RESIST UNDERLAYER FILM MATERIAL, PATTERNING PROCESS, AND METHOD FOR FORMING RESIST UNDERLAYER FILM
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20210397092A1
公开(公告)日:2021-12-23
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.