光电子快报(英文版), 2013, 9 (1): 34, Published Online: Oct. 12, 2017  

A new method to characterize the metallic-oxide films for grayscale lithography

Author Affiliations
1 School of Science, Tianjin University of Technology, Tianjin 300384, China
2 Tianjin Key Laboratory of Film Electronic and Communication Device, Engineering Research Center of Communication
Abstract
In order to characterize the metallic-oxide grayscale films fabricated by laser direct writing (LDW) in indium film, a new method with micro-Raman spectroscopy and atomic force microscope (AFM) is proposed. Raman spectra exhibit the characteristic band of In2O3 centered at 490 cm-1, in which the intensities increase with the decreasing optical density of the In-In2O3 grayscale films. The mapping information of Raman spectra shows that the signal intensities of the film in the same grayscale area are uniform. Combining with the information of In-In2O3 grayscale film from AFM, the quantitative relationship between the concentration of In2O3 and the Raman signal intensity is shown. Compared with the conventional methods, the resolution of micro-Raman scattering method is appropriate, and the scanning speed is proper to analyze the structure of metallic-oxide grayscale films.
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SUN Li-ping, ZHANG Shuang-gen, WANG Zhe, DENG Jia-chun, Lü Jiang. A new method to characterize the metallic-oxide films for grayscale lithography[J]. 光电子快报(英文版), 2013, 9(1): 34.

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