Post-curing behavior of two-component Electrically Conductive Adhesive

Electrically Conductive Adhesives (ECAs) are already widely used in the electronic industry, often deployed even in adverse conditions. Because of this, a series of accelerated climatic experiments was taken. During these tests, an interesting behavior of the two-component ECAs was observed: a quick, sharp drop of electrical resistance in a short time after the curing of the ECA. This indicated a possible problem with the stability of two-component ECAs and thus it mandated further research. Its results are published in this paper and seem to support the validity of the original finding - and suggest a possible risk when using certain conductive adhesives.