New fast curing isotropic conductive adhesive for electronic packaging application

With the rapid development of technologies on high density assembly and packaging in electronic industry, isotropic conductive adhesive (ICA) has been paid more and more attention as a potential substitute of solder, due to its advantages of low processing temperature, simple processing conditions and good manufacturability. However, the curing time of most traditional ICA is more than half an hour. The process duration of ICA is 2 or 3 times longer than that of solder. Thus, low efficiencies of energy using and product manufacturing has been one of factors which limits widely application of ICA. Generally, the curing speed of ICA depends on types and amount of curing agent as well as curing temperature. In our previous experiments, the effects of curing temperature and amount of curing agent have been investigated. So, the present work attempts to choose a new kind of curing agent to shorten process duration of ICA. By using new curing agent, the curing duration of ICA could be shortened in 5 minutes with a high curing rate compared with the previous version. In addition, the basic performance including bulk resistivity and viscosity are also investigated in this work. Finally, we present some discussions about the further optimization of performance, for example regarding the ways of achieving better electrical conductivity with lower filler content and improvement of viscosity etc. © 2010 IEEE.

Fu, C.Shanghai University (författare)
Chen, Si,1981Shanghai University(Swepub:cth)sich (författare)
Cui, H.Shanghai University (författare)
Liu, X. (författare)
Chen, T.Shanghai University (författare)
Liu, Johan,1960Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jliu (författare)
Shanghai UniversityChalmers tekniska högskola (creator_code:org_t)

Ingår i:Proceedings - 2010 11th International Conference on Electronic Packaging Technology and High Density Packaging, ICEPT-HDP 2010; Xi'an; 16 August 2010 through 19 August 2010:Article number 5582446, s. 199-2019781424481422

Av författaren/redakt...: Du, Wenhui; Fu, C.; Chen, Si, 1981; Cui, H.; Liu, X.; Chen, T.; visa fler...; Liu, Johan, 1960; visa färre...

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