申请人:Tsuchihashi Toru
公开号:US20100248146A1
公开(公告)日:2010-09-30
A positive resist composition comprising (A) a resin which contains all of the repeating units represented by formulae (I) to (III), and becomes soluble in an alkali developer by the action of an acid, and (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation; and a pattern forming method using the composition. A represents a group capable of decomposing and leaving by the action of an acid, each R
1
independently represents hydrogen or a methyl group, R
2
represents a phenyl group or a cyclohexyl group, m represents 1 or 2, and n represents an integer of 0 to 2. By virtue of this construction, a resist composition ensuring high resolution, good pattern profile, sufficient depth of focus, little defects after development, and sufficiently high plasma etching resistance is provided.
一种正性光刻胶组合物,包括(A)一种树脂,该树脂包含由公式(I)至(III)表示的所有重复单元,并通过酸的作用在碱性显影剂中变得可溶,以及(B)一种能够在光刻射线或辐射照射下产生酸的化合物;以及使用该组合物的图案形成方法。其中,A表示通过酸的作用分解并离开的基团,每个R1独立地表示氢或甲基基团,R2表示苯基或环己基,m表示1或2,n表示0至2的整数。由于这种构造,提供了一种光刻胶组合物,确保高分辨率、良好的图案轮廓、足够的焦深度、开发后几乎没有缺陷以及足够高的等离子体刻蚀抗性。