The recent development of soft x-ray interference lithography in SSRF
Open accessAbstract
This paper introduces the recent progress in methodologies and their related applications based on the soft x-ray interference lithography beamline in the Shanghai synchrotron radiation facility. Dual-beam, multibeam interference lithography and Talbot lithography have been adopted as basic methods in the beamline. To improve the experimental performance, a precise real-time vibration evaluation system has been established; and the lithography stability has been greatly improved. In order to meet the demands for higher resolution and practical application, novel experimental methods have been developed, such as high-order diffraction interference exposure, high-aspect-ratio and large-area stitching exposure, and parallel direct writing achromatic Talbot lithography. As of now, a 25 nm half-pitch pattern has been obtained; and a cm 2 exposure area has been achieved in practical samples. The above methods have been applied to extreme ultraviolet photoresist evaluation, photonic crystal and surface plasmonic effect research, and so on.
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Extreme ultraviolet lithography
Kazazis, D., Santaclara, J. G., van Schoot, J., Mochi, I., & Ekinci, Y. (2024) · Nature Reviews Methods Primers · doi:10.1038/s43586-024-00361-z · Cited by 149 · see citing works
- Authors
- Zhao, J., Yang, S., Xue, C., Wang, L., Liang, Z., Zhang, L., Wang, Y., Wu, Y., & Tai, R.
- Affiliations
- Chinese Academy of Sciences (CN)
- Corresponding author
- Wu, Yanqing
- Tai, Renzhong
- ORCID
- Venue
- International Journal of Extreme Manufacturing
- Publisher
- IOP Publishing
- Published
- 2020-02-26
- Volume
- 2
- Issue
- 1
- Pages
- 012005
- ISSN
- 2631-7990 (ISSN-L)
- 2631-8644
- OpenAlex
- W3004288329
- Cited by
- 26
- References
- 54
- Citations by year
- 2026: 1 · 2025: 6 · 2024: 4 · 2023: 7 · 2022: 5 · 2021: 3
- FWCI
- 1.29
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- International Journal of Extreme Manufacturing (publishedVersion, cc-by)
- Funders
- the National Key Basic Research Program of China Science and Technology Commission of Shanghai Municipality (17JC1400802)
- the National Key R&D Program of China (2017YFA0206001)
- the National Natural Science Foundation of China (11775291)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advancements in Photolithography Techniques
- Physical Sciences › Physics and Astronomy › Radiation › Advanced X-ray Imaging Techniques
- Physical Sciences › Materials Science › Materials Chemistry › X-ray Diffraction in Crystallography
- Keywords
- vibration monitoring, high aspect ratio patterning, photonic crystals, surface plasmonics, large-area patterning, synchrotron radiation beamline
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