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Doctoral Thesis - Numerical Simulation Of An Additive Manufacturing Process For Low-Impedance Electronics

Jan 23, 2025

Inkjet PhD Thesis Research paper CFD simulation Machine learning

Tobias Hehn - Community

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Numerical Simulation of an Additive Manufacturing Process for Low-Impedance Electronics

by Tobias Hehn

Advisors:

1. Univ.-Prof. Dr.-Ing. habil. Markus Klein

(Professor of Numerical Methods in Aerospace Engineering, Faculty of Aerospace Engineering at the University of the Federal Armed Forces Munich)

2. PD Dr.-Ing. habil. Jens Holtmannspötter

3. Univ.-Prof. Dr. Abdulla Ghani

The doctoral thesis was submitted at the Bundeswehr University Munich on 23 May 2024 and accepted by the Department of Aerospace Engineering on 17 Oct 2024.
The oral examination took place on 24 Oct 2024.

Abstract

The ongoing development in additive manufacturing opens up new possibilities for the creation of electronics with distinctive design freedom. The present work focuses on optimizing the high-frequency properties of additively manufactured electronic components by examining the effects of various manufacturing strategies on the microstructure and the resulting high-frequency properties.

As this is a highly dynamic problem on the microsecond and micrometer scale, computational fluid dynamics simulations was used to develop a block-based printing strategy. The results reveal that the new printing strategy significantly improves high-frequency properties through a smoother microstructure.

Applying machine learning to the simulation results provides deep insights into the high-dimensional parameter space, which can be reduced to a fraction of the computing time using active learning methods.