High-resolution mastering using AlNiGd metallic glass thin film as thermal absorption layer

We have succeeded in patterning narrow lines and dots with nano-scale dimensions of ZnS–SiO 2 using Al 90Ni 3Gd 7 metallic glass thin film as the thermal absorption layer. The laser thermal lithography technique was carried out using a semiconductor laser with 405 nm wavelength. The demonstrated res...

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Bibliographic Details
Published in:Intermetallics 2010-12, Vol.18 (12), p.2308-2311
Main Authors: Lee, Mei Ling, Yuan, Gao Qiang, Gan, Chee Lip, Ng, Lung Tat, Lim, Chow Tian, Ye, Kai Dong
Format: Article
Language:English
Subjects:
Amorphous materials
B. Glasses, metallic
B. Thermal properties
C. Laser processing
C. Thin films
G. Ambient-temperature uses
Lithography
Metallic glasses
Nanomaterials
Nanostructure
Patterning
Thermal absorption
Thin films
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Summary:We have succeeded in patterning narrow lines and dots with nano-scale dimensions of ZnS–SiO 2 using Al 90Ni 3Gd 7 metallic glass thin film as the thermal absorption layer. The laser thermal lithography technique was carried out using a semiconductor laser with 405 nm wavelength. The demonstrated resolution of the patterns produced is far beyond the diffraction limit of 200 nm given by our optical setup. The use of metallic glass as the thermal absorption layer has a number of advantages, including providing a cost-effective approach, high performance such as high selectivity and high aspect (height to width) ratio, loose environment requirement, reliable and stable compared with existing thermal absorption chalcogenide-based phase change layer materials, such as GeSbTe and AgInSbTe.
ISSN:0966-9795
1879-0216
DOI:10.1016/j.intermet.2010.07.023