For the first time, images with a resolution of 3.2 billion pixels have just been taken using a giant focal plane equipped with 189 CCD photographic sensors, now assembled at SLAC (Stanford, USA). This focal plane will be at the heart of the camera of the Vera C. Rubin Observatory, the largest in the world, which will be used to carry out a unique survey of the sky, the LSST (Legacy Survey of Space and Time) from 2022 for 10 years. IJCLab has contributed with the LPNHE particularly to the design and optimization of these unique sensors, as well as the focal plane electronics of the camera.