News : Leti
January 01 2023
Deep investigation of GaN/dielectrics gate stack through ab-initio simulations (DFT)
MOS-HEMT devices have erased a lot of interest in the state of art and specifically for compact and high power density applications. Thanks to the presence of a high bi-dimensional gas electron (2deg) at the AlGaN/GaN heterojunction and the very promising GaN thermal resistance and high mobility, these transistors are capable of supporting high currents […] >>
January 01 2023
Resonant antenna sensors for harsh environments
Microsystems sensors (MEMS) are the interface between the physical world and the digital world, and they are present today in most components and systems. A major challenge is the development of sensors that can be interrogated remotely, without electronic circuits or batteries, which will make it possible to envisage new applications as for example in […] >>
January 01 2023
Development of innovative etching processes for the integration of ferroelectric materials in non-volatile memories
Today, memories are once again a priority for two reasons: data production is growing exponentially. Data storage and transfer consumes up to 90% of the energy in computing systems. Non-volatile memories, which retain information when not powered, are needed to limit energy consumption. Ferroelectric memories (FeRAM or FRAM) are one of the emerging non-volatile memory […] >>
January 01 2023
Large scale parametric characterization, variability study and tests of quantum devices at cryogenic temperatures
A natural way to address the scalability of quantum devices is to design and realise arrays of individual quantum objects with nearest-neighbor interaction. In large-scale semiconductor quantum processors, a quantum bit is encoded in the spin of an isolated electron, trapped in an array of quantum dots (QDs) [1]. Over the years, we have studied […] >>
January 01 2023
Study of self-healing mechanisms for embedded systems
While topics around protection mechanisms or threat detection are currently well covered, post-attack repair is still not very present in the scientific literature. Objectives: The objective of this thesis is to identify solutions to restore critical functions or tasks of an embedded device after the detection of an unwanted event (due to a malicious attack […] >>