Composite materials offer a combination of properties and adiversityofapplications,whichcannotbeobtainedwith metals, ceramics or polymers alone. In particular, the inser- tion of a conductive phase (metallic or inorganic powders or conductive polymers) in an insulating polymer matrix, can result in an enhancement of its electrical conductivity. Var- iousstudieshavebeenfocusedonsuchelectricallyconduc- tive polymer composition (ECPCs), which do not have the […]
A new electrically conductive photosensitive composite resist has been formulated and used to build microcomponents. This composite material is based on the SU-8 photopolymer, an insulating negative-tone photoresist, in which silver nano-particles have been dispersed to enhance the electrical properties of the polymer. The properties of this new photosensitive composite have been characterized by optical […]
Microstereolithography is a technology at the interface of the microengineering and rapid prototyping domains. It has evolved from the stereolithography technique, and is also based on a light-induced layer- stacking manufacturing, As the resolution of the microstereolithography technique is far better than the one of rapid prototyping technologies, this technique is of particular interest in […]
In this paper, a survey is made of some technologies in which the photo-definable polymer is used as structural material and where physical properties of polymers are modified to change porosity, mechanical or electrical properties. The paper is organized in three sections: (a) 2D, multilayer photopolymers, (b) High aspect ratio and (c) 3D micro-stereolithography technologies. […]
