.