Life cycle assessment of a SAW filter

Abstract

The environmental implications associated with microelectronic products are significant. Most of the environmental impacts occur during the manufacturing stage which involves intricate and environmentally sensitive processes. This research project was carried out to assess and appreciate the environmental performance of a typical microelectronic product through a Life Cycle Assessment (LCA). A Surface Acoustic Wave (SAW) filter was chosen as the functional unit of this LCA study. All the processes involved in the manufacturing of a SAW filter were identified and analysed in detail. Process clusters were developed for the ease of data collection. Using these clusters as a basis, life cycle inventory data was quantified and is tabulated in this dissertation. The quantified inventory data was analysed using a demonstration version of Simapro 7.0 software. Impact assessment method, ‘Eco-indicator 99’ was chosen for the analysis and the results for some of impact categories are presented. Life cycle interpretation was conducted to establish validity and reliability of the inventory and impact assessment results. Environmentally culpable processes and inventory items have been highlighted and finally, some recommendations have been made based on the results of this LCA.