Metal interconnections are formed in an integrated circuit by forming a wide trench in a dielectric layer. The acrylated amine is the reaction product of a polyamine and a monoacrylate; the ratio of equivalents of isocyanate groups to equivalents of amine groups is greater than 1 and the isocyanate and the acrylated amine reaction product can be applied to a substrate at a volume mixing ratio of 1:1. A sensor system is associated with the aircraft.