Patent ID: 6555287
Filing Date: 2003-04-29
Classification: C07C,C07D,G03F

Abstract:
In a curable composition for use during microlithographic processes, said composition comprising a polymer binder dissolved in a solvent system, the improvement which comprises: a light attenuating compound selected from the group consisting of wherein:each cyclic group is an aromatic group; each R1 is individually selected from the group consisting of â€”OH, â€”COOH, â€”NH2, â€”COORâ€², â€”CH&boxH;CH2, and epoxy groups, where Râ€² is an alkyl group; and each R2 is individually selected from the group consisting of hydrogen, alkyls, heteroalkyls, aryls, heteroaryls, ethers, thioethers, carboxylates, cyanos, halogens, Râ€³â€”C&boxH;Nâ€”, Râ€³â€”N&boxH;Nâ€², where Râ€³ is hydrogen or an alkyl group, dialkylaminos, diarylaminos, and one of the following: â€ƒor x=0 or 1, wherein, * indicates the point of attachment of R2 to the cyclic group, and in Structure A:EWG is selected from the group consisting of carbonyls, cyanos, iminos, carboxylic acids, carboxylic esters, carboxamidos, carboximidos, and sulfonyls; and R3 is selected from the group consisting of hydrogen, alkyls, heteroalkyls, aryls, heteroaryls, carbonyls, cyanos, iminos, carboxylic acids, carboxylic esters, carboxamidos, carboximidos, and sulfonyls; and wherein, in structure B, EWG and R3 are selected from the group consisting of carbonyls, cyanos, iminos, carboxylic acids, carboxylic esters, carboxamidos, carboximidos, and sulfonyls.