A resist underlayer film composition is excellent in resistance to a basic hydrogen peroxide aqueous solution in gap-filling and planarization characteristics having a dry etching characteristic; a patterning process and method for forming a resist underlayer film, wherein the resist underlayer film composition is used for a multilayer resist method, the composition comprising: (a1) one, or two or more, of a compound represented by following general formula (x); and (b) an organic solvent,
wherein n01 represents an integer of 1 to 10; when n01 is 2, w represents a sulfinyl group, a sulfonyl group, an ether group, or a divalent organic group having 2 to 50 carbon atoms; when n01 is an integer other than 2, w represents an n01-valent organic group having 2 to 50 carbon atoms; and y represents a single bond or divalent connecting group having 1 to 10 carbon atoms and optionally having an oxygen atom.
一种抗蚀剂底层薄膜组合物,在间隙填充和平面化特性方面对碱性
过氧化氢水溶液具有优异的抗性,具有干蚀刻特性;一种形成抗蚀剂底层薄膜的图案化工艺和方法,其中抗蚀剂底层薄膜组合物用于多层抗蚀剂方法,该组合物包括:(a1) 由以下通式(x)表示的一种或两种以上化合物;以及 (b) 有机溶剂、
其中,n01 代表 1 至 10 的整数;当 n01 为 2 时,w 代表具有 2 至 50 个碳原子的亚磺酰基、磺酰基、醚基或二价有机基团;当 n01 为 2 以外的整数时,w 代表具有 2 至 50 个碳原子的 n01 价有机基团;以及 y 代表具有 1 至 10 个碳原子并可选择具有氧原子的单键或二价连接基团。