Patent ID: 6936405

Claim:
A method of forming a precursor for use in manufacturing integrated circuits comprising the steps of: providing a quantity of an antireflective compound and a substrate having a surface onto which said compound is to be applied, said antireflective compound having the formula wherein: each R is individually selected from the group consisting of alkyl groups; and each X is individually selected from the group consisting of hydrogen, the halogens, nitro groups, amino groups, acetamido groups, substituted and unsubstituted cyclic and heterocyclic groups, and COR 1 , where R 1 is selected from the group consisting of hydrogen, substituted and unsubstituted phenyl groups, substituted and unsubstituted alkyl groups, cinnamoyl, naphthoyl, acryloyl, methacryloyl, furoyl, and thiophenecarbonyl groups; and subjecting said antireflective compound to a chemical vapor deposition process so as to deposit said antireflective compound in a layer on said substrate surface, said antireflective compound layer deposited on said substrate surface absorbing at least about 90% of light at a wavelength of from about 150-500 mm.