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The effect of functionalized silver on rheological and electrical properties of conductive adhesives

Q. Fan ; H. Cui ; C. Fu ; D. Li ; X. Tang ; Z. Yuan ; L. Ye ; Johan Liu (Institutionen för mikroteknologi och nanovetenskap, Bionanosystem)
ECS Transactions. 10th China Semiconductor Technology International Conference 2011, CSTIC 2011. Shanghai, 13-14 March 2011 (1938-5862). Vol. 34 (2011), 1, p. 811-816.
[Konferensbidrag, refereegranskat]

This research used low molecular surface modifiers, and observed that chemisorptions took place through the formation of a bond between silver surface and an adsorbed molecule, which improved the dispersion of silver flakes in the organic resin. Several different functionalizers, such as thioglycolic acid, silane and di-acid, were used to functionalize the silver surface. Results of shear viscosity, bulk resistivity etc. showed that by using these low molecular organic functionalizers, isotropic conductive adhesives (ICAs) with lower shear viscosity and better electrical conductivity at high silver fillers content were obtained. The adipic acid had the greatest effect on the rheological and electrical property of ICAs, so its weight percentage in silver flakes was also optimized; ICAs displayed the maximum electrical conductivity when there was 0.5 wt% of silver flakes.



Denna post skapades 2011-09-05.
CPL Pubid: 145785

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Bionanosystem (2007-2015)

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur