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Nanoparticle Enhanced Solders for Increased Solder Reliability

  • Omid Mokhtari (a1), Ali Roshanghias (a2), Roya Ashayer (a2), Hiren R Kotadia (a1), Farzad Khomamizadeh (a3), Amir H Kokabi (a3), Michael P Clode (a2), Mark Miodownik (a1) and Samjid H Mannan (a1)...

Abstract

Due to environmental concerns traditional eutectic tin-lead solder is gradually being replaced in electronic assemblies by “lead-free” solders. During this transition, nanoparticle technology is also being investigated to see whether improvements in joint reliability for high temperature applications can be made. Nanoparticles can be used to harden the solder via Zener pinning of the grain boundaries and reduce fatigue failure. This paper explores the effects of adding Silica nanoparticles to SnAgCu solder, and how the mechanical properties induced in the solder vary with temperature. It is found that above 100 °C the mechanical response and microstructure of the normal and nanoparticle enhanced solders converge.

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Keywords

Nanoparticle Enhanced Solders for Increased Solder Reliability

  • Omid Mokhtari (a1), Ali Roshanghias (a2), Roya Ashayer (a2), Hiren R Kotadia (a1), Farzad Khomamizadeh (a3), Amir H Kokabi (a3), Michael P Clode (a2), Mark Miodownik (a1) and Samjid H Mannan (a1)...

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