Improved Inkjet-Printed Pattern Fidelity: Suppressing Bulges by Segmented and Symmetric Drop Placement
| Autor: | Paria Naderi, Saifur Rahman, Gerd Grau, Ragheb Abunahla |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Process Chemistry and Technology Acoustics Drop (liquid) media_common.quotation_subject Fidelity 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Mechanics of Materials 0210 nano-technology media_common |
| Zdroj: | Journal of Micro and Nano-Manufacturing. 8 |
| ISSN: | 2166-0476 2166-0468 |
| Popis: | Inkjet printing is a promising technique for printed micro-electronics due to low cost, customizability and compatibility with large-area, flexible substrates. However, printed line shapes can suffer from bulges at the start of lines and at corner points in 2D line patterns. The printed pattern can be multiple times wider than the designed linewidth. This can severely impact manufacturing accuracy and achievable circuit density. Bulging can be difficult to prevent without changing the ink-substrate-system, the drying conditions or the circuit design, all of which can be undesirable. Here, we demonstrate a novel printing methodology that solves this issue by changing the order in which drops are placed on the substrate. The pattern is split up into segments of three drops where the central drop is printed last. This symmetric printing prevents the unwanted ink flow that causes bulging. Larger bulge-free patterns are created by successively connecting segments. Line formation in both traditional linear printing and our novel segmented and symmetric printing was analyzed to understand and optimize results. The printing of X-, T-, and L-shapes is considerably improved compared with the traditional linear printing methodology. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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