Patent ID: 8487411

Claim:
A double patterned semiconductor structure comprising: a first patterned and cured low-k structure located on a first portion of an antireflective coating; and a second patterned and cured low-k structure located on a second portion of said antireflective coating, wherein said second patterned and cured low-k structure is spaced apart from said first patterned and cured low-k dielectric structure, said inorganic antireflective coating comprising (i) a material having elements of M, C and H, wherein M is at least one of the elements of Si, Ge, B, Sn, Fe, Ta, Ti, Ni, Hf and La, or (ii) a polymer that has at least one monomer unit having the formula M-R A , wherein M is at least one of the elements of Si, Ge, B, Sn, Fe, Ta, Ti, Ni, Hf and La, and R A is a chromophore, and said first and said second patterned and cured low-k structures comprise different patternable low-k material comprising a polymer, a copolymer, a blend including at least two of any combination of polymers and/or copolymers, wherein the polymers include one monomer and the copolymers include at least two monomers and wherein the monomers of the polymers and the momoners of the copolymers are selected from a siloxane, silane, carbosilane, oxycarbosilane, silsesquioxane, alkyltrialkoxysilane, tetra-alkoxysilane, unsaturated alkyl substituted silsesquioxane, unsaturated alkyl substituted siloxane, unsaturated alkyl substituted silane, an unsaturated alkyl substituted carbosilane, unsaturated alkyl substituted oxycarbosilane, carbosilane substituted silsesquioxane, carbosilane substituted siloxane, carbosilane substituted silane, carbosilane substituted carbosilane, carbosilane substituted oxycarbosilane, oxycarbosilane substituted silsesquioxane, oxycarbosilane substituted siloxane, oxycarbosilane substituted silane, oxycarbosilane substituted carbosilane, and oxycarbosilane substituted oxycarbosilane.