BE – TechConnect Briefs

Display Compatible pMUT Device for Mid Air Ultrasound Gesture Recognition

Huang C.H., Demi L., Mao S., Jeong Y., Cheyns D., Rottenberg X., Rochus V., IMEC, BE

1. BACKGROUND Recently, piezoelectric micromachined ultrasound transducers (pMUT) have proved their potential to make a reliable 2D ultrasound array. As shown in Fig. 1, the displacement of piezoelectric material layer is galvanised by electrical signals/acoustic [...]

Design considerations: From Micro-Opto-Mechanical Pressure Sensor (MOMPS) to Micro-Opto-Mechanical Microphones (MOMM)

Haouari R., Jansens R., Rochus V., Figeys B., Rottenberg X., Imec (Belgium) ; KU Leuven (Belgium), BE

With a trend towards a plethora of ‘smart’ devices, the MEMS microphone sector has maintained an exponential growth in recent years. For many applications microphones need to survive harsh environments or be bio-compatible. Micro-Opto-Mechanical-Pressure Sensor [...]

Numerical Investigation Of Rigid Microparticles Dynamics: Aggregation And Clogging Phenomena In Microfluidics By Discrete Element Method (DEM) And CFD Coupling

Shahzad K., Van Aeken W., Kamyab V.K., Mottaghi M., Kuhn S., KU Leuven, BE

Microfluidics has achieved a positive response in the industrial sector in the last two decades, i.e., due to its minute size plus control over all the chemical and physical properties at various flow rates (Re~1-10) [...]

Micro-Opto-Mechanical Pressure Sensor (MOMPS) in Sin Integrated Photonics Platform

Jansen R., Rochus V., Goyvaerts J., Vandenboch G., van de Voort B., Neutens P., O’Callaghan J., Tilmans H.A.C., Rottenberg X., IMEC, BE

This paper presents a Micro-Opto-Mechanical Pressure Sensor (MOMPS) manufactured in a SiN integrated photonic platform for short wavelength implementation. It implements a single wavelength Mach Zehnder Interferometer (MZI) system allowing a simple readout system. We [...]

Contributions of the main flour constituents to dough rheology, and resulting implications for dough quality and its assessment

Meerts M., Cardinaels R., Oosterlinck F., Courtin C.M., Moldenaers P., KU Leuven, BE

Although bread making has been practised for millennia, the fundamental understanding of the relations between dough microstructure and dough behavior/rheology is surprisingly limited. The complex dough matrix consists of a hydrated gluten network that is [...]

SUSTAINABLE steel production for the 2030s and beyond: the vision of the European Steel Technology Platform’s Strategic Research Agenda

Birat J.P., Malfa E., Colla V., Thomas J.S., ESTEP, BE

Steel is ubiquitous, even if it often remains invisible underneath decorative, protective or functional layers of other materials. This paper presents the European Steel Technology Platform (ESTEP) Strategic Research Agenda’s vision of how to manage [...]

SUSTAINABLE steel production for the 2030s and beyond: the vision of the European Steel Technology Platform’s Strategic Research Agenda

Birat J.P., Malfa E., Colla V., Thomas J.S., ESTEP, BE

Steel is ubiquitous, even if it often remains invisible underneath decorative, protective or functional layers of other materials. This paper presents the European Steel Technology Platform (ESTEP) Strategic Research Agenda's vision of how to manage [...]

Heterogeneous Nano-electronic Devices Enabled by Monolithic Integration of IIIV, Ge, and Si to expand future CMOS functionality

Thean A.V-Y., Collaert N., Waldron N., Merckling C., Witters L., Loo R., Mitard J., Rooyackers R., Vandooren A., Verhulst A., Veloso A., Pourghaderi A., Eneman G., Yakimets D., Huynh Bao T., Garcia Bardon M., Ryckaert J., Dehan M., Wambacq P., Caymax M., IMEC, BE

3D-IC’s by stacking and connecting dies of different functions with through-silicon via processes are emerging as an upcoming heterogeneous SOC enabler. Since connectivity between stacked layers may be limited by nearest-neighbor layers, the stagnation of [...]

Transmit and Receive of a cMUT Cell: Modeling and Experiments

Mao S.P., Rottenberg X., Rochus V., Helin P., Verbist A., Severi S., Nauwelaers B., Tilmans H.A.C., IMEC, BE

This paper presents the modeling, simulation and experimental verification of the transmit and receive properties of a single cell capacitive micromachined ultrasonic transducer (cMUT). It is a confirmation that the equivalent circuit model provides a [...]

Optimization of a Poly-SiGe MEMS Xylophone Bar Magnetometer based on its equivalent circuit

Rochus V., Farghaly M., Rottenberg X., Tilmans H.A.C., IMEC, BE

This paper presents the optimization of a poly-SiGe-based MEMS Xylophone Bar Magnetometer (XBM) using a novel characterization method based on the measurement of the forward/backward transmission gains S21/S12 of the XBM treated as a two-port [...]