3D - PRINTED MULTILAYER PROCESSES FOR LIGHTWEIGHT WEARABLE AND FLEXIBLE MICROSYSTEMS

Three-dimensional (3D) printed microsystem has significance potential for ubiquitous and lightweight wearable devices. Here we present a metal deposition process for 3D microsystem integration accomplished through evaporating, sputtering and electroplating techniques. To provide a proof of principle for the approach, we demonstrate 3D printed two layers microsystem of Electrocardiogram (ECG) signal detection on polypropylene photopolymer (RGD450) substrate. Furthermore, the presented process can be extended for multilayers structure enabling realization and miniaturization of complex systems in planar and non-planar structures. Utilizing concepts of 3D printing with the proposed process and enhancement of adhesion properties provides the ability of implementing printed electronics in wide range of substrates material.