A silsesquioxane resin, photoresist composition comprising the silsesquioxane resin and a photoacid generator, etching mask composition comprising the silsesquioxane resin, products prepared therefrom, methods of making and using same, and manufactured articles and semiconductor devices containing same. The silsesquioxane resin comprises silicon-bonded hydrogen atom T-units and T-units having a silicon-bonded group of formula —CH2CH2CH2CO2C(R1a)3 or —CH(CH3)CH2CO2C(R1a)3, wherein each R1a is independently an unsubstituted (C1-C2)alkyl.
一种含氢
硅sesquioxane
树脂,包括该含氢
硅sesquioxane
树脂和光酸产生剂的光刻胶组合物,包括该含氢
硅sesquioxane
树脂的蚀刻掩模组合物,由其制备的产品,制备和使用该组合物的方法,以及包含相同材料的制造物品和半导体器件。该含氢
硅sesquioxane
树脂包含
硅结合的氢原子T单元和具有通式为—CH2CH2CH2CO2C(R1a)3或—CH(
CH3)CH2CO2C(R1a)3的
硅结合基团的T单元,其中每个R1a独立地为未被取代的(C1-C2)烷基。