A radiation-sensitive resin composition comprising (A) a photoacid generator such as 2,4,6-trimethylphenyldiphenylsulfonium 2,4-difluorobenzenesulfonate or 2,4,6-trimethylphenyldiphenylsulfonium 4-trifluoromethylbenzenesulfonate and (B) a resin having an acetal structure typified by a poly(p-hydroxystyrene) resin in which a part of hydrogen atoms of phenolic hydroxyl groups have been replaced by 1-ethoxyethyl groups, 1-ethoxyethyl groups and t-butoxycarbonyl groups, or 1-ethoxyethyl groups and t-butyl groups. The resin composition is sensitive to deep ultraviolet rays and charged particles such as electron beams, exhibits excellent resolution performance and pattern shape-forming capability, and suppresses a nano-edge roughness phenomenon to a minimal extent.
一种辐射敏感
树脂组合物,包括(A)光酸发生器,如 2,4,6-三甲基二苯基锍 2,4-二
氟苯磺酸盐或 2,4、(B) 具有
缩醛结构的
树脂,例如聚(对羟基
苯乙烯)
树脂,其中
酚羟基的部分氢原子被
1-乙氧基乙基、
1-乙氧基乙基和叔丁氧基羰基或
1-乙氧基乙基和叔丁基取代。这种
树脂组合物对深紫外线和带电粒子(如电子束)敏感,具有优异的分辨性能和图案成型能力,并能在最小程度上抑制纳米边缘粗糙度现象。