PhD position - Reliability of 3D avalanche photodetectors
CEA Tech

PhD position - Reliability of 3D avalanche photodetectors

France 31 Oct 2021

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OPPORTUNITY DETAILS

State University
Area
Host Country
Deadline
31 Oct 2021
Study level
Opportunity type
PhD
Specialities
Eligible Countries
This opportunity is destined for all countries
Eligible Region
All Regions

SL-DRT-21-0830

RESEARCH FIELD

Photonics, Imaging and displays

ABSTRACT

STMicroelectronics develops various CMOS-based technologies for imaging. The rise and democratization of image sensors is leading to a diversification of technological uses such as high-resolution imagery and telemetry for domestic and automotive use. One of the challenges is to meet market needs and adapt to the competition by constantly improving the performance and reliability of devices.The objective of this thesis is to study and model the reliability of avalanche photodetectors for single photon detection. The principle of this sensor lies in the ability to measure the transit time between an optical source and the detector, from a few centimeters to several tens of meters while being insensitive to the surrounding light. A matrix made up of thousands of pixels makes it possible to restore a faithful 3D image of the target. To date, first tests show that the detector degrades over time, leading to a loss of sensitivity and degradation of measurement precision. Quantifying these effects and understanding these drifts is absolutely necessary to improve the manufacturing process and develop a predictive model of reliability.The thesis will focus equally between the reliability of a single pixel and the reliability of a pixel matrix, in order to approach product reliability. The candidate will rely on a set of characterization and reliability measurement tools, as well as modeling and simulation tools developed at STMicroelectronics.

LOCATION

Département Composants Silicium (LETI)

Laboratoire de Caractérisation et Test Electrique

Grenoble

CONTACT PERSON

COIGNUS Jean

CEA

DRT/DCOS//LCTE

17 rue des Martyrs, 38054 GRENOBLE Cedex 9

Phone number: 0438783883

Email: jean.coignus@cea.fr

UNIVERSITY / GRADUATE SCHOOL

INSA Lyon

Electronique, Electrotechnique et Automatique (EEA)

FIND OUT MORE

www.leti-cea.fr

START DATE

Start date on 01-10-2020

THESIS SUPERVISOR

CALMON Francis

INSA Lyon

Phone number:

Email: francis.calmon@insa-lyon.fr

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