Foil-to-foil lamination and electrical interconnection of printed components on flexible substrates
We described and compared two foil-to-foil lamination and interconnection methods. Anisotropic conductive adhesive (ACA) method requires less processing steps. Through foil vias (TFV) method proved to be more robust to cyclic bending forces. ACA and TFV methods shown to have high reliability during environmental ageing. The methods are demonstrated for two types of foil-based humidity sensors.
environmental ageing foil-to-foil interconnection anisotropic/isotropic conductive adhesives (aca/ica) low-temperature lamination cyclic bending tests foil-based humidity sensing