The effects of aeration and accumulation of carbonate ions on the mechanical properties of electroless copper coatings

To improve the mechanical properties of Cu coatings and bath stability, electroless deposition was carried out at an elevated temperature under aerated conditions. In this study, emphasis is placed on elucidating the effects of temperature and accumulated carbonate ions during the aeration on the me...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 1995, Vol.142 (1), p.87-91
Main Authors: MATSUOKA, M, YOSHIDA, Y, IWAKURA, C
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Metallic coatings
Metals. Metallurgy
Production techniques
Surface treatment
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Summary:To improve the mechanical properties of Cu coatings and bath stability, electroless deposition was carried out at an elevated temperature under aerated conditions. In this study, emphasis is placed on elucidating the effects of temperature and accumulated carbonate ions during the aeration on the mechanical properties of the electroless Cu coatings. Electrochemical analysis using a quartz crystal microbalance electrode indicates that the mechanical properties are markedly improved by reducing the amount of adsorbed methylene glycol anion which seems to be an intermediate in the oxidation of formaldehyde. Changes in temperature and carbonate concentration alter the mechanical properties and crystal structure through influencing the amount of the adsorbed intermediate.
ISSN:0013-4651
1945-7111
DOI:10.1149/1.2043951