Doppelbelichtung für Negativlacksysteme unter Anwendung von chromlosen Phasenmasken

摘要

Mask set comprises a first chrome-less phase mask (1) for producing exposed and non-exposed regions on a photolaquer in a minimal structure and a second mask (2) for dividing the non-exposed regions by exposing partial regions of the regions non-exposed by the first phase mask. An Independent claim is also claimed for a process for producing structures acting as resist masks (3). Preferred Features: The second mask is a chrome-on-glass mask or a halftone mask. The exposed and non-exposed regions produced by the first mask are formed in straight lines. Both masks each have a number of individual structures.