申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:EP1403295A2
公开(公告)日:2004-03-31
Novel ester compounds having formula (1) wherein A1 is a polymerizable functional group having a double bond, A2 is furandiyl, tetrahydrofurandiyl or oxanorbornanediyl, R1 and R2 each are a monovalent hydrocarbon group, or R1 and R2 may bond together to form an aliphatic hydrocarbon ring with the carbon atom, and R3 is hydrogen or a monovalent hydrocarbon group which may contain a hetero atom are polymerizable into polymers. Resist compositions comprising the polymers are sensitive to high-energy radiation, have an improved sensitivity, resolution, and etching resistance, and lend themselves to micropatterning with electron beams or deep-UV rays.
具有式(1)的新型酯化合物可聚合成聚合物,式(1)中 A1 是具有双键的可聚合官能团,A2 是呋喃二基、四氢呋喃二基或氧降冰片二基,R1 和 R2 各为一价烃基,或 R1 和 R2 可键合在一起与碳原子形成脂族烃环,R3 是氢或可包含杂原子的一价烃基。包含这些聚合物的抗蚀剂组合物对高能辐射敏感,具有更高的灵敏度、分辨率和抗蚀刻性,并适合使用电子束或深紫外线进行微图案化。