DE – Page 25 – TechConnect Briefs

In vitro human model for tumor target screening in Cancer research

Mertsching H., Weimer M., Brunner H., Fraunhofer Institute of Interfacial Engineering and Biotechnology, DE

Monolayer and suspension cultures are still a highly artificial cellular environment for target screening and drug development. They have limited predictive value for target screening especially for nanomaterials. Target screening requires testsystems that mimic the [...]

Investigation of the Piezoresistive Properties of Nano Structured Amorphous Carbon for Force Sensor Applications

Lüthje H., Biehl S., Bandorf R., Sick J.-H., Peiner E., Tibrewala A., Fraunhofer IST, DE

In this contribution we report on investigations of the nano structure, morphology and nano topography of amorphous carbon films with respect to the piezo resistive, electrical and mechanical properties. Therefore a-C, a-C:H and doped a-C:H:X [...]

NanoDAC/fibDAC – Nanodeformation Measurement Techniques for Reliability Analysis of MEMS and NEMS

Keller J., Vogel D., Michel B., Fraunhofer Institute for Reliability and Microintegration (IZM), DE

Recent advances in microtechnology and the development of new electronics and micro/nanosystem devices in automotive industry, communication sector and life science have led to a strong need in material characterization on the micro and nano [...]

FEA Simulation of Thin Film Coils to Power Wireless Neural Interfaces

Kim S., Scholz O., Zoschke K., Harrison R., Solzbacher F., Klein M., Toepper M., Fraunhofer Institute for Biomedical Engineering, DE

To wirelessly transfer energy into active biomedical devices such as neural stimulators or bio-monitors implanted in the body, magnetic coupling of a pair of coils has been commonly used. The growing demand for highly miniaturized [...]

Enhancement of Mechanical Properties and Environmental Resistance of Glass Fibre from Nanocomposite Coating

Gao S.L., Mäder E., Plonka R., Leibniz-Institute of Polymer Research Dresden, DE

The severe surface flaws of brittle materials can be ‘healed’ using coating. Here, we describe an inexpensive and applicable process by which a nanometer-scale polymer coating layer based on styrene butadiene with varied clays and [...]

Quantum Dot Modified Multiwall Carbon Nanotubes

Olek M., Büsgen T., Mulvaney P., van Embden J., Hilgendorff M., Mulvaney P., Giersig M., CAESAR, DE

The key advantage of our research is a noninvasive functionalization of carbon nanotubes, which ensures good dispersion and stability of carbon nanotubes (CNT) in a vast range of organic and inorganic solvents. The method can [...]

Compact Bipolar Transistor Modeling – Issues and possible solutions

Schroter M., University of Technology Dresden, DE

Recently, several advanced compact bipolar transistor models ave become available to the design community. For existing technologies, these models (and their internal formulation) are believed to offer sufficient flexibility and accuracy, especially compared to the [...]

Bias Dependent Modeling of Collector-Base Junction Effects in Bipolar Transistors

Tran H., Schroter M., University of Technology Dresden, DE

An analytical formulation for the voltage and current dependent electric field in the collector of a bipolar transistor is presented. The new field expression is then employed for calculating the base-collector depletion capacitance and the [...]

Two-/Three-Dimensional GICCR for Si/SiGe Bipolar Transistors

Tran H., University of Technology Dresden, DE

This paper presents the derivation of a two- and threedimensional (2D/3D) generalized Integral-Charge Control Relation (GICCR) that is based on an exact physical relation for the transfer current of bipolar transistors. The resulting compact equation [...]

Parameter Preserving Model Order Reduction of a Flow Meter

Moosmann C., Rudnyi E.B., Greiner A., Korvink J.G., Hornung M., IMTEK, University of Freiburg, DE

Model order reduction is known to work reliably for MEMS simulations and can beused to speed up transient and harmonic computations tremendously. However, using standard model reduction techniques the generated reduced models are only able [...]