Insights into the behavior of Sn on NiPdAu surface: Diffusion energetics in complex multilayered surfaces
| Autor: | Ernesto Antilano, Ian Harvey Arellano, Amor Zapanta |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Surface diffusion
Materials science Mechanical Engineering Diffusion Metallurgy Energetics Enthalpy Intermetallic 02 engineering and technology Solderability 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Mechanics of Materials Soldering Physical chemistry Surface modification General Materials Science 0210 nano-technology |
| Zdroj: | Materials Letters. 191:206-209 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2016.12.061 |
| Popis: | Following the observation of the effect of laser deflash (originally intended to remove tape residues) on the integrity of the NiPdAu surface and its impact on solderability, differential scanning calorimetric (DSC) analyses were performed on Sn-coated intact and modified surfaces. Morphological analyses revealed the preservation of topographical features after surface modification. The enthalpy of formation (Δ H f ), derived from the deconvolution and peak fitting of the overall thermogram afforded the isolation of individual contribution from simultaneous/competing intermetallic compound (IMC) formations: −1.88 kJ mol − 1 for AuSn 4 , −1.86 ± 1.44 kJ mol − 1 for PdSn 2 /PdSn 4 , −3.26 ± 0.83 kJ mol − 1 for Ni 3 Sn 4 , and −3.88 ± 0.85 kJ mol − 1 for (Cu,Ni) 6 Sn 5 . The evolution of the individual contributions showed strong dependence on the surface nature prior to solderability testing, with the insights into their behavior discussed in detail. |
| Databáze: | OpenAIRE |
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