IMT 25-2023 Bachelor- / Master Thesis: Development of a Bistable Shape Memory Folding Actuator

  • Institute of Microstructure Technology (IMT)
  • limited
  • full time

Your Tasks

As part of the DFG KOMMMA program, the SMD group at IMT is conducting research on novel concepts of origami-inspired cooperating foldable shape memory alloy (SMA) microactuators called "Re-Programmable Micro-Matter". Thus, complex, and adaptive 3D microstructures can be folded to enable promising future applications in minimal-invasive surgery, micro-assembly, and micro-robotics.

A large folding angle is critical for high configuration complexity and reliable latching of the structure. Since the folding angle is limited in conventional bidirectional SMA actuator design, in this work a novel SMA folding actuator with a bistable mechanical folding support will be developed and investigated. First, a mechanical arrangement consisting of a SMA snapping mechanism and a SMA folding actuator will be designed for Joule heating.

Subsequently, these components will be fabricated using state-of-the-art microfabrication technology and 3D printing, and the SMA folding actuator will be shape-set. Finally, a characterization setup will be built to determine the mechanical and electrical performance of the novel actuator.

The thesis can be written in German or English.

Your Profile

  • Field of study: Mechanical Engineering, Material Science, Mechatronics, Electrical Engineering, or similar
  • Knowledge in actuator technology, microfabrication technology, and CAD is beneficial.
  • Good team spirit, capability of independent self-motivated work


Carrasco Sanchez, Raquel

Tel: +49 721 608-42016

Contract duration

3-6 months

Contact person in line-management

For further information, please contact Vincent Gottwald, phone +49 721 608-22767, e-mail: