Patent ID: 8039202

Claim:
A process for forming a positive image comprising: a) forming a coating of the bottom photoimageable antireflective coating composition which is capable of being developed in an aqueous alkaline developer, wherein the antireflective coating composition comprises a polymer comprising at least a chromophore group and at least hydroxyl and/or a carboxyl group, a vinyl ether terminated crosslinking agent, and optionally, a photoacid generator on a substrate, further where the chromophore comprises a substituted or unsubstituted anthracyl group; b) baking the antireflective coating, c) providing a coating of a top photoresist layer over the bottom coating; d) imagewise exposing the photoresist and bottom coating layers to actinic radiation of same wavelength; e) post-exposure baking the photoresist and bottom coating layers on the substrate; and, f) developing the photoresist and bottom coating layers with an aqueous alkaline solution, thereby forming a pattern in the photoresist layer and the antireflective coating layer.