リソグラフィ用 EUV(極端紫外)光源研究の現状と将来展望 3.EUV リソグラフィ光源としてのプラズマ その理論的な考察について
リソグラフィ用 EUV(極端紫外)光源研究の現状と将来展望 3.EUV リソグラフィ光源としてのプラズマ その理論的な考察について
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光刻用EUV(极紫外)光源研究现状及未来展望3.等离子体作为EUV光刻光源及其理论思考
DOI:
10.1585/jspf.79.226
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
仁紀 米田
中科院分区:
文献类型:
--
作者:
仁紀 米田
An extreme ultraviolet (EUV) radiation source is a critical factor for the success of EUV lithography. Although there are many methods and operating parameters for the generation of EUV light, none of the currently known sources meets the requirements of EUV lithography systems. In addition, the EUV source must be an integral part of a total lithography system, and must satisfy several criteria imposed by other parts of the entire system. For the purpose of examining the prospects for such sources, the emissivity from hot dense plasmas has been estimated with a model including opacity, ion abundance, hydrodynamics, and radiation transport. For quantitative estimation, the similarity of energy structure of Xe9+ and Xe10+ is considered. Only a small amount of data exists regarding Xe10+ ionization and energies of excited states. Various ideas for improvements are presented.