You will participate in efforts aimed at reducing the environmental footprint of piezoelectric (PZE) technology applied to micro-actuators and sensors, while maintaining optimal levels of electrical performance and reliability. Currently, PZE technology primarily relies on PZT material (Pb(Zr,Ti)O3), which contains lead, as well as electrodes made from materials such as Pt, Ru, and Au, along with doping elements like La, Mn, and Nb to enhance piezoelectric properties and electrical performance. These materials not only come with a significant ecological cost but are also facing proven or imminent shortages. In the context of the necessary frugality associated with the energy transition, this internship aims to explore more environmentally friendly and sustainable microsystem technologies. The research will create a comparative analysis assessing the ecological footprint, electromechanical performance, and reliability of existing technologies (with lead) versus those under development (lead-free). To achieve these objectives, you will employ Life Cycle Analyses (LCA), electromechanical measurements, and reliability tests (accelerated aging tests)

This interdisciplinary research will encompass fields such as eco-design, materials science, and microelectronic manufacturing processes. You will benefit from the support of laboratories specializing in microsystems manufacturing and integration processes, as well as electrical characterization and reliability. Collaboration with the “eco-innovation” unit at CEA-Leti will also enhance the resources available for this project.

Trained in materials science, with a preferred background in micro/nano technology manufacturing processes, you are curious, detail-oriented, and possess strong analytical and synthetic skills. You have excellent communication abilities and a passion for hands-on experimental work.