2019
DOI: 10.1080/14686996.2019.1591168
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Structure and properties of Sn-Cu lead-free solders in electronics packaging

Abstract: With the development of lead-free solders in electronic packaging, Sn-Cu lead-free solder has attracted wide attention due to its excellent comprehensive performance and low cost. In this article, we present recent developments in Sn-Cu lead-free solder alloys. From the microstructure and interfacial structure, the evolution law of the internal structure of solder alloy/ solder joint was analysed, and the model and theory describing the formation/growth mechanism of interfacial IMC were introduced. In addition… Show more

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Cited by 98 publications
(37 citation statements)
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“…Sn-Ag-Cu solder is the best substitution in the replace of Sn-Pb solder. However, with the miniaturization of electron components and deterioration of the service environment, the higher requirements are put forward for the comprehensive properties of SAC solders [62][63][64]. Therefore, lots of measures had been carried out to enhance the comprehensive performance of SAC solders.…”
Section: Evolution Of Microstructure and Propertiesmentioning
confidence: 99%
“…Sn-Ag-Cu solder is the best substitution in the replace of Sn-Pb solder. However, with the miniaturization of electron components and deterioration of the service environment, the higher requirements are put forward for the comprehensive properties of SAC solders [62][63][64]. Therefore, lots of measures had been carried out to enhance the comprehensive performance of SAC solders.…”
Section: Evolution Of Microstructure and Propertiesmentioning
confidence: 99%
“…The commonly used solder alloy in electronic manufacturing was the tin-lead (Sn63wt.%-Pb37wt.%) because of its good wettability, low melting temperature, availability, etc. [7]. However, lead (Pb) has been restricted for further use in electronic components due to the low electronics' recycling rate and the adverse impact of Pb on human health [8][9][10].…”
Section: Introductionmentioning
confidence: 99%
“…Meng Zhao et. al [11] have improved the Sn-Cu lead-free solders performance by alloying, particle strengthening, optimization of the soldering process, and development of matching soldering fluxes. They confirmed on the essentiality to understand the structureperformance relationships and potential reliability problems of Sn-Cu solders.…”
Section: Introductionmentioning
confidence: 99%