Proceedings of the Materials Research Society of Korea Conference (한국재료학회:학술대회논문집)
- 2011.10a
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- Pages.25.1-25.1
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- 2011
The Substitution of Inkjet-printed Gold Nanoparticles for Electroplated Gold Films in Electronic Package
- Published : 2011.10.27
Abstract
Over the past few decades, metallic nanoparticles (NPs) have been of great interest due to their unique mesoscopic properties which distinguish them from those of bulk metals; such as lowered melting points, greater versatility that allows for more ease of processability, and tunable optical and mechanical properties. Due to these unique properties, potential opportunities are seen for applications that incorporate nanomaterials into optical and electronic devices. Specifically, the development of metallic NPs has gained significant interest within the electronics field and technological community as a whole. In this study, gold (Au) pads for surface finish in electronic package were developed by inkjet printing of Au NPs. The microstructures of inkjet-printed Au film were investigated by various thermal treatment conditions. The film showed the grain growth as well as bonding between NPs. The film became denser with pore elimination when NPs were sintered under gas flows of