News : Technological challenges

This thesis concerns the field of HgCdTe infrared detectors for astrophysical applications, for which the Infrared Laboratory of CEA -Leti is a world leader. The student will join the infrared laboratory which includes the entire detector manufacturing process. He will produce the samples using the technological means of elaboration available in the Leti clean room. […] >>

Over the past 20 years, wireless communication systems have continued to evolve and offer new services. Today, the success is such that the frequency bands below 10GHz are saturated and we are now turning to millimeter band frequencies. These frequencies offer the possibility to develop systems with higher data rates. However, they require beamforming to […] >>

Uncooled thermal infrared cameras, based on the micro-bolometer technology, are present in several domains of application: industrial monitoring, automotive, automation, defense … To follow those high volume markets, there is a strong competition to develop more performant focal plane arrays, with smaller pixel pitch and including innovative optical functionalities. In this miniaturization context and optics […] >>

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 […] >>

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 […] >>