Patent ID: 8507191
Filing Date: 2013-08-13
Classification: G03F,H01L,Y10T

Abstract:
1. A method of forming a patterned, silicon-enriched developable antireflective material, comprising: forming a silicon-enriched developable antireflective composition soluble in a solvent and comprising a silicon-enriched polymer and a crosslinking agent; reacting the silicon-enriched polymer and the crosslinking agent to form a silicon-enriched developable antireflective material insoluble in the solvent; forming a positive-tone photosensitive material over the silicon-enriched developable antireflective material; exposing regions of the positive-tone photosensitive material to radiation to decouple underlying regions of the silicon-enriched developable antireflective material and render the underlying regions of the silicon-enriched developable antireflective material soluble in the solvent; and removing the exposed regions of the positive-tone photosensitive material and the underlying regions of the silicon-enriched developable antireflective material.