Functional Foil Bonding

Functional foil bonding is a process for integrating printed, electrically functional foils into plastic components. Conductive structures are applied to a foil (e.g., PMMA or PC) and then bonded to the component using thermoforming and injection molding. In this process, the functionalized foil is first structured and contacted, then formed into the desired geometry and permanently bonded to the plastic body through a lamination process. This creates integrated conductive traces, sensors, or control elements. The process enables a high degree of functional integration, reduces the number of components and assembly steps, and improves design freedom as well as mechanical and electrical reliability.