RESIST COMPOSITION AND METHOD FOR FORMING RESIST PATTERN
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United States of America Patent
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Sep 12, 2024
app pub date -
Jun 10, 2022
filing date -
Jun 15, 2021
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Abstract
A resist composition that contains a resin component having a constitutional unit containing an acid-dissociable group represented by General Formula (a01-r) below and contains an acid generator component containing a compound represented by General Formula (b0) below. In General Formula (a01-r), Ra01 and Ra02 represent a saturated aliphatic hydrocarbon group, Ra01 and Ra02 may be bonded to each other to form an alicyclic group. Ra03 to Ra05 represent an aliphatic hydrocarbon group and two or more of Ra03 to Ra05 may be bonded to each other to form an alicyclic group. In General Formula (b-0), X0 represents an iodine atom, Rm represents a hydroxy group, nb1 represents an integer in a range of 1 to 5, nb2 represents an integer in a range of 0 to 4, 1≤nb1+nb2≤5, Yb0 represents a divalent linking group, Vb0 represents an alkylene group, R0 represents a fluorinated alkyl group having 1 to 5 carbon atoms, and Mm+ represents an m-valent organic cation
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