Patent ID: 7964332
Filing Date: 2011-06-21
Classification: G03F,Y10S

Abstract:
1. A method of forming a pattern of a semiconductor device, comprising: forming an anti-reflective coating layer on a substrate using a composition that includes a polymer, a photoacid generator, a cross-linking agent and a solvent, the polymer including a first repeating unit represented by Formula 1 and having a basic side group, a second repeating unit having a light-absorbing group, and a third repeating unit having a cross-linkable group; forming a photoresist film on the anti-reflective coating layer; exposing the photoresist film and the anti-reflective coating layer to light; and developing the photoresist film and the anti-reflective coating layer to form a photoresist pattern and an anti-reflective coating layer pattern on the substrate, wherein R