stage - Selector - only memory - for Neuromorphic Circuit Design

Job description: Join CEA-Leti to pioneer a new class of neuromorphic circuits based on Selector-Only Memory / Threshold-Controlled Memory (SOM/TCM) devices. This PhD builds on the revival of cross-point arrays—shifting from 1S1R (PCM/OxRAM + OTS) toward SOM/TCM stacks with lower operating voltages, simpler integration, and clear paths to 3D scaling for AI-era density and bandwidth. Modern AI models require memory systems that are simultaneously dense, fast, and frugal. Conventional current-mode reads burn power and risk disturbing device states. In this project, you will (i) explore robust biasing and forming/programming strategies for OTS-based TCM cells, (ii) design and validate a capacitive read that charges a sensing node cutting read energy and minimizing read-disturb—and (iii) exploit the devices’ transient/oscillatory regimes to implement neuromorphic primitives (neurons/synapses) directly in memory Your work will span device-to-algorithm co-design: Verilog-A compact modeling and SPICE-level circuit design prototype SOM/TCM test chips and electrical characterization, and system-level evaluation of neural networks performances under realistic device constraints. You will work within Leti’s fabrication and test platforms and in close collaboration with IM2NP; the thesis is supervised by Prof. Jean-Michel Portal. If advancing ultra-low-power neuromorphic computing excites you, this PhD offers end-to-end, hands-on experience—from nanodevices to neuromorphic systems—at the intersection of AI and nanotechnology.

Your profile: Issu(e) d’une formation en microélectronique, vous avez un solide esprit de résolution de problèmes, une grande capacité d’adaptation et d’excellentes aptitudes en communication. Curieux(se), vous appréciez le travail expérimental en équipe. Vous vous intéressez vivement à la fois aux dispositifs électroniques émergents et aux réseaux de neurones artificiels appliqués aux systèmes d’IA de nouvelle génération. Conformément aux engagements pris par le CEA en faveur de l'intégration des personnes handicapées, cet emploi est ouvert à toutes et à tous. Le CEA propose des aménagements et/ou des possibilités d'organisation pour l'inclusion des travailleurs handicapés.

Level of qualification studied: Bac+4/5 - Diplôme de recherche technologique (DRT/DRI)

Languages: English Fluent,French Intermediate