150 inversion-accumulation cycles are averaged to reduce pixel noise down to 0.5e level:
The result was measured on the technology demonstrator based on 100um standalone test structure, ~7μm MOSFET area, pixel is used in CTIA mode with >1000μV/e- conversion gain:
Another new CNES Caeleste presentation is "High QE, Thinned Backside-Illuminated, 3e- RoN, Fast 700fps, 1760×1760 Pixels Wave-Front Sensor Imager with Highly Parallel Readout."