Offers “CEA”

37 days agoCEA

Thèse - Neuromorphic circuits and AI H/F

  • CDD
  • Grenoble (Isère)

Job description

Détail de l'offre

Informations générales

Entité de rattachement

Le Commissariat à l'énergie atomique et aux énergies alternatives (CEA) est un organisme public de recherche.

Acteur majeur de la recherche, du développement et de l'innovation, le CEA intervient dans le cadre de ses quatre missions :
. la défense et la sécurité
. l'énergie nucléaire (fission et fusion)
. la recherche technologique pour l'industrie
. la recherche fondamentale (sciences de la matière et sciences de la vie).

Avec ses 16000 salariés -techniciens, ingénieurs, chercheurs, et personnel en soutien à la recherche- le CEA participe à de nombreux projets de collaboration aux côtés de ses partenaires académiques et industriels.

Référence

2022-21951

Description de la Direction

Le Leti, institut de recherche technologique de CEA Tech, a pour mission d'innover et de transférer les innovations à l'industrie. Son cœur de métier réside dans les technologies de la microélectronique, de miniaturisation des composants, d'intégration système, et d'architecture de circuits intégrés, à la base de l'internet des objets, de l'intelligence artificielle, de la réalité augmentée, de la santé connectée. Le Leti façonne des solutions différenciantes, sécurisées et fiables visant à augmenter la compétitivité de ses partenaires industriels par l'innovation technologique.

Description du poste

Domaine

Technologies micro et nano

Contrat

CDD

Intitulé de l'offre

Thèse - Neuromorphic circuits and AI H/F

Statut du poste

Cadre

Durée du contrat (en mois)

36

Description de l'offre

Neuromorphic circuits and AI: the ionic transistor as a bio-inspired synaptic element. Comprehensive study using a multi-axis approach: design, fabrication, characterization and physical modeling

Functional emulation of biological synapses using electronic devices is considered the first step towards neuromorphic engineering and artificial neural networks (ANN). Ionic transistors are mixed ionic-electronic conductivity devices capable of capacitive and/or faradic gate-to-channel coupling, enabling non-volatile, multi-level output. Ion coupling offers significant advantages for the realization of neuromorphic devices/architectures, including a very low power consumption operation (fJ/synaptic operation, one to two decades lower than existing solutions).

The objective is to evaluate the synaptic behavior of ionic transistors. To do so, components embedding a selection of materials (transition metal dichalcogenides and oxides, solid state ionic conductors) and architectures will be implemented. The synaptic behavior will be evaluated in terms of linearity, symmetry, endurance, retention and energy consumption. A modeling phase will investigate the correlations between physico-chemical mechanisms (ionic conduction, intercalation, accumulation of charges at the interfaces) and electrical performances, and will allow to propose optimized components and associated integration modes. Simulations will be performed with neuromorphic computation algorithms and using experimental data of the realized components to compare with state-of-the-art solutions.

Environment:

The PhD work will take place in the frame of the collaboration between the LGECA and LSME in LETI, bridging the gap between original circuit design with advanced CMOS technology and innovative energy storage devices expertises, respectively. The PhD student will be regularly interacting with the team working on hybrid capacitors, covering device fabrication and electrical characterization, modelling, data analysis and physical simulations. The MINATEC innovation campus is home to 2,400 researchers, 1,200 students, and 600 business and technology transfer experts on a 20-hectare state-of-the-art campus with 10,000 m² of clean room space. An international hub for micro and nanotechnology research, the MINATEC campus is unlike any other R&D facility in Europe (http://www.minatec.com/minatec/minatec-campus-innovation-en-micro-nanotechnologies). The successful candidate will take advantage of this unique scientific environment and will occupy a key role in the investigation and understanding of these components.

Desired profile

Profil du candidat

We are looking for a graduated Master 2 student in physics attesting of successful attendance to courses in condensed matter physics and electrical engineering. Motivated to learn, with personal initiatives, on experimental techniques for physical and electrical characterization. The candidate should have a good scientific curiosity and versatility in order to deal with various disciplines (physics, electronics). Furthermore, a high creativity is required in order to propose innovative working schemes and new concepts.

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