Gallium-Indium-Tin Liquid Metal Nanodroplet-Based Anisotropic Conductive Adhesives for Flexible Integrated Electronics

被引：37

作者：

Bo, Guyue ^{[1
]}

Yu, Huiwu ^{[2
]}

Ren, Long ^{[1
,3
]}

Cheng, Ningyan ^{[1
]}

Feng, Haifeng ^{[1
]}

Xu, Xun ^{[1
]}

Dou, Shi Xue ^{[1
]}

Wang, Hongqiang ^{[4
,5
]}

Du, Yi ^{[1
]}

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia

[2] Northwest Univ, Sch Phys, Xian 710127, Peoples R China

[3] Wuhan Univ Technol, Int Sch Mat Sci & Engn, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[4] Northwestern Polytech Univ, Ctr Nano Energy Mat, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

[5] Shaanxi Joint Lab Graphene, Xian 710072, Peoples R China

来源：

ACS APPLIED NANO MATERIALS | 2021年 / 4卷 / 01期

基金：

澳大利亚研究理事会; 中国国家自然科学基金;

关键词：

liquid metal; EGaInSn; anisotropic conductive adhesive; nanodroplet; flexible electronics; FLIP-CHIP; TECHNOLOGIES; RELIABILITY; PACKAGES; OXIDE;

D O I：

10.1021/acsanm.0c02870

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Compared with traditional solder joint bonding, an anisotropic conductive adhesive (ACA) provides an efficient and simple method for the interconnection of small-scale electronics. The wider application of ACAS for nanoelectronics is still suppressed, however, by the lack of durable and cost-effective conductive components. Herein, a series of core-shell eutectic gallium-indium-tin liquid metal (LM) nanodroplets (NDs) with different diameters have been successfully synthesized and regulated by a combination of laser irradiation and sonication. Due to their high conductivity and good fluidity, these LM NDs were used as soft conductive filler micro/nanoparticles for fabricating ACAS. The as-prepared ND-based ACAs present satisfactory anisotropic conductivity when used to interconnect small-scale electronic circuits. Highly durable anisotropic electrical performance was also maintained in flexible packed devices, even under bending or twisting operation modes.

引用

页码：550 / 557

页数：8

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