3D photocuring for circuit fabrication: Optimization of UV penetration properties via the morphology of silver particles

IF 11.1 1区 工程技术 Q1 ENGINEERING, MANUFACTURING
Mei-Ling Yang , Yi-Tian Yang , Guo-Xiang Zhou , Zhi-Hua Yang , De-Chang Jia , Yu Zhou
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引用次数: 0

Abstract

Photocuring printing technology is extensively applied in the manufacturing complex structure for electrical components owing to its excellent printing flexibility and efficiency. However, the limited penetration depth of UV photocured silver pastes (UVSPs), resulting from the complex interaction between incident light and conductive fillers, restricts circuit fabrication. In this work, we optimized the selection of flaky silver particles as UVSP fillers instead of the conventional spherical ones by simulating the penetration distribution of incident light in UVSPs with various morphologies through the finite element method. The fluidity, polymerization behavior, and printing properties of the UVSPs were investigated. As a result, flaky particles filled UVSP with the unique light penetration properties can be used for high-precision film printing, and the printing linewidth accuracy can be improved by over 20 μm under the same exposure conditions. Furthermore, the conductive film with flaky particles effectively prevented curling and peeling during low-solid-content sintering and exhibits a good electrical conductivity of 1.26 × 106 S/m. This study provides valuable technical guidance for the rapid preparation of low-cost, high-precision circuit printing using photocuring printing technology, which significantly reducing the manufacturing cost of printed electronic components.
用于电路制造的三维光固化:通过银粒子的形态优化紫外线穿透性能
光固化印刷技术以其优异的印刷灵活性和印刷效率被广泛应用于电子元件复杂结构的制造中。然而,由于入射光和导电填料之间复杂的相互作用,UV光固化银浆(UVSPs)的穿透深度有限,限制了电路的制造。本文通过有限元方法模拟入射光在不同形态UVSP中的穿透分布,优化了片状银粒子作为UVSP填料的选择,而不是传统的球形银粒子。研究了uv - vsp的流动性、聚合行为和打印性能。结果表明,具有独特透光性能的片状颗粒填充UVSP可用于高精度薄膜印刷,在相同曝光条件下,印刷线宽精度可提高20 μm以上。此外,片状颗粒的导电膜在低固含量烧结过程中有效地防止了卷曲和剥落,具有良好的电导率,为1.26 × 106 S/m。本研究为利用光固化印刷技术快速制备低成本、高精度的电路印刷提供了有价值的技术指导,从而显著降低印刷电子元件的制造成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Additive manufacturing
Additive manufacturing Materials Science-General Materials Science
CiteScore
19.80
自引率
12.70%
发文量
648
审稿时长
35 days
期刊介绍: Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects. The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.
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