Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1470971 | Corrosion Science | 2010 | 6 Pages |
Abstract
This study investigated the electrochemical corrosion properties of the solders for die-attach applications in 3.5% NaCl solution. Compared with Pb–5Sn and Zn–40Sn, Bi–11Ag exhibited higher corrosion potential and relatively low corrosion current density. The ductile Ag-rich phase which dispersed in the Bi matrix was able to accommodate the stress arising from the formation of a passive layer and contributed to the two-stage passivation. X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) results confirm that the corrosion products comprised BiOCl, Bi2O3 and AgCl.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jenn-Ming Song, Chi-Hang Tsai, Yen-Pei Fu,