The scope of this course is to provide the participant with a general understanding of the interdisciplinary field of lab-on-chip devices. We will discuss the different stages of lab-on-a-chip development, such as design, materials (silicon, glass, and polymer), microfabrication, microliquid handling and microliquid handling components, back-end processing, functional integration, and applications in chemistry and the life sciences. These subjects will be illustrated with examples from research projects at the Department of Micro and Nanotechnology at the Technical University of Denmark.