High performance electrically conductive adhesives from functional epoxy, micron silver flakes, micron silver spheres and acidified single wall carbon nanotube for electronic package

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作者
Cui, Hui-Wang [1 ,2 ,3 ]
Kowalczyk, Agnieszka [4 ]
Li, Dong-Sheng [1 ]
Fan, Qiong [1 ]
机构
[1] [1,2,Cui, Hui-Wang
[2] Kowalczyk, Agnieszka
[3] Li, Dong-Sheng
[4] Fan, Qiong
来源
Cui, H.-W. (cuihuiwang@hotmail.com) | 1600年 / Elsevier Ltd卷 / 44期
关键词
To develop high performance electrically conductive adhesives (ECAs); bi-modal ECAs were prepared by a matrix resin; micron silver flakes and micron silver spheres; and tri-modal ECAs were prepared by a matrix resin; micron silver flakes; micron silver spheres and acidified single wall carbon nanotube (ASWCNT). With the increase of nano silver spheres; the bulk resistivity of bi-modal ECAs decreased firstly and then increased while tri-modal ECAs' bulk resistivity firstly increased and then decreased with the increase of ASWCNT due to different electrically conductive channels were formed in them. After aged for 500 h under humid and thermal cycle of constant humidity level of 85% relative humidity at 85 C; the contact resistance shift of bi-modal ECAs was more than 20% and that of tri-modal ECAs was less than 15% showing tri-modal ECAs had lower and more stable contact resistance. The humid and thermal surroundings had bad effect on the mechanical properties of bi- and tri-modal ECAs; after aged for 500 h; they both were reduced about 50-65%. And a bi-modal ECAs and a tri-modal ECAs were optimized and investigated in detail which can be used in electronic packaging. © 2013 Elsevier Ltd;
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页码:220 / 225
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