Your contribution to something big:

-Project Background:

• Conductive particles pose a significant short-circuit risk in electronic assemblies. While initial studies have compared "new" and "aged" particle conditions, the time-dependent evolution of particle surface properties and their influence on electrical contact probability remain largely unexplored. Current risk assessments often assume a worst-case scenario with unaged particles. This project aims to provide a more nuanced understanding by investigating how various materials age over extended periods, how their surface chemistry changes, and consequently, how their ability to cause electrical breakdown evolves.

- Research Objectives:

• Characterize the long-term aging kinetics of selected conductive particle materials under defined environmental conditions. This involves tracking changes in surface chemistry and morphology over extended periods;
• Quantify the impact of long-term aging on the electrical contact probability and breakdown voltage of these particles. This will involve repeating and extending the experimental methodology outlined in the literature;
• Develop a semi-empirical model or framework to predict the aging-induced change in contact probability for different particle materials over time. This will allow for more dynamic and realistic risk assessments.

- Proposed Study Plan:

• Literature Review;
• Experimental Setup Familiarization;
• Particle Material Selection, Preparation & Initial Characterization;
• Accelerated Aging Experiments (Design of Aging Regimes) & Intermediate Electrical Testing;
• Detailed Characterization of Aged Particles & Data Analysis;
• Model Development (Propose a semi-empirical model that describes the time-dependent evolution of contact probability based on aging conditions and material properties);
• Discussion & Thesis Writing.

What distinguishes you:

• Academic Background: Materials Engineering, Chemical Engineering or a closely related field.

- Desired Competencies and Profile:

• Surface Science and Electrochemistry: Fundamental understanding of surface phenomena, oxidation and corrosion mechanisms and basic electrical contact principles, with willingness to deepen knowledge as required;
• Materials Characterization Techniques: Theoretical foundation in techniques such as SEM/EDX and electrical resistance measurements, combined with motivation to develop practical competence;
• Experimental Design and Data Analysis: Basic knowledge of experimental planning and data analysis, including statistical treatment, with interest in strengthening these skills through practical application;
• Problem-Solving and Critical Thinking: Analytical mindset with the ability to approach complex physical phenomena in a structured manner and develop technically sound solutions;
• Hands-on Laboratory Skills: Strong interest and willingness to develop practical skills in handling sensitive materials and operating laboratory equipment.

Work #LikeABosch includes:

🌐 Exchange with colleagues around the world

🧑‍⚕️ Medical office (psychology and general clinic) & Social Services Office on site

📚 Training opportunities (p.e., technical training, foreign languages training)

📈 Continuous professional development

💲 Access to great discounts in partnerships and Bosch products

🏋️ Sports and health related activities

🚉 Great access to public transports

🚌 Free transport from Porto

💰 Flexible benefits platform

🅿️ Free parking lot

🍽️ Canteen

Success stories don´t just happen. They are made...

Make it happen! We are looking forward to your application!

The Bosch Group has more than 400 000 employees around the world, present in 60 countries, and we are proud to impact people’s lives and to work towards a more sustainable future.

Bosch Car Multimedia, S.A. belongs to the Automotive Electronics division and is focused on making the vehicles our third living space. About 3.600 associates are committed to develop and produce high quality technology that shape change in mobility worldwide. The company' success lies in its highly specialized and innovative team, and on the technological know-how which makes Bosch the leading supplier in the automotive market.

At Bosch, we shape the future by inventing high-quality technologies and services that spark enthusiasm and enrich people’s lives. Our promise to our associates is rock-solid: we grow together, we enjoy our work, and we inspire each other. Join in and feel the difference in mindsets, cultures, generations, identities and perspectives. Everyone should bring their authenticity and work together respectfully. Bosch is an employer that values diversity and equal opportunities. We welcome applications from people with disabilities and we can provide reasonable accommodations during the recruitment process and in the performance of professional activity. By including everyone and ensuring equal opportunities we unleash our full potential.