Resist composition and method for forming resist pattern
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United States of America Patent
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Sep 1, 2015
Grant Date -
May 29, 2014
app pub date -
Nov 20, 2013
filing date -
Nov 27, 2012
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Abstract
A resist composition which generates an acid upon exposure and exhibits changed solubility in a developing solution by the action of an acid, the resist composition containing a base material component which exhibits changed solubility in a developing solution by the action of an acid; and the base material component containing a resin component having a constituent unit derived from a compound represented by the following general formula (a0-1), at least two or more kinds of a constituent unit containing an acid dissociable group represented by the following general formula (a1-r-1) or (a1-r-2), and a constituent unit containing a lactone-containing, an —SO2-containing, or a carbonate-containing cyclic group; and a method for forming a resist pattern using the resist composition.
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