Electrically Conductive Adhesives For Applications in Electronics
Bonding instead of soldering: Electrically conductive adhesives have many advantages over conventional soldering processes. Conductive adhesives are the perfect solution for making electrical contacts on temperature-sensitive substrates, as their curing temperature lies clearly below soldering temperature. In addition the adhesives are much more flexible than solder and are therefore better able to withstand vibrations. A further advantage over soldering is that conductive adhesives are lead- and solvent-free.
There are two types of electrically conductive adhesives: isotropic and anisotropic. Isotropic conductive adhesives (ICA) are electrically conductive in all directions. They are used in applications such as chip contacting and bonding electrically conductive SMDs.
Anisotropic conductive adhesives (ACA) contain special conductive particles in the µm range, which conduct electricity only in one direction. These adhesives are used, for example, in many sensitive structures on circuit boards, such as LCD connections or contacting flexible PCBs, or for bonding antenna structures on RFIDs.
With its Elecolit® range Panacol offers a broad spectrum of electrically conductive adhesives: single-component adhesives that can be simply applied with dispensers or jets or screen-printed, as well as two-component products that cure at room temperature and have a long storage life. Innovative hardener systems in many of the one part epoxy based adhesives develop cure within minutes.
The table below lists a selection of conductive sealing compounds and silver epoxy or acrylate resins from Panacol. Further products and custom solutions are available on request.