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A team of researchers from Leti, INAC, and ESRF combined X-ray tomography and Laue microdiffraction to determine the crystallographic orientation of micrometric grains. The technique, used in this case on 80-micron-thick copper vias, also indicates the area of deformation in the silicon matrix that surrounds the vias. Laue microdiffraction is very effective on thin films, […] >>

The Nanocharacterization Platform’s heating cell can be used to measure the properties of materials between –80°C and 600°C under controlled atmospheres. And, when coupled with ellipsometers, the thickness and the optical index of thin films can also be measured. Alternatively, Raman spectrometers can be added to study materials’ crystalline properties. Temperature measurements are particularly useful […] >>

A LED can potentially run for 50,000 hours. Unfortunately, the necessary AC/DC convertor limits LED lifespans to 5,000 hours, due to the convertor’s trouble withstanding high temperatures. Plus, the converters are bulky and expensive. Leti has now developed an electronic control block without inductance or capacitance, dedicated to lamps made up of at least 100 […] >>

Researchers at INAC are investigating a novel use of field gradient NMR: the in vivo study of the lipid vesicles of vegetable oils like sunflower, canola, and linseed. These micrometric vesicles are of particular interest to biologists and varietal selection experts, who currently use electron microscopy—which requires tedious, time-consuming sample preparation. In the research, field […] >>

Leti researchers teamed up with two manufacturers to produce an optical multiplexer for datacoms (links from 1 meter up to 10 km) as reliable as its current competitors. This in itself is a great achievement. Even more impressive, however, is that the researchers actually improved reproducibility for each batch of wafers. The research, which leveraged […] >>