Understanding effects of printhead geometry in aerosol jet printing
Understanding effects of printhead geometry in aerosol jet printing
复制标题
了解打印头几何形状对气溶胶喷射打印的影响
DOI：
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发表时间：
2020
影响因子：
3.1
通讯作者：
E. Secor
中科院分区：
文献类型：
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作者：
Rebecca R. Tafoya;E. Secor
气溶胶喷射印刷提供了一个通用的，高分辨率的数字图案化能力广泛相关的灵活和印刷的电子系统。尽管它的承诺和众多的示范，理论原则驱动过程输出尚未得到彻底探讨。这里开发了一个定制的模块化打印系统，以提供两种打印喷嘴几何形状的头对头比较，以更好地了解该技术。使用支持向量机框架分析来自一系列工艺参数的打印分辨率数据。线性沉积速率被认为是一个关键变量，它可以混淆仔细的研究印刷性能。考虑到这一点，在打印头之间观察到明显的差异，对应于典型条件下57% ± 11%的分辨率差异。了解空气动力学和质量传输效应差异的模型将大直径打印头内的增强干燥确定为这种差异的可能原因。总的来说，这项研究提供了更好的了解气溶胶喷射打印过程，包括有价值的见解，以通知过程优化，强大的数据分析，油墨配方和打印机几何设计。
Aerosol jet printing offers a versatile, high-resolution digital patterning capability broadly relevant to flexible and printed electronic systems. Despite its promise and numerous demonstrations, the theoretical principles driving process outputs have not been thoroughly explored. Here a custom-built, modular printing system is developed to provide a head-to-head comparison of two print nozzle geometries to better understand the technology. Print resolution data from a range of process parameters are analyzed using a support vector machine framework. The linear deposition rate is identified as a key variable, which can confound careful studies of printing performance. Taking this into account, a clear difference is observed between the printheads, corresponding to a difference in resolution of 57% ± 11% under typical conditions. Models to understand differences in aerodynamic and mass transport effects identify enhanced drying within a large diameter printhead as a likely cause of this difference. Overall, this study provides improved understanding of the aerosol jet printing process, including valuable insight to inform process optimization, robust data analysis, ink formulation, and printer geometric design.