Maher Kayal

Related publications (211)

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This paper analyzes some advantages of Silicon-on-Insulator (SOI) based photodetectors for bioluminescence imaging. It shows that SOI based sensors not only solve the bulk carriers problem, it can also act as a very selective spectral filter by acting as a ...

Ieee2015

Modeling Parasitic Vertical PNP in HVCMOS

Maher Kayal, Jean-Michel Sallese, Camillo Stefanucci, Pietro Buccella

High voltage CMOS active devices inherently have a parasitic vertical bipolar transistor. The parasitic PNP structure can be activated during high-power switching operation causing a potential shift of the substrate. In this work a spice-modeling approach ...

IEEE2015

Spice Simulation of Passive Protection in Smart Power ICs

Maher Kayal, Jean-Michel Sallese, Camillo Stefanucci, Pietro Buccella

When designing in Smart Power technologies, TCAD simulations are mandatory to design effective passive protections against parasitic couplings due to minority carriers. The objective of this paper is to propose a spice-based approach to characterize electr ...

Ieee2015

Toward direct light-to-digital conversion using a pulse-driven hybrid MOS-PN photodetector

Maher Kayal, Adil Koukab, Denis Sallin

In this Letter, a direct light-to-digital converter based on an MOS-PN photodetector driven by pulsed voltage is presented. The objective is to avoid any analog-to-digital or time-to-digital conversion and, thereby, to pave the way for a new generation of ...

Optical Society of America2015

Modeling Minority Carriers Related Capacitive Effects for Transient Substrate Currents in Smart Power ICs

Maher Kayal, Jean-Michel Sallese, Camillo Stefanucci, Pietro Buccella

This paper presents an extended model for transient and ac circuit-level simulation of minority carriers propagation through the substrate of smart power integrated circuits (ICs). A p-n junction and a diffusion resistor with capacitive components are prop ...

Institute of Electrical and Electronics Engineers2015

A dynamic operation of a PIN photodiode

Alexander Tagantsev, Maher Kayal, Adil Koukab, Serguei Okhonin, Maxim Gureev, Alexander Kvasov, Marc Pastre, Denis Sallin

Traditionally, photodiodes operate at static reverse bias, and incident light intensity is obtained from the relatively week photocurrent. In this paper, we introduce a different concept of photodiode function: the photodiode is used in a dynamic regime wh ...

American Institute of Physics2015

Design and Measurement Methodology for a Sub-picoampere Current Digitiser

Maher Kayal, Evgenia Voulgari, François Krummenacher

This paper introduces some design and measurement techniques that were used in the design and the testing of an ASIC for ultra-low current sensing. The idea behind this paper is to present the limitations in sub-picoampere current measurements and demonstr ...

Ieee2015

Pipelined Numerical Integration on Reduced Accuracy Architectures for Power System Transient Simulations

Maher Kayal, Georgios Lilis, Theodoros Kyriakidis, Guillaume Olivier Lanz

This work concerns a dedicated mixed-signal power system dynamic simulator. The equations that describe the behavior of a power system can be decoupled in a large linear system that is handled by the analog part of the hardware, and a set of differential e ...

IEEE2014

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We present the design considerations of an autonomous wireless sensor and discuss the fabrication and testing of the various components including the energy harvester, the active sensing devices and the power management and sensor interface circuits. A com ...

Springer2014

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Minority carriers diffusion currents are particularly important in parasitic substrate couplings of Smart Power ICs. In CMOS technologies the P-substrate potential is imposed by P+ contacts and N-wells by N+ highly doped implantations. The doping concentra ...

IEEE2014