Influence of Curing Procedures on the Electrical Properties of Epoxy-Based Isotropic Conductive Adhesives

被引：2

作者：

Xiong Nana ^{[1
]}

Li Zhiling ^{[1
]}

Xie Hui ^{[2
]}

Zhao Yuzhen ^{[3
]}

Wang Yuehui ^{[2
]}

Li Jingze ^{[1
]}

机构：

[1] Univ Elect Sci & Technol, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China

[2] Univ Elect Sci & Technol China, Zhongshan Inst, Zhongshan 528402, Peoples R China

[3] Tsinghua Univ, Beijing 100084, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2016年 / 45卷 / 10期

基金：

中国国家自然科学基金;

关键词：

isotropic conductive adhesives; curing; volume resistivity; silver flakes; SILVER NANOPARTICLES; DEPENDENCE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A typical isotropic conductive adhesives (ICAs) composed of an epoxy-based binder containing micro-sized silver flakes was prepared and the effects of different curing procedures on the electrical properties of the ICAs were investigated. The results show that there is greater influence of the curing temperature on 55wt% silver loading, the volume resistivity of ICAs decreases to 4.5x10(-3) Omega.cm from 5.2x10(-2) Omega.cm cured at 250 and 180 degrees C, respectively. However, there is almost no effect on the high silver loading. The variations in electrical resistance of the ICAs with 65wt% silver loading was in situ monitored during the curing process, and it is found that the resistance reaches to 1.99x10(6) Omega at 180 degrees C after cured for 27 min, 1.39 x10(-3) Omega for 40 min, and 18.8 Omega for 60 min and the cooling process has almost no effect on the electrical resistance of the ICAs. The reasons for the dependence of the bulk resistivity on temperatures were also discussed in terms of the dispersing of the silver flakes in ICAs by SEM.

引用

页码：2524 / 2528

页数：5

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