New Materials by Photopolymerization

Abstract

Despite lateral resolution being the most intensely studied topic in photopolymer research, vertical resolution properties finally add the decisive momentum to reach the desired performance in photopolymer layers. We will describe four different classes of industrial photopolymers on the basis of a light absorption and penetration model: microelectronic layers featuring submicron resolution, photopolymer materials for the manufacture of Printed Wiring Boards putting emphasis on chemical and mechanical stability of the permanent layers, three-dimensional stereolithography systems exhibiting tailor-made in-depth build-up of mechanical stability and thick-layer photolithography touching the centimeter-range.