Optimization of Hybrid Ink Formulation and IPL Sintering Process for Ink-Jet 3D Printing
Autor: | Kyu Sung Han, Sahn Nahm, Cheong Soo Choi, Bum Seok Kim, Jin-Ho Kim, Kwang Taek Hwang, Jae Young Lee |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
photo-curable nano SiO2 ink
Materials science Inkwell Annealing (metallurgy) business.industry General Chemical Engineering IPL-sinterable nano Cu ink Sintering 3D printing Article ink-jet 3D printing Chemistry Printed circuit board rheological properties Nano General Materials Science IPL sintering Composite material business QD1-999 Layer (electronics) Electrical conductor |
Zdroj: | Nanomaterials Volume 11 Issue 5 Nanomaterials, Vol 11, Iss 1295, p 1295 (2021) |
ISSN: | 2079-4991 |
DOI: | 10.3390/nano11051295 |
Popis: | Ink-jet 3D printing technology facilitates the use of various materials of ink on each ink-jet head and simultaneous printing of multiple materials. It is suitable for manufacturing to process a complex multifunctional structure such as sensors and printed circuit boards. In this study, a complex structure of a SiO2 insulation layer and a conductive Cu layer was fabricated with photo-curable nano SiO2 ink and Intense Pulsed Light (IPL)-sinterable Cu nano ink using multi-material ink-jet 3D printing technology. A precise photo-cured SiO2 insulation layer was designed by optimizing the operating conditions and the ink rheological properties, and the resistance of the insulation layer was 2.43 × 1013 Ω·cm. On the photo-cured SiO2 insulation layer, a Cu conductive layer was printed by controlling droplet distance. The sintering of the IPL-sinterable nano Cu ink was performed using an IPL sintering process, and electrical and mechanical properties were confirmed according to the annealing temperature and applied voltage. Then, Cu conductive layer was annealed at 100 °C to remove the solvent, and IPL sintered at 700 V. The Cu conductive layer of the complex structure had an electrical property of 29 µΩ·cm and an adhesive property with SiO2 insulation layer of 5B. |
Databáze: | OpenAIRE |
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