DE – Page 14 – TechConnect Briefs

Networking in Micro/Nano Reliability Research Encouraged by EUCEMAN, the European Center for Micro- and Nanoreliability

Michel B., Hammacher J., Winkler T., Kaulfersch E., Fraunhofer ENAS, DE

Based on the conviction that advanced micro and nanotechnologies are continuing to have an ever stronger influence in all spheres of human life and will permeate them even more fully in the future, without, conversely, [...]

Influence of moisture on humidity sensitive material parameters of microelectonic relevant polymers

Walter H., Dermitzaki E., Wunderle B., Michel B., Fraunhofer IZM, DE

This paper presents various modified measurement methods for analysis the effect of moisture of thermo-mechanical properties of MEMS relevant polymer systems. It was developed an advanced measurement method, modified DMA multifrequency and hygroscopic swell analysis, [...]

A Novel In-situ Force Measurement Method for Real Solder Joints Fatigue Evaluation

Roellig M., Metasch R., Meier K., Fraunhofer Institute for Non-Destructive Testing, DE

The paper presents a novel thermo-mechanical test method for in-situ force measurement on real solder joints during thermal cycling test. To generate more exact fatigue data for solder joints, a small mechanical machine has been [...]

Advanced Virtual Qualification Methods to Reduce the Time-to-Market of Microelectronic Assemblies

Shirangi M.H., Koyuncu M., Keller J., Michel B., Bosch Mahle TS GmbH, DE

This work presents some recent progresses in reliability assessment of electronic assemblies in automotive industry and shows how coupled numerical-experimental techniques can help saving time and reducing the cost of IC package qualification. In order [...]

Visible Room Temperature Photoluminescence in Wet-Chemically Etched Silicon Nanowires

Sivakov V.A., Voigt F., Brönstrup G., Bauer G., Christiansen S.H., Institute of Photonic Technology, DE

Strong room temperature visible (red-orange) photoluminescence (PL) has been observed in wet chemically etched heavily (10E19 cm-3) and lowly (10E15 cm-3) doped silicon nanowires (SiNWs). Our observations strongly suggest that visible light emission at room [...]

Optical properties of silicon nanoparticles: Influence of etching, surface oxidation and surface functionalization

Gupta A., Kluge S., Schulz C., Wiggers H., Universität Duisburg-Essen, DE

In this study, we investigated the properties of Si-NPs after surface etching, surface re-oxidation and surface functionalization processes. Surface etching of as-synthesized Si-NPs with hydrofluoric acid causes a blue shift compared to their initial emission [...]

Adhesion of moulding compounds. Can material pre-selection increase the reliability of electronic components?

Pufall R., Michel B., Kaulfersch E., Infineon Technology AG, DE

It is well known that high temperature storage can degrade moulding compounds for chip encapsulation to such an extent that the adhesions to surfaces like copper (lead frames) or polyimide (chip coating) decreases drastically causing [...]

Dry native protein assays on on 3D and 2D substrates by non-contact Laser-Induced-Forward Transfer LIFT process

Genov S., Thurow I., Riester D., Borchers K., Hirth T., Weber A., Tovar G.E.M., University of Stuttgart & Fraunhofer Gesellschaft, DE

To produce nano-scale native protein trehalose patterns on 3D and 2D substrates in constant concentration by Laser-Induced-Forward Transfer (LIFT), ultrathin coatings on LIFT targets are needed [1]. The LIFT process is used as a non-contact [...]

NanoZeolites – small particles, small pore, big impact! Porous nanoparticles for environmental applications

Daniell W., Kohl A., Sauer J., NanoScape AG, DE

NanoScape has developed hydrothermal synthesis techniques which allow nanocrystalline, porous aluminosilicates (NanoZeolites) to be manufactured, currently on a 100kg p.a. scale. A range of NanoZeolites are available with pore sizes ranging from 3A to 100A. [...]

Polarity sensitive colloidal gold nanoparticles

Amin F., Yushchenko D., Zhang F., Zulqurnain A., Parak W.J., Philipps Universität Marburg, DE

Polarity sensitive gold nanoparticles have been synthesized and their fluorescence properties have been measured. The effect of external factors such as alcohols, polyamines and detergents has been investigated.