direct printing of 1-d and 2-d electronically conductive structures by molten lead-free solder

Clics: 194
ID: 241250
2016
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Résumé
This study aims to determine the effects of appropriate experimental parameters on the thermophysical properties of molten micro droplets, Sn-3Ag-0.5Cu solder balls with an average droplet diameter of 50 μm were prepared. The inkjet printing parameters of the molten micro droplets, such as the dot spacing, stage velocity and sample temperature, were optimized in the 1D and 2D printing of metallic microstructures. The impact and mergence of molten micro droplets were observed with a high-speed digital camera. The line width of each sample was then calculated using a formula over a temperature range of 30 to 70 °C. The results showed that a metallic line with a width of 55 μm can be successfully printed with dot spacing (50 μm) and the stage velocity (50 mm∙s−1) at the substrate temperature of 30 °C. The experimental results revealed that the height (from 0.63 to 0.58) and solidification contact angle (from 72° to 56°) of the metallic micro droplets decreased as the temperature of the sample increased from 30 to 70 °C. High-speed digital camera (HSDC) observations showed that the quality of the 3D micro patterns improved significantly when the droplets were deposited at 70 °C.
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wang2016materialsdirect Utilisez cette clé pour citer automatiquement dans le manuscrit lors de l'utilisation de SciMatic Manuscript Manager ou Thesis Manager
Auteurs ;Chien-Hsun Wang;Ho-Lin Tsai;Weng-Sing Hwang
Revue Nature Materials
Année 2016
DOI
10.3390/ma10010001
URL
http://www.mdpi.com/1996-1944/10/1/1
Mots-clés
inkjet printing electronics civil engineering (general)microscopydescriptive and experimental mechanics nuclear engineeringengineering (general)

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