Publication
Performance and Transient Behavior of Vertically Integrated Thin-film Silicon Sensors
Publications associées (58)
Burst Vision Using Single-Photon Cameras
Edoardo Charbon, Paul Mos, Mohit Gupta
Single-photon avalanche diodes (SPADs) are novel image sensors that record the arrival of individual photons at extremely high temporal resolution. In the past, they were only available as single pixels or small-format arrays, for various active imaging ap ...
IEEE COMPUTER SOC2023Highly Sensitive Detection of the Antidepressant Fluoxetine With an Extended Gate Field Effect Transistor
Mihai Adrian Ionescu, Shokoofeh Sheibani
Fluoxetine (FL) is one of the selective serotonin reuptake inhibitors, which is used as an anti-depressant, as well as anti-panic drug. In this work, a sensor for label-free recognition of trace amounts of FL is introduced, which is based on an extended ga ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022High sensitivity single-photon avalanche diode array
Edoardo Charbon, Claudio Bruschini, Ivan Michel Antolovic
The present invention relates to a photodetector array for capturing image data, comprising: - photodetector cells arranged on a substrate, each including a single-photon avalanche diode, wherein the active areas of the photodetector cells are neighbored a ...
2021A Wearable Low-Power Sensing Platform for Environmental and Health Monitoring: The Convergence Project
Mihai Adrian Ionescu, Thomas Ernst
The low-power sensing platform proposed by the Convergence project is foreseen as a wireless, low-power and multifunctional wearable system empowered by energy-efficient technologies. This will allow meeting the strict demands of life-style and healthcare ...
2021Modeling for Ultra Low Noise CMOS Image Sensors
The low-light performance of a CMOS image sensor (CIS) is one of the most important performance metrics in a camera, whether it is used in products for consumer electronics or in an image-acquisition system for machine vision or the Internet-of-Things (IoT ...
EPFL2020A CMOS Image Sensor Pixel Combining Deep Sub-Electron Noise With Wide Dynamic Range
Christian Enz, Assim Boukhayma, Antonino Caizzone
This letter introduces a 5-transistors (5T) implementation of CMOS Image Sensors (CIS) pixels enabling the combination of deep sub-electronnoise performance with wide dynamic range (DR). The 5T pixel presents a new technique to reduce the sense node capaci ...
2020An Ultra Low-Noise Micropower PPG Sensor
Nowadays, efficient and remote health monitoring is becoming increasingly important, given both the ageing of population and the combined action of an increase in obesity level and cardiovascular diseases. The healthcare industry is becoming more reliant o ...
EPFL2020Experimental Verification of the Impact of Analog CMS on CIS Readout Noise
Christian Enz, Assim Boukhayma, Raffaele Capoccia
In this article, the impact of the combination of the column-level gain and the correlated multiple sampling (CMS) on the noise of CMOS image sensor (CIS) readout chains is first analyzed. The theory is then validated experimentally with CIS readout chains ...
2020Compact Modeling of Charge Transfer in Pinned Photodiodes for CMOS Image Sensors
Christian Enz, Farzan Jazaeri, Assim Boukhayma, Raffaele Capoccia
In this paper, we propose a physics-based compact model of the pinned photodiode (PPD) combined with the transfer gate. A set of analytical expressions is derived for the 2-D electrostatic profile, the PPD capacitance, and the charge transfer current. The ...
2019Pixel sensor cell for cmos image sensors with enhanced conversion gain at high dynamic range capability
The present invention relates to a pixel sensor cell (1) for a CMOS sensor device comprising: - a photodiode (11) for generating photoelectrons; - a first transfer transistor (12) coupling the photodiode (11) with an intermediate node (IN) and configured t ...
2019