L-3 Amorphous-Si Microbolometers Reviewed

Laser Focus World published an article on L-3 amorphous-silicon bolometers IR sensors. Starting form the history, the paper says that properly processed amorphous silicon can achieve temperature coefficient of 5%/degC which makes it the preferred material for uncooled IR imagers. The pixel supports signal integration and averaging in chained switched-caps:

The article is written by Charles Hanson, L-3 Electro-Optical Systems (L-3 EOS) CTO for infrared products.