TIMA laboratory


TIMA is a public joint research laboratory of the CNRS, Grenoble-INP and UGA (Shared Research Unit #5159). TIMA is a multinational team, with members and interns from all over the world. A large proportion of the research is performed in the context of cooperative projects with industrial and academic partners, supported by regional, national and European grants.

The research topics of TIMA cover the specification, design, verification, test, CAD tools and design methods for integrated systems, from analog and digital components on one end of the spectrum, to multiprocessor Systems-on-Chip together with their basic operating system on the other end.

More specifically, the Laboratory is structured in four research themes, whose main focus of investigation is characterized as follows:

  • AMfoRS : Architectures and Methods for Resilient Systems.
    • Multi-level specification and verification of hardware/software on-chip architectures: formal and semi-formal approaches
    • System-level modeling, analysis and testing
    • Dependability of integrated systems: fault detection/tolerance, on-line monitoring, self-adapting and self-healing circuits
    • Dependability evaluations: fault injections and alternatives (analytical or formal approaches), prediction of ageing effects on lifetime
    • Security of integrated systems: cryptographic accelerators, counter-measures against hardware attacks
  • CDSI : Circuits, Devices and System Integration
    • Asynchronous circuits and systems (NoC, GALS, Reconfigurable asynchronous logic, etc.)
    • Asynchronous Technology for hardware security
    • Non uniform sampling and processing (sensors, imagers, circuits, algorithms)
    • Microsystems for medical applications
    • Micro power generators for autonomous microsystems
    • Design and technologies for Integrated Micro and Nano Systems
  • RIS : Robust Integrated Systems
    • Fault tolerant and self-adaptive architectures
    • Design for Reliability face to aging, process variation and soft errors
    • Power management from the OS down to silicon
    • Self-test and self-repair
    • Adaptive, fault-tolerant, congestion-free and low-power routing
    • Array-level fault-tolerant and (variability, aging, and low-power)-aware task scheduling and allocation
    • Array-level error recovery
    • Robust massively parallel single-chip architectures
    • Robust Architectures for Nanotechnologies
    • Hardened Architectures for Space Applications
    • Evaluation of robustness and qualification: radiation testing, fault injection
  • RMS : Reliable Mixed-signal Systems
    • Design for test of analog, mixed-signal and RF circuits: new low cost BIST solutions for ADC, RF transceiver, and CMOS imagers
    • Estimation of test metrics: Aims to evaluate and explore embedded AMS/RF test solutions
    • Calibration of RF devices: post-fabrication calibration of RF circuits performed during production test with minimum cost increase
    • Embedded control for efficient energy management : optimization of The autonomy and life span of battery-operated wireless devices
    • Prediction and control of quality and energy management : multimedia applications and battery-operated wireless devices
    • High-level modeling of heterogeneous and multi-physic systems: Automation of the AMS modelling flow for the generation of high-level/reduced-order analytical models
  • SLS : System Level Synthesis
    • Parallel, configurable and reconfigurable architectures
    • Software frameworks for integrated systems
    • Synthesis, generation and simulation of digital integrated systems

Members of TIMA contribute to many international events, participate in a large number of European research activities, and have established scientific agreements with universities and research laboratories worldwide.

TIMA is at the origin of eight spin-off companies. Among the most recent ones, TIEMPO, was created in 2007 to industrialize the asynchronous circuit design technology invented by the CIS group; UROMEMS was funded by Hamid Lamraoui (MNS group) to develop his PhD results on MEMS pressure sensors, in cooperation with TIMC and the Parisian hospital Pitié Salpétrière: the company aims at solving urinary incontinence problems with a more sophisticated and better tolerated artificail urinary sphincter.

Higher education

Most academics in TIMA are affiliated to an Engineering department of INP or UGA. They have important pedagogical responsibilities; in particular, they are in charge of the 3I and the E2I departments at Polytech (UGA), the Integrated Electronic Systems at Phelma (INP), the Embedded Software and Systems at ENSIMAG and Phelma (INP), the CSINA Master (conception de systèmes intégrés numériques et analogiques). The academics at TIMA teach in all the above programs. They also teach 80% of the courses in the “Design” option of the Micro-Nano-Electronics Master program, and they are involved in the Computer Science License and Master programs.

Members of TIMA are responsible for four of the eight teaching and research platforms of CIME-Nanotech (Centre Inter-universitaire de Micro Electronique): clean room, embedded systems, micro-nano systems, and design. TIMA members are also active in continuous education at the Engineer level, taught every year to industry employees.

TIMA researchers are active in giving tutorials at international conferences, and they participate in research-level annual summer schools. SERESSA (International School on the Effects of Radiation on Embedded Systems for Space Applications) and MPSOC (International Forum on Application Specific Multi-Processor Systems on a Chip) were founded by members of TIMA.

  • 97 persons
  • 55 PhD candidates on average per year over the last 4 years
  • 14 PhD's theses on average per year over the last 4 years
  • 7 start ups
  • 1 patents on average per year over the last 4 years
Analog-to-Digital Converter

A sensor

Asynchronous analog-to-digital converter using non-uniform sampling