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纳米材料和纳米结构第09讲纳米图案化技术.ppt

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纳米材料和纳米结构第09讲纳米图案化技术.ppt

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纳米材料和纳米结构第09讲纳米图案化技术.ppt

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文档介绍:纳米结构和纳米材料
Artificial Patterning of Nanostructures
纳米结构的人工图案化技术
第九讲
1 Introduction
Enormous Achievement Obtained by Microelectronics(微电子取得了巨大的成就)




Rich functionality in applications(应用功能广泛)
Low energy consumption in operations(运行过程能耗低)
Low cost in fabrications(制作成本低廉)
Extended into non-electric areas such as micro-actuators, - sensors and
(深入微制动器、感应器和微DNA探测等非电子领域)
micro-DNA probes
Fabrication: from micrometer to nanometer scale
制造:从微米到纳米尺寸



Horizontal device feature size: μm to 35 nm(水平技术参数:)
Vertical device feature size: less than nm(垂直技术参数:)
Artificially patterned nanostructures with reproducibility, such as quantum(
人工纳米结构图案的可重复性,如量子点、光子点阵)
dots, photonic lattices etc.
Promising techniques: electron beam lithography (EBL), X-ray
lithography (XRL), extreme ultraviolet lithography (EUVL)(有前景的技术:
电子发射平版印刷术、X射线平版印刷术、远紫外线平版印刷术)
Lithography-平版印刷术(光刻)
Similar to traditional optical lithography, nanolithography also
consists of three parts:
(与传统光学印刷术相同的是:纳米光刻也包括3部分)
• A tool(一种工具)
• A proper resist(一种合适的反蚀药剂)
• A pattern transfer process(一个图案转换过程)
A specific nanostructure pattern is carried by an illuminating source
and beamed onto a resist layer sensitive to the particular source, and
the pattern in the resist is then transferred onto an underlying
substrate(具体的纳米图案先通过一种照明材料显现出来,然后发射到对照明源反应敏感的防腐层,
最终在反蚀剂的图案转移到衬底)
Differences between nanolithography and optical lithography
(纳米刻录和光学刻录的区别):
• Exposing sources(显现材料)
• Masks(面具)
• resists(反蚀剂)
2 Nanolithography
(纳米平版印刷术)

8 nm lines in AuPd using a nm e-beam (1976)()
2-1 Electron Beam Lithography (EBL)(电子书刻蚀)
EBL: a method that allows the original digital image to be transferred
directly to the interested substrate without the use of mask(EBL技术:是一种可以不用面具直接将初始图案转移到衬底的方法)
Progress history:
• 50 nm lines into metal fil