Optical imaging metrology for micromoulding cavity flows and products

Process imaging of micromoulding cavity flows has been performed using a transparent mould and high speed camera system creating a powerful method of studying the flow behaviour, shrinkage and internal stresses of polymeric materials during the micromoulding process. Results of these measurements will be presented with discussion of how they may be exploited to further understand crucial process parameters and physical models. An inline optical inspection technique currently under development is described in detail, along with initial results. This system offers 100% product inspection in three dimensions for microscale features.