Deprotonation of Poly(4-hydroxystyrene) Intermediates: Pulse Radiolysis Study of Extreme Ultraviolet and Electron Beam Resist

作者: Kazumasa Okamoto , Ryo Matsuda , Hiroki Yamamoto , Takahiro Kozawa , Seiichi Tagawa

DOI: 10.7567/JJAP.52.06GC04

关键词: LithographyIonizationRadiolysisDeprotonationExtreme ultravioletPolymerPhotochemistryExtreme ultraviolet lithographyRadical ionChemistryGeneral EngineeringGeneral Physics and Astronomy

摘要: Poly (4-hydroxystyrene)(PHS) has been used in current lithography as a backbone polymer and is also a promising material for EUV and electron beam (EB) lithography. PHS is …

参考文章(41)
Kazumasa Okamoto, Masafumi Tanaka, Takahiro Kozawa, Seiichi Tagawa, Dynamics of Radical Cation of Poly(4-hydroxystyrene) and Its Copolymer for Extreme Ultraviolet and Electron Beam Resists Japanese Journal of Applied Physics. ,vol. 48, pp. 06FC06- ,(2009) , 10.1143/JJAP.48.06FC06
T Kozawa, S Nagahara, Y Yoshida, S Tagawa, T Watanabe, Y Yamashita, Radiation-induced reactions of chemically amplified x-ray and electron-beam resists based on deprotection of t-butoxycarbonyl groups Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. ,vol. 15, pp. 2582- 2586 ,(1997) , 10.1116/1.589689
Mahalaxmi R. Ganapathi, Sergej Naumov, Ralf Hermann, Ortwin Brede, Nucleophilic effects on the deprotonation of phenol radical cations Chemical Physics Letters. ,vol. 337, pp. 335- 340 ,(2001) , 10.1016/S0009-2614(01)00216-0
Kazumasa Okamoto, Masafumi Tanaka, Takahiro Kozawa, Seiichi Tagawa, Dynamics of Radical Cation of Poly(4-hydroxystyrene)-Based Chemically Amplified Resists for Extreme-Ultraviolet and Electron Beam Lithographies Japanese Journal of Applied Physics. ,vol. 49, pp. 106501- ,(2010) , 10.1143/JJAP.49.106501
Atsuro Nakano, Kazumasa Okamoto, Takahiro Kozawa, Seiichi Tagawa, Effects of ester groups on proton generation and diffusion in polymethacrylate matrices international microprocesses and nanotechnology conference. ,vol. 43, pp. 3981- 3983 ,(2003) , 10.1143/JJAP.43.3981
S Kapoor, M Rele, H S Mahal, T Mukherjee, Electron transfer (oxidation) of complexes between bifunctional phenols and DMSO in non-polar surroundings Research on Chemical Intermediates. ,vol. 30, pp. 829- 836 ,(2004) , 10.1163/1568567042420785
Kazuyuki Enomoto, Koji Arimitsu, Atsutaro Yoshizawa, Ravi Joshi, Hiroki Yamamoto, Akihiro Oshima, Takahiro Kozawa, Seiichi Tagawa, Acid Generation Mechanism for Extreme Ultraviolet Resists Containing Pinanediol Monosulfonate Acid Amplifiers: A Pulse Radiolysis Study Japanese Journal of Applied Physics. ,vol. 51, pp. 046502- ,(2012) , 10.1143/JJAP.51.046502
Kenichiro Natsuda, Takahiro Kozawa, Kazumasa Okamoto, Seiichi Tagawa, Protonation Sites in Chemically Amplified Resists for Electron-Beam Lithography Japanese Journal of Applied Physics. ,vol. 45, pp. L1256- L1258 ,(2006) , 10.1143/JJAP.45.L1256
Kenichiro Natsuda, Takahiro Kozawa, Kazumasa Okamoto, Akinori Saeki, Seiichi Tagawa, Dynamics of radical cation of poly(4-hydroxystyrene) generated in thin film upon exposure to electron beam Proceedings of SPIE. ,vol. 7639, ,(2010) , 10.1117/12.846699