A resist underlayer film material used in multilayer resist method contains (A) compound shown by following general formula (1), and (B) organic solvent, where X independently represents monovalent organic group shown by following general formula (2); W contains an “m” number of partial structures each independently shown by following formula (3); “m” and “n” each represent an integer of 1 to 10; broken lines represent bonding arms; Z represents aromatic group; A represents single bond or —O—(CH
2
)
p
—; “k” represents integer of 1 to 5; “p” represents integer of 1 to 10; R
01
represents hydrogen atom or monovalent organic group having 1 to 10 carbon atoms. Material is capable of forming resist underlayer film excellent in planarizing property in fine patterning process by multilayer resist method in semiconductor-device manufacturing process; and patterning processes and methods for forming resist underlayer film use material.
多层光刻法中使用的抗蚀底层膜材料包含以下通式(1)所示的化合物(A)和有机溶剂(B),其中X独立地表示由以下通式(2)所示的一价有机基团;W包含“m”个部分结构,每个部分结构都独立地由以下式(3)所示;“m”和“n”分别表示1到10的整数;断裂的线表示连接臂;Z表示芳香基团;A表示单键或—O—(
CH2)p—;“k”表示1到5的整数;“p”表示1到10的整数;R01表示氢原子或具有1到10个碳原子的一价有机基团。该材料能够形成在半导体器件制造过程中通过多层光刻法具有平坦化性能的抗蚀底层膜,以及用于形成抗蚀底层膜的图案化过程和方法。