Prediction Surface Morphology of Nanostructure Fabricated by Nano-Oxidation Technology

Materials

Jen-Ching Huang²  Ho Chang³  Chin-Guo Kuo¹  Jeen-Fong Li¹  Yong-Chin You³ 

[1] Department of Industrial Education, National Taiwan Normal University, Taipei 10610, Taiwan;Department of Mechanical Engineering, Tungnan University, New Taipei City 22202, Taiwan;Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan;

关键词: atomic force microscopy (AFM);    nano-oxidation;    diamond-like carbon (DLC);    back propagation neural network (BPN);   

DOI  :  10.3390/ma8125468

来源: mdpi

【 摘 要 】

Atomic force microscopy (AFM) was used for visualization of a nano-oxidation technique performed on diamond-like carbon (DLC) thin film. Experiments of the nano-oxidation technique of the DLC thin film include those on nano-oxidation points and nano-oxidation lines. The feature sizes of the DLC thin film, including surface morphology, depth, and width, were explored after application of a nano-oxidation technique to the DLC thin film under different process parameters. A databank for process parameters and feature sizes of thin films was then established, and multiple regression analysis (MRA) and a back-propagation neural network (BPN) were used to carry out the algorithm. The algorithmic results are compared with the feature sizes acquired from experiments, thus obtaining a prediction model of the nano-oxidation technique of the DLC thin film. The comparative results show that the prediction accuracy of BPN is superior to that of MRA. When the BPN algorithm is used to predict nano-point machining, the mean absolute percentage errors (MAPE) of depth, left side, and right side are 8.02%, 9.68%, and 7.34%, respectively. When nano-line machining is being predicted, the MAPEs of depth, left side, and right side are 4.96%, 8.09%, and 6.77%, respectively. The obtained data can also be used to predict cross-sectional morphology in the DLC thin film treated with a nano-oxidation process.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.