摘要 |
A polymeric compound of the invention includes at least one monomer unit represented by the following formula (I); wherein R<SUP>a </SUP>is a hydrogen atom, a halogen atom, an alkyl group of 1 to 6 carbon atoms or an haloalkyl group of 1 to 6 carbon atoms; each of R<SUP>1 </SUP>and R<SUP>2 </SUP>is identical to or different from a hydrogen atom or a hydrocarbon group, provided that at least one of R<SUP>1 </SUP>and R<SUP>2 </SUP>is a hydrocarbon group; R<SUP>1 </SUP>and R<SUP>2 </SUP>may be bonded together to form a ring with an adjacent carbon atom; and each of R<SUP>3</SUP>, R<SUP>4</SUP>, R<SUP>5</SUP>, R<SUP>6</SUP>, R<SUP>7</SUP>, R<SUP>8 </SUP>and R<SUP>9 </SUP>is identical to or different from a hydrogen atom or a hydrocarbon group. This polymeric compound has not only high substrate adhesion and high etching resistance but also high solubility for a resist solvent.
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