Positive resist material and patterning process

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United States of America

PATENT NO 12013639
SERIAL NO

17376394

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Abstract

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A positive resist material contains a base polymer containing: a repeating unit having two carboxyl groups whose hydrogen atoms are substituted with two tertiary carbon atoms each bonded to a double bond or triple bond; and a repeating unit having an acid generator shown by any of the following formulae (b1) to (b3). Thus, the present invention provides: a positive resist material having higher sensitivity than conventional positive resist materials, and smaller dimensional variation; and a patterning process using this inventive positive resist material.

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Patent Owner(s)

Patent OwnerAddress
SHIN-ETSU CHEMICAL CO LTD4-1 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1000005 ?1000005

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hatakeyama, Jun Joetsu, JP 692 7607
Ishibashi, Naoki Joetsu, JP 59 723
Sagehashi, Masayoshi Joetsu, JP 84 530

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