Positive resist composition, method of forming resist pattern, and polymeric compound
申请人:TOKYO OHKA KOGYO CO., LTD.
公开号:EP2093213A1
公开(公告)日:2009-08-26
There is provided a positive resist composition, including a base component (A) which exhibits increased solubility in an alkali developing solution under action of an acid, and an acid generator component (B) which generates an acid upon exposure, wherein the base component (A) includes a polymeric compound (A1) containing a structural unit (a0) represented by the general formula (a0-1) shown below:
wherein R1 represents a hydrogen atom, a lower alkyl group or a halogenated lower alkyl group; A represents a bivalent linking group; B represents a bivalent linking group; and R2 represents an acid dissociable, dissolution inhibiting group.
提供了一种阳离子抗蚀剂组合物,包括在酸的作用下在碱显影液中溶解度增加的碱组分(A),以及在曝光时产生酸的酸发生组分(B),其中碱组分(A)包括一种聚合物化合物(A1),该化合物含有由下图所示通式(a0-1)表示的结构单元(a0):
其中 R1 代表氢原子、低级烷基或卤代低级烷基;A 代表二价连接基团;B 代表二价连接基团;R2 代表可酸解的溶解抑制基团。