Proton Transfer to Melamine Crosslinkers in X-Ray Chemically Amplified Negative Resists Studied by Time-Resolved and Steady-State Optical Absorption Measurement
Proton Transfer to Melamine Crosslinkers in X-Ray Chemically Amplified Negative Resists Studied by Time-Resolved and Steady-State Optical Absorption Measurement
复制标题
通过时间分辨和稳态光学吸收测量研究 X 射线化学放大负抗蚀剂中质子转移到三聚氰胺交联剂
DOI:
10.1143/jjap.35.6491
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发表时间:
1996
影响因子:
1.5
通讯作者:
Seiichi Tagawa Seiichi Tagawa
中科院分区:
文献类型:
--
作者:
S. Nagahara;Y. Yamashita;T. Taguchi;T. Kozawa;Yoichi Yoshida Yoichi Yoshida;Seiichi Tagawa Seiichi Tagawa
Proton transfer to melamine crosslinkers has been analyzed in three X-ray chemically amplified (CA) negative resists. One is an in-house fabricated resist composed of m-cresol novolac, 2,4,6-tris (trichloromethyl)-1,3,5-triazine (TCT), and hexamethoxymethylmelamine (HMMM). The other two are commercially available resists: SAL-601 (Shipley Co.) and AZ-PN 100 (Hoechst Co.). The behavior of protons induced by X-ray exposure was analyzed using both conventional steady-state optical absorption spectroscopy and nanosecond time-resolved absorption spectroscopy (pulse radiolysis). The results indicate that the protons are transferred from the proton adducts (acid precursors) of matrix polymers to the melamine crosslinker in a very early step. This proton transfer was much faster than that from the proton adducts of matrix polymers to dissolution inhibitors in CA positive resists.