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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Verdingovas, Vadimas
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Topics
Publications (8/8 displayed)
- 2020Influence of Ni, Bi, and Sb additives on the microstructure and the corrosion behavior of Sn–Ag–Cu solder alloyscitations
- 2019Electrochemical Impedance Spectroscopy (EIS) for Monitoring the Water Load on PCBAs Under Cycling Condensing Conditions to Predict Electrochemical Migration Under DC Loadscitations
- 2018Humidity-related failures in electronics: effect of binary mixtures of weak organic acid activatorscitations
- 2018Corrosion Reliability of Lead-Free Solder Systems Used in Electronicscitations
- 2017Corrosion reliability of lead-free solder systems used in electronicscitations
- 2015Effect of iodine on the corrosion of Au-Al wire bondscitations
- 2014Corrosion in electronics: Overview of failures and countermeasures
- 2013Decomposition studies of no-clean solder flux systems in connection with corrosion reliability of electronics
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document
Corrosion reliability of lead-free solder systems used in electronics
Abstract
The present work investigated the corrosion reliability of Sn-Ag-Cu based five lead-free solder alloys. The corrosion and electrochemical migration (ECM) susceptibility study of the solder alloys has been carried out by water droplet (WD) tests on pure alloy ingot samples, and by accelerated humidity/temperature cycling tests on soldered surface insulation resistance (SIR) comb pattern. Complimentary microstructural and phase analysis of solder alloys has been carried out using the scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD) methods. The galvanic corrosion was found between cathodically active Bi phase and anodic (Sn, Sb) solid solution in InnoLot alloy, while the Ag3Sn phase was cathodically active in the other four alloys. The paper theoretically illustrated the reason for the differences in corrosion reliability in the five alloys based on the composition and distribution of intermetallic compounds (IMCs).