Published in Microsystems & Nanoengineering
A new technology, termed “sliding walls,” has been developed for operating microfluidic devices (which function at sub-millimetre scales), whereby rigid or semi-rigid walls, hundreds of micrometres thick, slide within a microfluidic chip. Fluid control in micro-devices is currently achieved largely by expensive, bulky external valves and pumps or b...
Published in Microsystems & Nanoengineering
A chip-scale optical spectrometer using a microelectromechanical system allows selective and contactless chemical analysis in the field by means of infrared spectral sensing. The widespread application of optical spectrometers for chemical analysis has been hampered by their size and cost. However, a team of scientists from Egypt and France was abl...
This paper presents the fabrication of a micro heat pipe, in Low Temperature Cofired Ceramics (LTCC), as a cooling solution for electronic packaging. The micro heat pipe structure, produced using the ESL 41020 tape, is based on a grooved internal cavity, which ensures the process of cooling since it guarantees the evacuation of heat, by the use of ...
Open-Circuit Voltage Decay (OCVD) method was investigated for few decades as a simple and convenient method to characterize effective lifetime into Ge and Si p-n homojunctions. Minority carrier lifetime (MCL) is an important parameter to optimize device design where being able to investigate one type of carriers is an important goal. The p-n homoju...
International audience
Aluminium nitride piezoelectric thin films grown on sapphire are strong candidates for high-temperature surface acoustic wave (SAW) sensors, due to their thermal stability, large bandgap, high acoustic velocity and suitable electromechanical coupling. However, thin-film resonators need more design efforts than those based on bulk crystals, due to t...
International audience
We present recent results on high-speed waveguide p-in photodetectors with lateral hetero-structured Silicon-Germanium-Silicon (Si-Ge-Si) junctions monolithically integrated on Silicon-on-Insulator substrates. Optical photodetectors leverage a unique integration strategy, combining butt-waveguide-coupling and lateral Si-Ge-Si p-in hetero-junctions....
International audience
