Pot life improvement of low temperature and high-speed curable anisotropic conductive adhesive (ACA)

In this study, the imidazole-based curing accelerator powders were coated with a chosen agent to increase the pot life of ACA resin formulation. To accomplish this simple procedure, the coating processes were tried with a vapor or molten state of the coating agent. The coating processes with the vapor state could not be considered as an effective conformal coating method. However, a coating process using the molten state was effective at increasing the pot life, and showed minor effect with regard to the curing rate and processability of final formulation.