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To establish a perfect Ag stress migration bonding, the detailed growth process of hillocks and grains in Ag films deposited on Si substrate has been investigated by cross-sectional analysis of nanoscale grains. The instability in the microstructural evolution depends on the process temperature; hillock growth is dominant up to 300°C, while lateral grain growth becomes superior at higher temperatures...
We have successfully developed a new Ag nanoparticle paste which can sinter at room temperature simply by drying the solvent from the paste. A small amount of alkylamine was incorporated into the Ag nanoparticle paste to form protective layers on the nanoparticles. By drying at room temperature, Ag nanoparticles are sintered, resulting in a low resistivity of 4.9×10 −6 Ωm. Since the new paste...
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