RESIST COMPOSITION AND METHOD OF FORMING RESIST PATTERN
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United States of America Patent
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Mar 14, 2013
app pub date -
Sep 6, 2012
filing date -
Sep 8, 2011
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Abstract
A resist composition comprising: a base component (A) which exhibits changed solubility in a developing solution under action of acid; an acid-generator component (B) which generates acid upon exposure; and a compound (D1) including of a cation moiety which contains a quaternary nitrogen atom, and an anion moiety represented by formula (d1-an1) or (d1-an2) shown below. In the formulas, X represents a cyclic aliphatic hydrocarbon group of 3 to 30 carbon atoms which may have a substituent; and Y1 represents a fluorinated alkylene group of 1 to 4 carbon atoms which may have a substituent.
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