Towards sustainable manufacturing in microelectronics: Recycling and waste minimization strategies

Abstract

The rapid growth of microelectronics manufacturing has led to significant environmental challenges due to intensive resource consumption and increasing volumes of electronic waste. This study investigates sustainable manufacturing pathways through advanced recycling and waste minimization strategies aimed at improving environmental performance and resource efficiency in microelectronics production. Three circular approaches mechanical-hydrometallurgical processing, electrochemical-solvent recovery, and a hybrid design-for-recycling model were experimentally evaluated against a conventional linear baseline. Key performance indicators, including metal recovery rates, energy consumption, greenhouse gas emissions, processing cost, and waste diversion, were analyzed using statistical methods, including one-way ANOVA and confidence interval estimation.The results revealed that all circular strategies significantly improved performance metrics compared to the linear baseline. Notably, the hybrid design-for-recycling approach achieved over 90% material recovery for critical metals, reduced energy use by more than 50%, and lowered GHG emissions by approximately 55%. Waste diversion rates increased from 15% to over 80%, accompanied by a reduction in unit processing costs. These findings demonstrate that integrating process innovations with circular economy principles can offer a practical and effective alternative to conventional manufacturing practices.The study concludes that adopting integrated recycling and waste minimization strategies can substantially reduce the environmental footprint of the microelectronics industry while enhancing economic feasibility. Practical recommendations include promoting modular design, integrating multiple recovery technologies, strengthening policy frameworks, and encouraging cross-sector collaboration to enable large-scale industrial implementation. This research contributes to the growing body of knowledge on sustainable manufacturing and provides a scalable pathway for achieving greener and more resilient microelectronics production systems.