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光电信息大讲堂第153期: LTCC/NiCuZn铁氧体多层复合材料的界面反应

作者: 时间:2020-04-16 点击数:

主    题: LTCC/NiCuZn铁氧体多层复合材料的界面反应
时    间: 2019 年 9月 4 日 16 : 00 - 17: 00
地    点: 南五楼 612 学术报告厅
报告人:  
向性一,台湾成功大学资源工程学系教授
邀请人:   雷    文,研究员

报告摘要:


The demand of small-sized DC-DC converters used as power sources to supply suitable voltage increases rapidly. The DC-DC converter is mainly composed of IC and SMD chip components. Through the integration of inductors, capacitors and resistors into one monolithic chip component, the integrated component will offer better performance and save more occupied space on the printed circuit board during assembling. Therefore, the passive component will become a compact integrated passive component. Mismatched densification kinetics and severe chemical reactions between the different materials could generate undesirable defects such as delamination, cracks and camber in the final products.  In this study, the cofiring behavior and interfacial interaction between a low K LTCC material and NiCuZn ferrites at 900 oC were studied. It was observed that the delamination occurred at the interface between LTCC and NiCuZn ferrites added with Bi2O3. It may be due to the Bi enriched at the interface and diffused into LTCC, which shifted the densification curve of LTCC towards low temperature, and hence resulted in the shrinkage mismatch between LTCC and NiCuZn ferrites.


报告人介绍:

   向性一教授于1995年毕业于台湾成功大学矿冶及材料科学研究所博士班。1995-2000年服务于美磊科技公司担任研发部协理。2000-2001年于义守大学材料系任教,2001年进入台湾成功大学资源工程学系任教迄今,曾任台湾陶瓷学会陶瓷季刊主编。目前兼任台湾成功大学永续环境试验所资源再生与管理中心主任。主要专长为粉末合成、陶瓷制程、功能陶瓷等。已发表SCI论文121篇,获授权专利14项。



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