Citation

Choo, Kan Yeep and Lim, E Lin and Ong, Duu Sheng and You, Ah Heng (2021) Effects of Anode Design and Configuration on the Growth Dynamics and Surface Morphologies of Electrodeposited Copper Films. Journal of Engineering Technology and Applied Physics, 3 (1). pp. 22-29. ISSN 26828383

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Abstract

The influence of different anode configurations on the growth mechanisms, transient currents and surface morphologies of copper film using localized electrodeposition technique have been studied. Measured transient currents during electrodeposition were used to investigate the underlying growth dynamics. SEM images were obtained and the surface morphologies of the deposited copper films were analyzed. It was found that the transient current increased when copper ions were able to grow directly on the empty surface of the copper film that was located away from the mini electrodes. This caused the copper ions to be deposited sporadically via the instantaneous growth mechanism and formed cluster of atoms on the empty surface of the copper film which led to rougher surfaces. In contrast, progressive growth was observed to occur at a faster rate for the deposition performed using insulated mini electrodes, especially in the case of collinear double insulated mini electrodes as indicated by the reduction of the transient current with time. Besides, copper films with uniform and smoother surfaces were obtained when the depositions were performed using multiple or a large number of closely spaced mini electrodes. This was due to the fact that large number of closely spaced mini electrodes produced parallel and uniform electric field patterns.

Item Type:	Article
Uncontrolled Keywords:	Copper film, miniature electrode, localized electrodeposition, instantaneous growth, progressive growth
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Mr. MUHAMMAD AZRUL MOSRI
Date Deposited:	07 Aug 2024 03:26
Last Modified:	07 Aug 2024 03:26
URII:	http://shdl.mmu.edu.my/id/eprint/12754

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