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In response to increasing reliability requirements in power electronics and the cost advantage over silver sintering, copper sintering is increasingly becoming the focus of research in microelectronic packaging technology. One challenge, however, is the lack of tacking in dried copper pastes and preforms after the chips have been placed. Especially in series production, the placed chips can shift and thus negatively affect the sintering quality. The aim of this work is therefore to develop a tacking agent that is compatible with the sintering process, fixes the chips and, if necessary, has a reducing effect on the copper surface.

What you will do

• Testing of reducing agents, binding agents and other chemicals and fixing the quantities on the properties of the tacking agent
• Chemical investigations of the tacking agents developed
• Analysis of samples sintered with tacking agent regarding residues and performance
• Literature research about the composition of tacking agents for soldering and the requirements for sintering

What you bring to the table

• Enrolled in one of the following or related fields of study: Chemistry, Engineering: Electrical Engineering, Materials Science
• Chemical understanding and knowledge of surface chemistry
• Analytical methods such as DSC, TGA and mass spectroscopy
• Fundamentals of materials science and basic knowledge of the sintering process in power electronics
• Structured, independent and results-oriented way of working with test planning
• Ambition, creativity, motivation, ability to work in a team and commitment in everyday work
• Fluent in German and/or English

What you can expect

• Challenging tasks in highly relevant and application-oriented fields
• Research on future-oriented technologies
• Flexible working hours and a modern research infrastructure
• A dynamic team in an open and collaborative working environment

We value and promote the diversity of our employees' skills and therefore welcome all applications - regardless of age, gender, nationality, ethnic and social origin, religion, ideology, disability, sexual orientation and identity. Severely disabled persons are given preference in the event of equal suitability.Remuneration according to the general works agreement for employing assistant staff.

With its focus on developing key technologies that are vital for the future and enabling the commercial utilization of this work by business and industry, Fraunhofer plays a central role in the innovation process. As a pioneer and catalyst for groundbreaking developments and scientific excellence, Fraunhofer helps shape society now and in the future.

Interested? Apply online now. We look forward to getting to know you!

If you have any questions about this position, please contact us at Ivi.bewerbung.studenten@ivi.fraunhofer.de
You can find more information about the institute atwww.ivi.fraunhofer.de

Fraunhofer Institute for Transportation and Infrastructure Systems IVI

www.ivi.fraunhofer.de

Requisition Number: IVI-SHK-00755