PhD position - The Backend Selector: from material development to device performance

SL-DRT-19-0659

RESEARCH FIELD

Electronics and microelectronics - Optoelectronics

ABSTRACT

The maturity of non-volatile resistive memory technologies NVRM (such as phase-change memory PCM) for both Storage Class Memory (SCM) and embedded applications has demonstrated in recent years the need for the development of a reliable backend selector device to replace transistor selection. This technology allows the stacking of multiple levels of memory in 3D, in a so-called "Crossbar" architecture, increasing the storage density while taking advantage of the extraordinary performances of NVRM devices. LETI is today at the state of the art regarding the development of materials for integration into backend selector devices, especially for Ovonic Threshold Switching selectors (OTS). In the framework of this PhD new materials will be explored to meet the required specifications in terms of endurance, temperature stability, threshold voltage and scalability capability becoming more and more stringent. For this, the understanding of the physics and of the phenomena related to the functionality of these devices becomes fundamental. In addition, innovative memory+selector co-integration architectures will be investigated to finally achieve the integration of these solutions in an advanced Crossbar demonstrator.The candidate should preferably have a very good level of knowledge in semiconductor physics and materials science. The candidate will be in contact with experts from different fields because of the multidisciplinary nature of the work (materials, integration, electrical and physicochemical characterization, and modeling). In addition, good team spirit and a good English language proficiency is required.

LOCATION

Département Composants Silicium (LETI)

Laboratoire de Composants Mémoires

Grenoble

CONTACT PERSON

NAVARRO Gabriele

CEA

DRT/DCOS//LCM

17 rue des martyres38054 Grenoble cedex 9

Phone number: +33 4 38 78 60 96

Email: gabriele.navarro@cea.fr

UNIVERSITY / GRADUATE SCHOOL

INSA Lyon

Electronique, Electrotechnique et Automatique (EEA)

START DATE

Start date on 01-10-2019

THESIS SUPERVISOR

SOUIFI Abdelkader

AIST/ISI- CNRS/STIC

INSA Lyon

Phone number:

Email: abdelkader.souifi@insa-lyon.fr

« The age limit is 26 years for PhD offers and 30 years old for post-doc offers. »