Séminaire ETIS : Raphael Brum

Titre du séminaire et orateur

Emerging Memory Technologies: Circuit Design and Device Modeling.

Raphael Brum, School of Engineering, UFRGS (Brésil).

Date et lieu

Mardi 4 décembre 2018, 11h.

Université de Cergy-Pontoise, site de St-Martin 2, espace des colloques.


With the downscaling of CMOS technology, designing power-efficient and dense static random-access memories (SRAM) become more and more difficult -- and thus, expensive and time-consuming. A number of innovative technologies- collectively called "Emerging Non-Volatile Memories are being in development in the last two decades, both by industry and academia. Among these technologies, PCRAM, RRAM, Memristors and MRAM promise to deliver seamless integration with CMOS, SRAM-level performance, low power consumption and ease of integration with CMOS.

Furthermore, non-volatility might be exploited to implement new features throughout the whole memory hierarchy.  Designing analog and digital circuits to take full advantage of these technologies require proper tools and new methodologies.

In this talk, the emerging memory technologies will be presented from a designer standpoint, highlighting the Spin-Transfer-Torque Magneto-resistive Memory (STT-MRAM). We will then discuss some aspects of compact modeling and micromagnetic co-simulation of Magnetic Tunnel Junctions, the basic building block of MRAM memories, as well as application of these models in circuit design.

Short Bio

Raphael Brum holds a Ph.D. in Microelectronics from University of Montpellier - UM (2014), a M.Sc. degree in Microelectronics from UM (2011) and a Computer Engineering Degree from Federal University of Rio Grande do Sul - UFRGS, 2007. He is currently an Associate Professor at the Electrical Engineering Department, School of Engineering, UFRGS. He is currently researching compact modeling and co-simulation of Magnetic Tunnel Junctions (MTJ), the basic building block of MRAM memories. During his Ph.D., Raphael was directly involved with this technology, investigating new methodologies for designing non-volatile VLSI circuits. Prior following the academic path, Raphael was a Research and Development Engineer in the field of Electronic Design Automation (EDA).