Patent ID: 7175974
Filing Date: 2007-02-13
Classification: C09D,G03F,Y10S,Y10T

Abstract:
1. A method for forming a photoresist pattern comprising the steps of: applying an organic anti-reflective coating composition comprising a cross-linking agent, a light-absorbing agent having a high absorbency within a wavelength range of an exposure light source, a thermal acid generator, an organic solvent, and a polydimethylsiloxane polymer onto the surface of a layer to be etched, to form a coating; conducting a baking process on the coating to generate cross-linking therein and form an organic anti-reflective film; applying a photosensitive material onto the antireflective film to form a photoresist; exposing the photoresist to a light source to form an exposed photoresist, and, developing the exposed photoresist to form the photoresist pattern.