Technische Universität Braunschweig

Development of alternative binder for lithium ion battery based on epoxy resin

Bunzel F., Dilger K., Stammen E., Wagner M., Technische Universität Braunschweig, DE

The development of batteries for the e-mobility continuously creates new challenges for the researchers. To improve performance of lithium ion batteries, different approaches might be considered. Therefore the Institute of Joining and Welding (ifs) focuses [...]

Gentle Micropump based on Microelectromagnetic Actuator

Al-Halhouli A.T., Büttgenbach S., Kilani M.I., Waldschik A., Technische Universität Braunschweig, DE

This work presents the fabrication and development of a new multifunction micropump based on integrated electromagnetic microactuator. The novel design consists of a fluidic chip, two microfabricated polymer magnets and chip cover. These components form [...]

Micro-Fabricated Electrostatic Voltage Sensor with a Thin Bulk-Silicon Device Layer

Büttgenbach S., Dittmer J., Judaschke R., Technische Universität Braunschweig, DE

Micro-fabricated sensors made of a 20 µm thick bulk-silicon device layer for electrostatic voltage measurements are presented. A rotational, seesaw-like actuator with two electrically isolated electrodes on its ends forming parallel-plate capacitors with opposing electrodes [...]

Contactless Micro Position and Angular Sensor Device Based on Micro Structured Polymer Magnets

Büttgenbach S., Dittmer J., Feldmann M., Waldschik A., Technische Universität Braunschweig, DE

In this abstract we present a contactless micro position and angular sensor system which consists of fixed commercial magnetic sensors, such as hall sensors and a movable part with integrated micro structured polymer magnets. This [...]

Pneumatically driven Auxiliary Micro Tools for Desktop Factories

Büttgenbach S., Hoxhold B., Technische Universität Braunschweig, DE

This paper presents the design and the fabrication process of two novel pneumatically driven auxiliary micro tools that can be used to improve and to speed up assembling processes in desktop factories. The described micro [...]

Modeling and Design of Electrostatic Voltage Sensors Based on Micromachined Torsional Actuators

Büttgenbach S., Dittmer A., Dittmer J., Judaschke R., Technische Universität Braunschweig, DE

The optimization of design parameters and methods for electrostatic voltage sensors based on torsional actuators is presented. The analytical software model used for this optimization process is discussed and compared to measurement results. Voltage excitation [...]

Optimization of Masks for High Aspect Ration UV-Lithographic Patterning

Büttgenbach S., Triltsch U., Technische Universität Braunschweig, DE

The increasing complexity of micro actuators and micro sensors (e.g. electroplated micro coils, flux guidances, insulation and planarization layers) make new fabrication technologies and materials inevitable. For such purposes thick-film photo resists like SU-8 or [...]

Failure of Macroscopic Transport Models in Nanoscale Devices near Equilibrium

Grasser T., Jungemann C., Meinerzhagen B., Neinhus B., Technische Universität Braunschweig, DE

The shrinking of the device dimensions below 100nm is pushing the classical TCAD tools like the drift-diffusion (DD) or hydrodynamic (HD) models to their limits. While the impact of the shrinking on the accuracy of [...]