Wang_Corros Sci Manuscript.pdf (2.62 MB)

Combined effects of surface oxidation and interfacial intermetallic compound growth on solderability degradation of electrodeposited tin thin films on copper substrate due to isothermal ageing

Download (2.62 MB)
journal contribution
posted on 06.09.2018 by Jing Wang, Guang Chen, Fulong Sun, Zhaoxia Zhou, Zhi-Quan Liu, Changqing Liu
© 2018 Elsevier Ltd We report new insights into the solder wettability degradation of Sn thin films on Cu under 155 °C isothermal ageing. A multiscale wettability degradation model was established, reflecting quantitatively the surface oxidation and interfacial intermetallic compound (IMC) growth, on the basis of solder wetting behaviour. The thermal oxidation of Sn exhibited heterogeneous inward thickening, lateral expanding and outward platelet-like growth, forming nanocrystalline, oxygen-deficient SnO2with pronounced voiding/cracking propensity. Unlike a commonly held belief that the initial wettability loss is due to surface-exposing and oxidation of IMCs, it was found from dual combined effects of inward surface oxidation and outward IMC growth.

Funding

This work was supported by Huawei Technologies Ltd., Shenzhen, China [grant number HIPRO20160804].

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Corrosion Science

Volume

139

Pages

383 - 394

Citation

WANG, J. ... et al., 2018. Combined effects of surface oxidation and interfacial intermetallic compound growth on solderability degradation of electrodeposited tin thin films on copper substrate due to isothermal ageing. Corrosion Science, 139, pp. 383-394.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

17/05/2018

Publication date

2018

Notes

This paper was accepted for publication in the journal Corrosion Science and the definitive published version is available at Corrosion Science.

ISSN

0010-938X

Language

en

Exports

Logo branding

Keyword(s)

Exports