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电子束重复增量扫描曝光方式的反应机理研究
The Study of Reaction Mechanism in Electron Beam Lithography Based on Overlapped Increment Scanning
【摘要】 从高分子辐射化学的角度分析了电子束曝光的实际反应机理,推导得出曝光辐射剂量与辐射降解程度间的关系,提出了重复增量扫描方式的电子束微三维加工方法。通过在SDS-3型电子束曝光机上对正性抗蚀剂PMMA进行曝光实验,显影后得到轮廓清晰的三维结构,验证了该方法的可行性。
【Abstract】 The practical reaction mechanism of electron beam lithography is analyzed based on macromolecule radiation chemistry and the relationship of the exposure radiation dose with radiation scission degree is deduced.Then the overlapped increment scanning is proposed as a new method of three-dimensional microfabrication.The exposure experiments are made in SDS-3 electron beam lithography system.After the development,the clear three-dimensional microstructures are obtained.So this method can be used in the three-dimensional microfabrication.
【关键词】 电子束光刻;
微三维加工;
辐射降解;
聚甲基丙烯酸甲酯(PMMA);
【Key words】 electron beam lithography; three-dimensional microfabrication; radiation damage; polymethylmethacrylate;
【Key words】 electron beam lithography; three-dimensional microfabrication; radiation damage; polymethylmethacrylate;
【基金】 国家自然科学基金重大研究计划资助项目(90307003);国家自然科学基金资助项目(10572078);山东省自然科学基金资助项目(Y2003G03);山东省科技攻关计划基金资助项目(022090105)
- 【文献出处】 微细加工技术 ,Microfabrication Technology , 编辑部邮箱 ,2006年05期
- 【分类号】TN405
- 【下载频次】52