用于MgTiO电子功率器件的含铋基玻璃低温导电银浆的研究。

Study on Low-Temperature Conductive Silver Pastes Containing Bi-Based Glass for MgTiO Electronic Power Devices.

作者信息

Fu Yunsheng, Yu Xianglei, Liu Li, Tang Xianjie, Li Junpeng, Gan Guoyou

机构信息

Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China.

Kunming Institute of Precious Metals State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming 650106, China.

出版信息

Micromachines (Basel). 2023 Aug 25;14(9):1663. doi: 10.3390/mi14091663.

DOI:10.3390/mi14091663

PMID:37763826

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10535640/

Abstract

Low-temperature lead-free silver pastes deserve thorough investigation for sustainable development and application of MgTiO ceramics in electronic devices. In this study, a series of BiO-BO-ZnO-SiO-AlO-CaO glasses with suitable softening temperatures were prepared via melt quenching using a type of micrometer silver powder formed by silver nanoparticle aggregates. The composite pastes containing silver powder, BiO glass powder and an organic vehicle were then screen-printed. The effects of glass powder concentration and sintering temperature on the microstructure of the surface interface were also investigated. The results showed that the silver paste for microwave dielectric ceramic filters (MgTiO) possessed good electrical conductivity (2.28 mΩ/□) and high adhesion (43.46 N/mm) after medium temperature (670 °C) sintering. Thus, this glass powder has great application potential in non-toxic lead-free silver pastes for metallization of MgTiO substrates.

摘要

低温无铅银浆对于MgTiO陶瓷在电子器件中的可持续发展及应用值得进行深入研究。在本研究中，通过熔体淬火制备了一系列具有合适软化温度的BiO-BO-ZnO-SiO-AlO-CaO玻璃，使用由银纳米颗粒聚集体形成的一种微米级银粉。然后将含有银粉、BiO玻璃粉和有机载体的复合浆料进行丝网印刷。还研究了玻璃粉浓度和烧结温度对表面界面微观结构的影响。结果表明，用于微波介质陶瓷滤波器（MgTiO）的银浆在中温（670°C）烧结后具有良好的导电性（2.28 mΩ/□）和高附着力（43.46 N/mm）。因此，这种玻璃粉在用于MgTiO基板金属化的无毒无铅银浆中具有很大的应用潜力。