It generally refers to a kind of adhesive with conductive function. electroconductive adhesive is usually composed of organic matrix, inorganic conductive filler, solvent, coupling agent and other components. Organic matrix includes epoxy resin, silicone resin, polyurethime, phenolic resin, etc., of which epoxy resin is the most widely used. Inorganic conductive fillers include silver powder, gold powder, copper powder, etc., among which silver powder is the most widely used. The electroconductive adhesive added with silver powder is also called conductive silver paste. Conductive adhesive can be curing by heating, crosslinking reaction takes place in the organic matrix to form a network structure, and conductive fillers are evenly dispersed in the organic network to form conductive channels. electroconductive adhesive is mainly used for bonding chips to substrates or chips to chips in integrated circuits or discrete devices. electroconductive adhesive can not only fix chips, but also form conductive channels between chips and between chips and substrates, so as to realize the transmission of electrical signals. In some cases, it can replace solder.
Organic polymer materials -> Adhesives and coatings -> Adhesives