Patent ID: 6537724
Filing Date: 2003-03-25
Classification: G03F,Y10S

Abstract:
A photoresist composition comprising a photoresist resin, a photoacid generator and an organic solvent, wherein said photoresist resin comprises:(a) a first copolymer derived from a first copolymer monomer comprising a compound of the formula: â€ƒor mixtures thereof, and (b) a second copolymer derived from a second copolymer monomer comprising a compound of the formula: â€ƒor mixtures thereof wherein at least one of said first or second copolymer monomer further comprises a cross-linking monomer of the formula: whereineach R2 is independently H, or optionally substituted linear or branched (C1-C10) alkyl or aryl; R8 is H or methyl; R17 is an acid labile protecting group; R and Râ€² are independently optionally substituted linear or branched (C0-C10) alkylene; x and y are independently 1 or 2; R1 is H or alkyl; R3, R4, R5 and R6 are independently H, or optionally substituted or linear or branched (C1-C10) alkyl or aryl; and n is an integer from 1 to 5.