Deprotonation mechanism of ionized poly(4-hydroxystyrene)
Deprotonation mechanism of ionized poly(4-hydroxystyrene)
复制标题
电离聚(4-羟基苯乙烯)的去质子化机理
DOI:
10.1117/12.2045881
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
and Kikuo Umegaki
中科院分区:
文献类型:
--
作者:
Toshihiko Susa;Kazumasa Okamoto ;Takuya Ishida ;Hiroki Yamamoto ;Takahiro Kozawa ;Ryoko Fujiyoshi;and Kikuo Umegaki
Poly(4-hydroxystyrene) (PHS), a backbone polymer in resist constituents is also a promising material for extreme ultraviolet (EUV) and electron beam (EB) lithography. Efficient deprotonation occurs from radical cations of irradiated PHS. A hydroxystyrene unit is incorporated in the chemically amplified resist structure as a proton source, in which reaction mechanism has not been well established. In this study, deprotonation mechanism of an ionized PHS was characterized by using pulse radiolysis techniques. The influence of several additives such as sulfoxides and amides with high acidity on the kinetics of the deprotonation was investigated to clarify the fundamentals of the enhancement of deprotonation efficiency from the PHS radical cation. Influence of the additives on the acid yield in thin film was also investigated.
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DOI:
--
发表时间:
2006
期刊:
J. Appl. Phys 45
影响因子:
--
作者:
K. Natsuda;T. Kozawa;K. Okamoto and S. Tagawa
通讯作者:
K. Okamoto and S. Tagawa
DOI:
--
发表时间:
2006
期刊:
Jpn. J. Appl. Phys.
影响因子:
--
作者:
A. Nakano;T. Kozawa;K. Okamoto;S. Tagawa;T. Kai;T. Shimokawa
通讯作者:
T. Shimokawa
DOI:
--
发表时间:
2004
期刊:
Japanese Journal of Applied Physics 43
影响因子:
--
作者:
H.Yamamoto;A.Nakano;K.Okamoto;T.Kozawa;S.Tagawa
通讯作者:
S.Tagawa
影响因子:
1.5
作者:
Hiroki Yamamoto;T. Kozawa;A. Nakano;K. Okamoto;Y. Yamamoto;T. Ando;Mitsuru Sato;H. Komano;S. Tagawa
通讯作者:
S. Tagawa
DOI:
--
发表时间:
2008
期刊:
J. Phys. Chem B 112
影响因子:
--
作者:
K. Okamoto;T. Kozawa;K. Natsuda;S. Seki;and S. Tagawa
通讯作者:
and S. Tagawa