发明授权
US4957846A Radiation sensitive compound and mixtures with trinuclear novolak oligomer with o-naphthoquinone diazide sulfonyl group 失效
辐射敏感化合物与三核酚醛清漆低聚物与邻萘醌二叠氮磺酰基的混合物

Radiation sensitive compound and mixtures with trinuclear novolak
oligomer with o-naphthoquinone diazide sulfonyl group
摘要:
A trinuclear novolak oligomer of the formula (I): ##STR1## wherein each X is selected from the group consisting of hydroxyl group and halide group and Y is selected from the group consisting of a lower alkyl group having 1-4 carbon atoms and halogen atom.
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